Answer:
Step-by-step explanation:
I can't read it very well. If it says
5(6n-4)+2=68
30n-20+2=68
30n=86
n= 43/15 or 2 13/15
If it says
5(6n-4)-2=68
30n-20-2=68
30n=90
n= 3
Answer:
x - 1.7 = 14
Step-by-step explanation:
Sarah thought of a number: x
Then she subtracted 1.7 FROM it: x - 1.7
and gets an answer if 14: x - 1.7 = 14
so the equation is x - 1.7 = 14
First, let's calculate the area of the rectangle. Find the distances between the length and the width. For the width we can use point A and point D.
(2, 2) and (20, 2)
20 - 2 = 18
So the width is 18 cm. Now find the length. We can use point A and point B.
(2, 2) and 2, 26)
26 - 2 = 24
So the length is 24.
So the area of the rectangle is 432 square centimeters, now let's find the area of the circle.
The radius is given as 15 cm. Use 3.14 to approximate for pi.
So the area of the circle is approximately 706.5 square centimeters. Subtract this area from the area of the rectangle to find the value of the shaded area.
Answer:
h(x) = 6x² - 10x - 4
Step-by-step explanation:
f(x)g(x) = (2x - 4)(3x + 1)
Each term in the second factor is multiplied by each term in the first factor
2x(3x + 1) - 4(3x + 1) ← distribute both parenthesis
= 6x² + 2x - 12x - 4 ← collect like terms
= 6x² - 10x - 4
Answer:
4a - 40 = 1
Step-by-step explanation:
4/5 a - 8 = 1/5
Multiply each side by 5 to clear the fractions
5(4/5 a - 8) = 1/5 *5
distribute
4a - 40 = 1