Lina

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

Questions

The following questions were asked by visitors named Lina.

A steel beam is used in the construction of a skyscraper. By what fraction (change in L)/(Lo) does the length of the beam increase when the temperature changes from that on a cold winter day (-15 F) to that on a summer day (+105 F)? Can anyone please give...

Which equation has the complex number 4-3i as a root? 1) x^2+6x-25=0 2) x^2-6x+25=0 3) x^2+8x-25=0 4) x^2-8x+25=0 Can anyone please teach me how to do it?THANKS A LOT!!!

What would be considered as a competitive interest rate and was is a compeititve interest rate?

For the reading section is the format part 1 vocab 2 short passages 1 long part3 vocab 2 short passages 2 short or is it the other way around

city law enforcement has state that 20% of items sold by paywn within city stolen john purchase 4 items from city pawn shop for x=the number of john purchase that have been stolen how I can determine:a P(x=0, b P(2<=x), cP(1-<x-<3) and d P(x-<2).. Try

For the manufacturing plant discussed in Exercise 8.10, the union president and the human resources director jointly select a simple random sample of 36 employees to engage in a discussion with regard to the company’s work rules and overtime policies. Wha...

If a sample of size 30 is selected, the value of A for the probability P(t greater or less A) = 0.01 is?

Please, give the formula and steps to do this problem. Thank you The average length of a flight by regional airlines in the United States has been reported as 299 miles. If a simple random sample of 30 flights by regional airlines If The average length of...

Please only the formula and steps to do this problem. Thank you An assembly process includes a torque wrench device that automatically tightens compressor housing bolts; the device has a known process standard deviation of ó = 3 lb-ft in the torque applie...

For constant acceleration, how does the average velocity for an interval compare with the instantaneous velocity at half-time in the interval?

Calculate the pH change of 10mL of HCl added to 1M phosphate buffer in 1L with initil pH of 7.2?

I forgot my book in my desk and have homework over the weekend!! HELP ME!

Question: What time period or movement began in the textile industry? I am really confused about this questions. My answer was the time period of the 18th century. Is this correct? Question: What is an economic system based on machinery rather than animal...

How many 2 inch squares can be placed completly on a rectangular board that is 12 inchea wide and 16 inches long?

Tim ate some chocolate cake for an afternoon snack He left 3/4 of the cake. If his parents ate 1/3 of the remaining cake for dinner, write a multplication problem to represent how much cake tims parentd ate

HI! I need help with detremining how long my essay should be. It has to be from 4-5 minutes long. Thanks!

Hi! For a research project from my science class I'm having trouble trying to find an answer to the following problem. How does the Man-o-War care for their young? Thanks!

I only have one way that the Man-o-War defends them self, their stingers. I need one more way. But my search engine only provides that way. :( Also when the Man-o-war gives birth this happens asexually. but i also need to answer the question how do the ma...

Hi I need help with my math problem. It is: Name the function rule from the table given. Table- X= Y= -4 4 -2 2 0 0 answers: y = -x y = -4 y = 2x y = x I do not get how to solve this problem!

For my quiz some of these questions confuse me. Your genome is over 99% identical to every other human on earth. True False 3 points Save All living things on earth share certain identical sequences of bases on their genome. True False and... Question 8 3...

Can a secondary consumer be eaten by another secondary consumer? Thanks! :-)

I need help figuring out this on a food web. It goes from a flower to a butterfly to a frog to the bird to a coyote. Now I have to label them. I got them all however i do not know what the frog and bird is. HELP!! :-)

Where was the site for the Battle of Gettysburg in the Civil War? Thanks!

Where was the site of the Battle of Fort Sumter in the Civil War? Thanks!

(Penn Foster) 1- Neueon development and elaboration, which occurs between birth and age 10, is prompted by: A -aural prompts from the famiy school and environment. B-physical movement on the part of the child C- Intake of foods rich in vitamins and minera...

Health, Safety, and Nutrition 1. Today in class you’re going to talk to your students about Vitamin C and what it does for a person’s body. From which one of the following food groups should you select your snack for today? A. Bread, cereal, rice, and pas...

A gas is confined to a container with a massless piston at the top. (Part C figure) A massless wire is attached to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 4.90 to 2.45 L. When the external pressure...

Hey What size down pipe would I need, and how many if my roof area equals 1224.78 metres squared and I have average rainfall of 173kl per year? Also how much plumbing would I need from my hypothetical tanks?

How will the equilibrium: Heat energy + CH4 + 2H2S = CS2 + 4H2 be affected by the following? a) A decrease in temperature? b) The addition of H2 c) The removal of some CH4 d) An increase in the volume of the container e) The addiotion of a catalyst. i kno...

