Explore BrainMass
Share

Algebra Questions

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

1.The formula r=2sqrt(5L) can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length L, in feet. How far will a car skid at 30mph?

2.What does it mean to refer to a 20 inch TV set or a 25 inch TV set? Such units refer to the diagonal of the screen. A 25 inch TV set also has a width of 20 inches. What is its height?

3. Give the formula to determine the sides of a right triangle.

© BrainMass Inc. brainmass.com October 25, 2018, 4:18 am ad1c9bdddf
https://brainmass.com/math/basic-algebra/algebra-questions-373678

Solution Preview

Hi,

1. The answer is:
30 = 2*sqrt(5T)
15 = sqrt(5T)
15^2 = 5T
225 = 5T
T = 45ft

2. The screen size ...

Solution Summary

This posting contains the solution to the given problems.

$2.19
See Also This Related BrainMass Solution

I need help answering all these questions for MTH/ 209. Also please show your work and clearly identify the answer.

Question #1/25

Simplify SQRT (125/45)

Be sure to write your answer in lowest terms.

Question #2/25
Rewrite the following in simplified radical form.
SQRT (54)

Question #3/25
Rewrite the following in simplified radical form.

SQRT (75x^6)

Assume that all variables represent positive real numbers.

Question #4/25
Write the following expression in simplified radical form.

SQRT (54y^5z^6)
Assume that all variables represent positive real numbers.

Question #5/25
Simplify the following expression as much as possible:

Please see the attachment

Assume that all variables represent positive real numbers.

Question #6/25
Simplify.

Please see the attachment

Assume that all variables represent positive real numbers.
Question #7/25
Multiply.

Please see the attachment

Simplify your answer as much as possible.

Question #8/25
Rationalize the denominator and simplify.

Please see the attachment

Question #9/25
Write in simplified radical form by rationalizing the denominator.

Please see the attachment

Question #10/25
Solve for u, where u is a real number.

Please see the attachment

(If there is more than one solution, separate them with commas.)

Question #11/25
Solve for z, where z is a real number.

Please see the attachment

(If there is more than one solution, separate them with commas.)

Question #12/25
Solve for t, where t is a real number.

Please see the attachment

(If there is more than one solution, separate them with commas.)

Question #14/25
Simplify.

Please see the attachment

Question #15/25
Compute the following:

Please see the attachment .

Question #16/25
Write the following in simplified radical form.

Please see the attachment

Question #17/25
Write the following expression in simplified radical form.

Please see the attachment

Assume that all of the variables in the expression represent positive real numbers.

Question #18/25
Find the roots of the quadratic equation:

Please see the attachment
.
(If there is more than one root, separate them with commas.)

Question #19/25
Solve:

Please see the attachment
.
(If there is more than one solution, separate them with commas.)

Question #20/25
Solve the equation for z.

Please see the attachment

(If there is more than one solution, separate them with commas.)

Question #21/25
Solve , where x is a real number.

Please see the attachment

Simplify your answer as much as possible.
If there is more than one solution, separate them with commas.

Question #22/25
Solve , where y is a real number.

Please see the attachment

Simplify your answer as much as possible.
If there is more than one solution, separate them with commas.

Question #23/25
Compute the value of the discriminant and give the number of real solutions to the quadratic equation.

Please see the attachment

Discriminant ?
Number of real solution ?

Question #24/25
Use the quadratic formula to solve for x.

(If there is more than one solution, separate them with commas.)

Question #25/25
When a ball is thrown, its height in feet h after t seconds is given by the equation h = vt - 16t^2
,
where v is the initial upwards velocity in feet per second. If v = 35 feet per second, find all values of t for which h = 18 feet. Do not round any intermediate steps. Round your answer to 2 decimal places.
(If there is more than one answer, enter additional answers with the button that says "or".)

Please see the attachment for picture.

Please view attachment. Thanks

View Full Posting Details