Mathematics High School

Which expressions are equivalent to 5(x + 7) + 7(x + 5)
Please help

Answers

Answer 1

Answer:

D. You got it right :)

Step-by-step explanation:

Distribute:

=(5)(x)+(5)(7)+(7)(x)+(7)(5)

=5x+35+7x+35

Combine Like Terms:

=5x+35+7x+35

=(5x+7x)+(35+35)

=12x+70

Related Questions

What is AC? Brainiest for answer

Answers

Answer:

air conditioning

also, "all clear" on a calculator

Step-by-step explanation:

is this suppose to be a math question HAHAHA if not then it should stand for air-conditioner I think

what is the simplest form of 60 : 120?

Answers

Answer:

1 : 2

Step-by-step explanation:

60 is 60 x 1, and 120 is 60 x 2

60x2=120 hence the ratio is 1:2

What rotation is shown below?

Answers

Answer:

90 around the origin

Step-by-step explanation:

Here is the answer

It’s either -90 or 90 I’m pretty sure it’s just 90

Please help with this one

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The answer will be A-1188 in²

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Mary invests £1200 in a savings account. The account pays 1.5% compound interest per year. Work out the value of her investment after 2 years.

Answers

Answer:

CI=P[(1+r/100)^n-1]

=1200[(1+1.5/100)^2-1]

=1200*0.030225

=36.27

Subhash sold his digital camera for 8820Rs/- ,at a loss of 1280Rs/- . What is the cost price the digital camera?

Answers

Answer:

Rs. 10,100

Step-by-step explanation:

Sale price = 8820

Amount Lost on sale = 1280

The cost price of the camera:

Amount at which camera was sold + amount lost at that sale price

Rs. 8820 + Rs. 1280

= Rs. 10,100

Hence, cost price of camera was Rs. 10,100

Enter the number that belongs in the green box,
Please helppp

Answers

It’s 2. All the sides are congruent

what is the answer to 4(d+7);d= -2

Answers

Answer:

Step-by-step explanation:

4(d+7)

Let d= -2

4 ( -2 +7)

Parentheses first

4( 5)

Multiply

The distance between two towns on a map is 9 centimeters.The actual distance between two towns is 63 kilometers. What is the scale on the map?

Answers

Answer:

1 : 700 000

Step-by-step explanation:

63 km = 6 300 000 cm

Make it a proportion:

9 cm - 6 300 000 cm

1 cm - x cm

x = [tex]\frac{6 300 000 * 1}{9}[/tex] = 700 000 cm

Here we get that in map 1 cm represents 700 000 cm in reality, so the scale is 1 : 700 000

Which points are solutions to the linear inequality y < 0.5x + 2? Select three options. (–3, –2) (–2, 1) (–1, –2) (–1, 2) (1, –2)

Answers

Answer:

A.C.E

Step-by-step explanation:

The points which are solutions to the linear inequality, y < 0.5x + 2 are; (-3, -2), (-1, -2) and (1, -2)

Solution of inequalities

By testing the point values; we have;

For (–3, –2);

-2 < 0.5(-3) + 2

-2 < 0.5 .....TRUE

For (–2, 1);

1 < 0.5(-2) + 2

1 < 1 ..... FALSE

For (–1, –2);

-2 < 0.5(-1) + 2

-2 < 1.5 .....TRUE

For (–1, 2);

2 < 0.5(-1) + 2

2 < 1.5 ..... FALSE

For (1, –2);

-2 < 0.5(1) + 2

-2 < 1.5 .....TRUE

Read more on solutions to inequalities;

https://brainly.com/question/12371526

Someone help me please

Answers

14/50 = 7/25
CosX = adjacent side of X/hypotenuse of X = 14/50 = 7/25

HELP. Pleaseee. I have no idea what this means.

Answers

Answer:

Step-by-step explanation:

roots are the intercepts at the x axis I believe

Help! Please! I need help

Answers

the answer is 13
since it goes up by 4 you would add the previous number (9) and 4 getting 13

If a person's speed doubles and all else remains the same, what will be the person's angular momentum

Answers

Answer:

The person's angular momentum will be double

Step-by-step explanation:

Let

Speed of person=v

Mass of person=m

Radius=r

Speed of person=2v

We have to find the person's angular momentum when the speed of person is double and all else remains same.

We know that

Angular moment ,L=mvr

Using the formula

Angular momentum of person when speed 2v

L'=m(2v)r

[tex]\frac{L'}{L}=\frac{m(2v)r}{mvr}=2[/tex]

[tex]L'=2L[/tex]

Hence, the angular moment of person will be double when the speed of person is double.