A lift is pulled up to the top of a building by a constant force of 6400N at a constant speed of 2m/s. It takes 3mins to reach the top. (a) how much work is done in raising the lift to the top of the building ? (b) what is the power required ?

The mass of an astronaut is 72kg. (a) what is his weight on earth ( taking g to be 10N/kg) ? (b) if the astronaut is on the moon's surface where the acceleration due to gravity is one-sixth on the earth , calculate (I) the mass (ii) the weight of the astr...

Arrange the members of the following set of cations in order of increasing ionic radii: Sr2+ Ba2+ Rb+ K+ I understand that Sr2+ = 132 pm Ba2+ = 149 pm Rb+ = 166 pm K+ = 152 pm increasing ionic radii ....Sr2+ , Ba2+ , K+, Rb+ But the its not going in onlin...

Kinetic energy = 1/2 mv^2 where m is the mass of the particle and v is the velocity of the particle. A joule is the SI unit for energy and is kg.m^2/s^2. Find the energy in joules of a 56.7 g mass moving at the speed of 70. km. hr.

A total revenue function is given by R(x) = 1000(x^2 - 0.1x)^1/2 , where R(x) is the total revenue, in thousands of dollars, from the sale of x items. Find the rate at which total revenue is changing when 20 items have been sold.

the molar mass of NaOH is 40g/mol, how many grams ofNaOH are required to yield 0.65 mol?

A particle P travels with constant speed in a circle of radius 7.3 m and completes one revolution in 34.0 s (see Figure). The particle passes through O at t = 0 s. What is the magnitude of the average velocity during the interval from t = 11.9 s and t = 1...

A mass M = 40.0 kg is suspended by a massless string from the ceiling of a van which is moving with constant acceleration a, as shown in the figure. If the string makes an angle theta = 21° with respect to the vertical, what is the acceleration a of the v...

2-Eric and Frank want to equally share 4/3 feet of rope. what length of rope should each friend get? Explain how to use a drawing to help solve the problem.

Explain how you would convert a measurement given in ounces into pints

What are the magnitudes of (a) the angular velocity, (b) the radial acceleration, and (c) the tangential acceleration of a spaceship taking a circular turn of radius 3220 km at a speed of 29000 km/h?

perimeter = 24 feet triangle that have one side is b =? second side is b =? third side is b - 3 =? How to solve this problem?

A passenger boat which travels 6 mph faster than a freighter required 3 days less time to make a trip of 2592 miles. Find the rate of the passenger boat.

For the first of two basketball games the price of each reserved seat was $1.50,the price of each unreserved seat was 5 cents, and the number of reserved seats sold was 1/25 of the number of unreserved seats sold.If, at a second game, the price of the res...

A confectioner perchased several boxes of candy for $6. He gave five boxes to his children, and sold the rest at 10 cents more per box than he had paid for them, and made a profit of 25% on his original cost. How much did a box of candy cost him?

A monument consists of two cubical blocks of granite, the smaller resting on the larger. The total height of the monument is 5 feet, and the area of the exposed surface is 61 square feet. Find the dimensions of the blocks. Help please>.< Thank you in adva...

There are three pipes in which a cistern can be filled. The second takes 5 hours longer than the first, the third three times as long as the first. If all are open the cistern can be filled in 2 and 1/4 hours. How long would it take each alone to fill the...

1/x+1/x+5+1/3x=1/2.25 Solve for x.

The length and width of a rectangle are to each other as 4 is to 3. A second rectangle are 4 units longer and 2 units wider than the first one, and has twice as great an area as the first. Find the dimensions of the first rectangle.

A carpenter has a board that is 10 feet long. He wants to make 6 table legs that are all the same length. What is the longest each leg can be? Thanks

1. In the xy-coordinate plane, point A is the midpoint of the segment with endpoints (2,4) and (-4,-4). What is the distance from point A to the origin? I know how to find the distance between the two points- 10. But I don't know where to go from there. 2...

How did the building of the transcontinental railway benefit the country? I know that First Nations were kicked off their farmland to make way for the building of the railway and for settlers(why would settlers need the land?). Why was the railway so impo...

14 2 7 3 9=10 insert symbols to make it work 9*2 11 8 4 1=60

The Eatery Restaurant has 200 tables. On a recent evening, there were reservations for 1/10 of the tables. How many tables were reserved?

The general equation for depreciation is given by y = A(1 – r)t, where y = current value, A = original cost, r = rate of depreciation, and t = time, in years. A car was purchased 6 years ago for $25,000. If the annual depreciation rate is 11%, which equat...

An equation for the depreciation of a car is given by y = A(1 – r)t , where y = current value of the car, A = original cost, r = rate of depreciation, and t = time, in years. The value of a car is half what it originally cost. The rate of depreciation is...

