Which statements about geologic time are true? Check all that apply. 1 Scientists developed the geologic time scale as they studied rock layers and index fossils.

2 The fossil record helps scientists describe life only in the seas and other bodies of water.
3 Precambrian time is the most recent time in Earth’s history.

4 Precambrian time makes up 88 percent of Earth’s history.

5 The first birds appeared during the Jurassic period.

6 The basic units of the geologic time scale are periods, eras, and centuries.

7 Humans appeared during the Cenozoic era.

answer

explanation

the given equation is

we can rewrite this as:

let

then the equation becomes:

the factors of 8 that sum up to -9 are {-1,-8}

we split the middle term with these factors to obtain,

we factor by grouping to obtain:

apply the zero product property to get:

but

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i just did something on this guy a few days a go give me two minutes to find it in my notes.

hello there, can you add the "following" multiple choices