Todd

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

Questions

The following questions were asked by visitors named Todd.

I have to have three alternative ways to maximize food production in a developing country I am going to try and do Haiti They have had some major environment problem like soil erosion and deforestation I feel the food production can be helped if they had...

pros and cons of at least three alternative methods for maximizing food production

1.There are four charges, each with a magnitude of 2.5 µC. Two are positive and two are negative. The charges are fixed to the corners of a 0.29 m square, one to a corner, in such a way that the net force on any charge is directed toward the center of the...

Write an equation of the direct variation that includes the point (–3, –9). Direct variation can be expressed with this equation: y = kx Using your point, let's find k. -9 = -3k 3 = k Equation: y = 3x Thanks it makes sense

need to know which sign is greater than:< or >

solve for w w -8 = 9

simplify the following expression 10x - 12x

An alpha particle (which has two protons) is sent directly toward a target nucleus containing 80 protons. The alpha particle has an initial kinetic energy of 0.79 pJ. What is the least center-to-center distance the alpha particle will be from the target n...

Identify potential domestic and international sources of financing for your global venture project. Ineed atleast 3 or 4 soucres.

What is an integrative sentence? Explain please. Thanks. I'm in 4th grade!

A bag of M&Ms contains 12 red, 11 yellow, 5 green, 6 orange, 5 blue, and 16 brown candies. What is the probability that if you choose 2 M&Ms from the bag (one after the other) without looking, you will choose 2 yellow ones?

In one three day weekend, the daily high temperature had a median value of 73. The mean temperature was 74.33 and the range of temperatures was 14. What were the three weekend daily high temperatures?

If 229 g of Pb(NO3)2 and 190 mL of 1.68 M aqueous NaI are reacted stoichiometrically according to the balanced equation, how many grams of Pb(NO3)2 remain? Round your answer to 3 significant figures. Pb(NO3)2(aq) + 2NaI(aq) → PbI2(s) + 2NaNO3(aq)

You shoot an arrow into the air. Two seconds later (2.00 {\rm s}) the arrow has gone straight upward to a height of 32.0 m above its launch point. What is the initial velocity and how long did it take for the arrow to reach 16.0 m above the launch point?

Fairgoers ride a Ferris wheel with a radius of 5.00 {\rm m} . The wheel completes one revolution every 31.5 s What is the average speed of a rider on this Ferris wheel? If a rider accidentally drops a stuffed animal at the top of the wheel, where does it...

A 90 kg astronaut and a 1100 kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.24 m/s directly away from the shuttle. Seven-and-a-half seconds later the astronaut comes into contact with...

A bullet with a mass of 4.0 g and a speed of 650 m/s is fired at a block of wood with a mass of 9.7×10−2 kg. The block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the...

A 1.10 kg} block of wood sits at the edge of a table, 0.790 m above the floor. A 1.10×10−2 kg} bullet moving horizontally with a speed of 725 m/s embeds itself within the block. What horizontal distance does the block cover before hitting the ground?

Nitrogen gas is introduced into a large deflated plastic bag. No gas is allowed to escape, but as more and more nitrogen is added, the bag inflates to accommodate it. The pressure of the gas within the bag remains at 1 \rm atm and its temperature remains...

u divided by 7 =3

Block A and block B (see figure below) are forced together, compressing a spring (with spring constant k = 2220 N/m) between them 2 cm from its equilibrium length. The spring, which has negligible mass, is not fastened to either block and drops to the sur...

Only 0.02% of credit card holders of a company report the loss or theft of their credit cards each month. The company has 15,000 credit cards in the city of Memphis. Use the Poisson probability tables to answer the following questions. What is the probabi...

The Ka of stearic acid is 1.3 x 10^-5. what is the Kb of stearate?

The company offers two types of sales: 1. Internet sales; 2. Store sales. The marketing research manager believes that the Internet sales are more than 10% higher than store sales. The null hypothesis would be: A. Pinternet–Pstore >.10 B. Pinternet–Pstore...

The company offers two types of sales: 1. Internet sales; 2. Store sales. The marketing research manager believes that the Internet sales are more than 10% higher than store sales. The null hypothesis would be: A. Pinternet–Pstore >.10 B. Pinternet–Pstore...

Use this table to answer the questions. Height (in inches) Frequency 50-52 5 53-55 8 56-58 12 59-61 13 62-64 11 1. Identify the class width. 2. Identify the midpoint of the first class. 3. Identify the class boundaries of the first class. 4. Give the rela...

water 20 degrees celsius flows through a 25 mm diameter pipe at a rate of 50 liters per minute. is this laminar or turbulant flow or both?

Outside air generally contains some water vapor (typically 1-2% by mass). Does it take more, less, or the same heat to raise the temperature of 1kg moist air than is needed to raise the temperature of 1kg dry air by the same amount?

12(74y - (6+5Y - 8Z) = Please show work

12(74y - (6+5Y - 8Z) = Please show work

12(74y - (6+5Y - 8Z) = Please show work

Len flipped a coin 3 times and got a head each time. What are the chances he will get a tail on his next toss? Explain reasoning. would it be 50/50 because there are two sides

Choose the correct quantity to fill in the blank: Integral_______ dx = (ax2 - a2)4 + C.