A type of plant is introduced into an ecosystem and quickly begins to take over. A scientist counts the number of plants after m months and develops the equation p(m)=19.3(1.089) raised to m, to model the situation. Most recently, the scientist counted 13...

A sport arena covers 710,430 square feet of ground. A newspaper reported that the arena covets about 700,000 square feet of ground. To what place value was the number rounded?

|a|-3/4=-5/8 a. 1/8 or -1/8 b. 7/8 or -7/8 c. 1 3/8 or -1 3/8 d. No solution could someone walk me through perhaps? I missed a ton of class.....So did Fae.

Uh...Yea... Sorry about this, but I"m trying to study and I need someone to walk me through, missed a lot of school. fyi, when there's a / its under the entire string before it until you hit the inequality symbol. Tony Bowled 135 and 145 in his first two...

The graph at the right is a positive vs. Time graph for the motion of an object moving along a horizontal (x) axis For each of the 8 1-second time intervals, describe the displacement, instantaneous velocity (+/- and whether the velocity is increasing or...

I'm confused on how to set up the problem for each question.. 1.) Calculate the empirical formula of a compound if a 6.21 g sample contains 1.67g of cerium and the remainder iodine 2.) An unknown compound contains 85.64% carbon with the remainder hydrogen...

What does it mean to get a 150% salary raise?

I have $0.39. There is 1 more penny than nickel, and one more nickel than dimes. The coins are?

-2, -12, -72, -432 find the 8th term 0.2, 1.6, 12.8, 102.4 find the 6th term 24, 12, 6, 3 find the 7th term

What are some of the reasons for income differences?

How much more does someone with a bachlors degree usually earn than someone with a high school deploma?

Calculate the thermal energy required to convert 5kg of ice at 0 Celsius to steam at 100 Celsius

write a function that is shifted 2 units up from the function f(x)=|x|+3 Write a function that is shifted 4 units down from the function f(x)=|x-3|+1

Ryan bought 2 1/4 pounds of almonds and divided them into bags with 1/8 pound in each bag.

Oliver has one juice box. Lucy has one fewer juice box than oliver. How many juice boxes does lucy have?

In Heather's class room there are red chairs,yellow chairs, and blue chairs. There are 3 red chairs. There are 4 times as many yellow chairs as red chairs, and there are 3 fewer blue chairs than yellow chairs. How many chairs are there in Heather's classr...

If 2 gulps = 5 slurps, and 2 slurps = 7 sips, then 35 sips is equal to how many gulps?

Which region of this map was ceded by France to the United States? North Northeast *** South and southeast West The picture shows West Florida in the middle, the Gulf of Mexico below it, part of some other states near the sides and top.

Now sure how to do this! 1. DESCRIBE & CALCULATE how to make 750. mL of a 1.25 M sucrose solution 2. Concentrated HCl has a molarity of 12 M. DESCRIBE & CALCULATE how to make 1.50 L of a 3.00 M HCl.

2. Suppose a chemistry student made 2000. mL of 6.00 M HCl. He accidently spilled half of this solution on the floor. What is the Molarity of HCL left in the beaker? Explain the answer... - for this problem, would I use the eq'N, M1V1=M2V2. 3. What is the...

Jon's test grades are 76,84,83 and 78.What does he need to make on his next test to have an 83 average?

Marty had 316 keys and Nick had 541 keys. After both of them lost the same number of keys, Nick had 6 times as many keys as Marty. How many keys did each of them lose?

I need help can someone help with the answers to check my work pls pls pls if I don’t get 100 I’m gonna fail pls help me pls pls pls pls it urgent

Write a numerical expression for the phrase. Then simplify it. The sum of - 1 and 9 and 5 What is the numerical expression for this phrase?

Drawn the triangle

Why does aqueous ch3nh2 turn litmus paper blue

Why did many people support the Vietnam War in its beginning stages

Answers

The following answers were posted by visitors named Lina.

but i got .00144 for the answer... the correct answer should be 8.0*10^-4 how come?

y the factors are (x-4+3i) and (x-4-3i) ???Can you explain please?

The answer is 3 (choice E). If 3n-4=n+2... you need to breakdown the equation. Add 4 to both sides. So that leaves you with 3n=n+6. Subtract 1n from both sides. So that leaves you with 2n=6. Divide both sides by 2... therefore n=3.

