It would be A. 2.28 x 10^9
You don’t multiply exponents you only add them for now
Answer:
x= 
Step-by-step explanation:
We have given,
We need to solve for x.
Squaring both sides, we get:
3-5x = x + 2
or 3 - 2 = x + 5x
or 1 = 6x
or x =
Hence we got x=
A) The amount of change is .20 (20 cents) so we need to find what percent of $4.00 is .20...
4 * x = .20
x = .20/4 = .05
Multiply by 100 (move decimal 2 places to the right) to change decimal to percent.
.05 = 5% increase
b)The increase is .75. What percent of 3.00 is .75
3 * x = .75
x = .75/3
x = .25 x 100 = 25% increase
c) The amount of change is .75 but this time we are going from 3.75 to 3.00 so we find out what percent .75 is of 3.75.
3.75 * x = .75
x = .75/3.75
x = .20 x 100 = 20% decrease
Answer:
°
Step-by-step explanation:
Answer:
The expression that represents the width of the rectangle is 4w + 9
Step-by-step explanation:
The formula of the area of the rectangle is A = length × width
Let us solve the question
∵ The area of a rectangle is 8w + 18 square feet.
∴ A = 8w + 18
∵ The HCF of 8 and 18 is 2
→ Divide each term of the area by 2 to get 2 as a common factor
∵ 8 ÷ 2 = 4 and 18 ÷ 2 = 9
∴ A = 2(4w + 9)
∵ The length of the rectangle is 2 feet
→ Substitute it in the formula of the area above
∵ A = 2 × width
∴ A = 2 width
→ Equate the two right sides of the area
∴ 2 width = 2(4w + 9)
→ Divide both sides by 2
∴ The width = 4w + 9
∴ The expression that represents the width of the rectangle is 4w + 9
