3which pairs of numbers in scientific notation show one number that is about
20 times as great as the other number?
choose all that apply.
a
b
c
d
e
2.01 x 10' and 4.25 x 106
5.97 x 104 and 3.12 x 103
4.91 x 106 and 5.09 x 103
8.21 x 10-3 and 4.13 x 10-4
2.94 x 10-8 and 6.22 x 10-7

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft