7x + 5 (x+3)+ 4x + x + 2

Answers

Answer 1

7x + 5(x + 3) + 4x + x + 2 =

= 7x + 5x + 15 + 4x + x + 2 = 17x + 17

Answer 2

Answer:

17x + 17

Step-by-step explanation:

Give me Brainllest


Related Questions

Find the HCF of 30x²y²z³​

Answers

Answer:

The greatest common factor or highest common factor of any set of numbers is the largest possible number which divides both the numbers exactly. HCF of 24 ..

Step-by-step explanation:

Heyy Answer please and explain

Answers

Answer: V=37.5 cm³

Step-by-step explanation:

Formula

V=(πr²h)/3

Given

r=5/2=2.5 cm

h=6 cm

Solve

V=(πr²h)/3

V=(π(2.5)²(6))/3

V=(π(6.25)(6))/3

V=37.5π/3

V=37.5(3)/3

V=37.5 cm³

Hope this helps!! :)

Please let me know if you have any questions

Is (1,8) a solution to the system of equations 3x+y=9 2x+9y=20​

Answers

No I don’t think so cause I just calculated the answer

True or False: When conducting a survey of a group of people, you must interview every person in that population.

Answers

The answer to this is true

I have been stuck on the problem for so long. please help me:
What is the value of y in the solution set of the system of linear equations shown below?
y= -x + 12
4x - 2y = 36

A- 10
B- 8
C- 6
D- 2

Answers

Answer:

D-2

Step-by-step explanation:

You can use elimination to get the value of y. Move numbers to one side and x and ys to the other side. To use elimination, multiply the first equation with 2. You will get 2x+2y=24. add it with the equation below. y will be eliminated and you will get the value of x. X=10. Plug in x and get the y value. Y=2

the number of bacteria present in a culture after t minutes is given as b=10e

Answers

Answer:

Step-by-step explanation:

I have no clue I just need 5 pionts

0 3. The pentagon ABCDE is graphed on a coordinate plane with vertices A(0, 0), B(3,5),
pentagon's area?
25 sq. units
15 sq. units
40 sq. units

Answers

Answer:

Option A

Step-by-step explanation:

The complete question is

The pentagon ABCDE is graphed on a coordinate plane with vertices A(0, 0), B(3, 5), C(3, 8), D(8, 5), and E(8, 0). What is the pentagon's perimeter?

Solution -

We will find the length of all the sides of pentagon and then add them  

Length of AB = Sqrt ((3-0)^2+(5-0)^2) = Square root of 9+25 = 5.83

Length of BC = Sqrt ((3-3)^2+(8-5)^2) = Square root of 9 = 3

Length of CD = Sqrt ((8-3)^2+(5-8)^2) = Square root of 5^2+-3^2

= 5.83

Length of DE = Sqrt ((8-8)^2+(0-5)^2) = Square root of 25 = 5

Length of EA = Sqrt ((8-0)^2+(0-0)^2) = Square root of 64= 8

Perimeter=8+5+5.83+5.83+3= 27.66 units  =27.66 units

Option A

Answer:

40 sq. units

Step-by-step explanation:

PLS HELP I NEED THIS BY TOMORROW

Rearrange the parts of the parallelogram to form a rectangle. Find the area of ​​the parallelogram and the area of ​​the rectangle. How are the areas related?

Make a copy of the trapezoid to form a parallelogram. Find the area of ​​the trapezoid and the area of ​​the parallelogram. How are the two areas related?

Answers

When we do this, the base of the parallelogram has length b 1 + b 2, and the height is the same as the trapezoids, so the area of the parallelogram is (b 1 + b 2)*h. Since the two trapezoids of the same size created this parallelogram, the area of one of those trapezoids is one half the area of the parallelogram

What is 0.36 written as a rational number?

Answers

Answer:

If you mean what is the square root of 36, then the answer is 6.

6 × 6 = 36.

Remeber sqaure root means what two numbers multplied together equal another number. It is irrational when the number doesn't repeat or terminate.

Hope this helps!!

diameter 32 inches what is the raidus

Answers

Radius equals to diameter dived by 2

Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these batteries follows the normal probability distribution with a mean of 36 hours. hours and a standard deviation of 5.5 hours. As a part of its quality assurance program, Power +, Inc. tests samples of 9 batteries.
a. What can you say about the shape of the distribution of the sample mean?
b. What is the standard error of the distribution of the sample mean? (Round your answer to 4 decimal places.)
c. What proportion of the samples will have a mean useful life of more than 38 hours? (Round z value to 2 decimal places and final answer to 4 decimal places.)
d. What proportion of the sample will have a mean useful life greater than 34.5 hours? (Round z value to 2 decimal places and final answer to 4 decimal places.)
e. What proportion of the sample will have a mean useful life between 34.5 and 38 hours? (Round z value to 2 decimal places and final answer to 4 decimal places.)

