Fred

This page lists questions and answers that were posted by visitors named Fred.

Questions

The following questions were asked by visitors named Fred.

An 1800-kg car starting from rest accelerates constantly during the first 9.50 s of its motion. If the force acting on the car is 2150 N, what is the car;s speed at the end of this time? 2150 N = 1800 kg. (a) a = 1.194 (1.194)(9.5 s) = 11.347 m/s correct?...

what force must be exerted on an electron to move it from a state of rest to a speed of 3.5 x 10^7 m/s in a distance of 0.75 m? Look up the mass of the electron and call it m. Then compute the required acceleration a, using V = sqrt(2 a X) (Solve that for...

How do u find similar figures when using a proportion?'cause I don't get it dude. **EXAMPLE-On two sides-72m On the other 2-45m The next one says On one side-50m On the other- 80m Determine whether they are similar. I don't get it. Please help! THANX! it...

The bearing of A from B is 060 degrees. What is the bearing of B from A? Is it: a) 60 degrees b) 240 degrees c) 120 degrees d) 200 degrees p.s. The questions I sent earlier was an acccident To get reciprocal bearings, add 180 Thanks bobpursley

What exactly is holistic biology and what are some examples of it? Thank you.

Kim and Al need to determine the actual mass of lead(II) sulfate in grams that formed when 1250.0mL of 0.0500 M lead(II) nitrate was mixed with 0.2000 kL of 0.0250 M sodium sulfate. When the experiment was completed Kim determined that they had a 67.5% yi...

Please can someone help me with this question? By official definition, true wilderness is a roadless area with roads only built to its edges. Name some specific wilderness areas that fit this definition. Thanks!

Trees are renewable resources, aren't they? Because when people cut them down, you can just plant new ones. However, is the wilderness renewable? If not, how can this be? I am reading A Sand County Almanac and Leopold says that wilderness is a resource th...

Hi. I live in Wisconsin and I have to describe how productivity (amount of biomass produced), diversity (variety of species), complexity (number of species in trophic levels and number of trophic levels), and resilience (remaining stable) affects my ecosy...

Industrial melanism was seen in what insect?

From elements Arsenic to Antimony, which has the smallest Ionic Radius and why.

For Its Breakfast Special, a restaurant offers fried eggs or scrambled eggs with ham or bacon or sausage, plus a choice of 5 different kinds of toast. How many different breakfasts are possible?

A new car is sold with or without antilock brakes, with or without a cd player, with or without electric seats, and with or without a sunroof. How many different choices are there?

2*2*2*2 = 16 choices to my previous question?

A 50 kg block is on a 30 degree incline. The coefficient of friction between the block and the incline 0.05. If it is given an initial velocity of 10 m/s up the incline, how far will it travel until it stops?

A mixture of ethyne ( C2H2 ) and methane ( CH4 ) occupied a certain volume at a total pressure of 16.8 kPa. Upon burning the sample to form CO2 and H2O, the CO2 was collected and its pressure found to be 25.6 kPa in the same volume and at the same tempera...

I did a lab in which I added ionic solutions to tap and distilled water and another ionic solution. Distilled water is the control because it does not react to any solutions since it doesn't contain ions. But one of the lab questions I need to answer is:...

If a 1.75 m tall man is looking at a plane mirror from an eye which is 15 cm from the top of their head, what is the minimum length that the mirror must be so that he can just barely see his whole body in the mirror? How far up from the ground must the mi...

(1) A virtual image -7 cm tall and 17 cm away from a mirror is created by an object 7 cm away from a mirror. How tall is the object? What kind of mirror created the image? What is its focal length? (2) If a 1.75 m tall man is looking at a plane mirror fro...

Consider a solution that contains both C5H5N and C5H5NHNO3. (Kb for pyridine, C5H5N, is 4.0 x 10^-4) (a) Calculate the ratio of [C5H5N]/[C5H5NH+] if the solution has a pH of 4.50. (b) Calculate the ratio of [C5H5N]/[C5H5NH+] if the solution has a pH of 5....

A portion of an electric circuit connected to a 7 ohm resistor is embedded in 1.20 kg of a solid substance in a calorimeter. The external portion of the circuit is connected to a 100 volt power supply. (a) Assuming that all the heat generated by the resis...

