7. Simplify the expression. Write the answer using scientific notation. (0.4x10-6)(0.7x10-2)
O 2.8 x 10-7
O 2.8 x 10-8
O 0.28 x 10-9
O 2.8 x 10-9

1-10power of 1

Step-by-step explanation:

(0.4×10-6)(0.7×10-2)

(-2)(5)

-10

1×-10 power of 1

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

i use my brain for prombles like this maybe you could try it

step-by-step explanation: