Mathematics Middle School

4n^4•2n^-3
Your answer should only contain positive exponents

Answers

Answer 1
The answer is 8n. You can get this answer by multiplying the 4 and 2 first to get 8, then since the bases are the same (both bases are n) you can just add the exponents to get 1. Since n^1 is just n, the answer would be 8n
Answer 2
8n
I had the same question

Related Questions

Select all the equations that can represent the question: "How many groups of 45 are in 1?"

1. ?·1=45

2. ?·45=1

3. 45÷1=?

4. 1÷45=?

5. 1·45=?

Answers

Answer:

number 3 (45)

number 5(45)

number 1 (45)

#1-45
#2- 1
#3 45
#4-0.2
#5-45

Show your work

1. A cylindrical jar has a radius of 5 inches and a height of 9 inches. The jar is filled with marbles that have a volume of 20 in3. Use 3.14 for pi. Show work. Complete sentences.
a. What is the volume of the jar?

b. How many whole marbles can fit in the jar?

Answers

You would add all of your numbers up and divide by that answer and the number of your numbers and then that would be your answer

Halee set up a lemonade and cookie stand at the end of her street. She is selling lemonade for $0.25 per cup and cookies for $0.25 each. She sells 15 cookies and 35 cups of lemonade. Her total sales can be represented by the expression shown.

0.25(35) + 0.25(15)

Use the commutative property to write an equivalent expression.
A) 0.25(15 + 35)
B) 0.25(15) + 35
C) 0.25 + 35 + 15
D) 0.25(15) + 0.25(35)

Answers

Answer:

A!!

Step-by-step explanation:

The awnswer is is A because if they both have parentheses you put the smallest number first then put the big number add the parentheses

the number of tigers increased from 25 to 40 over a short period of time. What is the percentage increase in the number of lions? Round your answer to the nearest tenth of a percent. *

Answers

75 percent increase
explanation: 40-25=15
then 15/original amount=.75 or 75 percent
Check: .75x25+25=40
60% increase

40-25=15

15 of 25 is 60% (you can check this too because 25x.6 is 15)

The price of a hard drive decreased from 180 to 144. The price decreased again by the same percentage as it had during its first decrease. What is the difference between the original price of the hard drive and its new cost? Please show steps. So, that I can understand the problem

Answers

64.8 i think
180-144=36
then divide it by the original amount
36/180=.2
20% decrease
144 x .2=28.8
144-28.8=115.2 is the new price
180-115.2=64.8
mark brainliest if it helps

in which number is the value of the 5 digit ten times greater than the digit 5 in 0.5

A). 7.05

B). 25.1

C). 53.6

D). 124.005

Answers

Answer:

the answer is B

Step-by-step explanation:

I don't know how to explain im sorry

D is the answer I did this one before

Below is a graph of p, an insect population, w weeks after it was first measured. The population grows exponentially.

Write an approximate domain and range for this situation.
Write an equation relating p and w.

Answers

The range and the domain of the graph are the sets of non-negative real numbers, while the equation relating p and w is [tex]p = 300 * 3^w[/tex]

From the graph, we have the following ordered pairs

(1,900) and (3,8100)

An exponential function is represented as:

[tex]p = ab^w[/tex]

At the point (1,900), we have:

ab = 900

At the point (3,8100), we have:

ab^3 = 8100

Divide both equations

[tex]\frac{ab^3}{ab} = \frac{8100}{900}[/tex]

Evaluate the quotients

[tex]b^2 = 9[/tex]

Take the square roots of both sides

b = 3

Recall that:

ab = 900

So, we have:

3a = 900

Solve for a

a= 300

Hence, the equation is:

[tex]p = 300 * 3^w[/tex]

Read more about exponential equations at:

https://brainly.com/question/11464095

DUE AT 8 MT!!! HELP ASAP!!!
Define a variable, set up an equation, then solve.
Max is already 224 miles into his road trip. If he is averaging 52 miles per hour and the trip is 640 miles total, how many more hours does he have left to drive?
x - hours left to drive

Answers

Answer:

8 hours.

