Mathematics Middle School

what is the value of 2x^2-2(x+4) when x = 5?
A.–32
B. 24
C. 32
D. 40

Answers

Answer 1

Answer:

Algebra 1 Answer Key with notes.pdf go on that and there are the anwers and the answer key :)

Step-by-step explanation:

Answer 2

Answer:

b

Step-by-step explanation:

Related Questions

X Y
-7 0
0 1

What is the slope of the linear function represented in
the table?
*-7
07/1
01/1
07

Answers

answer: 1/7

the formula for slope is rise over run, or y1-y2 divided by x1-x2. we can choose either number as y1 or y2 but it needs to stay consistent with x

so let’s plug in from your table.

0-1 divided by -7 -0
(you could also do 1-0 divided by 0-(-7))

-1/-7 which equals 1/7

so, your slope is 1/7

I hope this helps! :)
Answer: 1/7 Step by step explanation

Fastest answer gets brainliest answer!

Leon is scuba diving at an elevation of −72
feet when his friend signals to come higher to see a sea turtle. Leon makes 3 ascents, each an equal distance, to reach an elevation of −18
feet, where the sea turtle is located.

What was Leon's elevation after his second ascent?

Answers

Answer: -36 feet

Step-by-step explanation:

72-18 = 54 feet ascended

54 feet / 3 ascents = 18 feet per ascent

18 feet * 2 ascents = 36 feet

-72+ 36 = -36 feet

After his second ascent Leon was at an elevation is -36. Step by step; 72-18= 54
54/3= 18, 18*2=36
72-36= 36

Subtract.

−145−(−278)

Enter your answer as a simplified fraction by filling in the boxes.

Subtract.145(278)Enter your answer as a simplified fraction by filling in the boxes.

Answers

Answer:

43/40 is your answer.

I HOPE IT WILL HELP YOU.

Thank you

^ - ^

- 187/40



I hope this helps?

Need answer as soon as possible please

Need answer as soon as possible please

Answers

1/3!

input is x, output y

y = 1/3x

The output is 1/3 of the input. x is the input, y is the output:

output = (1/3)input

y = (1/3)x

Which one of the following compounds have a subscript present? Choose all correct answers.



Group of answer choices

3CO

H3N2O

NO3

3NaCa

Answers

Answer:

NO3 3CO

Step-by-step explanation:

The subscript immediately following the end parenthesis indicates how many times that species appears in the compound. For example, the formula Ca(NO 3) 2 indicates that two NO 3 - (nitrate) ions are present in the compound Ca(NO 3) 2.

HOPE DIS HELP!!

Answer:

Step-by-step explanation:

they all do

a subscript is a word symbol or number slightly above

or below all of them have it

What is the mean of the data?

Weight of Dogs In the Pet Store
Stem Leaves
0 3, 8
1 0, 1, 4, 7,
2 2, 4, 5
3 5 0 | 3 = 3 pounds
4 0
17
22
19.5
19

What is the mean of the data?Weight of Dogs In the Pet StoreStem Leaves0 3, 8 1 0, 1, 4, 7, 2 2, 4, 5

Answers

Answer:

C. 19.5

Step-by-step explanation:

I'm 99.9% sure this is correct!

STOMP IF I'M WRONG!

have a good day/night!

It’s C!!!!!!!!!!!!!!!!

PLEASE HELP LOOK AT THE PIC

PLEASE HELP LOOK AT THE PIC

Answers

The answer is C his original price was 57

please hurry i will give brainlyist if its corcect

Answers

Answer:

what is the Question

Step-by-step explanation:

Answer: What's the question about?

Step-by-step explanation:

Use the below image for each part.







Find the surface area in square units.


360 square units


305 square units


300 square units


270 square units



What is the shape of the base of this prism?



What is the volume of this figure?
rectangle/square/trapezoid/Triangle

240 cubic units


260 cubic units


480 cubic units


520 cubic units

Use the below image for each part.Find the surface area in square units.360 square units305 square units300

Answers

Answer:

Surface Area=300 Volume=260 [the base is a triangle]

Step-by-step explanation:

12*8+13*8+12*5+5*8=96+104+60+40=200+100=300

5*8*13/2=5*4*13=20*13=260

A rectangle has a length of 2x+7 and a width of 3x+8.