Let f(3) = 0, f '(3) = 6, g(3) = 1, and g '(3) = 1/3. If h(x) = f(x)*g(x), find h '(3).

There are 6 batteries. Two are defective. If you pull out two batteries, what is the probability that neither are defective? Is this how you solve it? 4/6 X 3/5

A game is played using one die. There is a$1 charge to play the game. If the die is rolled and shows a five, the player receives $6 back ( a profit of $5 and the original $1). If any other number shows, theplayer loses the original $1. What is the player'...

does the sequence a=(2n)! / n! converge? Explain

A 95 kg rowboat is initially at rest, until it is pulled toward the dock with a rope with a tension of 30.0 N. The dock is higher than the boat, and the rope makes an angle of 25° at the place where it meets the boat. What is the acceleration of the boat?...

Marlene drive 540 miles to visit friend. drive for 3 hours then stopped for gas, then drive 4 more hours stopped for lunch. how many more hours do I drive if my average speed for trip is 60 miles per hour ? How would I write an equation?

An airplane descends 3.5 miles over a horizontal distance of 25 miles. How far did the plane actually travel?

In the truth table for an invalid argument

Just doing example questions to better understand. Find all first and second partial derivatives for the function u= xy^2+x^2y

Find the total differential for f(x,y,z)= cos(4x+3y+2z+1)

x^2-5/x lim x=0^+

the acceleration of a particle is defined by the equation a= 4-t^2 with an initial velocity of two millimeters per second. Find the exact equation for the position of the particle if its initial position was zero.

Please help: find the length of the curve 2y^2 = x^3 from the origin to x=10.

Create an application in C# that will accept sales information and calculate the total bill. There are 3 products which can be sold: Product 1 with price of $2.98 Product 2 with price of $4.50 Product 3 with price of $9.75 The application should prompt th...

Tony’s father, an accountant, has been listening to Tony tell him about Type I errors and α = .05. He responds: “.05? That means you’re making an error one time in twenty! If I made errors 5 percent of the time I’d be out of a job so fast it would make yo...

A 6 kg ball is thrown by a catapult at 30 m/s. what is the ball's momentum?

Find the sum of each infinite series, or state that the sum doesn'nt exist 1/7+5/14+25/28+

Did you enjoy the Southern hospitality? What are the adjectives in that sentence?

I need to find the slope of a ladder that is leaning against a building. The bottom of the ladder is 9 ft from the building and the top of the ladder is 16 ft above the ground.

Comment on the relative acidities of h3po4 and the h2po4 ion? I don't understand what this question is asking? Would H3PO4 is a strong acid and will completely dissociate into ions in aqueous solution suffice?

A company has total assets of $8,500,000 and its total turnover of 2.35 times. If the return on assets is 9 percent, what is its profit margin? Please help with a formula?

1.) What is the Magnitude of the electrostatic force on a +5 C charge 1.75 m to the left of a -2.5 C charge? (show your work) 2.) In What direction does the force on the +5 C charge act? 3.)Calculate the magnitude of the electric field of the -2.5 C charg...

A simply supported beam is 6 meters long and has a mass of 15 kg/m of length. It carries loads = 180 N and 270 N at points 1.2 meters and 3.6 meters from the left end respectively. Find the reactions.

200 g of ic is at -5C is dropped into a container containing water at 65C. If the final temperature of the mixture reaches 21C, what mass of water must be present in the container?

what is the magnitude of a vector with an initial point (2,6) and a terminal point (14,11)

Find the values of the six trigonometric functions of an angle in standard position where the terminal side is going through the point (-1, 1). Sinθ = Cosθ= Tanθ= Cscθ= Secθ= Cotθ=

A person sitting in a chair (combined mass 80kg) is attached to a 6m long cable. The person moves in a horizontal circle. The cables angle is 62 degrees below the horizontal. What is the persons speed? Note: the radius of the circle is not 6m. I really ju...

I don't completely understand what this question is asking: Three people are standing on a horizontally rotating platform in an amusement park. One person is almost at the edge, the second one is (3/5)R from the center, and the third is (1/2)R from the ce...

Write 5+7+9+11+13+15+17 in sigma notation.

I need a recap of how to do the question below. I just need the basic guidelines: The enthalpy change for the reaction 2H2(g)+O2 > 2H2O is -571.6kJ. Determine the enthalpy change for the decomposition of 24.0g H2O.

How did the status of slaves in African society contrast with the Americas? What rights and opportunities were available to slaves in African but limited or prohibited in the Americas ?

A trash company is designing an open-top, rectangular container that will have a volume of 135 ft^3.The cost of making the bottom of the container is $5 per square foot, and the cost of the sides is $4 per square foot. Find the dimensions of the conta...

Four times the sum of 9 and some number is 60. What is the number?