How do i solve the functions domain, range, x intercept and y intercept for this function..there is a a shaded dot on (-4,-4) and then theres a curved line going up to an unshaded dot on (0,0)

At the beginning of George’s diet, he weighed 212 pounds, and 8 weeks later he weighed 198 pounds. Find the average rate of change of George’s weight.

(a) How do you calculate manufacturing overhead costs to the two products using activity based costing (ABC).

VF is a small accounting firm supporting wealthy individuals in their preparation of annual income tax statement. Every December, VF sends out a short survey to their customers, asking for the information required for preparing the tax statements. Based o...

A long jumper approaches his takeoff board A with a horizontal velocity of 30ft/s. Find the vertical component (vy) of the velocity of his center of gravity at takeoff for him to make the jump if he lands at a spot 22ft from point A. What is the vertical...

Which of the following is an example of an analogy? A) The results of this survey showed that people like our product more than our competitor's product. B) There is a national trend toward healthier eating; as a result we should see an increase in the sa...

A ball of mass 0.640 kg moving east (+x direction) with a speed of 3.10 m/s collides head-on with a 0.780 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision? 1. ball originally at...

Platinum has a face-centered cubic crystal structure and a density of 21.5 g/cm3. What is the radius of the platinum atom?

How many liters of oxygen gas at 153 degrees celsius and 0.820 atm can be produced by the decomposition of 22.4 g of solid KClO3? (The other decomposition product is solid potassium chloride)

If you have the q cal of a reaction, then obviously you can convert to q chem by negating your q cal. But what if you need to get to q rxn (q of the reaction)? Also, my textbook is claiming that the q rxn = -(q sol + q cal). How does that figure into this...

The specific heat of a solution is X J/g*degreesC and its density is Y g/mL. The solution was formed by combining Z mL of solution A with Z mL of solution B, with each solution initially at J degreesC. The final temperature of the combined solutions is D....

Youth Criminal Justice Act essay? Thesis: The YCJA should be strictly enforced, if it is to be successful. Give 4 possible body paragraph ideas!

If f(x) = (e^(x))sin(x) what is the 1000th derivative? Step are needed and the general rule/pattern

The question is to draw two cards from a standard deck without replacement. To win, both cards must be face cards. What is the probability you will LOSE? I know how to use complement to get the answer. Why does P(Not face)* P(Not face) produce a different...

A 2.28 m solution of the solute formic acid dissolved in the solvent H2O is available. Calculate the mass ( kg ) of the solution that must be taken to obtain 12.40 mol of formic acid. Correct Answer = 6.01 Molar Mass (g/mol): HCO2H 46.03 H2O 18.015 Densit...

decide whether the pair of lines are parallel,perpendcular, or neither. 4x + y = 8 3y - 4y = 10

Solve for x: 2^(-x+1) = 4(8^x) I try isolating the 4 but I can't seem to solve it correctly when using ln or log applications. The answer is supposed to be x=-1/4. Any help?

At the ocean, it is known that the tide follows a trigonometric path. At high tide, the water comes in to a point 1 meter from where I placed a flag. At low tide, the water comes in to a point 11 meters from the same flag. The time it takes from to get fr...

A helicopter pilot drops a package when the helicopter is 200 ft. above the ground, rising at 20 ft/sec. How long will it take for the package to hit the ground? What is the speed of the package at impact? I know you set s(t) equal to zero, so -16(t^2)+20...

You are replacing an old piece of machinery with a new one that offers improved technology and efficiencies to your company. The new machine will cost you $50,000 and it will provide you with a cash inflow of $10,500 PER YEAR for the next 7 years. You can...

A bullet with a mass of 55 grams moving with a speed of 100 m/s slams into and wedges in a 1.9 kilogram block of wood supported by a string initially at rest. Which one, conservation of energy or conservation of momentum, can be applied to this situation?...

Find the emf for the cell Cr(s) |Cr3+(aq, 0.37 M) || Pb2+(aq, 0.0095 M) | Pb(s). Answer in units of V Can someone please help me? I have the equation: 2Cr +3Pb(+2) --> 2Cr(+3) + 3Pb

A straight driveway perpendicular to a straight highway leads to a house located one mile away. A truck travels past the house traveling 60 miles per hour. How fast is the distance between the truck and the house increasing when the truck is three miles p...

