3x+7x−28+31−8x for x=2043
The simplified expression is-
The value is-
AND
123−2x−3x+7 for x=5
The simplified expression is-
The value is-

Answers

Answer 1

Answer:

see below

Step-by-step explanation:

3x + 7x − 28 + 31 − 8x

Simplified:

  2x + 3

Value when x = 2043:

  2x + 3  

  2(2043) + 3

  4086 + 3

  = 4089

123 − 2x − 3x + 7

Simplified:

  -5x + 130

Value when x = 5:

  -5x + 130

  -5(5) + 130

  -25 + 130

  = 105


Related Questions

The Diameter Of a circle is 10 cm. find its area in terms of pi

Answers

Area = 1/2 x pi x diameter squared

A = 1/2 x 3.14 x 10^2

Answer = 78.54

Hope this helps. If it’s too confusing, I can simplify it.

Convert 5/6 into a decimal

Answers

Answer:

Divide the numerator, 5, by the denominator, 6, to express the fraction 5/6 as a decimal. You can do this on either a calculator or using long division by hand. The answer will equal 0.83333 with the number 3 repeating endlessly.

Step-by-step explanation:

We can write 5/6 into a decimal as 0.84.

What is decimal numeral system?

The decimal numeral system is the standard system for denoting integer and non-integer numbers.

Given is to write 5/6 into a decimal.

We can write 5/6 as a decimal below -

{x} = 5/6

{x} = 0.84

Therefore, we can write 5/6 into a decimal as 0.84.

To solve more questions on decimal, visit the link below -

https://brainly.com/question/4954886

#SPJ5

kevin and joe each manage a shop that sells CDs. Kevin’s shop is in the high street and Joes is in the rentail park.

Answers

Answer:

Number of CDs sold each day Frequency

0 – 10 10

11 – 20 34

21 – 30 24

31 – 40 13

41 – 50 7

51 – 60 12

If X is a random variable with expected value 2, then the expected value of 5X will be:______

Answers

Answer:

E(5X) = 10

Step-by-step explanation:

The expected value of a random variable X is denoted as; E(X)

Now we are told it's equal to 2.

Thus;

E(X) = 2

Now, we want to find the expected value of 5X

We will use the principle from expected value derivations below;

E(cX + d) = cE(X) + d

Also;

If E(X) = z

Then;

E(aX) will give; aE(X) = az

From our question, we have;

E(X) = 2

Thus;

E(5X) = 5E(X) = 5 × 2 = 10

If x-5=12, what is the value of x-9?

Answers

Answer

8

Step-by-step explanation:

5+12=17 and 17-9=8

Help me please
Which polygons are similar to palygon a

Answers

Answer:

I believe it's B because they look very similar

Which inequality is represented by the graph?
A. y > -2/3x+1
B.y < -2/3x +1
C.y < -3/2x +1
D.y> -3/2x +1

Answers

Answer:C

Step-by-step explanation:

The employees of a firm that manufactures insulation are being tested for indications of asbestos in their lungs. The firm is requested to send three employees who have positive indications of asbestos to a medical center for further testing. If 30% of the employees have positive indications of asbestos in their lungs, find the probability that eleven employees must be tested in order to find three positives. (Round your answer to three decimal places.)

Answers

Answer:

0.070

Step-by-step explanation:

Y = number on trial

Y has a negative binomial distribution

r = 3

P = 30% = 0.3 probability of positive indication.

P(Y = 11) probability of 11 employees that must be tested to get 3 positives

Y-1Cr-1*p^r*q^(y-r)

Y-1 = 11-1 = 10

r-1 = 3 -1 = 2

10C2 x 0.3³x0.7⁸

45x0.027x0.05764801

= 0.070

This is the probability that 11 employees must be tested to get 3 positives.

Which of the following is equal to the fraction below?
(5/9)^8

Answers

(5/9)^8=5^8/9^8.
Hope I’m right I don’t really know this stuff

In an office building, 39 offices are currently being rented. This represents 30% of the total units. How many offices are there in the building?
There are __ offices in the building

Answers

Answer:

130 offices are in the building

Step-by-step explanation:

first 39/x = 30/100

secondly, you cross multiply 39 x 100 and 30 x x

100 x 39= 3900

3900/30 = 130

Answer:

ANS. = 130

30% or 30/100=39offices

use cross multiplication

100/30 x 39/1 (note 30/100 is inversed to 100/30) math. law

10/3 x 39/1 (using divisor 10)

10/1 x 13/1 (using divisor 3)

10 x 13 = 130

Ans = 130 offices

Ans.Checked

30% of 130 offices

30/100 x 130/1

3/10 x 130/1 (10 as divisor)

3/1 x 13/1 (10 as divisor)

3 x 13 = 39

39 offices

Q.E.D

Four more than twice a number is -10.

Answers

Answer:

4 + ( -7 X 2 ) = -10

Step-by-step explanation:

Check work:

-7 times 2 is -14.

4 + -14 = -10

It is -10 hope it’s right

solve ??? If any1 can

Answers

Answer:

125

Step-by-step explanation:

180-75-50=55 180-55=125

Answer:

s=130

Step-by-step explanation:

the flat line is 180 so to find out S you have to subtract 50 from 180

hope this helps:)

Provide the correct justifications for each statement in the derivation of the tangent difference identity.
1.

identity

2. Trigonometric

identities

3. Divide numerator and denominator by


4. Factor out common factors using the quotient identity.

Answers

Answer:

1: Quotient

2: Difference

3: cos(x)cos(y)

Step-by-step explanation:

I just did it on Edge :)

Answer:

Step-by-step explanation:

it's right here lol

What is the reciprocal of 7/11 in simpliest form

Answers

Answer:

11/7is your answer ....

