Option A. if your using Plato!
Brainliest pls! thx! :)
Answer:
f(-3)=9
Step-by-step explanation:
We want to find what f(x), or y is, when x is equal to -3.
f(x)=x^2
We want to find f(-3). Therefore, we can substitute -3 in for x.
f(-3)=(-3)^2
Evaluate the exponent. -3^2 is the same as -3*-3.
f(-3)=-3*-3
f(-3)=9
Answer:
$7.5
Step-by-step explanation:
Let
Quantity of stickers=x
Price of stickers=y
5 stickers cost $3
12 stickers cost $y
x/y = x/y
5/3 = 12/y
Cross product
5y=12*3
5y=36
Divide both sides by 5
5y/5 = 36/5
y=7.5
12 stickers= $7.5
Therefore, the price of 12 stickers= $7.5
Split the shape into two shapes
A square
Area = L x H = 20 x 21 = 240 cm2
A right angle triangle
Area of right angle triangle = L x H divided by 2
20 x 21 = 240 divided by 2 = 120 cm2
Add both areas
240 + 120 = 360 cm2
So it would be either 1/3 1/4 1/5 ect., ect.