Mathematics High School

Which expression is equivalent to 4(2x +3)?

a.4 + 2x + 4 +3
8x + 12

c.8x + 3

d.
4 + 2x + 12

Answers

Answer 1

Answer:

c 8x+3 all you do is multiply 4 and 2 to get 8 and add an x

Related Questions

Number 4!!What is the cost of 80cm of copper pipe at €2 a metre?

Answers

Answer:

$1.6

Step-by-step explanation:

We need to find the cost of 80 cm of copper pipe at $2 a metre.

Cost of 1 metre = $2

80 cm = 0.8 m

It means,

0.8 m = $2 × 0.8

= $1.6

So, the cost of 80 cm of copper pipe is equal to $1.6.

PLS HELPP! :)

What is the radius with a circumference of 122 in?

Answers

Answer:

this is the answer r≈19.42in

because you radius with a circumference of 122in

and that's your answer

Step-by-step explanation:

hope it works

What do i do if i broke a girls heart and what to make it up to her?

Answers

Answer:

flowers?

Step-by-step explanation: hope this helps

Answer:

well tbh you can only make it up to her if she lets you and it depends if she even wants anything to do with you like at all after you have broken her heart you can try talking to her first and then go from there many get her flowers or like a teddy bear actually do both  if she will allow you to make it up to her do anything and everything possible to make it better if she lets you

Step-by-step explanation:

g(6)
find the function​

Answers

g(6) = (1/3)(6) + 3 because the expression you stated for g(x) simply has one third as the coefficient, i.e. it's a linear function--if something else was intended, you would have to include parentheses to control the PEMDAS evaluation.

Therefore g(6) = 5
and consequently f(g(6)) = f(5) = 6(5) - 3 = 27

help click all the questions

Answers

Answer:

B,B,C

Step-by-step explanation:

#1: Meat is usually in ounces, patties weigh not too much, but enough. reasonable estimate. #2: Oil is a liquid, used not too much in baking. #3: Must be equal to 16/5.

What is the variable in the expression below?
3y?

Answers

Answer
y
Explanation

In mathematics, a variable is a symbol or letter, such as "x" or "y," that represents a value.

What is the y-intercept of the following graph?





a. (-2,5)

b, (-1,0)

c. (-1,-2)

d. (0,-5)

Answers

I believe the answer is B: (-1,0)

how to find the rate of change of the inputs

Answers

Answer:

To find the average rate of change, we divide the change in the output value by the change in the input value.

Whats the vloumeeeee????>????!?!!??

Answers

Volume = (edge)^3

Let V = Volume of cube

V = 1_1/2 • 2 • 1_1/2

V = 9/2

Answer: 4.5

:) 1.5 x 1.5 x 2 = 4.5

Solve each problem. Round to the nearest tenth if necessary. Use 3.14 for π. What is the radius of a circle with a circumference of 15 cm? Show your work! I will be giving out brainliest!

Answers

Answer:

2.3

Step-by-step explanation:

First off, you start with the circumference formula which is 2(pi)r. Since we know our circumference, we can create the equation solving for r. so we have 15=2(pi)r. Now in order to solve for r, we need to transfer everything to the other side, meaning dividing by 2(pi). So 15/2(pi)=2(pi)r/2(pi). Since we are using 3.14 for pi, 3.14*2 is 6.28. 15/6.28 which is about 2.388 So the radius of the circle is 2.3 (rounded to the nearest tenth)

each of equal sides of an isosceles triangle is 4cm greater than its height .If the base of triangle is 24 cm ,calculate the perimeter and the area of the triangle​

Answers

Answer:-

192 cm²

Step by step explanation :-

Let us take the height be x , then its side = x + 4. Now half of base will be 12 cm .

According to Pythagoras Theorem :-

=> base² + perpendicular ² = hypontenuse ²

=> 12² + x² = (x+4)²

=> 144 + x² = x² + 16 + 8x

=> 8x = 144-16

=> 8x = 128

=> x = 128/8

=> x = 16 cm .

Hence the height of ∆ is 16 cm .So the area will be half the product of base and altitude.

= 1/2 * 16 cm * 24cm .

= 192 cm²

★ Hence the area of the triangle is 192 cm² .

