Answer:
I think the first 4 are right
5-8
sorry I cant read it it it is too small so I will explain
5.1 x 10^-2 would be 0.051 just move the decimal left x spaces where x is the exponent
9
4.4 x 10^3
10
7.5 x 10^4
11
6.99 x 10^7
12
5.75 x 10^9
13
8.4 x 10^-2
14
9.9 x 10^-3
15
5.15 x 10^-7
16
3.07 x 10^-5
17
you got it right
18
19
Singapore
Luxembourg
Australia
Egypt
Brazil
20
3,670,000,000
21
6.2 x 10^-6
22
125,000,000,000
1.25 x 10^11
Step-by-step explanation:
i hope I helped
101.75
$15*5=75
75+40=115
115-13.25=101.75
True similar triangles don't have to be the same size
B. 1/16
f(-4) = 2^(-4) = 1/(2^4) = 1/16
Given diameter (D) = 100
Radius = D/2 = 50
Circumference = πD
= 100π
= 314.15926535898