I need to describe what a standard operating procedure is and what procedures it may involve. Thankyou.

what is the acceleration of a boy on a skateboard if the unbalanced forward force on the boy is 15 N? The total mass of the boy and the skateboard in 58 kg

a 1200 kg car has KE=300,000 J. What is the cars velocity?

solve. x^2 + 6x + 13 = 0

The sum of the measure of the first angle and one-fourth the second angle is 63.75 degrees;The two angles are complementary. How to find the measure of the angles?

Please give a particle diagram of the iron sulphur reaction

At elevated temperatures, SbCl5 gas decomposes into SbCl3 gas and Cl2 gas as shown by the following equation: SbCl5(g)<=> SbCl3(g) + Cl2(g) 1. What is the concentration in moles per liter of SbCl5 in the container before any decomposition occurs? 2. What...

At elevated temperatures, SbCl5 gas decomposes into SbCl3 gas and Cl2 gas as shown by the following equation: SbCl5(g)<=> SbCl3(g) + Cl2(g) (a) An 59.8 gram sample of SbCl5 (molecular weight 299.0) is placed in an evacuated 15.0 liter container at 182°C....

this is wierd to write but ill do my best. 12 4 square root 2 (the 4 is on top of the radical if that helps) - 7 4 square root 312 (again the 4 is on top of the radical) if this is confusing ill try to break it down more. thank you

A student applies an upward force of 49 N to a 5.4-kg physics textbook. Find the book’s acceleration (positive for up, negative for down).

Find how many moles of KF are produced when 100g of kci are used?

How Did Patria Mirabal foreshadow in the book " In the time of a butterflies" ?

I am confused with this. f(x) 1/4(x+9)^2+3 vertex, symmetry, and max. min. help please.

solve for y y^2-6y+9=25

f(x)=-x^2+2x+24

Anthony's family plants 15 trees each weekend. If t is the total number of trees planted and w is the number of weeks, what is the expression for the total number of trees, t, planted after w weeks.

Hi, Which correctly expresses the relationship between wavelength (L), speed (V) and perios (T) of a sinusodial wavform ? a) L = T/V b) L= 2fxV/ T c) L= 1 / V x T D) L= V/T e) L = V x T f) L= V x T/ 2f I feel it is option (d) ..please check for me .. and...

An acrostic poem for the bill of rights?

What energy is associated with a photon in the infared region of the spectrum having a frequency of 4.5*10^12s^-1

Simplify a(-2)power divided by b(6)power times c(-8)power so there are no negative exponents

Hi I need help with a problem The accuracy of what measurement must be increased in order to increase the accuracy for the specific heat? Thank You!

I am taking a ground school class for my private pilot license and am having trouble with weather, what is the best way to go about learning this stuff????

If f(x)= x^2 + 2x What is f(-x) What is f(1/a) Thanks!

Roger wants to carpet a rectangular room with the length of 8 ¾ feet and a width of 9 1/3 feet. If he has 85 square feet of carpet, how many square feet of carpet will be left after he covers the floor of the room?

The R&D organization has decided it wants to promote total involvement and create a learning organization. The community-building meeting is the mechanism to move this forward. You have decided to bring in other consultants from the Working Better Group t...

22. What connection can be drawn between Dickens's father and Tom? Both worked in a bank. Both favored straight facts. Both were irresponsible with money. Both had a gambling problem. 23. How do innovations in farming methods contribute to population grow...

1. Which word does NOT describe Neoclassical literature of the 17th century? balanced religious elegant concise 2. In lines 17-20 of Annus Mirabilis, who is Carthage? Thus mighty in her ships, stood Carthage long, And swept the riches of the world from fa...

i thought you were a helping site please help i read my lessons but i just coulnd answer some questions. help please i need to pass this test, i would really appreciate it your time. im new to this site

Find the area bounded by y= -0.5x+6, y= !/4 x and the y-axis. Sketch a graph of the two functions and shade in the area.

Find the volume generated when the area bounded by the curve y^2 = 16x, from x = 0 to x = 4 is rotated around the x-axis.

One in every 685 children born in the chicoutimi area of quebec province has tyrosinemia. It is cause by having two copies of the receissive allele. Under the assumptions of Hardy-Weinberg equilibrium, calculate the value of q required to produce this pro...

Molarity of NaOH solution = 0.06115 Volume of NaOH used = 15.50 mL Volume of unknown Sample = 10.00 mL Find the Moles of NaOH used? Find the molarity of H3PO4? Thanks!

