All categories

3 years ago

Explain why you can subtract exponents when you are dividing two powers with the same base.

2 answers:

6 0

To divide exponents (or powers) with the same base, subtract the exponents. Division is the opposite of multiplication, so it makes sense that because you add exponents when multiplying numbers with the same base, you subtract the exponents when dividing numbers with the same base.

masya89 [10]3 years ago

3 0

When you divide numbers, you make the value smaller. So subtract the exponents will make the value with that base smaller.

You might be interested in

Two planes are the same altitude. From the airport , one plane is 50 km away in the direction of N°60 E and another is 80 km awa

djverab [1.8K]

9514 1404 393

Answer:

78.5 km

Step-by-step explanation:

Measured at the airport, the angle between the two planes is ...

180° -60° -50° = 70°

The law of cosines tells us the distance between the planes is ...

d = √(50² +80² -2·50·80·cos(70°)) ≈ √6163.84 ≈ 78.5 . . . km

The planes are about 78.5 km apart.

6 0

2 years ago

A movie was shown 6 times every day from November 24 through December 19. How

butalik [34]

Answer: A. 138 times

How?
During that time period there were 23 days so 23 multiplied by the amount of times played per day (6)
You get the answer 138

6 0

3 years ago

Read 2 more answers

if 18 horses finished a certain amount of corn in 64 days. 72 horses will finish the same quantity at the same rate?

zaharov [31]

Answer:

It is 4

Step-by-step explanation: I know its four because 72 divided by 18 is four. I also know that 64 divided by 18 is 3.555 which is close to four.

5 0

3 years ago

The table shows the Webster family’s monthly expenses for the first three months of the year. They are $2,687.44, $2,613.09, and

zloy xaker [14]

8109.17 that is the answer if u add it

6 0

3 years ago

Read 2 more answers

A recipe uses 214 cups of flour for a batch of cookies. Henry makes 10 batches of cookies for a bake sale.

yanalaym [24]

Answer:

Step-by-step explanation:

A recipe uses 214 cups of flour for a batch of cookies. Henry makes 10 batches of cookies for a bake sale.

A model shows a total of c cups divided into 10 sections, each labeled 2 and 1 fourth.

Part A

Which equation models the total number of cups of flour, c, Henry needs?

c+214=10

214×c=10

10+c=214

214×10=c

Part B

How many cups of flour does Henry need?

2014cups

2212cups

2434cups

2512cups

Part C

Estimate how much flour Henry would need to make 15 batches of cookies. Explain.

I would round 214 to 2, so Henry would need about 30 cups of flour.

I would round 214 to 3, so Henry would need about 45 cups of flour.

I would round 214 to 1, so Henry would need about 15 cups of flour.

I would round 214 to 234, so Henry would need about 30 cups of flour.

8 0

3 years ago