Mathematics Middle School

Please Help Me Out!
Evaluate the expressions. Write your answer as a single base with a positive exponent.

(b^-7)^2 x b^6

a^-10 x a^8

Answers

Answer 1

Answer:

1/b^8, 1/a^2

Step-by-step explanation:

(b^-7)^2 x b^6

= b^-14 x b^6

= b^-8

= 1/b^8 In a fraction

a^-10 x a^8

= a^-2

= 1/a^2 In a fraction

Answer 2

Answer:

1/b^8

1/a^2

Step-by-step explanation:

Related Questions

Last year, the student population at Sunshine Middle School was 876 students. This year it is 891 students. What percentage did the student population increase?

Answers

Step 1 : Find the difference [ 891 - 876 = 15 ]

Step 2 : Determine the percentage

Answer: 15% from last year

:)
15% Have a good day!!!!

A dessert recipe calls for 2 cups of milk and makes 5 servings. How many cups of milk are needed for 8 servings?

Show Your Work

16 cups

​2 1/2 cups

20 cups

3 1/5 cups

Answers

Answer:

4 went down first it's comming up by 1/2

Someone help me with this please, I really need help, and it's due tmrw...PLEASE

Answers

Answer:

A perfect score on a test

Step-by-step explanation:

Since the score gets subtracted for each wrong answer, if x=0 then then nothing would get taken away from the initial 80

Answer:

a perfect score on the test

Step-by-step explanation:

80 is the highest score you can get. the amount of questions she got wrong (x) is multiplied by 4 and subtracted from 80. Therefore, 80 is a perfect score.

PLEAS HELP ME I WILL GIVE 30 POINTS

Answers

Answer:

answer should be 0.166...

Step-by-step explanation:

i dont think this will help but i hope it does...

D: 0.16666666……..


You divide 1 from 6 and you get 0.16666666666 repeating and add a line over the first 6 since that number is reaping



Hope this helps

Draw an example of a line with a consistent slope (nonvertical straight line). Add 2 slope triangles and provide their slopes to prove your answer.


NO LINKS

Answers

Answer:

these question are hard to draw on but there is points for you (0,4) and (7,4)

Somebody please solve this ASAP! Nobody answer saying I don't know or how was your day and what not- If you know the answer please provide how you solved this! I want to understand this problem..

Answers

Answer:

40%

Step-by-step explanation:

Her monthly paycheck was 120 dollars, because thats how much she earned that month. If she saved 48 dollars, then the percentage of the paycheck she saved is the percent of 120 that is 48 dollars, or 48/120. Simplifying, we have 2/5, (because you can divide both the top and the bottom by 24), and 2/5 is equal to 40%

it’s 40% because if you divide it will be 2/5 and if you multiply 2 by 20, which is what each 1/5 would be worth, it would be 40

Select the locations on the number line to plot the points 8/3 and −11/3.

Answers

Answer:

put 8/3 a little bit below the dash that shows the number 3 and put -11/3 a little bit ahead of the -4 mark

Step-by-step explanation:

The Answer is where the green arrows are.

10 Points + brainliest.
7a + 50 = 247

Answers

Answer:

a = 28.14 (Estimated)

Step-by-step explanation:

7a + 50 = 247

=> 7a = 197

=> a = 28.1428571429 (Using Calculator)

=> a = 28.14 (Estimated)

Hoped this helped.

Answer:

a= 190

Step-by-step explanation:

7a+50=247

=7a = 247-50

= a = 197-7

= a = 190

help me plz
evaluate the expression when b=5
4b²

Answers

Answer:

100

Step-by-step explanation:

hope this helps! :D

have a miraculous day!! <3

The answer is 100.
Hope this helps

what is 35x 1 ? OMG this is such a hard question!! first one to answer will get a brainliest!!!

Answers

Answer:

35 x 1 = 35

Step-by-step explanation:

answer: 35
explanation: anything times 1 equals itself

What is the greatest common factor of 57 and 76?

Answers

Answer:

19

Step-by-step explanation:

57 / 19

76 / 19

Answer:

19

Step-by-step explanation:

Have a nice day

The following table shows the number of visitors to Yellowstone National Park from 2000 to 2006.
What was the percent of change in the number of tourists between 2000 and 2001?

Answers

Answer:

About 90% of visitors at the Yellowstone National Park was changed from 2000 to 2001.

Step-by-step explanation:

Answer:

5,596,759

Step-by-step explanation:

The the answer is five million, five hundred ninety-six thousand, seven hundred fifty-nine


Shaun is painting a fence. After finishing three-eighths of the length of the fence he finds that
he has painted 15 feet. Let f be the total length of the fence, set up an equation like one of
those in 4(b) and solve to find f. Use either of the two methods.

Answers

Answer: F = 40

Step-by-step explanation:

*Important: I do not know what the methods mentioned in 4b are, nor do I know its equation. Please take this into account.

What we know:

3/8 is equal to 15 ftF is the total amount of fence paintedWe need to set up and solve the equation

How we do this:

Using basic division, this equation is solveable.

