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4 years ago

When muiltplying two exponents, If the base numbers are DIFFERENT can u add the two exponents?

1 answer:

8 0

Multiplying exponents with different bases
First, multiply the bases together. Then, add the exponent. Instead of adding the two exponents together, keep it the same.

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the train to hogwarts is moving at a speed of 120 mph. if hogwarts is 420 miles away, how long will the students train ride be ?

dexar [7]

Answer:

The train ride is 3.5 hours

Step-by-step explanation:

We know that distance is equal to rate times time

d = rt

We know the distance and the rate

420 = 120*t

Divide each side by 120

420/120 = 120t/120

3.5 =t

The train ride is 3.5 hours

4 0

3 years ago

Read 2 more answers

Help me plz and explain this a grade!!!

77julia77 [94]

Part 1: should be C. Because the question said 1.2 added to a number.

Part 2:16.8

4 0

4 years ago

Which function is equal to -1/2?

den301095 [7]

A is equal to -1/2

B is equal to .866

C is equal to 1/2

D is equal to -.866

Therefore your correct answer is c

3 0

3 years ago

A scale drawing of a school bus has a scale of 12 inch to 5 feet. If the length of the school bus is 412 inches on the scale dra

sattari [20]

Answer: Actual length of the bus = 171.67 feet

Width of the lake on the scale drawing = 12.5 inches

Step-by-step explanation:

Given : A scale drawing of a school bus has a scale of 12 inch to 5 feet.

i.e. 12 inch = 5 feet

$\Rightarrow \text{ 1 inch}=\dfrac{5}{12}\text{ feet}$

If length of school bus on scale drawing = 412 inches

Then, Actual length of bus = $\dfrac{5}{12}\times412=171.67\ \text{feet}$

A scale drawing of a lake has a scale of 1 cm to 80 m.

If the actual width of the lake is 1,000 m

then, the width of the lake on the scale drawing = $\dfrac{1000}{80}=12.5\text{ inches}$

8 0

4 years ago

I need to solve the whole thing

kipiarov [429]

1.) 40, 2.) 8, 3.) 18, 4.) 15, 8.) 12, 9.) 30, 10.) 72, 11.) 36

4 0

4 years ago