Angle a and b are supplementary angles which means that when added they equal 180.
so we must set our equation equal to 180.
8x+74+2x+56=180
which simplifies to 10x+130=180
then subtract 130 from both sides.
10x=50
x=5

So we plug in 5 to find the measure of b.
2(5)+56=b
10+56=b
66=b
the measure of angle b is 66 degrees

8 0

3 years ago

The value of a car x years from now is given by v(x) = 2000(0.75)x. What is the annual compound interest rate of depreciation?

patriot [66]

Hello! So because the value in the parenthesis is less than one, this represents exponential decay. 0.75 is 75% in decimal form. Percents are parts of 100. let's multiply that number from 100. 100 - 75 is 25. There. The rate of depreciation is 25%.

4 0

3 years ago

Heya!

Masteriza [31]

Hello Again! :)

This time I got the correct answer, for you this time....

$Jace$ $is$ $here$ $to$ $hel$ $^{p}$ :