Write and simplify an expression for the perimeter of that rectangle

pls help

Answers

Answer:

2x+7+3x+8=5x+15

A perimeter is a sum of lengths of sides of a lateral.

It would be 5x + 15. This is if you add the 2x and 3x it would be 5x. Then If you did 8 plus 7 is would be 15. The final expression would be 5x + 15

You pick a card at random. 6 7 8 9 What is P(divisor of 70)? Write your answer as a percentage. %

Answers

Answer:

Step-by-step explanation:

6.789x10 3 esta es la solución

Koda is solving 13 × 16.
He used an area model to help work through each step.

Which calculation did Koda make to get the highlighted partial product?

Koda is solving 13 16.He used an area model to help work through each step.Which calculation did Koda

Answers

3x6 or 6x3

6x3 equals 18 which is the highlighted number.

13 x 16 = 208
So 6 x 3 = 18
The answer is 18

3 ft 9 in + 4 ft =
ft
in

Answers

Answer:

7 ft and 9 inches

Step-by-step explanation:

Answer:

7 ft 9 inches

Step-by-step explanation:

3 ft 9 in + 4 ft = 7 ft 9 inches

All you have to do is add the feet with the feet and add the inches with the inches. They want you to add 3 ft + 4 ft, which is 7 ft. There are no inches to add to 9 in, so that just remains 9 in.

Therefore, your answer is 7 ft 9 in.

I hope this helps! Have a lovely day!! :)

A bakery is selling breakfast platters. A platter of 12 bagels costs $11.40. Additionally, it costs $7.25 for a gallon of coffee.

What is the slope of this situation?

0.95
0.55
7.25
11.40

Answers

Answer: A

Step-by-step explanation:

im pretty sure its A

Deanna borrowed $650 at 8% 0 simple interest. How much - 52 interest did she pay for 1 year?​

Answers

Answer:

i = ($650)(0.08)(1) = $52

Step-by-step explanation:

The formula for simple interest is i = prt.  Here p = $650, r = 0.08 and t = 1 (year).  Then the simple interest Deanna paid for this one year loan was

i = ($650)(0.08)(1) = $52

right answer to all 4 questions gets brainleist!! 1-if point (4, 8) is reflected across the X axis, what are the new coordinates? 2- if point (12, 18) is reflected across the Y axis, what are the new coordinates? 3- if point (-7, 10)is reflected across the Y axis, what are the new coordinates? 4-if point (-9, -15) is reflected across the x axis,what are the new coordinates?

Answers

Answer:

1.(-4,8)

2.(-12,18)

3.(7,10)

4.(-9,15)

Step-by-step explanation:

Answer:

1. (-4, 8)

2. (-12, 18)

3. (7, 10)

4. (-9, 15)

(I edited my response so ignore my self reply sorry lol)

Step-by-step explanation:

Question Evaluate 8x−y²−3 when x=−1/4 and y=3

Answers

Answer: -14

Step-by-step explanation:

Plug in the x and y value. 8(-1/4)-3^2-3

-2-9-3=-14

Answer:

-14

Step-by-step explanation:

six adult tickets to a movie at the theater cost $52.0. find the prince for one ticket.

Answers

Answer:

$8.666...

Step-by-step explanation:

52/6=8.66...

Dawg no way you needed help with this $52/6=8.66

Help plssssssss
Answers:

9/6 = 11.25/LM
9/6 = LM/7.5
6/9 = LM/4.5
6/9 = 4.5/LM
(It's also multichoice so choose 2 answers.)

Help plssssssssAnswers:9/6 = 11.25/LM9/6 = LM/7.56/9 = LM/4.56/9 = 4.5/LM(It's also multichoice so choose

Answers

The answer is 9/6, so the first two options
Explenation: you need the number to know what to multiply 4.5 by
9/6 is the answer cause you need to multiply by 4.5

Freidy is practicing for the marathon. It takes him 1.75 hours to run 12.25 miles. At this rate, how long will it take you to complete the 26.2-mile marathon (round your answer to the nearest hundredth)?

