Mathematics Middle School

evaluate the expression 81 minus 8 to the second power. 81 minus 8 to the second power

Answers

Answer 1

Answer:

17

Step-by-step explanation:

To evaluate the expression, subtract 8² from 81:

81 - 8²

8² = 8 × 8 = 64

81 - 64 = 17

17

Related Questions

Please helppp My teachers isnt helping

Answers

anything raised to the power of 0 is 1

1: 1
2: 1
3: 5
4: -8
5: 1
6: 2
7: 3
8: 10

The mean of four numbers is 7. Three of the numbers are 5, 7, and 7. What is the fourth number? Show your work.

Answers

Answer:

4th number = 9

Step-by-step explanation:

let 4th number = X

mean = 7

observations = 5, 7, 7, X

..............................................

mean = sum of observations ÷ numbers of observations

7 = 5+7+7+X ÷ 4

28 = 19 + X

28 - 19 = X

9 = X

The mean of the four numbers is 7. Three of the numbers are 5, 7, and 7. So, the 4th number would be 9.

How to find the mean value of a data set?

The mean value of the data set is the ratio of the sum of the data set's values to the number of values it has.

If the data set consists of values

[tex]x_1, x_2, ..., x_n[/tex]

, then we get the mean value as:

[tex]\overline{x} = \dfrac{x_1 + x_2 + \cdots + x_n}{n}[/tex]

The mean of the four numbers is 7. Three of the numbers are 5, 7, and 7.

let 4th number = X

Mean = 7

observations = 5, 7, 7, X

Mean = sum of observations / numbers of observations

[tex]7 = 5+7+7+X / 4\\28 = 19 + X\\28 - 19 = X\\9 = X[/tex]

Learn more about mean;

https://brainly.com/question/4515179

#SPJ2

The price of a cell phone model was tracked over a ten-month period. The graph shows the relationship between the price of the phone and the time.



How does part E of the graph relate to the situation?

A.
Part E represents a period when the price was not tracked.

B.
Part E represents a period when the price remained the same.

C.
Part E represents a period when the price decreased at the fastest rate.

D.
Part E represents a period when the price decreased at a slower rate than in part C.

Answers

Answer:

D

Step-by-step explanation:

Part E represents a period when the price decreased, but slower than C. C is a very steep line which means it decreased faster.

Solve for x.
2x + 45 = 2x + 45

Answers

Answer:

0 is the answer

Step-by-step explanation:

so ez but nice try

HELP!!! ALGREBRA!!! FACTORING!!!

Answers

Answer:

The 3rd from the right

(d+6)(d-6)

Step-by-step explanation:

I’m pretty sure it’s yellow

Domain and range pls

Answers

Definition is

The domain of a function is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes. They may also have been called the input and output of the function.)

Answer:

domain = -7<x  range= 0<y

Step-by-step explanation:

This is another question i need help with.

Answers

Answer:

C, this diagram will show 2 1/3- 2/3 which is 7/3-2/3 which is 5/3 which is 1 2/3

Step-by-step explanation:

The answer is C! Hope this helps

the problems are in the pictures

Answers

Answer:

6. B) 115

7. B) 180 - (180 - 90 + 30) = x

Step-by-step explanation:

6. B - 117
7. B 180 - (180-90+30) = x

Indicate whether the sentence or statement is true or false.

This figure is a polygon:


Please select the best answer from the choices provided

A. T
B. F

Answers

Answer:

B. false I'm built different

b. can i have brainliest

PLEASE HELP ASAP!!!

Answers

C is the answer have a great day

please help asap im confused

Answers

The answer is the second row. B

Whatss the Median??????????????????????///

Answers

The median is the middle point in a dataset half of the data points are smaller than the median and half of the data points are larger. To find the median Arrange the data points from smallest to largest. If the number of data points is odd the median is the middle data point in the list.

Translate each verbal phrase into an algebraic expression:
1. The sum of N and 6 is less than 2.

2. The value X n is greater than 12.

3. The value of P is at most 15.

4. R multiplied by 11 is greater than or equal to 33.

5. 5 subtracted from N is at most 18.

Answers

Answer:

1) N+6<2

2) Xn>12

3) P≥15

4) R times 11≥33

5) 5-N≥18

I think this is the answer :)

Step-by-step explanation:

1.) N+6 < 2
2.) Xn > 12
3.) P < 15 (underline the “<”)
4.) 11R > 33 (underline the “>”)
5.) N-5 < 18 (underline the “<”)

***IT IS VERY IMPORTANT THAT YOU UNDERLINE THE SIGN WHEN STATED OR ELSE THE EQUATION WILL BE INCORRECT BECAUSE THE UNDERLINE SIGNIFIES THAT IT MEANS (less/greater) THAN OR EQUAL TO...

I need help with this please

Answers

A. You would turn it into a fraction and divide the numeratoe by the denominator and the denominator by the denominator.


Ex.: 27,000/5000 divided by 5000 27000 becomes 5.4 and 5000 becomes 1 so $5.4/book.

