9514 1404 393
Answer:
A(x) = 20000(0.88)^x
Step-by-step explanation:
The general form of these exponential equations is ...
A(x) = a·b^x
where 'a' is the initial value, and b is the annual growth factor. x is the elapsed time in years.
The growth factor is ...
growth factor = 1 + growth rate
Here, the growth rate per year is -12%, so the growth factor is ...
b = 1 -12% = 88% = 0.88
Of course, the initial value is a=20,000, so the equation is ...
A(x) = 20000(0.88)^x
Step-by-step explanation:
Break it into steps you can better understand
2 1/2 = 2.50cm
You want to take as many 2.50 cm pieces as possible so you cut one off.
58 - 2.50 = 55.5
and another
55.5-2.50 = 53
and so on...
Instead of subtracting like this, we use division
58 / 2.5
when you divide, this tells you how many 2.50cm pieces you can cut from a total length of 58cm
Answer:
41. 165.8 cm², 42. 101 m², 43. 75π ft², 44. 147π cm²
Step-by-step explanation:
41. 18x12=216, 3.14(4)²=50.24
216 - 50.24 = 165.76
42. 14x9=126, 5x5=25
126 - 25 = 101
43. πr² = (π)10²- (π)5² = 75π
44. πr² = (π)14²- (π)7² = 147π
the answer would 2.35 bc or thw way its written
Step-by-step explanation:
its wrong dont put it