A solution is 0.10M Pb(NO3)2 and 0.10M AgNO3. If solid NaCl is added to the solution what is [Ag+] when PbCl2 begins to precipitate? (Ksp PbCl2 = 1.7 x 10^-5; AgCl = 1.8 x 10^-10) The answers is 1.4 x 10^-8 How do I find the answer

At elevated temperatures, sodium chlorate decomposes to produce sodium chloride and oxygen gas. A 0.8915-g sample of impure sodium chlorate was heated until the production of oxygen gas ceased. The oxygen gas collected over water occupied 57.2 mL at a tem...

Is these answers correct? devoid infuriate jeopardize smug implore intimidate sibling sneer introvert vivacious 1-2. The people I love best can __me the most. No one can make me as angry as my parents and__s can. I guess close relationships are conducive...

Is these answers correct? condone, pathetic, feign, precedent, comtemplate gape furtive feasible, fiscal, punitive 1-2. "Would it be__ for us to buy a new copy machine?" Hal asked at the office budget meeting. The boss replied, "Unfortunately, our __situa...

Is these answers correct? devoid intimidate jeopardize sneer implore introvert sibling vivacious infuriate smug 1-2. The people I love best can __ me the most. No one can make me as angry as my parents and __s can. 3-4. Please don't __ me to help you with...

A popular brand of pressure washer claims to deliver 330 litres per hour of water at a pressure of 80 bar, drawing 1400 W of electrical power in the process. Pressure washers of this type consist of an electric motor that drives a small compressor to pres...

what is the molarity of 28.9 g of cacl2 dissolved in water to make 0.78 l of solution

Need help with coming up with a extraction flow scheme for separating the compounds in this mixture: aniline, p-anisic acid, octanol, and NaCl Thanks!

What kind of reaction is this (redox, precipitation, acid-base, or complex ion formation reaction)? 1. 3 Ca(s) + 2 Al^3+(aq) -> 3 Ca^2+(aq) + 2 Al(s) 2. LiHCO3(s) + heat -> Li2CO3(s) + CO2(g) + H2O(g) Complete the reaction: Ni(s) + 2 Na^+(aq) -> ?

How do I convert this decimal into a fraction? 3.083 (The last 3 is repeating by itself)

Which is true about a 99% confidence interval for a population proportion based on a given sample? I. We are 99% confident that the population proportion is in our interval. II. There is a 99% chance that our interval contains the sample proportion. III....

What is the area bounded by y=x^2 and y=x^3-2x?

If 1/8" = 30' how many fractions of an inch is 24'

How many litres of water at 100°C are vaporized by the addition of 5.00 MJ of heat

Find the linearization of f(x)=cos(x)-sin(2x) at x = 0.

The curve is given by x^2+2r(sqrt(y))=xy What is dx/dy when r is constant?

Given h(x)=(6x^2+x)/x , find h'(0)

a company plans to sell embroidered hats for $15. the company's financial planner estimates that the cost, y, of manufacturing the hats is a quadratic function with a y-intercept of 7,920 and a vertex of (150, 9,000). what is the minimum number of hats th...

Select the letter of the term that identifies the function of the phrase in parentheses in the following sentence: One goal is (to see potato-starch food boxes rather than Styrofoam ones). a. adjective e. object of a preposition b. adverb f. direct object...

How do the constants 5, 4, and 12 in f(x) = 5x^2 - 4x + 12, affect the derivative? Thanks!

Can someone explain how to solve this problem? Sand is being dumped on a conveyor belt onto a pile in such a way that the pile forms in the shape of a cone whose radius is always equal to its height. Assuming that the sand is being dumped at a rate of 10...

A surveyor standing 62 meters from the base of a building measures the angle to the top of the building and finds it to be 38°. The surveyor then measures the angle to the top of the radio tower on the building and finds that it is 45°. How tall is the ta...

A football is punted. Its height, H metres is given by the quadratic relation with equation: H = -5t2 + 21t, where t is the time in seconds after the punt. I tried to do this question on a test but I just ran out of time How is the easiest and quickest wa...

Which of the following integrals represents the volume of the solid formed by revolving the region bounded by y=x^3, y=1, and x=2 about the line y=10? a) pi*∫from (8-1) of (10-y)(2-y^(1/3))dy b) pi*∫ from (1-2) of (81-(10-x^3)^2)dx c)2pi*∫from (1-8) of y(...

