Mathematics High School

Simplify the following expression.
3(2x+7)

Answers

Answer 1
solution: 6x + 21
3(2x + 7)
3 • 2x • 3 • 7
6x + 3 • 7
6x + 21
Answer 2
3(2x+7) = (3)(2x+7) = (3)(2x)+(3)(7) = 6x+21

Related Questions

F10
Find the gradient of the line segment between the points (-2,-2) and (0,-6).
2

Answers

Answer:

-2

Step-by-step explanation:

M = (y - yo/x - xo)

(-6 + 2) / (0 + 2)

-4 / -2

= - 2

1 markers cost $7.04
Which equation would help determine the cost of 7 markers!

Answers

the answer to the question is A

2) Find the volume of a container that measures 4 inches long,
5 inches high, and 8-inches wide.

Answers

Answer:

160 inches

Step-by-step explanation:

4*5*8=160

Subject:Mathematics ​

Answers

The answer is A/the first one, I hope this helped

Pls answer b and c for my brother

Answers

Answer:

B and C

Step-by-step explanation:

Answer:

this was hard

Step-by-step explanation:

1b. 7 1/2

2b. 9 3/4

3b. 6 1/2

4b. 2 2/3

5b. 3 1/3

6b. 9 3/4

7b. 8 6/7

8b. 5 2/3

9b. 3 3/5

10b. 28

1c. 8 4/5

2c. 8 2/3

3c. 5 2/3

4c. 2 1/3

5c. 5 1/2

6c. 2 3/7

7c. 7 4/5

8c. 8 1/2

9c. 2 3/4

10c. 122

PLEASE HELP!!! THIS IS DUE TODAY!

A three-bedroom house in Burbville was purchased for $210,000. Housing prices are expected to increase 2% annually in that town. Find the price of the house in 5 years. Show your equation (2 points), and then your answer (2 points).

Answers

Answer:

qjavaivsjsjajjsnssjskksjskskmamaansxbxk

Answer: y=210000(1+0.02)^5

y=231856.97

Step-by-step explanation:

210000 is the total cost and it increases by two percent and its asking how much it will be in 5 years so when you plug in the equation you should get y=231856.97.

Hope this helped

In this triangle, what is sin 30°? What is sin 60°? What is the product of sin 30° and sin 60°?

Answers

Answer:

1800

Step-by-step explanation:

60.30= 1800

The correct answer is 1800

What is the multiplicative inverse 23/7?​

Answers

Answer:

7/23

Step-by-step explanation:

SOLVE PLEASE!!!

A. If a person bikes .24 miles in 1 minute, how far can he bike in 90 minutes?

B. A store sells notebooks at 2 for $4.72. Mrs. Johnston needs to buy 11 for her 3rd period class. How much will she have to pay for all of them.


Please solve a AND b BOTH OF THEM THEN YOU'LL GET 100 points plus the drown.

Answers

Answer: A.1.5 hours = 90 minutes

B.2.4 x 9= 21.6 miles

Step-by-step explanation:

HELP DUE IN 10 MINS!

Are the following triangles congruent? If so, identify the postulate and finish the congruent statement.

If they are not congruent or there is not enough information, then write not possible in each blank.


Postulate:

Congruence Statement: ΔTIG ≅ Δ:

Answers

Answer:

No

Step-by-step explanation:

Given is the two angles congruence but this is not enough to prove the congruence of the triangles.

Postulate: Not possible

Congruence Statement: Not possible

Find 3x-y-3z if x=-2, y=1, z=-2

Answers

Answer:

-

Step-by-step explanation:

Answer is - 1 , but can't show work with smart phone. Don't own computer.

Use my head for most numbers. Sorry

Help me I have a Timer

Answers

Answer:

14 x 10^6

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
1.4×10^7

Blue box: 1.4
Exponent/Orange Box: 7

Write the ratio 5 to 8 as a fraction, decimal and percent.
omg please help

Answers

Answer: 5:8, .625, 62.5%

Step-by-step explanation:

5 to 8 is already a ratio. Then all you have to do is divide it. Then to get the percentage, move the decimal point over to the right 2 places.

Explain how you would solve the equation. Justify each step.
d ÷ 9 = 8

Answers

first you do 9 x 8 which equals 72 and 72 divided by 9 equals 8 so it is 72.

What is the value of x?
55
105
A. 55
B. 500
C. 160°
D. 200

Answers

Answer:

c

Step-by-step explanation:

HELP I NEED HELP ASAP

Answers

Last one lose .05 mL

Evan measured a line to be 17.5 inches long. If the actual length of the line is 16.7
inches, then what was the percent error of the measurement, to the nearest tenth of a
percent?

