Hi!
Imagine a rectangle with a width of 20 inches, and a height of 16. Find the length around the rectangle (the perimeter).
16+20+16+20=72
There are 12 inches in a feet. How many feet are in 72 inches?
72/12=6
Lana needs 6 feet of ribbon. She bought 7 feet.
7-6=1
It is enough ribbon.
1 foot will be leftover.
Hope this helps! :)
-Peredhel
Answer:
first option
Step-by-step explanation:
3x² - 18x + 5 = 47 ( subtract 5 from both sides )
3x² - 18x = 42 ( divide through by 3 )
x² - 6x = 14
Using the method of completing the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 3)x + 9 = 14 + 9
(x - 3)² = 23 ( take square root of both sides )
x - 3 = ± 
( add 3 to both sides )
x = 3 ±
Answer:
y=1, y=-2/5
Step-by-step explanation:
The formula is
A=p(1+r/n)^nt
A future value ?
P present value 672
R interest rate 0.071
N compounded monthly 12
T time 14 years
A=672×(1+0.071÷12)^(12×14)
A=1,810.45
Hope it helps!
Answer:
f^-1(x) = 9x+18
Step-by-step explanation:
To get the inverse of a function, we exchange x and y then solve for y
y = 1/9x -2
Exchange x and y
x = 1/9y -2
Add 2 to each side
x+2 = 1/9y-2+2
x+2 = 1/9y
Multiply by 9
9(x+2) = 9*1/9y
9x+18 = y
f^-1(x) = 9x+18