For the manufacturing plant discussed in Exercise 8.10, the union president and the human resources director jointly select a simple random sample of 36 employees to engage in a discussion with regard to the company’s work rules and overtime policies. Wha...

how you can use sampling distribution and the concept of Central Limit Theorem to apply information and make good predictions and estimations when you shop for a particular item or product?

females males 26 33 35 40 75 50 63 32 36 28 71 39 54 32 68 33 37 31 48 36 42 26 43 37 73 38 55 21 47 39 71 48 27 38 56 36 37 59 25 59 88 53 42 59 33 35 66 38 45 24 53 28 46 45 74 28 58 23 51 15 58 61 48 31 48 17 42 55 55 31 50 55 61 37 28 36 41 20 58 48

Sorry, can't help! Would if i could, really!

choices- A. Peers B. family C. elementary school teachers D. Child care providers

Wow that helped a lot! Thanks, can I ask you another question if you do not mind?

thanks i finshed that really helped a lot. :)

thanks everybody you helped me a whole lot! :)

Also please do NOT tell me the answer but show me how to solve it. Thanks everybody!

*please post your question some other place where it can be properly answered and so can mine. Thank you.*

No because they eat primary consumers. Thanks!

Wikipedia is not a reliable source. Please do not enter wikipedia.

my teachers say not to go there. :(

i already did go to google. there is nothing. I searched and searched.

However, thank you for answering my questions. Have a good day! :-)

Have a nice Day.

WOW maybe you shouldnt be taking this course. Those questions are the easiet questions. Good Luck!

How dare you direct me to that web site for cheating!!!!!!!!!

Speed of gravity: 9.8meters/second Given 0.02 seconds, you can use conversion method. 9.8m/s*0.02seconds=0.196meters

This is a system of equations. x-y=8 x+y=-2 The easiest way to solve would be the elimination method because it is already set up; if you add the equations, the y cancels out and gives you: 2x=6 Further, x=3 Given x you can find y in any equation above; x...

If the question is what is the product of (8x^5-5x)(7x^3) you can find this by using the FOIL method. i.e-(8x^5)(7x^3)-(5x)(7x^3)= 56x^5+3-35x1+3= 56x^8-35x^4

Well, you could multiply everything by 100 to get an easier function: y=-3x^2+14x+143 in which you could try and use the quadratic theorem [-b +/- sqrt(b^2-4ac)]/2a Giving you: -14 +/- sqrt(196-(-1716)/-60 [-14 +/- sqrt(1912) ]/-6 You cant simplify too mu...

Anonymous is right. m is the slope of the line and b is the y intercept. So the graph will have a negative slope of (rise/run) -2/3 and it will cross the axis at y=45

Opportunity cost is represented by what you're losing by choosing one option. For example, by going to the movies your opportunity cost is doing your homework. Therefore, the opportunity cost of producing potatoes is 50 chickens. The opportunity cost of p...

Thanks. Talked to my Dad. Told me to assume that the down pipes had a width of 200mm as this is for a school auditoriam. @ drwls. Yes, the roof area has already been taken into account @ bobpursley. how would i design for max rainfall? The school is in th...

i need the answers too!

The correct answer is 1.8 mL

Thank you so much!

How would you check it?

can you provide a check for the answers?

OMG thank you so much for the thoroughness

How do you find the "average of the ends"? What does that mean and how do you get -1?

Ok thank you! I just finished my essay, but I will take a look and maybe add some on to what I have now. I would post it here for you to proofread, but I don't wish to publish my work online.

Homework due by 12am midnight! Please help asap. Not sure how to explain or describe velocity or acceleration. Its confusing. Hope with help, there will be a clear understanding.

CHECK MY WORK ___ v a 1s 00 00 2s 17 10 v=(60-43) a =(v3-0)=10 3s 10 -17 4s 00 -2 5s -2 (2m-66) 6s (2m-68) -58 7s (10-2m) (2m -10) 8s 00 (10-2m) I got lost with the numbers. Could you please explain in words.. I am still lost. Hopefully I get a reply befo...

Would be a major Extreme Help. any explanations and descriptions will do for each interval. 2 hours looking at this question

arent we all here for Ashworth lol 2016 Baby

If you might, please answer this quickly. I haven't much time to finish this test. Thanks!

Is 1 or part A's answer then 321 and question 2's answer is 375...??

2. I still don't get this or is it the same equation. 3. Answer: 0.254 M KOH 5. Am I still using the equation?

Is #5's answer: 1.0 M H2SO4? what about #2?

Dis is soooooooooooooo easy you dumbys so you first just have to add 1km to 10 after that you dibide numbers. the numbers are 11 dibide by 1.5 I am sssssooooo smart i will get write.see yooo later suchers dumbys😛😛😛😛😛😛 For ill you are dumbys

Is the answer D?

Where’s the answer? I honestly was expecting an answer if there’s no answer then why’d you even make the question?🤨

so nobody knows? i thought it was b

omg we have the same name. i also need help

He had a vision of a more agrarian society.***

I think it is 42.

Give recent (2019-2021) examples of how this problem has displayed itself in community