He sun is about 93 million miles from the earth. express this distance in scientific notation. a) 0.93 x 108 b) 9.3 x 107 c) 9.3 x 106 d) 93 x 106

B)  9.3 * 10^7.

Step-by-step explanation:

93,000,000

Recall that scientific notation is N.N..  * 10^n  where N.N.. is a number between 1 and 10 and n is an integer.

There are 7 digits after the 9 so the distance in scientific form is

9.3 * 10^7.

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it