Process:

Divide to find 1/8                                                  15/3 = 5 (1/8f = 5)Multiply to find total                                            5 x 8 = 40  

                                                                                       (1/8 x 8 = 8/8)

Solution:

F = 40

8(5) = F

Answer: x = 40

Step-by-step explanation:

let f be the total length of the fence:

(3/8)f = 15

divide both sides by 3/8

f = 15 x 8/3

f = 120/3

f = 40

What is equivalent to 5(8d)

Answers

Answer: ( 2 + 3 ) ( 8d )

Step-by-step explanation:

There are multiple possible answers and I'm not sure if you're missing part of the question.

Correct me if I am incorrect.

I agree with the person that said (2 + 3) (8d)

i need help i will give 17 po.ints and pleas no link i will also give brainlyiest

Answers

Answer:

The correct answer I believe is 5 13/40. I hope this helps! :) Please tell me If I'm incorrect!

Answer:

Step-by-step explanation:

4. 5.325

Please help me with this question!!

Answers

The answer is D
Explanation..
Answer is D

Step by step explanation

Please Help!! 15 Points!
I really need help! I'm having difficulties solving these problems on the attachment.
If you could answer correctly please do so! will be really helpful!!
Thanks!

Answers

10x28252x400 + 3917 = 1083 remainder 61035 quotient

The eighth-grade class is planning a trip to Washington, D.C. this spring. They need a minimum of 75 people to attend in order to reserve buses. If one-third of the 8th-grade class plus 17 parent chaperones have signed up and this is enough to satisfy the requirement, how many students must be in the 8th-grade class?
X - how many students must be in the 8th-grade class

Answers

Answer:

There needs to be 174 Students in the 8th grade class.

Step-by-step explanation:

173(1/3) is 58

58+17=75

What is the volume of this solid?
Most Precise Answer = Round to the nearest hundredth
Approximate Answer = Round to the nearest tenth if necessary.

Answers

Answer:452.4

Step-by-step explanation:


The letter P on the number line below represents the number
(Use the hyphen for negative numbers and write answer as a decimal, such as -7.2)
P
(Sorry for messy pic)

Answers

54:67 34333:57643;7 (5577+DJ ) %hhc

Monica paid sales tax of $1.50 when she bought a new bike helmet. The sales tax rate was 5%, how much did the store charge?

Answers

Answer

1.50 cents for 5% sales tax on 30 dollars

Step-by-step explanation:

Answer:

$30

Step-by-step explanation:

$30x0.05=$1.50

Write a unit rate for the situation.

$12.50 for 5 ounces

$\$$
per ounce

Answers

It’s is 2.5 I have explained it as a picture

Find the missing values in the ratio table. Then write the equivalent ratios.

Gnats 2 14
5
Flies 8
28

Answers

Answer:6:14

Step-by-step explanation:I wasn't sure if you were trying to put a mixed number and tell the diffrence and I don't know if this is the right answer.

Gnats 2 14 5 Flies 8 28 6:14

help please ! whoever gets it right gets 10 extra points !

Answers

Answer: your answer is right, but I don't know why you got 1 out of 2.

Step-by-step explanation:

Your answer is correct like the answer above said I don’t know what happened

help me and i will mark you the brainlyist

Answers

1a. n ≤ 21
1b. n ≥ 5
1c. n > 3/5

2d. n < 14
2e. n ≥ 14
The answer is what the guy above said

Audrey needs to remove one point from the graph so it represents a function. What points can Audrey remove?

Select all that apply

Answers

Third and fourth points are good
im pretty sure one of the answers is b

A plant is 5cm tall and growing at a rate of 3cm a month. What is the right equation?

1. y= 5 - 3x
2. y=3x+5
3. y= 5x+3

Answers

Answer:

C. y=3x+5

Step-by-step explanation:

It is at a growing rate of 3cm a month.

x = centimeters a month

y = total amount

2 y=3x+5 is the correct answer

Picture is below....

Answers

Answer:

54

Step-by-step explanation:

HELPPPPPPP!!!! I NEED ANSWER QUICK!!!!

Answers

Answer:

-13u

Step-by-step explanation:

-10u-3u

=u(-10-3)

=-13u

The price of a pair of headphones is $49.99 before tax. Ron bought the headphones for a 50% discount. He then paid sales tax of 8% on the discounted price.

Part A: How much did Ron pay in sales tax? Show all work and steps in your solution. (5 points)
Part B: What is the total amount that Ron paid for the headphones? Show all work and steps in your solution.

Answers

Answer:

A. $2.00

B. $26.99

Step-by-step explanation:

0.5 x 49.99 = 24.995

49.99 - 24.995 = 24.995

0.08 x 24.995 = 1.9996 and round to the nearest hundredth

24.995 + 1.9996 = 26.9946

round to the nearest hundredth

Answer:

Part a: 1.9996

Part b: 26.9946

Step-by-step explanation:

STEP 1:

Find the unit rate (1% of 49.99). You should get 0.4999. Then, multiply 0.4999 by 50. You should get 24.995.

STEP 2:

Find the unit rate of 24.995. You should get 0.24995. Then multiply 0.24995 by 8. You should get 1.9996 (answer for part a).

STEP 3:

Add 1.9996 to 24.995. You should get 26.9946 (answer to part b).

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