Answer: A) 3.2 ft
<u>Step-by-step explanation:</u>
f(4) = -0.3(4)² + 2(4)
= -4.8 + 8
= 3.2
Pythagoras' Theorem only works with right angle triangles.
A makes a right angles triangle because:
√3² + 4² = 5
However B doesn't because:
√7² + 8² = 10.631 (which is not 9)
Nor does C because:
√3² + 9² = √90 (which is not √95)
So the answer is A
Answer:
8
Step-by-step explanation:
Kari has 2 choices for jackets and 4 choices for jumpsuits. We'll multiply those together to find the number of options she has.
Since the numbers are very small, we can grind out this same number (but be organized):
Jean/white
Jean/tan
Jean/green
Jean/black
Leather/white
Leather/tan
Leather/green
Leather/black
These are the eight choices.
The answer is x= 4 and y= -3
6x-4y=36 -- (1)
2x-8y=32- (2)
from (1)
-4y= 36-6x
y= -9+3/2x
(3) into (2)
2x-8(-9+3/2x)=32
2x+72-12x=32
72-10x=32
-10x= -40
x= 4
sub x=4 into y= -9+3/2x
y= -9+3/2(4)
y= -3