Select all the equations that are equivalent. 52 = 8n + 4 4(2n + 1) = 52 4 = 52 – 8n 4n = 48 n = 6

Answers

Answer:

52 = 8n + 4

4(2n + 1) = 52

4 = 52 – 8n

n = 6

Step-by-step explanation:

52 = 8n + 4

52 - 4 = 8n

48 = 8n

n = 48/8

n = 6

4(2n + 1) = 52

8n + 4 = 52

8n = 52 - 4

8n = 48

n = 48/8

n = 6

4 = 52 – 8n

4 - 52 = -8n

-48 = -8n

n = -48/-8

n = 6

4n = 48

n = 48/4

n =12

n = 6

52 = 8n + 4 is equivalent to 4(2n + 1) = 52 is equivalent to 4 = 52 – 8n is equivalent to n = 6

Joyce is running a half-marathon, which is 13.1 miles long.

Question 1
Part A

Write an equation that shows the number of miles y she has left after running x miles.
Part B

If Joyce has already run 9.7 miles, how many miles does she have left?

Enter the correct answer in the box.

Answers

y = 13.1 - x

y = 13-1 - 9.7
y = 3.4

How much money will there be in an account at end of 10 years if $3000 is deosited at 6% annual interest interest comounded as follows:

Answers

Answer:

●3000000000000000000000000●

Step-by-step explanation:

●

what does a⁵×a³ equal?

Answers

Step-by-step explanation:

[tex] {a}^{5} \times {a}^{3} \\ = {a}^{5 + 3} \\ = {a}^{8} [/tex]

Hope it will help :)

Answer:

a⁵×a³=a⁸

because if base is same than the exponents can add

How is 0! (zero factorial) equal to 1 (mathematical proof)?

Answers

Answer:

What it means is that you first start writing the whole number n then count down until you reach the whole number 1. For the equation to be true, you must force the value of zero factorial to equal 1, and no other. ...

Step-by-step explanation:

Because while doing n!, you first start writting the number n then count down until you reach the writting 1

That's why, even if its 0! you still write the number 1.

define nature

have a great day

Answers

Answer:

Nature : The phenomena of the physical world collectively, including plants, animals, the landscape, and other features and products of the earth, as opposed to humans or human creations. (according to Oxford Dictionary)

can someone please tell me the answer?

Answers

d, it has a right angle which is a 45 degree angle and that is not listed on the options. hope this belay

Jan is making dinner. She uses 25 lbs of carrots in soup. She uses 3 of carrots in salad. About how many pounds of carrots did lan use in all?

Answers

Answer:

28 pounds of carrots.

Step-by-step explanation:

25+3=28

You are in charge of designing your soccer team’s shirts and have narrowed it down to two companies. Master Ink has a flat rate of $35 and charges $12 for each t-shirt printed. Totally Tee has a flat rate of $55 and charges $8 for every t-shirt.

Answers

Answer:

Step-by-step explanation:

Since there official question included with this, here is both equations and the point at which they equal the same amount.

Let x be every t-shirt printed.

Master Ink: 35+12x

Totally Tee: 55 + 8x

The point of which both equals the same (no matter how many shirts you buy) means that Master Ink = Totally Tee, therefore:

35+12x = 55+8x Solve

4x=20

x = 5

For the cost from both companies to be the same, you can buy 5 shirts. I would recommend Master Ink if you want to buy 5 shirts or less, and Totally Tee, for 5 shirts or more if you want to buy the cheapest offer.

(6x^2) (4x^2)
nd some help

Answers

Answer:

So, I solved it and I got this:

Simplify the expression.

24 x^ 4

Step-by-step explanation:

hope this helps! have a great day!

please help!! i need this asap

Answers

I would help but I cannot read it.

after subsituting what is the first step when evaluatingb 4y+9 over 7 when y=8

Answers

Well, after substituting, you write the value of y in place it, like this:
4(8)+9/7

Then solve it
32+9/7
(224+9)7
233/7

Find the value of x and y. pls help !!

Answers

not sure what y is but x is 40.6666

Tremaine scored 54 three-point goals, 84 two-point field goals, and 106 free throws in 23 games. How many points did he score on average per game

Answers

Answer: 18.96

Step-by-step explanation:

From the question, Tremaine scored 54 three-point goals, 84 two-point field goals, and 106 free throws. The total point scored will be:

=(54 × 3) + (84 × 2) + (106 × 1)

= 162 + 168 + 106

= 436 points

The number of points scored on average per game will then be:

= 436 / 23

= 18.96 points per game

30-60-90 triangle.. find the value of x?

Answers

Answer looks probably like a

Find the value of both variables. Round to the nearest tenth.
30
w
45
44°
to
w=
type your answer...
degrees; x= type your answer...
degrees

Answers

Answer:
W=~20.8
X=~62.5 degree
Solution:
Soh, Cah, Toa
[Left Triangle] 30=hypotenuse, W=opposite
Sin(angle)=o/h
Sin(44)=W/30
Sin(44)*30=W
W=20.8
[Right Triangle] W=20.8=adjacent, 45=hypotenuse
Cos(x degree)=a/h
Cos(x)=20.8/45
x=arc cos (20.8/45)
x=62.5

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Which expressions are equivalent to 5(x + 7) + 7(x + 5) Please help

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Which expressions are equivalent to 5(x + 7) + 7(x + 5)
Please help