Answers

Answer:

a) By the Central Limit Theorem, it is approximately normal.

b) The standard error of the distribution of the sample mean is 1.8333.

c) 0.1379 = 13.79% of the samples will have a mean useful life of more than 38 hours.

d) 0.7939 = 79.39% of the samples will have a mean useful life greater than 34.5 hours

e) 0.656 = 65.6% of the samples will have a mean useful life between 34.5 and 38 hours

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean of 36 hours and a standard deviation of 5.5 hours.

This means that [tex]\mu = 36, \sigma = 5.5[/tex]

a. What can you say about the shape of the distribution of the sample mean?

By the Central Limit Theorem, it is approximately normal.

b. What is the standard error of the distribution of the sample mean? (Round your answer to 4 decimal places.)

Sample of 9 means that [tex]n = 9[/tex]. So

[tex]s = \frac{\sigma}{\sqrt{n}} = \frac{5.5}{\sqrt{9}} = 1.8333[/tex]

The standard error of the distribution of the sample mean is 1.8333.

c. What proportion of the samples will have a mean useful life of more than 38 hours?

This is 1 subtracted by the pvalue of Z when X = 38. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{38 - 36}{1.8333}[/tex]

[tex]Z = 1.09[/tex]

[tex]Z = 1.09[/tex] has a pvalue of 0.8621

1 - 0.8621 = 0.1379

0.1379 = 13.79% of the samples will have a mean useful life of more than 38 hours.

d. What proportion of the sample will have a mean useful life greater than 34.5 hours?

This is 1 subtracted by the pvalue of Z when X = 34.5. So

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{34.5 - 36}{1.8333}[/tex]

[tex]Z = -0.82[/tex]

[tex]Z = -0.82[/tex] has a pvalue of 0.2061.

1 - 0.2061 = 0.7939

0.7939 = 79.39% of the samples will have a mean useful life greater than 34.5 hours.

e. What proportion of the sample will have a mean useful life between 34.5 and 38 hours?

pvalue of Z when X = 38 subtracted by the pvalue of Z when X = 34.5. So

0.8621 - 0.2061 = 0.656

0.656 = 65.6% of the samples will have a mean useful life between 34.5 and 38 hours

Write an expression representing the perimeter of the rectangle as the sum of the four side lengths.

Answers

Answer:

2x+ 2(x+4/5)

Step-by-step explanation:

Perimeter = 2l + 2w

l = x

w = x+4/5

Simplify 5 to the 2nd power * 5 to the 9th power

Answers

Answer:

Thee first one is 25 and the second one is 1,953,125

Step-by-step explanation:

You just times each one by five. If you want to simplify it tho it would be as the first one is 12,5 the second one is 976562.5. Hope it helps


5 to the 11th power. (2+9=11)
For exponents with the same base, we keep the same base and add the exponents

4) If the area of a triangle is
72 square feet and the base is 12 feet, what is the height?
Help ASAP

Answers

Answer:

The height is 12 feet.

Step-by-step explanation:

The formula for area of a triangle is 1/2 ⋅ b (base) ⋅ h (height).

Now let's plug in the numbers.

According to the word problem, the base is 12 feet.

As of now, our equation is: 1/2 ⋅ 12 ⋅ h

The only number times 1/2 that would give you an answer of 72 is 144.

12⋅12 = 144.

This means the height is 12.

And, 1/2 ⋅ 12 ⋅ 12 ⋅ = 72.

Because the area of the triangle is 72, 72 is the number we are looking for.

Therefore, the height is 12.

I really hope this made sense, it was a bit rushed.

Helpppppp me confused

Answers

Answer:

A = 4.5

B = 40.5

C = 4π or 12.566

D = 16

Step-by-step explanation:

A

6 x .5 = 3

3 x .5 = 1.5

1.5 x 3 = 4.5

B

12 x 3/4 = 9

1/2 (9)(9) = 40.5

C

8 x .25 = 2

π2² = 4π or 12.566

D

24 x 1/3 = 8

6 x 1/3 = 2

2 x 8 = 16

Don't you times by a thousand then times the answer
I got 60,000

Answers

Answer:

i think that's right

Step-by-step explanation:


[tex]if \: a = 3 + 2 \sqrt{2} .find \: a \times \frac{1}{a} [/tex]


Answers

Answer:

1

Step-by-step explanation:

Given that,

[tex]a=3+2\sqrt{2}[/tex]

We need to find the value of [tex]a\times \dfrac{1}{a}[/tex].

