Answer:
c = 15 meters
Step-by-step explanation:
This is solveable using the Pythagorean Theorem,
let's say a = 9 and b = 12,
a^2 + b^2 = c^2, so
9^2 + 12^2 = 225 then,
sqrt(225) = 15, so c = 15 m
Answer:
The purchase price is 71.4% of the sale price.
Step-by-step explanation:
1) 45 / 63 = 0.714
2) 0.714 * 100 = 71.4%
I didn't see part B.
Answer:18
Step-by-step explanation:
Sin72=cosy
0.9511=cosy
Y=cos(inverse)0.9511
Y=18
Answer:
x=21
Step-by-step explanation:
4x+12=96
subtract 12 from both sides
4x=84
divide both sides by 4
x=21
A = s^2 and P = 4s.
So if A = 25, then s^2 = 25 so s = 5. Then 4*s = 4*5 = 20
The perimeter of a square with an area of 25cm^2 is 20cm.
Increase the perimeter by 4 to get 24cm. Then 4s = 24 implies s = 6. Then s^2 = A = 6^2 = 36.
Now the area is 36 cm^2
