Answer:
12 in
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = 
h(b₁ + b₂ )
where h is the height and b₁, b₂ the parallel bases
Given h = 6, b₁ = 8 and A = 60 , then
× 6 × (8 + b₂ ) = 60 , that is
3(8 + b₂ ) = 60 ( divide both sides by 3 )
8 + b₂ = 20 ( subtract 8 from both sides )
b₂ = 12
The length of the second base is 12 inches
Answer: Multiplied by -1
Example:
Let's say we had the linear function y = 2x+5
Reflecting this over the y axis means we replace every x with -x and simplify
y = 2x+5 becomes y = 2(-x)+5 and that simplifies to y = -2x+5
The y intercept stays the same the whole time. This is because the y intercept is on the mirror line of the y axis. Stuff on the mirror line does not move.
Notice the jump from the old slope (2) to the new slope (-2) has us multiply by -1.
19. 5.50-1.25=4.25
21. y = -9
Answer:
The answer is a
Step-by-step explanation:
Its a because 13 times 3 is 39
13 times 4 is 52
and 13 times 5 is 65