So,

[tex]=3+2\sqrt{2} \times \dfrac{1}{3+2\sqrt{2}}\\\\=\dfrac{3+2\sqrt{2}}{3+2\sqrt{2}}[/tex]

As numerator and dinominator is same. It means,

[tex]=\dfrac{3+2\sqrt{2}}{3+2\sqrt{2}}\\\\=1[/tex]

So, the value of the given expression is equal to 1.

a box of 8 marbles has 4 red,2 green and 2 blue marbles. If you select one marble, what is the probability that it is a red or blue marble

Answers

your answer should be 0.80

In the first week of​ July, a record 1,100 people went to the local swimming pool. In the second​ week, 100 fewer people went to the pool than in the first week. In the third​ week, 130 more people went to the pool than in the second week. In the fourth​ week, 350 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four​ weeks?

Answers

What????????????????

Suppose the graph of f(x)=x^2 is translated 3 units eight and 1 unit down. If the resulting graph represents g(x), what is the value of g(2.7)?

Answers

Answer:

The value of g(2.7) is 31.49.

Step-by-step explanation:

Translations of a function:

Suppose that we have a function f(x).

The translation of f(x) a units to the left is given by g(x) = f(x+a).

The translation of f(x) a units to the right is given by g(x) = f(x-a).

The translation of f(x) a units up is given by g(x) = f(x) + a.

The translation of f(x) a units down is given by g(x) = f(x) - a.

Suppose the graph of f(x)=x^2 is translated 3 units right and 1 unit down.

Three units right:

[tex]g(x) = f(x+3) = (x+3)^2[/tex]

One unit down:

[tex]g(x) = f(x+3) - 1 = (x+3)^2 - 1[/tex]

What is the value of g(2.7)?

This is g when [tex]x = 2.7[/tex]. So

[tex]g(2.7) = (2.7+3)^2 - 1 = (5.7)^2 - 1 = 31.49[/tex]

The value of g(2.7) is 31.49.

please help me out, im taking a test. ill give brainliest

Answers

Answer: you are cheating :(?

So I won't help u sorry

Step-by-step explanation:

What is the length of BC?
5
12
A.7
B.12
C.13
D.17

Answers

Answer:

its A. 7

Step-by-step explanation:

A florist uses 7 red roses for every 4 white roses in her bouquets. Select the ratio of white roses to red roses. Please select 3 answers. 4 : 7
4 to 7
7 to 4
4/7
7/4
7 : 4

Answers

Answer:

Step-by-step explanation:

7 red roses

4 white roses

the answer would be 4 to 7, 4/7, and 4:7

I hope this helps!

Find the quotient using long division

4x^2-11x+5/x-4

Answers

Step-by-step explanation:

hope this help and pls rate to make me recommended for answering many mathematics questions! have a great day

Look at the equation.

3+4(5−x)=19−4x+4

How many solutions does the equation have? Explain your answer.

Answers

Answer:

infinite solutions

Step-by-step explanation:

3+4(5−x)=19−4x+4

Distribute

3 +20 -4x = 19 -4x +4

Combine like terms

23 -4x = 23 -4x

Add 4x to each side

23-4x+4x = 23-4x+4x

23 =23

This is always true so there are infinite solutions

Ill gove brainlyist and 40 points pleaseee
Find the area of this triangle,
Round to the nearest tenth.
4 ft
37
10 ft
[? ] ft2

Answers

Answer:

12

Step-by-step explanation:

Hello There!

When we are given two side lengths and the included angle we use this formula to solve for the area

[tex]A=\frac{1}{2} absin(C)[/tex]

where a and b = the side lengths and c = the included angle

The triangle gives us the following information

side length - 10 ft

side length - 4 ft

included angle - 37

Given this information we plug it into the formula

[tex]A=\frac{1}{2} 4*10sin(37)\\10*4=40\\40sin(37)=24.07260093\\\frac{24.07260093}{2} =12.03630046[/tex]

Finally we round to the nearest tenth and get that the area of the triangle is 12ft²

ppppppppppppppppppppppppppppllllllllllllllllllllllllllllllllllllllllllllllllllllllllllzzzzzzzzzzzzzzzzzzz hheellpp

Answers

Answer:

12 because imagine 40 / 3  ok?   now what makes 160 40 x 4    so you do that for the button 4 x 3 please put heart

HELP A FRIEND IN NEED

Answers

Answer:

Angle A = 68 degree

Angle B = 44 degree

Step-by-step explanation:

Sum of all interior angles = Angle A+Angle B+ Angle C

180 = 68+x+x-24

180 = 68+2x-24

180-68 = 2x-24

112+24 = 2x

136/2 = x

68 = x

Therfore, Angle A = 68 degree

Angle B = (x-24)

= (68-24)

= 44 degree

Mark as brainliest.

Find the length of are ab

Answers

Answer:

20.97?

Step-by-step explanation:

Use the Sine rule!

The distance around a triangle is 34 centimeters. If two sides are equal and the length of the third side is 6 centimeters, what is the length of each of the other two sides?

Answers

Subtract 6 from the total then divide by 2.

34-6 = 28

28/2 = 14

The length of the other two sides are 14 cm each

34-6 = 28

28 divided by 2 = 14

So, the length of the two other sides is 14 centimeters.
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