Step-by-step explanation:

1. Subtract  640-224=416

2. Divide 416/52

3. 8 hours

Answer:

8 hours.

Step-by-step explanation:

We have been given that Max is averaging 52 miles per hour and the trip is 640 miles total. Max is already 224 miles into his road trip.

Let us find the remaining distance of trip by subtracting the distance already covered from total distance.

Remaining Distance = 640 miles - 224 miles

Remaining Distance = 416 miles

We will use formula: Time = Distance/Speed to find the number of hours Max still have to drive.

Time = 416 miles/52 miles/hour

Time = 416 miles/52 × hour/miles

Time = 416/52 hour

Time = 8 hours

Therefore, Max have left 8 more hours to drive.

solve the proportion

Answers

Answer:

3. m= -15

4. x= 9

Step-by-step explanation:

3. Cross multiply: -6m=90

Solve: m= -15

4. Cross multiply: 7x+7=10x-20

Solve: x=9

Step-by-step explanation:

Here,

-m=10*9/6

or,-m=90/60

or,-m=15

or,-m=-(-15)

and, m=-15

2

Here,

(x+1)*7=(x-2)*10

or,7x+7=10x-20

or,7+20=3x

or,x=27/3

therefore, x=9ans

Write the Pythagorean theorem equation in an equivalent form with the a² isolated.

Answers

Answer:

[tex]a^{2}= -b^{2}+c^{2}[/tex]

Step-by-step explanation:

Rewrite the Pythagorean Theorem equation in terms of [tex]a^{2}[/tex].

[tex]a^{2}+b^{2}=c^{2}[/tex]

Subtract b squared from both sides.

[tex]a^{2}= -b^{2}+c^{2}[/tex]

Answer:

A^2=-B^2+H^2

Step-by-step explanation:

A^2+B^2=H^2

Isolate A^2. Subtract B^2 from both sides.

A^2=-B^2+H^2

Hope this helps :)

solve pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:  -31

Step-by-step explanation:

[tex]a_{19}[/tex] =5+(19-1)(-2)                          then our BODMAS method

[tex]a_{19}[/tex] =5+18×(-2)

[tex]a_{19}[/tex] =5-36

[tex]a_{19}[/tex] = -31

-31 is the correct answer!

V= U + at
U=2 a=-5 t=1/2

What is the value of V?

Answers

The answer is -0.5 . I hope it helps

Answer:

v=-1/2

Step-by-step explanation:

v=u+at

v=2+(-5*1/2)

v=2-5/2

v=4-5/2

v=-1/2

Explain the relationship between a strategy, such as number sense, and a written method , such as partial products or area models , for multiplying decimal number's.

Answers

Answer:

Hello

Step-by-step explanation:

You can take away the decimals

for example 0.33 x 0.7

do 33 x 7

which is 231

the 0.33 has 2 decimal spaces because there are 2 digits after the point

0.7  has 1 decimal place because there is 1 digit after the point.

so in total, there is 3 decimal

because you do 2 + 1

3

from the left, you count backwards and add the decimal point

the final answer should be 0.231

hope it helped

Mark me as brainliest

Find the answer
PLZZZZZZ!!

Answers

25 pi or 78.5
Hope this helps
The answer will be 25pi or 78.5

James bought a pound of chicken for $2.99, a pound of cheese for$5.99, and a bag of potatoes for $3.99. Find his total at checkout if the sales tax is 7%

Answers

Answer:

Its about 0.90$

Step-by-step explanation:

Hope I get it right. Please mark brainliest if I do thanks! :)

Answer:

13.88

Step-by-step explanation:

what is the sum of 2 2/5 = 1/15

Answers

Answer:

2 7/15 i think brainlest

Step-by-step explanation:

Answer:

2 7/15

Step-by-step explanation:

2 2/5 + 1/15

Turn them into improper fractions.

