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Answer:

Cost is 7c+34.

Step-by-step explanation:

2(c+17) + 5c

=2c+34+5c

=7c+34

Answer:

2^4   * 9^4

Step-by-step explanation:

(2*9)^4

We can take the power to each term inside the parentheses

2^4   * 9^4

Answer:

8 to the power of 4

Step-by-step explanation:

since their are four 8, (8x8x8x8) , you have to put that into an exponent

still need proof?

8x8x8x8=4096

8 to the power of 4 = 4096

so to conclude, 8 to the power of 4 is the same thing as saying 8x8x8x8, it is jsut the exponent version

Answer:

Yes it is

Step-by-step explanation:

so 40 * 80 = 3,200

4 * 8 = 32

Then add the two 0's to the end

so 3,200

Answer:

The best way to solve 40x80 using mental math is to break down the problem.One example would be to solve 4x8 then add the two zeros to your answer to get 3200.

Step-by-step explanation:

Answer: Students 1 and 3

Step-by-step explanation:

student 1=

- (5r+3s-1)=

-5r+3s-1=

the same answer as student 3

Answer:

(-19, 55)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define Systems

y = -3x - 2

5x + 2y = 15

Step 2: Solve for x

Substitution

Step 3: Solve for y

Answer:

x'1 = -1

x'2 = 8

Step-by-step explanation:

Answer:

x = - 1, x = 8

Step-by-step explanation:

Given

x² - 7x - 8 = 0 ( add 8 to both sides )

x² - 7x = 8

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- [tex]\frac{7}{2}[/tex] )x + [tex]\frac{49}{4}[/tex] = 8 + [tex]\frac{49}{4}[/tex] = [tex]\frac{81}{4}[/tex]

(x - [tex]\frac{7}{2}[/tex] )² = [tex]\frac{81}{4}[/tex] ( take the square root of both sides )

x - [tex]\frac{7}{2}[/tex] = ± [tex]\sqrt{\frac{81}{4} }[/tex] = ± [tex]\frac{9}{2}[/tex] ( add [tex]\frac{7}{2}[/tex] to both sides )

x = [tex]\frac{7}{2}[/tex] ± [tex]\frac{9}{2}[/tex]

Thus

x = [tex]\frac{7}{2}[/tex] - [tex]\frac{9}{2}[/tex] =  [tex]\frac{-2}{2}[/tex] = - 1

x = [tex]\frac{7}{2}[/tex] + [tex]\frac{9}{2}[/tex] = [tex]\frac{16}{2}[/tex] = 8

Answer: $0.95 per battery

Step-by-step explanation: Divide 14.25 and 15.

Answer:

For Canada = -0.3953

For Italy = 1.46511

For USA = -1.9069

Step-by-step explanation:

Given:

Mean μ = 29.4 days

Standard deviation σ = 8.6

Missing Data

For

Canada = 26 days

Italy = 42 days

USA = 13 days

Find:

Z scores

Computation:

Z scores = [X-μ]/σ

For Canada

Z scores = [26-29.4]/8.6

Z scores = -0.3953

For Italy

Z scores = [42-29.4]/8.6

Z scores = 1.46511

For USA

Z scores = [13-29.4]/8.6

Z scores = -1.9069

Answer:

25 minute

Step-by-step explanation:

Speed is the ratio of the total distance traveled  to the total time taken to reach this distance. The formula for speed is:

Speed = total distance / total time taken

The total distance covered by the sloth = 60 ft, and the time taken = 5 minutes, hence:

Speed = total distance / total time taken

speed of the sloth = 60 ft / 5 minutes = 12 ft per minute.

We can calculate the time taken for the sloth to travel the length of the football field (i.e. 300 ft)

speed = distance / time

12 ft/minute = 300 ft / time

time = 300 ft / (12 ft/minute)

time = 25 minute

Answer:

119.75mg

Step-by-step explanation:

Convert pounds to kg and then multiply by 10 and round to the nearest tenth

The solution to the equation 1/2a + 2/3b = 50 when b = 30 is a = 60

The equation is given as

1/2a + 2/3b = 50

The value of b is given as

b = 30

So, we have

1/2a + 2/3 * 30 = 50

Evaluate the product

So, we have

1/2a + 20 = 50

Evaluate the like terms

So, we have

1/2a = 30

Multiply both sides by 2

a = 60

Hence, the solution to the equation 1/2a + 2/3b = 50 when b = 30 is a = 60

Read more about equations at

https://brainly.com/question/2972832

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Answer:

Therefore, the correct answer is 24,069,100.