B. Option A= $5.4/book
Option B= $4/book
Option C= $3.123.../book

So option C would be the best plan since it has the lowest cost per book!
C is the correct anwser

a 29 foot rope is cut into 2 pieces. the longer feet is two feet longer than twice the shorter piece. how long is each piece? PLS ANSWER

Answers

Answer:

the short piece is 9 feet and the long piece is 20 feet

Step-by-step explanation:

29-x=2x+2

27=3x

x=9

29-9=20

A juice factory offers its juice in both bottles and cans. A class of students on a field trip decides to compare the numbers of cases of bottled juice and canned juice that are packaged each minute. The students count the number of cases that are packaged on each assembly line over several minutes.

What is the unit rate for canned juice, in cases per minute? Explain how you found this unit rate.

Answers

Answer: 50 cases per minute

Step-by-step explanation:

1. Select one of the points on the graph. Let's use (2, 100) in this case.

2. Divide the number of cases (y) by the amount of minutes (x) This means the equation would be 100 ÷ 2.

3. Since 100 cases ÷ 2 minutes = 50 cases per minute, that means that is unit rate, which can be expressed by y = 50x or f(x) = 50x.

50 cases per minute. Hope this helps

help please lol i really need it

Answers

Answer:

its c

Step-by-step explanation:

The answer is C.

The volume of the box Jamie wants to pack in is V=4x3x5=60ft^3

The volume of the big box is V=5x8x4=160ft^3

Let’s check how much is left over.
V(left over)=160-60=100ft^3 (it will fit)

a. 35
b. 22
c. 14
d. 13

Answers

count tally marks and it adds up to 22

Answer:

B. 22

Step-by-step explanation:

You just add the total amount of people that have dogs which is 12 with the total amount of people that have cats which is 10 so the total amount that have dogs and cats as pets is 22 because 10 + 12=22

The temperature in Salt Lake City was -10.6°C. Which absolute value equation best describes how many degrees the temperature was below 0°C?
A) |-10.6| = -10.6
B) |-10.6| = -10
C) |-10.6| = 10
D) |-10.6| = 10.6

I have a feeling that it’s D but at the same time, A...

Repost, links = report to moderators

Answers

The answer to the question is D.
The answer is D to this question

Help for lots of points

Answers

Answer:

45

Step-by-step explanation:

i hope this helps you :) i would do the middle one but you dont need that one

Answer:

its 45

Step-by-step explanation:

Enter two equations that state the relationship of the distances between the three towns. Use x as the variable.

Answers

It’s 17 and 24 and 6

guess my favorite color for brainliest/brainiest ! u can pick 3 times

Answers

Answer:

IՏ IT ᗷᒪᗩᑕK, ᗷᒪᑌᗴ Oᖇ ᘜOᒪᗪ? ᵗʰᵒˢᵉ ᵃʳᵉ ᵐʸ ᶠᵃᵛ ᶜᵒˡᵒʳˢ

Okkkkkk here goes nothing

1. Purple/Violet
2. Turquoise or like a green-blue
3. Red

You work at a restaurant that has 20 tables. Each table has a set of salt and pepper shakers on it that are in the shape of square pyramids? How much salt do you need to fill all the salt shakers ? Please help, this is the last question

Answers

Answer:

2x3x20=120 salt things

Step-by-step explanation:

2x3x20=120 that’s the answer! :)

GIVING BRAINLIEST IF CORRECT

Answers

Model A is
- 1 2/3 and 5/3

Model B is
- 2 1/3 and 7/3

PLZ help me I really need this for work, scene my class isn´t helping me so plz help me

Answers

0.05 this is the answer for anyone that needs it

A square quilt has an area of 34 ft2. What is the APPROXIMATE length of one side, to the nearest tenth?

Answers

Answer:

One side of the quilt is 5.8 feet.

Step-by-step explanation:

[tex]\sqrt[]{34}[/tex] = 5.83095189485

5.83095189485 is 5.8 to the nearest tenth.

Please answer ASAP I will gave brainliest to best answer

Answers

Answer: the next one is a triangle with a  square inside

i think

I WILL GIVE BRAINLIEST!!!!

Answers

Answer:

53.12ft

Step-by-step explanation:

Area of triangle:

The formula to find the area of a triangle is 1/2bh

- We plug in the values given.

1/2 x 8 x 7

Which is 28ft.

Area of semicircle:

The formula to find the area of a semicircle is 1/2[tex]\pi[/tex][tex]r^{2}[/tex]

- We plug in the values given

1/2 x [tex]\pi[/tex] x [tex]4^{2}[/tex]

1/2 x 16[tex]\pi[/tex]

8[tex]\pi[/tex] or 8 x 3.14 = 25.12

                    In order to get the total area of the whole shape we need to add the areas of those two, which will be 25.12 + 28 = 53.12

Answer will 53.13!!!!!!

picture of the question below

Answers

6x6x10=360 you have to multiply all sides
To answer this you must split the shape into 2 other shapes at least this how I do it

First do the square 6x6=36
Then do the 2 triangles
3x10=30
(Normally you would divide the answer by 2 since a triangle is half of a square but since there is another triangle this is not needed)
After that add the area of the square to the area of the 2 triangles and your answer is 66

The table shows students’ favorite subjects in Mrs. Boggs’ class.

What is the ratio of students who prefer Math to students who prefer Social Studies?

Answers

Answer:

I want to say 5-4 but I COULD BE WRONG

Step-by-step explanation:

Look at how many people chose Math and Social studies

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