Step-by-step explanation:

hope its help you

A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the given equation. Using this equation, find out the maximum amount of profit the company can make, to the nearest dollar. y=-x^2+78x-543

Answers

Answer:975

Step-by-step explanation:

What is the value of y=-1/2x +5

Answers

There are three possible answers

 Slope = -1.000/2.000 = -0.500

 x-intercept = 10/1 = 10.00000

 y-intercept = 10/2 = 5

If this is helpful please mark brainliest. Have a great day

How many numbers are 10 units from 0 on the number line?​

Answers

Answer:

2 Numbers; -10, and 10.

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

10 and -10

If 2,x,18,and15y are in the proportion find the value of x

Answers

Answer:

if your proportion is  [tex]\frac{2}{x}[/tex] = [tex]\frac{18}{15y}[/tex]  then your answer would be 1.667 or 1 [tex]\frac{2}{3}[/tex]

edit: your answer could also be [tex]\frac{5}{3}[/tex]

Answer is going to be 5/3

Write the whole number 7 as an improper fraction.

Answers

Improper Fractions means

The numerator is greater than (or equal to) the denominator. 

Then the Answer is :

[tex] = \dfrac{21}{3} [/tex]

Which expression is equivalent to 4(x + 6), if x = 8 ?
A. 8 + x + 8 + 6
B. 8x - 8
C. 8 + x + 6
D. 8x + 24

Answers

Answer:

B

Step-by-step explanation:

4(8+6)=56

8(8)-8=56

Answer:

b

Step-by-step explanation:

the equation equals 56 and b equals 56 as well

Which sentence can represent the inequality

Answers

c might be the correct answer try it :)

Two cities on a map is 7.5 centimeters.The map is 1 centimeter represents 30 kilometers.What is the distance between the cities in kilometers?

Answers

Answer:

225 kilometers

Step-by-step explanation:

7.5 times 30 equals 225

Kane is training for a marathon. He starts by running 3 miles during every training session.

Each week plans to increase the distance of his run by mile.
1/4
Let w be the number of weeks. Write an expression to show the distance Kane
runs in a training session after w weeks.

Answers

Answer:

1/4w + 3 the answer has to be 20 characters long so ignore this

Answer:

Step-by-step explanation:

Given

Required

Determine the distance for w weeks

This will be calculated using the following Arithmetic progression formula

Where

Substitute these values

Open Bracket

Collect Like Terms

Take LCM

Can someone please help me with this, I will mark you as brainliest

Answers

Answer:

1st answer is 1/2x^5

2nd answer is m^3/16p^2q^2

3rd answer is 2r^4+9r^3

What is the product of -3(-6r+6)

Answers

Step-by-step explanation:

-3 times -6r= 18r

-3 times 6 =-18

18r=-18

R=-1

If the answer is wrong try just 1

Answer:

0

Step-by-step explanation:

remove r first

-3(-6+6)

-3x-6= 18 -3x6|=-18

18-18=0

or

-3(-6+6)

=-3(0)

=-3x0

=0

don't forget the r you removed which equals to one

so you got 1

-3(-6r+6)=1

wish it could help

Jim is an archaeologist who wants to determine the age of a fossil. The half-life of Carbon-14 is 5730 years. Jim determines there must have been 6.6 grams of Carbon-14 in the fossil when the animal was alive. Now there is only 1.2 grams of Carbon-14 remaining. What is the age of the fossil?

14,092.54
13,119.45
16,345.18
15,540.97

Answers

Answer:

14,092.54

Step-by-step explanation:

I just had this question and got it right.

are the triangles below acute obtuse or right

Answers

Answer:

Acute

Step-by-step explanation:

Answer:

B = acute

C = acute

Step-by-step explanation:

None of them have degrees over 90 degrees

sorry for the late reply lol

56x + 40 = 48x + 104

Answers

Answer:

56x-48x=104-40

8x=24

X=3

Step-by-step explanation:

the answer is 8                      

]explanation subtract 56-48 and 104-40 you should get 8x=64

divide 8/8 and 64/8 and the answer is 8            

8(3x-2)-8x=9(2x-6) find x

Answers

if i’m solving it correctly x = 4

Answer:

x=19

Step-by-step explanation:

8(3x-2)-8x=9(2x-6) Distribute.

24x-16-8x=18x-54   Combine like terms.

16x-16=18x-54         Subtract 16x from both sides (getting rid of a variable first  

-16x     -16x               is easier).

-16=2x-54                 Add 54 to both sides.

+54    +54

38=2x                       Divide both sides by 2.

/2   /2

19=x

Hope this helps!! Have a great day ^^

Select the correct answer from the drop-down menu.

A company sells its products to distributors and boxes of 10 units each. it's profits can be modeled by this equation, where p is the profit after selling n boxes.

p = -n² + 300n + 100,000

Use this equation to complete the statement.

The company breaks even, meaning the profits are only $0, when it sells _____ boxes.

Options for Blank:

A: 200 or 500

B: 500

C: 150

D: 200​

Answers

Answer:

B. 500

Step-by-step explanation:

Given the profit made by a company modeled by the function

p = -n² + 300n + 100,000

The company breaks even when p = 0

To get the number of boxes sold when the company breaks even, we will substitute p = 0 into the equation.

0 = -n² + 300n + 100,000

multiply through by -1

0 = n² - 300n - 100,000

n² - 300n - 100,000 = 0

(n² - 500n) + (200n - 100,000) = 0

n(n-500)+200(n-500) = 0

(n+200)(n-500) = 0

n+200 = 0 and n-500 = 0

n = -200 and n = 500

Since n cannot be negative

Hence n = 500

This means that the company breaks even when it sells 500 boxes

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