Answer and explain ferly full brainliest

Answers

Answer:

It would take him about 3.7 hours to run 26.2 miles because he can run 7 miles per hour and 26.2/7 is 3.7....

Step-by-step explanation:

hope this helps :)

It will take him about 3.7 hours

if giselle had five books sets and gave 9 books away and has 26 left how many were in the bookset

Answers

Answer:

7 in each book set

Step-by-step explanation:

26+9= 35 (total # of books)

35/5= 7 ( # of books in a book set)

26 + 9 = 35
35 / 5 = 7
So the answer is 7 books per book set!
Hope it helps

The distance between the elementary school and the middle school is 4 miles. On the map, the two locations are One-half inch apart. What is the scale of the map?
1 inch = 8 miles
1 inch = StartFraction 1 over 8 EndFraction mile
One-half inch = 1 mile
4 inches = 1 mile

Answers

1 inch = 8 miles

1/2in + 1/2in = 1in

4 + 4 = 8

1 Inch = 8 miles

I know this because half of 8 is 4 and that is the distance between the locations

another math question

another math question

Answers

Answer: .50 cents

Step-by-step explanation:
We can model the function by subtracting one number over another. \(9.70-9.20=.50\)
This gives the additional charge per minute.

Greta, who is in seventh grade, asks her classmates Pete, Rob, Mark, Maria, and Sharon about their favorite books. Four of the five say their favorite book is The Adventures of Huckleberry Finn. From this data, Greta concludes that most seventh-grade students like this book.
Greta’s sample is
. The generalization made from the sample is
.

Answers

Answer: Most seventh grade students.

Step-by-step explanation:

Greta's sample is 5

Need help ASAP its due soon

Need help ASAP its due soon

Answers

Answer:

720

Step-by-step explanation:

When you multiply 12 by 6, you get 72, and in this case, it will end up being 720 to correspond with the way it is set up.

Determine whether each point appears on the line with the given slope and y−intercept. Select Yes or No for each point.

slope = −3 y−intercept = 10

Determine whether each point appears on the line with the given slope and yintercept. Select Yes or No

Answers

Answer:

(0, 10)  = YES

(1, 7) = YES

(2, 4) = YES

(2, -6) = NO

(1, 10) = NO

(3, 1) = YES

Step-by-step explanation:

Given

slope = m = -3

y-intercept = b = 10

We know that the slope-intercept of line equation is

\(y = mx+b\)

where m is the slope and b is the y-intercept

substituting m = -3 and b = 10 in the slope-intercept of line equation

y = mx+b

y = -3x + 10

Thus, the equation of line is:

y = -3x + 10

Now let us check all the points to determine whether each point appears on the line with the given slope and y−intercept.

For (0, 10)

y = -3x + 10

10 = -3(0) + 10

10 = 0+10

10 = 10

True

Yes for (0, 10)

For (1, 7)

y = -3x + 10

7 = -3(1) + 10

7 = -3 +10

7 = 7

True

Yes for (1, 7)

For (2, 4)

y = -3x + 10

4 = -3(2) + 10

4 = -6 + 10

4 = 4

True

Yes for (2, 4)

For (2, -6)

y = -3x + 10

-6 = -3(2) + 10

-6 = -6 + 10

-6 = 4

False

No for (2, -6)

For (1, 10)

y = -3x + 10

10 = -3(1) + 10

10 = -3 + 10

10 = -7

False

No for (1, 10)

For (3, 1)

y = -3x + 10

1 = -3(3) + 10

1 = -9 + 10

1 = 1

True

Yes for (3, 1)

Summary:

(0, 10)  = YES

(1, 7) = YES

(2, 4) = YES

(2, -6) = NO

(1, 10) = NO

(3, 1) = YES

0,10 = no is the answer

what is 8^{11} ÷ 8^{9}

Answers

Answer:

64

Step-by-step explanation:

Answer: 64

Step-by-step explanation: I don't know how to do the step-by-step, but it's quite easy.

what is the fraction that equals the problem below

what is the fraction that equals the problem below

Answers

Answer:

1/6

Step-by-step explanation:

2/4 times x = 2/24

Solve for x and you will get 1/6

Answer: 1/6

Step-by-step explanation:

Since 2 * 1 is just 2, all we need to do is to find the denominator. So we can just divide 4 from 24, and we get our answer, which is 6.