12/5+1/15

In order to add fractions, they need the same denominator.

12/5x3/3=36/15

36/15+1/15=37/15

=2 7/15

Hope this helps :)

What property does this illustrate?

Answers

Answer:

Communitive property i think thats how you spell it

Step-by-step explanation:

Andre is walking from home to a festival that is 1 5/8 kilometers away. He takes a quick rest after walking 1/3 kilometers. In this situation, which question can be represented by the equation: ? ⋅ 158 =1/3

1. What fraction of the trip has Andre completed?

2. How many more kilometers does he have to walk to get to the festival?

3. What fraction of the trip is left?

4. How many kilometers is it from home to the festival and back home?

Answers

Answer:

I think the answer should number 3.

Number three because it shows that trip that is left and the total.

Explain how to solve the question with the model. Explain with a ton of details.

Answers

Well first you could multiply things to see what gets you to 213

PLZ SAVE MEEEEEEEEEEEEEEEEE

Answers

Answer:

I think the answer is 60

Step-by-step explanation:

I am sorry if it s wrong

Answer: 600, because 54,000 divided by 90 is 600

D. Complete the diagram to find the cost per class in the 8-class block.What is the cost per class

Answers

Answer:

what is the diagram

Step-by-step explanation:

Solve for x.
3/5 (x − 7 1/0)= −3 1/4
Enter your answer as a mixed number in simplest form.

Answers

7 1/0 doesn’t simplify…Is it perhaps a different fraction?

Answer:

cant simplify

Step-by-step explanation:

PLS help i need this done now!

Answers

Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

7cm
2 cm

2 cm

5 cm

2 cm

2 cm

14. The letter "T" is made by combining two

wooden blocks together. If Sally wants to

paint this letter T red, at least how many

cubic cm of paint would she need?

3

A. 100 cm

B. 104 cm

C. 108 cm

D. 112 cm

Answers

Answer:

(y - x)(x - 4) = 16 - x ^ 2 help please

find the gcf of 30 and 66

Answers

Answer:

6 is the GCF of 30 and 66

Step-by-step explanation:

The GCF of two non-zero integers, x(30) and y(66), is the greatest positive integer m(6) that divides both x(30) and y(66) without an remainder.

REPOST NO LINK SPAM OR REPORT:

The variables x and y vary directly. Use the values to find the constant of proportionality, k . Then write an equation that relates x and y . Write any fractions in simplest form.

Answers

Answer:

k = 9/8

y = 9/8x

Step-by-step explanation:

45/40 = 9/8

To check:

40 * 9/8 = 45

Hope this helps!

Solve.

x5=−0.92

What is the solution to the equation?

Enter your answer as a decimal in the box.

Answers

Answer:

-4.6

Step-by-step explanation:

Given the equation [tex]x5 = -0.92[/tex] isolate [tex]x[/tex] by multiplying 5 in both sides of the equation.

[tex]5\cdot\frac{x}{5} = -0.92\cdot5 \\x = -4.6[/tex]

The right answer is 4.60

USE PICTURE TO ANSWER QUESTION

Answers

Answer:

k = 24

y = 24x

Step-by-step explanation:

72/3 = 24

y = 24x

72 = 24(3)

72 = 72

Hope this helps!

K=24
Y=24x

I hope this helped

please help with this (JK)

Answers

Answer:

8 miles

Step-by-step explanation:

i think it's 8 miles if you reread the sentence it might help

NO LINK SPAM OR REPORT: Tell whether x and y show direct variation. Explain your reasoning. If so, find k.

x−y=0

Answers

Answer:

2. yes; the equation can be written as y = kx; k = 1

Step-by-step explanation:

x-y = 0

That means x and y have to be the same value.

If you multiply a number by 1, you get the same thing.

If you multiply x by one, you get y (the same value).

Hope this helps!

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