Express 0.00212 in scientific notation.

2.12x10 to the -3rd power

Step-by-step explanation:

To put this into scientific notation, you first have to get a number that is not 0 in the one's place by moving the decimal:

0.00212

0002.12

It moved three places to the right, so the exponent will be negative:

2.12x10 to the -3 power

That is your answer

Hope this helps!

answer: c

substitute in the values.

for a:

f(0) = 0 + 9

f(0) = 9

a is a solution.

for b:

f(7) = 14 + 9

f(7) = 23

b is a solution.

for c:

f (3) = 6 + 9

f(3) = 15

c is not a solution. it's supposed to be 14.

for d:

f(2) = 4 + 9

f(2)= 13

d is a solution.