Mathematics: Find the nth term of the sequence -5,-1,3,7

Find the nth term of the sequence -5,-1,3,7

petroale000

10.02.2022

$\bold{a_n=4n-9}$

Step-by-step explanation:

-1-(-5) = 4 and 3-(-1) = 4 and 7-3 = 3

so: d=4

$a_n=a_1+d(n-1)\\a_1=-5\\d=4\\\\a_{n}=-5+4(n-1)=-5+4n-4=4n-9$

0,0(0 оценок)

julih74

22.06.2022

3 inches.

Step-by-step explanation:

The volume of an sphere is defined as

$V=\frac{4}{3}\pi r^{3}$

According to the problem, the volume of an sphere is 113.04 cubic inches. If we use this fact, we can find the radius

$113.04=\frac{4}{3}\pi r^{3}$

$113.04=\frac{4}{3}\pi r^{3}\\\frac{3(113.04)}{4\pi}=r^{3} \\r=\sqrt[3]{27}\\r=3$

Therefore, the radius is 3 inches long.

0,0(0 оценок)