Answers

The following answers were posted by visitors named Fred.

This site isn't very helpful, I'm afraid.

Aren't those examples just explaining that the environment should be examined because it plays a role on the individual? Is that really all the holistic view is about? I thought it had something to do with only looking at the whole and the input and the o...

Elizabeth, I've been to Yellowstone and I'm pretty sure it has roads throughout it. Ms. Sue, do all of those places in the map really not have any roads in them, but only to the edges?

Are humans allowed to go to Isle Royale? I don't think I'll be able to find whether or not there are roads at the dark green areas.

I know, but if you plant new trees, can you not create/supply new habitats?

So you're saying that when you create new habitats, it is no longer wilderness because of human interference? Don't polluting gases occupy every inch of the atmosphere? Are they not above every living thing on this Earth? Doesn't human influence reach eve...

Well if you're saying creating new habitats makes something not wilderness becuase of human interference how can you say something is wilderness when you agree that polluting gases reach wilderness? Can't pollution change wilderness?

thanks--i did do that--i always find it helpful to at least try and see if it is anyone's area of expertise

2*2*2*2 = 16 choices?

Yes. It simply means that your answer was lower than the correct amount. Just drop the negative.

The reason why is because they suck

If you reverse 2x^2-3x+1 to get 1-3x+2x^2, it becomes easier to factor: F irst terms must multiply to yield 1 O utside and I nside terms must add to yield -3x L ast terms must multiply to yield 2x^2 Therefore, the factors must be: (1-2x)(1-x)

1. If it falls 350 meters for every minute that passes, that means it must have fallen 350*5= 1,750 meters after 5 minutes had passed. So the answer is 1,750 meters higher. 2. Just represent the unknown numbers with letters so you can solve for them. That...

A single equation is not a system of equations.

-3*3 is the same as 3*3 with a negative sign in front. -3*3 = -9 So the new temperature would be -9 degrees Celsius.

the sum = +2 the product = -12 Use the same process I used for the second question. Remember to represent unknown numbers with letters and use algebra to solve them.

How do i solve the functions domain, range, x intercept and y intercept for this function..there is a a shaded dot on (-4,-4) and then theres a curved line going up to an unshaded dot on (0,0), it also has to be interval notation but im not sure how to do...

That is what i thought, thanks!

Thank you, Ms. Sue.

So the answer is C? Im really confused i think its comparing lions to managers at work

I have 1 more question please Which of the following statements is the correct use of a positive tone for bad news messages? A) There will be a delay in fulfilling your request. B) Sorry for your inconvenience. C) Please recheck the enclosed statement. D)...

wow, much help. thank you very much but i do have a quick question, v21² AND v22² are both in the same equation, are you saying that im supposed to put v21² AND v22² on the same side? like this.... (1/2)m1 v11² + (1/2)m2 (1/2)m1 v12² + (1/2)m2 = v21² v22²...

HEPES-> 238(.01) = 2.38g

A big ol bottle a win

Question simplified: a) how do you get q of reaction if you have q of solution, b) how do you get q of reaction of you have q of calorimiter, c) how do you get q of solution if you have q of chemicals, d) in general, should q of chemicals equal q of solut...

To do this problem you just need to use a few simple equations: V = V0 + at X = X0 + V0*t + .5*a*(t^2) and V^2 = V0^2 + 2*a*(X - X0) where V0 equals the initial velocity X0 equals the initial height t equals the time a is just the acceleration (gravity in...

I am assuming that the 1-.06 is actually 1.06. Therefore... g(x) = 5 5 / 23 = .21739 log(.21739) = x * log(1.06) log(.21739) / log(1.06) = x = -26.18999 For the first problem: A = Pe^(rt) 800 = 500 * e^(0.085 * t) 800 / 500 = 1.6 1.6 = e^(0.085 * t) Becau...

Wrong. B. 67 hundredths means 0.67 which is 67%. The decimal places goes, tenths, hundredths, thousandths, ten thousandths, hundred thousandths, and so on.

Use factorials I think.

Thank you. Now I know what I forgot. There are two ways of P(face)*P(not face) then add P(not face)* P(not face) Went brain dead.

Also, how high does the block swing after being hit by the bullet?