PLEASE HELP! I WILL GIVE BRAINLIEST!
Which expression better represents the amount of money being subtracted?

Answers

Answer:

2.25-1.75=.50

HELP! EXPLAIN! BRAINLIEST, STARS, AND HEARTS IF CORRECT!

Answers

Answer:

x = 20

Step-by-step explanation:

8th grade math, please help.

Answers

Answer:

x=72 degrees

Step-by-step explanation:

180-108=72

it is 180 because a straight angle is 180 degrees.

then you subtract 108, which is an alternate interior angle, to get 72, which is an alternate exterior angle.

Answer:

x=72

Step-by-step explanation:

Since the whole angle is 180 you have to do 180-108 which you get 72.

Then since x and 72 are vertical angles they have to be the same so x=72

Find the product of (21.2)*(0.02)

Answers

(21.2)*(0.02) = 0.424

Hope this helps.
53/53 =0.424

Multiply 21.2 and 0.02 to get 0.424.

Help please! I really need it! please dont guess if you dont know, dont answer.....( this is basic geometry im just dum'b) part2

Answers

Step-by-step explanation:

alternative interior angles

Please help will give brainliest please

Answers

the answer to #1 is D and the answer to #2 is both B and E.

Answer:

1- c 75° 2- B and E

Step-by-step explanation:

1- 180- 30= 150 ÷ 2= 75°

Nos últimos meses, as FaKe News tomaram conta do mundo.Cite alguma notícia que você leu e depois descobriu que não era verdadeira.​

Answers

Answer:

wq3fergsefgedfgyhtrfedcsyhngfd

Step-by-step explanation:

Answer:

oh tilogo boy? Java is a very good ahold of the most common way that you're going to have a great the most popular of the best of all the way to the top left of this site may be the first place in the world to the public to see the new version provides a unique and special.

2/5 hours makes how many minutes?

Answers

Answer:

24 minutes

Step-by-step explanation:

60/5= 12

12 minutes = 1/5

12*2 = 1/5*2

24 = 2/5

2) Dorothy types 120 words per minute. How many words does Dorothy type in
1.75 minutes? *
150 words
180 words
200 words
210 words

Answers

Answer:

D (210)

Step-by-step explanation:

120 times 1.75 equals 210

Answer:

210 words

Step-by-step explanation:

120 x 1.75 = 210

Explain Combined Mean.​

Answers

Answer:

A combined mean is simply a weighted mean, where the weights are the size of each group. For more than two groups: Add the means of each group—each weighted by the number of individuals or data points, Divide the sum from Step 1 by the sum total of all individuals (or data points).

Answer: A combined mean is simply a weighted mean, where the weights are the size of each group. For more than two groups: Add the means of each group—each weighted by the number of individuals or data points, Divide the sum from Step 1 by the sum total of all individuals (or data points).

Step-by-step explanation:

can someone tell me all the answers for 2 - 5/6

Answers

Answer:

1.17

Step-by-step explanation:

1.16666666667 ,, i guess you round it off

Answer 1.7
You have to round this is the original answer 1.6666 and then round the then nearest number which is 7
1.7

HELPPPP ME PLZZZ

Micah wants to know the most common style of surfboard used at Breakers Point. He surveys surfers at Breakers Point between 8:00 A.M. and 12 P.M. Which of the following statements is true about Micah’s survey? Select all that apply


A. Micah will obtain a random sample by talking to as many surfers as possible.

B. The population for the survey is all people who surf at Breakers Point.

C Micah will not get a representative sample.

D.Micah's sample will be representative because anyone can surf at Breakers Point.

Answers

Answer:

B. The population for the survey is all people who surf at Breakers Point.

D.Micah's sample will be representative because anyone can surf at Breakers Point.

Step-by-step explanation:

hope it helps

The statements that are true are:

The population for the survey is all people who surf at Breakers Point.

Micah will not get a representative sample.

Options B and C are the correct answer.

What is random sampling?

It is the way of choosing a number of required items from a population given.

Each item has an equal probability of being chosen.

We have,

A.

Micah will obtain a random sample by talking to as many surfers as possible.

