Answer:
it is c
Step-by-step explanation:
Your answer is 160
2 times Negative 8 plus 5 times Negative 2 is 160 cause the negatives cancel out
Answer:
446.75 y^2
Step-by-step explanation:
First, Kelly found the area of a circle, not half a circle, which is on top of the figure. She also shouldn't have subtracted the area of the circle by the airea of the base, as she is trying to find the area of the ENTIRE figure.
.5 TIMES pi times 9^2 = 122.75
the second part, calculating the square base is correct..
122.75+324 = 446.75 y^2
Teachers / Students = 3 / 74
Teachers / 2,500 = 3 / 74
To solve a proportion,
you cross-multiply: Teachers x 74 = 2,500 x 3
Divide each side by 74 : Teachers = 2,500 x 3 / 74
= 101.4 ===> 101 teachers