Identify the conjugate acid-base pairs in the following reactions. (a) NH4+(aq) + OH-(aq) <---> NH3(aq) + H2O(l)

The demand curve for a monopoly is: 1. the MR curve above the AVC curve. 2.above the MR curve. 3.the MR curve above the horizontal axis. 4. the entire MR curve.

Nina, Shanti and Belle run a 1000 m race at a constant speed. When Nina crossed the finish line first, she was 200 m ahead of Shanti and 400 m ahead of Belle. When Shanthi crossed the finish line, how far ahead of Belle was she?

Find f if f′(x)=2/x,x<0 and f(−1)=3.

Determine the impedance of a replacement three branch parallel circuit in which R=1.0k ohms, Xc= 500 ohms, Xl= 1.2k ohms

Find the impedance if the frequency is 1kHz for the parallel alarm system if R = 3.3kohms, C = 0.02 uF, L = 100mH Please assist thank you.

Finding the current flowing through the circuit and the voltages across each element for the strobe lighting system with a resistor at 3.3k ohms, capacitor 0.02 micro farud and 100mH inductor.

Describe the semiconductor behaviour of the p-n junctions for bipolar transistor or triac switching devices.

For this assessment, you will write a two-page narrative essay about an important event in your family history. You may write about an experience from your own past, or you may write about an event from another family member’s life. At least 9th grade lev...

On spring break in Puerto Vallarta you are feeling adventurous and decide to try ocean kayaking. You start from the beach directly in front of your hotel going 20 m/s due west, with an ocean current going 10 m/s due south. After 30 min where will you be i...

At 25oC and 0.986 atm pressure, what will be the volume of 0.75 mol of Kr? (hint: convert Celsius temperature to Kelvin first)

Determine whether each sequence is arithmetic or geometric. Find the next three terms 14,19,24,29,

-4,8,-16,32, What comes next?

-4,8,-16-32, What 3 numbers come next

Answers

The following answers were posted by visitors named Todd.

The epithelial tissue of an onion protects underlying tissue from mechanical injury, harmful chemicals, invading bacteria and from excessive loss of water.

Thank you - I spelled it wrong!

x=6 6( 3 + 6x)= 234 (3+ 6x)= 39 6x= 36 x=6

Yes it affects your life. However, that is pretty broad. 1. Confidence 2. Social ability

I am having trouble finding the answer to this same exact question. The word "legitimate" is what deters me from answering A without hesitation.

335 acres of corn 85 acres of pumpkins

x+x+3x+3x=44 8x=44 x=5.5 L=3x=16.5cm W=x=5.5cm

x+(x+250)=420 2x+250=420 x=85 85+250=335 Therefore, 335 acres of corn and 85 acres of pumpkins

Any fraction is undefined when the denominator is equal to zero. In this problem the denominator is 2x-6. In order to find what value of x is needed to make the denominator zero, set it equal to x and solve. 2x-6=o 2x=6 x=3 Therefore, this fraction is und...

multiply the term on the left with the term on the right. In this problem, 2*2 That will give you 4. Now you need to find two numbers that will multiply to 4, and also add to equal the middle number. In this problem the middle number is 5. So, we need two...

Correction* The middle number is -5 and so the factors will have - signs rather than + signs

That's correct.

9z+9=180 9z=171 z=171/9 z=19

2 2/5 hours is 132 minutes 132*3/8 is equal to 45 3/4 minutes

MAN WHY YOU THROWIN BALLS MAN I DON'T EVEN KNOW

y^2=1/2x^3 y=ã1/2x^3 y=1/1.41x^(3/2) derivative dy/dx=3/2.82^(1/2)

i got 24.81 would that be correct?

second part = B

right is 243N ?

forgot to convert so it will be 648.45N?

If I was given a question like this, I would just find the moles of the mass given and multiply it by the enthalpy change?

So would it be: 24/18=1.33 1.33(-571.6)=-761 kJ

What I am getting at is that the delta H given is for the product of the equation. Now, considering the number in front of it, you should divide the delta H by that number to get the delta H for one mol. From there you would multiply it by the mol of the...

I did round to fit the sig figs but wasn't sure if I was to add decimals or not

What is theme to The Wrong Place?

I haven't been able to come up with an equation to solve this but the answers say it's 9km/h

This is the exact question from my textbook. It is very confusing

I just checked the question and there is no typo. This is the exact question. Could you please help me

I had gotten -6 as an answer earlier but 2nd guessed it, thanks.

The question asks about the element magnesium reacting with oxygen gas, to form magnesium oxide. The solutions above show magnesium oxide reacting with oxygen gas to form magnesium oxide, which is incorrect. Mg(s) + 1/2 O2(g) ====> MgO(s) delta H = -602 k...

Question is not clear on orientation of the stand (e.g. 12 blocks in a row is different than 12 blocks in a column) Total = 10 different stands Length x Width x Height = 12 cu in 1 x 12 x 1 = 12 2 x 6 x 1 = 12 4 x 3 x 1 = 12 1 x 6 x 2 = 12 2 x 3 x 2 = 12...

Actually isn't it -32° F?