How high is a stack of b books?

Answer:

14

Step-by-step explanation:

7.5x + 25 = 130

         -25    -25

7.5x = 105  

[tex]\frac{7.5x}{7.5}=\frac{105}{7.5}[/tex]

x = 14

Hence, she must make 14 visits in order to earn a free movie ticket.

The graph showing a function increasing at a constant rate is graph B.

In order to check the rate of rise of a function in an interval find the value of its derivative at all the points of that interval. If the values of derivatives are increasing then the function is increasing else it is decreasing.

The graphs A and B are given in the problem can be analysed one by one as follows,

Graph A,

In the interval [-∞,0], the slope of the function is decreasing.

And, in the interval [0,∞], the slope is increasing.

Thus, it is not increasing at a constant rate.

Graph B,

The function has the same slope in both the intervals [-∞,0] and  [0,∞], which is positive.

It implies that the function is increasing at a constant rate.

Hence, the function shown in graph B is is increasing at a constant rate.

To know more about increasing function click on,

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Answer:

(1+x)

n

=

n

C

0

+

n

C

1

x+

n

C

2

x

2

+

n

C

3

x

3

+.....

n(1+x)

n−1

=

n

C

1

+2

n

C

2

x+3

n

C

3

x

2

+....

Put x=5

n(1+5)

n−1

=C

1

+2.5C

2

+3.5

2

C

3

+....

=n6

n−1

.

Answer:

11-4x

Step-by-step explanation:

Answer:

AOD i think

Step-by-step explanation:

Answer:

angle aob

Step-by-step explanation:

Answer:

2.) Infinitely many solutions

3.) No solutions

Step-by-step explanation:

To solve systems of equations graphically, you need to find where they intersect

2.) First put each equation in the form y=mx+b

x-y=6 -> y= x-6

2x=12+2y -> y= x-6

Then, graph each line

Since we have the same equation, the lines are on top of each other so there are infinitely many solutions as they intersect everywhere.

To check, plug a point in from the graph into both equations and you should get 0=0

3.) First put each equation in the form y=mx+b

1/2x-y=4 -> y=1/2x-4

2y=x+6 -> y=1/2x+3

Then, graph each line

Since the lines have the same slope but a different y intercept, the lines are parallel. Therefore, there are no solutions as they do not intersect.

To check your answer, you would one equation as the y in the other equation.

2(1/2x-4)=x+6, then solve for x

Then plug that x into the original equations, and you'll see they are not equal. Hope that helps!

Answer:

9

Step-by-step explanation:

Range is Biggest Number - Smallest Number.

12 is the biggest number and 3 is the smallest number.

So, 12 - 3 = 9

Answer:

9

Step-by-step explanation:

becauses 12-3=9

hope it helps

Answer:

400 dollars

Step-by-step explanation:

Answer:

30/80

3/8x100

37.5

Step-by-step explanation:

Answer:6x+3-3x

6x-3x= 3x

3x+3=15

-3. -3

3x=12

3. 3

X=4

Step-by-step explanation:

Answer:

it's a linear problem

Step-by-step explanation:

0=1

1=2

2=3

3=4

4=5

5=6

6=7

7=8

8=9

9=10

Answer:

is a lot of them

Step-by-step explanation:

94+1, 95+0, 79+16

Answer: 5(3+16)

Step-by-step explanation:

5x(3+16) = (3+16= 19) = 5 x 19 = 95 which is equivalent to 15 + 80 = 95

brainliest plz

Answer:

4[tex]\sqrt{5}[/tex]  

Step-by-step explanation:

Geometric mean is when you multiply the two numbers 4 and 20 and then take the square root of the product.

So 4 x 20 = 80, and the [tex]\sqrt{80}[/tex] = 4[tex]\sqrt{5}[/tex]

However-- that's if you meant finding the geometric mean of 4 and 20 when you said "between"

Answer:

I think No

Step-by-step explanation:

Answer:

the graph is shifted down 3 units

Step-by-step explanation:

5x-3

meaning the original graph of 5x going down three units

Answer:

The graph is 3 units down

Step-by-step explanation:

The equation is 5x-3 meaning 3 units down

Answer:

24 ;)

Step-by-step explanation:

have a great day!

Answer:

x = 119, y =  55

Answer:

x = 119°

y = 55°

Step-by-step explanation:

y + 125 = 180         {linear pair}

       y   = 180 - 125

       y = 55°

Sum of all the angles of quadrilateral = 360

x + 55 + 72 +114 = 360

               x + 241 = 360

                         x = 360 - 241

                        x = 119°

Answer: y – 3 = –1/7(x – 3)

Answer:

11w-6

Step-by-step explanation

2w+5w-6+4w=7w+4w-6=11w-6

Answer:

GE = 14

Step-by-step explanation:

3x + 5 = 6x - 4

x = 3

Plug it in.

3 (3) + 5 = 14 = GD

6 (3) - 4 = 14 = GF

With that information, you know all the blue lines are the same.

GE = 14

Answer:

you didn't post the tables

Answer: 1250

Step-by-step explanation:

0.25x1000=250

+ 1km/1000 meters

1000+250=1250

Answer:

2500m

Step-by-step explanation:

1.25km is 1250m. 1250 multipled by 2 is 2500m.

Answer:

i think its b

Step-by-step explanation:

i think its b because his grades are the variable that keeps changing

Answer:

X= 120

Step-by-step explanation:

Answer:

98

Step-by-step explanation:

6(3) + 10(8) = 18 + 80 = 98

Answer:

98

Step-by-step explanation:

plug x and y in

Answer:

54

Step-by-step explanation:

You do -18 times -3 which is equal to 54. It is positive because in multiplication and division if you multiply a negative times a negative or divide a negative divided by a negative it will equal a positive.

Hope this helps!

Answer:

116 c

Step-by-step explanation:

Answer:

116 ft²

Step-by-step explanation:

8x8=64

12x2=24

2x6=12

4x4=16

64+24+12+16=116

Step-by-step explanation:

1 is a right triangle I know this because a right triangle is a triangle which one of the angles is a 90 degree angle

Answer:

Triangles 1,2,3, and 4 are all right triangles