Homework Help: AlgebraB-2

Posted by Jennifer W. on Tuesday, March 19, 2013 at 6:15pm.

1. What is the value of n so that the expression x² + 12x + n is a perfect square trinomial? (1 point)6
36
72
144

2. What are the solutions of the equation x2 + 4x = 96? (1 point) 2, –48
–12, 8
–2, 48
12, –8

3. What are the solutions of the equation x2 + 14x = –130? (1 point)2, –16
10, –13
–2, 16
no solution

4. A rocket is launched from atop a 105-foot cliff with an initial velocity of 156 ft/s. The height of the rocket above the ground at time t is given by h = –16t2 + 156t + 105. When will the rocket hit the ground after it is launched? Round to the nearest tenth of a second. (1 point)4.9 s
9.8 s
0.6 s
10.4 s

No one has answered this question yet.

Answer this Question

Related Questions

Math check - Complete the square: x^2 -12x. Which of the following is the ...
Algebra - What is the value of n so that the expression x² + 11x + n is a ...
Algebra 2 - Find the value of c that makes the expression a perfect square ...
Algebra 2 - Replace each of the question marks with a value that will make the ...
algebra - FIND THE VALUE OF K, SO THAT THE EXPRESSION IS A PERFECT SQUARE ...
Algebra 1 - m(squared)-8m+n Find the value on n such that each expression is a ...
alg3 - how do i factor the perfect square trinomial 9x2-12x+4
trinomial - I need this answer. Which trinomial is a perfect square trinomial? A...
math,help - Is this trinomial a perfect square x^2-6x+9 if the trinomial starts ...
math 118 - x^2+10x Add the proper constant to the binomial so tha tthe resulting...

For Further Reading

First Name:
School Subject:
Answer: