Shown here is a mathematical step taken when solving an equation. Identify the mathematical reason or property used to simplify from the first step to the second step. 8D=56. D=7

Answer:18%

Step-by-step explanation:

50.00-42.64=9.36

9.36/52=.18

Answer:

18%

Step-by-step explanation:

$52.00-$42.64= $9.36

[tex]\frac{9.36}{52.00}[/tex] x100

=0.18 x 100

=18%

Answer:

9/4 this Is a fraction

Step-by-step explanation:

1 - 10 = -9

4 - 8 = -4

-9 and -4 turn positive

Answer:

Explained below.

Step-by-step explanation:

The regression analysis output is as follows:

                       Coefficients          Standard Error         t Stat            P-value

Intercept        7.856710924          1.316226455         5.969118       0.001889

Music Video   0.094781123         0.027926367        3.393965      0.019378

Views

R-sq. = 69.73%

R-sq. (adj) = 63.68%

A

There are two variables used in this study, the independent and the dependent variable.

The independent variable is the number of online music video views and the dependent variable is the number of guitar sales.

B

The coefficient of determination R² specifies the percentage of the variation in the dependent variable (Y) that is forecasted or explained by linear regression and the forecaster variable (X, also recognized as the independent-variable).

Thus, the proportion of the variation of guitar sales that is explained by its linear relationship to music video views is 69.73%.

C

The least square regression line is:

[tex]y=7.856710924+0.094781123\cdot x[/tex]

The least square regression line implies that there is a positive relationship between the guitar sales and music video views. That is as the number of music video views increases the guitar sales increases. And vice-versa.

Thus, increased guitar sales were caused by online music video views.

Answer:

c

Step-by-step explanation: If you do the math you can clearly see and I got the answer correct.

Answer:

48 minutes

Step-by-step explanation:

First do 3 divided by 3/4 and that gives you 4. Then multiply 4 by 12 and you get 48.

Answer:

45

Step-by-step explanation:

I love math, so this was fun! First, we need to know how long it would take him to walk 1 mile. We know it took 12 minutes to walk 3/4 of a mile, so we just need to figure out how long each quater is. For this problem, each quarter of a mile is 3 minutes, and so we just need to multiply that by 4. then, we know it would take him 15 mintues to walk a mile. Then, just multiply that by 3! Hope this helps, sorry I can't spell :)

Answer:

can you space it plz

Step-by-step explanation:

Answer:

The correct answer is choice B.

Step-by-step explanation:

Monocots differ from the dicots In the structural features of the leaves, the stems, roots, and flowers. The differences start from the very beginning of the plant's life cycle: the seed. Monocots have one cotyledon, while dicots have two. When it comes to leaves,  monocots have narrow leaves with the typical parallel leaf veins. Dicots have broad leaves with a network of netted leaf veins.

Answer:

Parallel lines are lines that do not meet while perpendicular lines are aligned 90 degrees to each other.

Step-by-step explanation:

Imagine two straight lines, drawn side by side to each other with no angle between them. When they are drawn to infinite, no point of one line would touch the other.

Perpendicular lines are two or more line that meets at a point to form a right angle, that is, separated with an angle of 90 degrees to each other.

Answer:

731

Step-by-step explanation:

Answer:

The equation that matches the table is y = -5x + 7 ⇒ C

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

The rule of the slope is m =  [tex]\frac{y2-y1}{x2-x1}[/tex] , where

From the given table

→ Choose any two points from the table

∵ Points (0, 7) and (1, 2) are in the table

∴ x1 = 0 and y1 = 7

∴ x2 = 1 and y2 = 2

→ Substitute them in the rule of the slope above

∵ m = [tex]\frac{2-7}{1-0}=\frac{-5}{1}[/tex]

∴ m = -5

→ Substitute it in the form of the equation above

∵ y = -5x + b

∵ b is the value of y at x = 0

∵ At x = 0, y = 7

∴ b = 7

∴ y = -5x + 7

∴ The equation that matches the table is y = -5x + 7

Answer:

25

Step-by-step explanation:

Divide the total cost ($24.75) by the price per song ($0.99) to get the amount of songs bought.

Answer:

150$

Step-by-step explanation:

In order to find the answer to this question you must find twenty-five percent of two-hundred.

50% of 100 = 50

100% of 100 = 100

100% of 200 = 200

50% of 200 = 100

25% of 200 = 150

= 150$

Hope this helps.

