Answer:
1 is 9 sq units
2 is 12
3 is 24cm^2
Step-by-step explanation:
G=gas
w=bottle of water
8g + 2w = 29
12g + 4w = 45
I'm going to use elimination to cancel out the variable w by multiplying the first equation by -2.
-16g - 4w = -58
12g + 4w = 45
-4g = -13
/-4 /-4
g = 3.25
Now plug it into an equation, any equation.
8 (3.25) + 2w = 29
26 +2w=29
w=1.5
Now to check, plug it into both equations if you want.
12 (3.25) + 4 (1.5)=45
39 + 6=45
One bottle of water is $1.50, while one gallon of gas is $3.25.
Answers (in order):
<u>I used the Pythagorean Theorem to solve each one:</u>
d ≈ 8.0622
l ≈ 6.7082
Hope this helps! :)
Answer: Choice C
exact length = sqrt(26) units
approximate length = 5.10 units
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Work Shown:
We can use the distance formula.
A = (x1,y1) = (2,2)
B = (x2,y2) = (1,-3)
The distance from A to B is exactly sqrt(26) units which approximates to 5.10 units. This distance represents the length of chord AB.
Answer:
Step-by-step explanation:
Latin American Art: x
African American Art: x+18
European Art: x-15
x+x+18+x-15=78
3x+3=78
3x=75
x=25
Latin American Art: 25
African American Art: 43
European Art: 10
