Answer:
9
Step-by-step explanation:
inverse operations: 10 - 28 = 18 18 / 2 = 9
I think the correct answer is C. Since a=πr², in order to get the area to become 1/4 of what it was previously, the radius needs to be cut in half to make the divide that side by 4. a=π(r/2)²=πr²/4 and will therefore multiply the area by 1/4.
Answer:
The dimensions are 7.4m by 15.1 m (to the nearest tenth).
Step-by-step explanation:
Area = length * width
If the width = x then the length = 3x - 7 so
Area x(3x - 7) = 111
3x^2 - 7x - 111 = 0
Using the quadratic formula:
x = [ -(-7) +/- √((-7)^2 - 4*3*-111)] / (2*3)
x = 7.36, -5.03.
The width must be positive s it is 7.36 m.
The length = 3(7.36) - 7
= 15.08 m.
Answer:
x=(728^y){×3/)
Step-by-step explanation:
Ох o3 хigle is 180
VXAB=BC,AM=MC
BM IAC , EF I BC(7,6)AB
MA
B
F
с
A