Which means the answer is 1/6.

what is 15x5 whimsyyyyyy

Answers

answer: (15)(5) = 75
The answer is 15x5 equals 75.

Yo can someone help me out

Yo can someone help me out

Answers

Answer:

100,000

Step-by-step explanation:

\(10^{5}\) = 10 × 10 × 10 × 10 × 10

10 × 10 × 10 × 10 × 10 = 100,000

100,000
You are supposed to multiply the main number by itself however many times the exponent is represented like 5 with an exponent of 2 would be 25 = 5 x 5 hope this helps
Other Questions
1a) CaloriNA Corp. wants to maintaining a profit margin of 9% and a dividend payout ratio of 34%. The company has a total asset turnover of 0.38. What is the debtequity ratio that is required to achieve the firm's desired rate of sustainable growth of 2.4%? Explain your steps.1b) What is the sustainable growth rate of the Mumu Melon Co. if the firms dividend payout ratio is 60%, total asset turnover is 1.40, profit margin is 5%, and equity multiplier is 1.75? Explain your steps. FILL THE BLANK. a condition characterized by a continual rise in prices for goods and services is termed ______. The Precambrian time began at least _____ million years ago.4,6005702456525 Which one of these is included in the yield of a bond with a low credit rating but not included in a U.S. Treasury bond yield? Assume both bonds are selling at a premium.a)Real rate of returnb)Inflation premiumc)Default premiumd)Loss of premium Let P(n) be the statement that a postage of n cents can be formed using just 4-cent stamps and 7-cent stamps. Here you will outline a strong induction proof that P(n) is true for all integers n18. (a) Show that the statements P(18),P(19),P(20), and P(21) are true, completing the basis step of a proof by strong induction that P(n) is true for all integers n18. (b) What is the inductive hypothesis of a proof by strong induction that P(n) is true for all integers n18? (c) Complete the inductive step for k21. Pls answer I'll give brainliest to whoever replies first An astronomer is 450 light years (1.y.) from star A and 400 1.y. from star B, as shown. Star A is 90 1.y.from star B.B400 l.y.90 l.y.Astronomer450 l.y.If the astronomer's telescope is currently pointed at star A, how many degrees must she rotate hertelescope to see star B?Do not round during your calculations. Round your final answer to the nearest degree. Assuming the market for office paper is perfectly competitive, the profit level for the firm in the long run would be $ _. (Only enter amount; the dollar sign has been provided for you.) Find the angle of w please Which statement best describes how human capital impacts production costs?A) An employer invests in technology training for his staff and immediately sees an increase in productivity that reduces his need to pay over time.B) A company hires one hundred new employees to help with a sales campaign but must lay off a third of them due to a human resources error.C) A company decides to provide all employees with company-paid insurance benefits to entice more people to work for the company rather than a competitor.D) An employer lays off half his staff due to his acquisition of an expensive technological device that changes the way his product will be manufactured to ensure uniformity. Clare would like to buy a video game that costs at least $130. She has saved $48 so far and plans on saving $5 of her allowance each week. Write an inequality to find out the number of weeks it will take until she has enough money to buy the game. What are two ways drawing with text is similar to drawing shapes? 21 ex. one third of the difference difference between 5 and y Antonio needed a loan worth 5,600. If the bank calculates interest at 3.1% compounded semi annually how much does he owe in 3years? Someone pls help!!!??? a =4 5b =3 2Work out a - 2b as a column vector. Select THREE characteristics of a democracy.-always assumes a confederate form of government-acknowledgement of peoples basic rights-ruled by a small group of leaders-rights handed over by citizens to the government-participation by the peopleconsent by the people to accept the governments actions (consent of the governed) Answer the following questions for brainliest and points Round your answer to the nearest hundredthAny help will be appreciated thank you Which climate zone in Australia is best suited for human habilitation.