Answer:

A is 3, -5

B is -4, -1

Step-by-step explanation:

Hope it helps!!

Answer:

0.3

Step-by-step explanation:

Answer:

0.3

Step-by-step explanation:

I hope this is what you where asking for?

Answer:

5

Step-by-step explanation:

1 1/4 multiplied by 4 is 5 add another 1 1/4 is 6 1/4

Answer:

2.85714285714

Step-by-step explanation:

just searched it.

Answer:

-6

Step-by-step explanation:

The value of the given expression will be equal to -3.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.

The solution to the expression is:-

=  4(  x  +  3  ) (  x + 1  )  /  (  x  +  5  )  (  x  -  5  )

=  4(  3 +  3  ) (  3  + 1  )  /  (  3  +  5  )  (  3  -  5  )

=  (  4  x  6  x  4 )  /  (  8  x   -2  )

=  -3

Therefore the value of the given expression will be equal to -3.

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Answer:

JM and KN

Step-by-step explanation:

one thing you can do to eliminate some answer choices is to make sure that the statement doesn't repeat a letter

the correct answer would be something like AB and BC, it would be like AB and CD

from there, you just have to look and pick your answer

Answer:

the 3rd one

Step-by-step explanation:

Answer:

110

Step-by-step explanation:

Ik

Answer:

32

Step-by-step explanation

for this triangle the 2 missing angles are the same angle so subtract 116 from 180 to find the sum of the 2 angles then divide

Answer:

(-2/17, 5/17)

Step-by-step explanation:

Given the coordinates A (-3,-5) to B (9,4), we are to find the coordinate of the point cutting the line using the ratio 7:10

Using the midpoint formula;

M(X,Y) = {(ax1+bx2/a+b, (ay1+by2/a+b))

Given

x1 = -3, y1 = -5, x2 = 9, y2 = 4, a = 7 and b = 10

get the required coordinates;

X = ax1+bx2/a+b

X = 7(-3)+10(9)/7+10

X = -21+19/17

X = -2/17

Get the Y coordinate;

Y = ay1+by2/a+b

Y = 7(-5)+10(4)/7+10

Y = -35+40/17

Y = 5/17

Hence the required coordinate is (-2/17, 5/17)

Answer:

a. f(x) = 21 (20) +1 (25) = 445

b. The scenario is a function because each student just have to pay once.

Answer:

The purpose of taking the average of a set of data is to give one a general idea of how the data set is acting or performing as a whole.

Step-by-step explanation:

Answer:

2x+y s with. 3x-2y 7 one of these. 3x+2y ex) (2x-y) (3x-2y)

Step-by-step explanation:

2x+y s with. 3x-2y 7 one of these. 3x+2y ex) (2x-y) (3x-2y)

hope this helped ^^

Answer:

10x+6

Step-by-step explanation:

you would times the 2 by the 5 and the 2 by the 3 which gives you 10x+6

Answer:

13 units

Step-by-step explanation:

Because the c term (9 for f(x)) represents the y intercept. The y only moves the graph up or down. Since we are trying to get from 9 to -4 move down by 13 units.

Answer:

Step-by-step explanation: slope is (9-(-3))/(25-5)

12/20=0.6

point slope formula y-y1=m(x-x1), m slope (x1, y1) point

y-9=0.6(x-25)

y=0.6x-15+9

y=0.6x-6, x months and y profit.

for 60 months, y=0.6*60-6 or 36-6=$30000 profit

Answer:

£395.

Step-by-step explanation:

Call out fee=35

30 per hour = 2 hour to be =60

but,12 minutes in hours= 12/60= 0.2

0.2 = 0.2*30 = 6

2 hours and 12 minutes would be charge as

30 + 6 = 36

36*10 = 360

call out fee + per hour = 35 + 360 + 395

Answer:

I dont understand what your saying???

Step-by-step explanation:

The slope of the line in the graph is,

⇒ m = 1

The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is,

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

Two points on the line are (- 1, 0) and (0, 1).

Now,

Since, The equation of line passes through the points  (- 1, 0) and (0, 1).

So, We need to find the slope of the line.

Hence, Slope of the line is,

m = (y₂ - y₁) / (x₂ - x₁)

m = (1 - 0) / (0 - (-1))

m = 1 / 1

m = 1

Thus, The slope of the line in the graph is,

⇒ m = 1

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