This statement is not necessarily true as Micah may not be able to talk to all the surfers at Breakers Point during the time frame mentioned. Additionally,

Randomly selecting surfers would result in a better representation of the population.

B.

The population for the survey is all people who surf at Breakers Point.

This statement is true, as the population of interest is the surfers at Breakers Point.

C.

Micah will not get a representative sample.

This statement is also true, as the survey is conducted only between 8:00 A.M. and 12 P.M, which may not be representative of all surfers at Breakers Point.

Additionally, there may be bias in the sample if Micah only surveys surfers at a certain location or time period.

D.

Micah's sample will be representative because anyone can surf at Breakers Point.

This statement is not necessarily true as not all surfers may surf at the same time or location, or have the same level of experience or preference for surfboard style.

Thus,

The population for the survey is all people who surf at Breakers Point and

Micah will not get representative sample statements are true.

Learn more about random sampling here:

https://brainly.com/question/12719656

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pls help plssssssss I really need answer​

Answers

Here is my answer, hope to help you

value of x!!!! THANKS LAST ONE!!!

Answers

Answer:

45

Step-by-step explanation:

If a train travels 165 km in 1 hour 50 minutes at a constant speed, calculate how far it could travel in 3 hours

Answers

330km in 3 hours
162 x 2= 330

The train travel 270 Km in 3 hours.

What is speed- distance?Speed = Distance/Time Distance = Speed X TimeTime = Distance / Speed

Given:

Distance = 165 Km

Time= 1 hour 50 min

        = 1 5/6 hour = 11/6 hour

So, speed= distance/ time

speed = 165 / (11/6)

           = 165 x 6/11

           = 15 x 6

          = 90 Km/ h

Then, In three hour the train travels

Distance= 90 x 3

Distance= 2700 Km

Learn more about Speed- distance formula here:

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Write the SLOPE INTERCEPT FORM of the equation of the line parallel to y=23x+19 through the point (6, 2). First to answer correctly gets brainliest!

Answers

Answer:

y = 23x - 136

Step-by-step explanation:

Since the lines are parallel, they have the same slope. So, the slope of the new line is 23 as well.

Now we have: y = 23x + b

plug in the points that are on this line (6,2) :

2 = 23 x 6 + b

2 = 138 +b

-136 = b

Line: y = 23x - 136

Can anyone relate? Lyke, its sooooo true

Answers

Answer:

Same

Step-by-step explanation:

I knowwww right, like same, sooo trueeee

% of 75 is 25
% of 4 is 7
% of 15 is 6

Answers

of means multiply! so-

x * 75 = 25 x = 33.3%

x * 4 = 7 x = 175%

x * 15 = 6 x = 40%

A council reviews the number of bedrooms in 40 houses located in the same area. The table shows the information gathered. Find the modal average number of bedrooms. Work out the mean number of bedrooms

Answers

Mode is the most frequent number, in this case, 3 bedrooms appears 15 times. As a result 3 is the mode.
Doing the mean, is the same as providing a weighted average of bedrooms, with the weights being the frequency a given number of bedrooms appears at. As such, I need to multiply each element of the first column with the respective element of the second column. For example, for 1 bedroom, I have 1 x5 = 5; for 2 bedrooms I have 2x10 =20; if we do this across all number of bedrooms, and then add it all up, we get 113. We then divide this 113, by the number of flats being surveyed ie 40. This gives an average (or mean) of 2.825

The modal average number of bedrooms is 3, while the mean number of bedrooms is 2.825.

What is Mean?

A mean is an arithmetic average of a set of observations. it is given by the formula,

Mean = (Sum of observations)/Number of observations

A.) The modal average number is a mode of a given data set. Now, if the mode of the given data is needed to be taken then we need to observe the row that has the highest frequency.

Therefore, the modal average number of bedrooms is 3.

B.) The mean number of bedrooms can be found as shown below.

Mean number of bedrooms = (1×5 + 2×10 + 3×15 + 4×7 + 5×3)/40

                                               = (5 + 20 + 45 + 28 + 15)/40

                                               = 113/40

                                               = 2.825

Hence, the modal average number of bedrooms is 3, while the mean number of bedrooms is 2.825.

Learn more about Mean:

https://brainly.com/question/16967035

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