Answer:
12√5
Step-by-step explanation:
According to the attached sketch, there are 2 triangles which we need to focus on, triangle A (in yellow) and triangle B (In red).
If you look at triangle A, we notice that X is the hypotenuse of triangle A. This means that X must be the largest length in triangle A, hence we can say that x must be greater than 24 (or 24 < x)
Now look at triangle B, in this case, they hypotenuse is 30 and x is the length of one of the sides. This means that x must be shorter than the hypotenuse (i.e x < 30)
from the 2 paragraphs above, we can see now that we can assemble an inequality in x
24 < x < 30
If we look at the choices, we can immediately ignore 33 because x must be less than 30,
working out the choices, we find that the only choice which falls into the range 24<x<30 is the 2nd choice 12√5 (= 26.83) (which is the answer)
The last 2 choices give values smaller than 24 and are hence cannot be the answer
Which statement best compares the maximum value of the two functions?
A. It is equal for both functions
B. It is 3 units higher for f(x) than g(x)
C. It is 3 units lower for f(x) than g(x)
D. It is 1 unit higher for f(x) than g(x)
Solution : D. It is 1 unit higher for f(x) than g(x)
Given:
f(x) = −5x^2 + 9
g(x) is 0 0 1 4 2 8 3 4 4 0
We make a table for f(x) as well. We use same x vales given in g(x)
We plug in x values and find f(x)
x -----> g(x) ----> f(x)
0 -----> 0 ---->9
1 -----> 4 ----> 4
2 -----> 8 ---->-11
3 -----> 4 ---->-36
4 -----> 0 ----> -71
From the table we can see that maximum value of g(x) is 8 and maximum value of f(x) is 9 that is 1 unit higher for f(x) than g(x)
Answer is option D.
Two times four
Eight divide in half
Eight
Six times four
Twenty four
Eight plus twenty four
Thirty two
When you have a triangle just multiply the sides then divide that total by half that will be the area for that