Eighteen tens < 21 × (5+5)
Hope this helps!
Answer:
x=8
Step-by-step explanation:
the y-value in the first pair decreased by half, so the x-value must double due to inverse variation.
Answer: m=6, m=-4
Step-by-step explanation:
To solve this proportion, we have to cross multiply.


Now that we have cross multiplied, we actually need to FOIL the left side to expand the equation.

Combine like terms.

We can move all terms to one side and then solve for m.

We can actually factor this to:

We set each factor equal to 0 to find m.
m-6=0
m=6
m+4=0
m=-4
The value of the expressions (2.5 × 10⁻³) and (7.1 × 10⁶) in scientific notation is 3.5211 × 10⁻¹⁰. Then the correct option is B.
<h3>What is division?</h3>
The division means the separation of something into different parts, sharing of something among different people, places, etc.
The expressions are 2.5 × 10⁻³ and 7.1 × 10⁶.
We have to divide 2.5 × 10⁻³ from 7.1 × 10⁶.

The value of the expressions (2.5 × 10⁻³) and (7.1 × 10⁶) in scientific notation is 3.5211 × 10⁻¹⁰. Then the correct option is B.
More about the division link is given below.
brainly.com/question/369266