Answer:
A. a = -3 and b = 7.
B. x = -4 or x = 7.
Step-by-step explanation:
A)
f(0) = 0^2 + a(0) + b = 7
So b = 7.
f(-2) = (-2)^2- 2a + 7 = 17
4 - 2a = 17 - 7
4 - 2a = 10
-2a = 10 - 4 = 6
-2a = 6/-2
a = -3.
B)
Substituting a = -3 and b = 7 we get:-
x^2 - 3x + 7 = 35
x^2 - 3x - 28 = 0
(x - 7)(x + 4) = 0
x - 7 = 0 or x + 4 = 0
x = -4 or x = 7.
A right parenthesis ) is missing from this problem statement. I'm assuming that you meant
<span>3 1/2+( 2+4 1/2).
There are at least two ways in which you could do this problem. One would be to simply drop the parentheses entirely:
</span><span>3 1/2+ 2+4 1/2 It'd make sense to add 3 1/2 and 4 1/2 together FIRST, and then to add 2 to the result.
Or, do the work inside the parentheses FIRST: </span><span>3 1/2+( 2+4 1/2).
</span>
This simplifies the problem to <span>3 1/2+( 6 1/2).
You MUST get the same answer either way.</span>
Answer:
5.5
Step-by-step explanation:
3x+5=5x-6
5= 2x-6
11=2x
5.5=x
Multiple parts of this bloodline is that you get the jeans from the parents