Solving for Centripetal Force using a Free Body Diagram

A 70 kg student is riding a roller coaster and is at the top of the vertical loop. The loop has a radius of 16 m, and the car's velocity at the top is 12 m/s. What is the student's apparent weight... more

a dump truck can haul 16 loads of trash in 4 hours?

how many hours does it take to haul 25 loads of trash?

(x+7)(x-3)=-7

solve it by quadratic equation standard form

03/03/16

Show work please

Sarah and genesis are making bracelets. It takes 2 hours to make a small bracelet and 3 hours to make a large bracelet . they have 24 hours to make 10 bracelets. A small.bracelet costs 8$ and a... more

03/02/16

laura used 1/4 gallons of gas on friday and 5 7/8 on saturday. how many more gallons of gas did she use on saturday?

aura used 1/4 gallons of gas on friday and 5 7/8 on saturday. how many more gallons of gas did she use on saturday?

The Megabus was driving on 101 having a constant deceleration of 18 ft/second-squared. Its skid marks measured 190 feet before coming to a complete stop.

The Megabus was driving on 101 when it suddenly braked, having a constant deceleration of 18 ft/second-squared. It produced skid marks that measured 190 feet before coming to a complete stop. How... more

PRECALC HELP!!? Quadratic word problem!!Determining the width of a lawn?? I AM STUCK!

A factory is to be built on a lot measuring 300 ft by 400 ft. A local building code specifies that a lawn of uniform width and equal in area to the factory must surround the factory.What must the... more

03/02/16

How do I solve equations containing fractions ?

x/x+2  -   x/x-2=  x+20/x^2-4  

03/02/16

What are the numbers?

The sum of two numbers is 56. The second number is 4 less than 3 times the first number.

03/02/16

What are the numbers?

The sum of two numbers is 56. The second number is 4 less than 3 times the first number.

03/02/16

will it be enough to pay for 1st year of college?

Tara plans to attend a 2 year university that costs a total of $11,500 per year. her family invests $2500 in an account that earns 3% annual interest, if they invest an additional $150 per month... more

03/02/16

Twice the smallest of three consecutive even integers is 6 more than the largest one. Find them.

Hi, need some guidance with the question : Twice the smallest of three consecutive even integers is 6 more than the largest one. Find them. 

Suppose that a 4-digit pin number is to be formed with the digits in {0, 1, ,2 ,3 ,4 ,5, 6, 7, 8, 9}. What is the probability that the pin number contains at le

Suppose that a 4-digit pin number is to be formed with the digits in {0, 1, ,2 ,3 ,4 ,5, 6, 7, 8, 9}. What is the probability that the pin number contains at least 3 odd digits?

factor the polynomial

2x2-x-6

Nancy and Kerri have the same amount of coins. Nancy has only dimes and Kerri has only quarters.

if Kerri has $3.00 more than Nancy, how many coins does each girl have?

Write the expression below in the form x^n, assuming x?0, and give the value of n. (x^8/x^2)^4 n=

Write the expression below in the form x^n, assuming x≠0, and give the value of n.(x^8/x^2)^4 n=

Write the expression below with a single exponent. ((a+b)^3)^5=

Write the expression below with a single exponent.((a+b)^3)^5=

Half life chemistry question ?

Iodine 131 has a half life of 8 days and it decays emitting one of beta rays per mol of iodine 131. If you inject 0.001 moles of iodine 131 into someone , and monitor them for 8 days , how many... more

could someone help assist me?

The length of a rectangle is 2 inches more than the width. The area is 35 square inches. Find the dimensions.The length of the rectangle is _______ inches, while the width is, _______ inche

03/02/16

I don't understand this math problem?

The product of two consecutive even integers is 66 less than 9 times their sum. Find the two integers. Answer in the form of paired points with the lowest of the two integers first.   (_______ ,... more

non routine problem

A woman, her brother, her son, and her daughter (all relatives by birth) are tennis players. The worst player's twin (who is one of the four players) and the best player are of the opposite sex.... more

03/02/16

IF A CAR TRAVELS 300. METERS WEST IN 12.0 SECONDS WHAT IS THE AVERAGE SPEED OF THE CAR?

IF A CAR TRAVELS 300. METERS WEST IN 12.0 SECONDS WHAT IS THE AVERAGE SPEED OF THE CAR?

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