Answers

Answer:

3.6%

Step-by-step explanation:

( sorry for commenting, I need points to ask questions I dearly apologize!)

ABC is a straight angle.
Find ABX and CBX .

Answers

Answer:

Step-by-step explanation:

14x+70+20x+8 =180

34x + 78 = 180

34x = 102

X = 3

ABX 14(3)+70 = 112

CBX = 20(3) +8= 68

A woman put $580 into a savings account for one year. The rate of interest on the account was 6½%. How much was the interest for the year in dollars and cents? (Round to the nearest cent)

Answers

Answer:

Step-by-step explanation:

principal amount by women for savings = $ 580

duration = 1 year and rate of interest on it = 6 .1/2 % = 13/200

now amount of interest she'll be earning = $580 x 1 x 13 /200 = $37.7

thats  37 dollar 70 cents

What is the value of z?

Answers

answer is z=17

hope that helped loll

Answer:

17

Step-by-step explanation:

30+31=61

180-61=119

119/7=17

PLEASE HELP DUE IN 15 MINS​

Answers

Answer:

22) 3 in<x<11 in

23) 8 cm<x<26 cm

24) 0 ft<x<10 ft

25) 9 m<x<31 m

26) 2 km<x<14 km

27) 13 in<x<61 in

Step-by-step explanation:

It has to be greater than the difference and smaller than the sum.

22) 7-4=3, 4+7=11, so the answer is 3<x<11

23) 8<x<26

24) 0<x<10

25) 9<x<31

26) 2<x<14

27) 13<x<61

Suppose you are facing north, each time you turn, you are going to turn 90 degrees. If you turn 2 times to the right, 1 time to the left, 3 times to the right, 2 times to the right, and 1 time to the left, which way are you now facing?

Answers

Answer:

East

Step-by-step explanation:

Starting position = North

Condition = each time you turn, you are going to turn 90 degrees

Using the image attached as a guide;

If you turn 2 times to the right

- Turning the first time to the right changes the direction to East

- Turning the second time to the right changes the direction to South

1 time to the left

- Turning once to the left changes the direction to East

3 times to the right

- Turning the first time to the right changes the direction to South

- Turning the second time to the right changes the direction to West

- Turning the second time to the right changes the direction to North

2 times to the right

- Turning the first time to the right changes the direction to East

- Turning the second time to the right changes the direction to South

1 time to the left

- Turning once to the left changes the direction to East

If your phone cord is wrapped up in a rectangle that is 2x1 feet, how far can it reach?

Answers

Answer:

6 feet

Step-by-step explanation:

You are basically finding the perimeter of this rectangle.

2+2+1+1 = 6

8 pens cost £4.72
How much would 13 pens cost?

Answers

Answer:

$7.67

Step-by-step explanation:

So if 8 pens cost $4.72, one pen would cost $0.59. 0.59 x 13 will be equal to 7.67.

Answer:

13 pens would cost £22.

Step-by-step explanation:

8 divided by 4.72 is equal to 1.70 (Estimated)

13 times 1.7 is equal to 22 (Estimated)

Not Estimated

8 divided by 4.72 is equal to 1.69491525424

13 times 1.69491525424 is equal to 22.0338983051

Write an equation that could be used to find how many miles a hybrid suv can travel in the city on 20 gallons

Answers

Answer:

m=36×20

Step-by-step explanation:

A hybrid SUV uses 36 miles per gallon in the city.

The equation that could be used to find how many miles a hybrid SUV can travel in the city on 20 gallons of gas is m=36×20.

Which of the following operations will not change the value of any non-zero number?

a. Adding 1
b. Dividing by 0
c. Multiplying by 1
d. Multiplying by 0

Answers

c is the answer to your question

Which relationship between x and y in the equation shows a proportional relationship?

A y=x/2 + 3
B y = 2x + 6
C y = 12x
D y=12/x

Answers

Answer:

the answer is c

Step-by-step explanation:

at least they got a relationship

7 Lanza is a gardener.
She has this plan of a garden.
9m
8m
Lanza needs to put grass turf to cover this garden.
She charges £16 a square metre to put grass turf in a garden.
Lanza thinks she will need to charge more than £800 to put grass turf in this garden.
Is she correct?
Show why you think this.​

Answers

Answer:£872

Step-by-step explanation:

There is 1/ 3 gallon of water in a 3-gallon container. What fraction of the container is filled?

Answers

Step-by-step explanation:

2/3 gallons is empty

1/3 gallons is filled

so

3*1/3= 1

1 gallon filled

Answer:

1/9

Step-by-step explanation:

if it is only 1/3 of 1 gallon, then multiply 3 by 3 to get 9, then you have 1/9

please help!! will mark brainlyest

Answers

3 is the best Anwser to choose
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