Step-by-step explanation:

(6.91 x 10^4) = 6.91 x 10,000 (10 x 10 x 10 x 10) or 69,100.

(2.4 x 10^7) = 2.4 x 10,000,000 (10 x 10 x 10 x 10 x 10 x 10 x 10) or 24,000,000.

24,000,000 + 69,100 = 24,069,100

Therefore, the correct answer is 24,069,100.

Hope this helps! :D

Answer: x=-1°

Step-by-step explanation:

m∠LMP=x°+73°     m∠PMN=81°+x°     m∠LMN=152°      x=?

m∠LMP+m∠PMN=m∠LMN

x°+73°+81°+x°=152°

2x°+154°=152°

2x°+154°-154°=152°-154°

2x°=-2°

Divide both parts of the equation by 2:

x°=-1°

Answer:

34.5 ft squared

Step-by-step explanation:

Split the figure into a triangle and two rectangles. The two vertical lines on the figure already do that. The triangle's area is 3*3/2 because 8 - 3 - 2 = 3 is the base and the height is 3. Use b * h/2. The area of the smaller rectangle is 2 *3. The area of the larger rectangle is 8 * 3. Add the areas up: 4.5 + 6 + 24 = 34.5.

Answer:

1.the slope is 1/2 and the y int is -4

2.the slope is -3 and the y int is 6

The equation will be F = 3x. Then the force required to compress the spring 8 ​inches will be 24 pounds.

A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.

A spring's length directly relates to the amount of force needed to compress it.

Let F be the force and x be the compressed length. Then the equation will be

F ∝ x

F = kx

If a force of 15 pounds is required to compress a certain spring 5 ​inches. Then the value of the variable k will be

15 = 5k

k = 15/5

k = 3 pounds per inch

Then the equation will be

F = 3x

The force required to compress the spring 8 ​inches will be

F = 3 (8)

F = 24 pounds

The force required to compress the spring 8 ​inches will be 24 pounds.

More about the ratio and the proportion link is given below.

https://brainly.com/question/14335762

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15%

Explaination according to zehtmnt who also answered this question by another person:

You have to do a proportion

12. = x

80 100 and u have to cross multiply

80x = 1200

80. 80

Answer:

Following is the required answer for your question.

Thank you!

Answer:

Here ya go:

Step-by-step explanation:

Answer:

ok, yea, the above answer is correct

Step-by-step explanation:

Answer:

The answer is A linear model is a good fit for data set b but not data set a

Step-by-step explanation:

It can be concluded that data set A is linear, and data set B is not linear.

        [Y] = a + b[X] + ɛ

Given is that residuals for data set A and data set B were calculated and plotted on separate residual plots.

If the residuals for data set [A] form a pattern and the residuals for data set [B] do not form a pattern than it can be concluded that data set A is linear, and data set B is not linear.

To solve more questions on regression line, visit the link below -

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Answer:

d

Step-by-step explanation:

if ummm its d

Answer:

I believe it is c

Answer:

c is the correct answer

The image below shows the graph f(x) = |x| – 4

Hope this helps! :)

Answer:

[tex]A) AA[/tex]

Step-by-step explanation:

[tex]We\ are\ given\ that\\\The\ Angles\ of\ \triangle 1,\ are\ 40, 100\\The\ Angles\ of\ \triangle 2\ are\ 40, 40\\The\ Hence,\\Through\ Angle\ Sum\ Property\ Of\ A\ Triangle, \\The\ Angles\ of\ \triangle 1,\ are\ 40, 100,40\\The\ Angles\ of\ \triangle 2\ are\ 40, 40,100\\\\As\ we\ can\ observe\ that\ all\ ANGLES\ of\ the\ triangles\ correspond, \\through\ AA\ Similarity\ Postulate. which\ states\ that\ if\ two\ triangles\ have\ two\\ or\ more\ corresponding\ angles,\ the\ triangles\ are[/tex]

[tex]SIMILAR[/tex]