Actually, you can use the conservation of momentum first to find the initial velocity of the bullet-block system, and then you can plug that velocity into 1/2mv^2=mgh and solve for the height that the block swings, which gives a value of 0.403 m. Correct?

when v doubles it does the centripetal force does not increase by 2, but rather by 4.

i don't know the mass of the block, so how do I find the force of gravity. theta=arctan of what? because we are looking for the angle. I got acceleration=7.314 and time=27.4889.

SraJMcGin it makes no sense

so it would pretty much stay the same?

the answer is 10 times the square root of 2

2. they will be able to recall the directions and events which took place after they return to a fully conscious state.

IT MEANS WHAT ARE YOU STUDYING?

This answer was scored wrong, but I do not know why. If someone would kindly show me the error, I would appreciate it. First choice probability: 5/20 Second choice probability: 6/19 Third choice probability: 9/18 Total Probability: (5/20)(5/19(9/18)=3/76...

What size should the frame be?

B. Ag2SO4, Ksp = 1.5 × 10-5

Thanks, but for the first one, I thought it'd be no reaction since they are both metals. Is it possible for Ca and Al to react with each other?

How did you do it? :)

Thanks so much #yolo

so it should be 5/12+8/3=37/12?

a) b)1 c)standard deviation=

A puddle holds 150 g of water. If 0.50 g of water evaporates from the surface, what is the approximate temperature change of the remaining water? (Lv = 540 cal/g)

Would I need to multiply this to get the mass? (2.26*10^6)(5*10^6)

So the mass H20 would be 5E6/2260 X 2260 = 5E6 grams?

water density is 0.9584 L from 100°C

I mean 958.4 kg/m3 from 100°C

5E6/2260=2.21g then converted 2.21g to 0.00221L 0.00221X958.4= 2.119064

Select case marCode case “S” display “Single” case “D” display “Divorced” case “M” display “Married” case “W” display “Widowed” case else display ”Incorrect” endselect

Hello, i cant find out the values of x1,x2 can u help me please? sinx=2sinx+1 0=sinx+1 sinx=-1 <0 (III;IV) sinx=270* x1= ? x2= ?

which of the following questions should you ask to help determine suitability of a source? A. why was the source not in a database B. Are there any images C. How many pages does the source have D. Who authored the source

Oh sorry. That was my answer to my math problem: Name a fraction between 1/4 and 5/16. So was it right

49 inches tall? I am really be=ad at maths.

I got a 100% on this 1 D 2.A 3 B 4 B 5 C 6 C 7 B 8 C 9 C 10 A

they are for you to put your arms through

I would disagree because each method is different but u do come up with the same answer.

The radial line is in line with the string on the diagram and is going out from the block. The angle is in between the radial line and the block.

What are the largest and smallest areas that can be made with 100 yards of fencing

The Rf values would increase since you are increasing the polarity of the mobile phase. Normally the more polar the substance the slower it moves, however you are changing the relative polarity in the developing chamber.

6 more than one thired of a #

Thank you, but how you made that? What was the process?

I don't know the answer

alL LIVING THINS

Ahh yes forgot about zero. Thanks heaps

z = 6x + px + 2 z - 2 = 6x + px (take the 2 to the left hand side) z - 2 = x(6 + p) (Factorise the x out) x = z - 2 / 6 + p (Divide z - 2 by 6 + p to get x on its own)

I = PRN $100 = 800 x 0.05 x N (I= $100, P= $800, R=5%=0.05) $100 = 40 x N Therefore N = 2.5 It will take 2.5 years

That's all the book has given me. It has given no other information

Makes sense. Thank you

I tried but i keep getting the wrong answer. Can you please help me

Thank you. I must have made a mistake in my working out.

Thank you. I read a) wrong. I did Q a) just like I did b). Didn't notice that a) was compound interest.

1. C 2. B 3. A 4. C

a) (1,1) b) 1 c) 0.52 d) 0 e) can be different from

I never got $466 563.74. The answers in the textbook I use said that

How do you do them math(for my little brother)

It is a guess: Vishnu was congratulated by Harish on his success in the examination. Here I am changing from active voice to passive, I don't know if that is what they asked you to do.

Right! B) But I see no difference between A and B...

im asking the same question bud ;( been asking for eight years

Okay, I was not sure who was right at first but I just submitted it and @sdfghjkmsedrftgyhunjm was right the whole time for Art 7 A U5L5 Connexus

How does that work?