Answer:
Step-by-step explanation:
Given
See attachment for triangle
Required
Solve for s
From the triangle, we have:
similar to
Such that
This implies that:
Substitute: and
Collect like terms
Divide by -1
Answer:
You can use Desmos to graph any equation:
F(x) = 10 - 4x
You must know that f(x) is technically "y" (the right side of the ( not this place ,this place ) )
A) (2, -18)
f(x) = 10 - 4x
-18 = 10 - 4(2)
WRONG!!
B) (18, -2)
f(x) = 10 - 4x
-2 = 10 - 4(18)
WRONG!!
C) (-2, 18)
f(x) = 10 - 4x
18 = 10 - 4(-2)
18 = 10 + 8 (two negatives numbers multiplied together=positive number)
18 = 18
Correct!
your answer is <span>C
hope this helps :D
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Answer:
x=2
Step-by-step explanation:
5 ( x - 2) + 4 ( 3 + x) = 20
Distribute
5x -10 +12 +4x = 20
Combine like terms
9x +2 = 20
Subtract 2 from each side
9x+2-2 = 20-2
9x = 18
Divide each side by 9
9x/9 = 18/9
x = 2