Answer:
138
Step-by-step explanation:
152+125=277
277-135=142
around 138
Answer:
63
Step-by-step explanation:
score 75 is one standard dev below the mean ====>to the mean encompasses approx 34% of scores
.34 * 186 = 63
Answer: f(-6) =
, f(-4) =
, f(4) =
, f(6) = 
<u>Step-by-step explanation:</u>
(-6, f(-6)) is an x,y coordinate. They are asking what the y-value is when you plug in -6 for x.
f(x) = 
f(-6) = 
= 
= 
f(-4) = 
= 
= 
= 
f(4) = 
= 
= 
= 
f(6) = 
= 
= 
4x^2 + 2x = -9
4x^2 + 2x + 9 = 0
remember that the form of quadratic is ax^2 + bx + c = 0
so
a = 4
b = 2
c = 9
Hello, please consider the following.

For the second we will need to put on the same denominator.

Thank you.