(Giving Brainliest) A skateboarding ramp is 10 in. high and rises at an angle of ​21°. How long is the base of the​ ramp? Round to the nearest inch.

Answer:

[tex]-\frac{106}{5} or -21.2[/tex]

Step-by-step explanation:

First we would have to get x and y-values by solving systems of equations:

isolate one of the variable from any of the first 2 equations given:

-2x+ y =6 would be y = 2x + 6 when y is isolated.

now plug this equation in for the y given in the second equation:

-7x -4(2x + 6) = -8

Now solve to get the x-value,

-7x - 8x - 24 = -8

-15x - 24 = -8

-15x = 16

x = [tex]-\frac{16}{15}[/tex] or -1.06

To solve for y-value, substitute the gotten x-value in any of the 2 equations and solve:

y = 2([tex]-\frac{16}{15}[/tex]) + 6

y = [tex]\frac{58}{15}[/tex] or 3.86

Now that we have the x and y-values, substitute them in for the 3 equation given:

-9([tex]-\frac{16}{15}[/tex]) -3( [tex]\frac{58}{15}[/tex])

=> [tex]-\frac{106}{5}[/tex] or -21.2 = Final Answer

Hope this helps!

Answer:

[tex]x = 0.25[/tex]

Step-by-step explanation:

Given

[tex]Cost\ Price = 6 + x[/tex]

[tex]Discount =8\%[/tex]

[tex]Amount\ Paid = R6 - x[/tex]

Required

Find x

First, we calculate the amount paid in terms of the cost price.

This is calculated using:

[tex]Amount\ Paid = Cost\ Price * (100\% - Discount)[/tex]

[tex]Amount\ Paid = (6 + x) * (100\% - 8\%)[/tex]

[tex]Amount\ Paid = (6 + x) * 92\%[/tex]

Express as decimal

[tex]Amount\ Paid = (6 + x) * 0.92[/tex]

Open bracket

[tex]Amount\ Paid = 5.52 + 0.92x[/tex]

So, we have:

[tex]Amount\ Paid = 5.52 + 0.92x[/tex] and

[tex]Amount\ Paid = R6 - x[/tex] ---- given

Equate both

[tex]6 - x = 5.52 + 0.92x[/tex]

Collect like terms

[tex]- x -0.92x= 5.52-6[/tex]

[tex]-1.92x= -0.48[/tex]

[tex]1.92x= 0.48[/tex]

Solve for x

[tex]x = \frac{0.48}{1.92}[/tex]

[tex]x = 0.25[/tex]

Answer: 72

Step-by-step explanation:

[tex]V=\frac{1}{2}(3)(8)(6)=\boxed{72}[/tex]

Answer:

J. 2*3*5^3

Step-by-step explanation:

Answer:

Steps:

(14 ÷ 2) + 6 x 3 − 12

7 + 6 x 3 - 12

7 + 18 - 12

25 - 12

13

Answer:

A = 4 pi R^2     V = 4/3 pi R^3

A / V = 3 / R

Also, R = (3 * V / 4 * pi)^1/3 = (3 * 904.32 / (4 * pi))^1/3 = 6 in

So A = 3 / 6 * V = 1/2 * 904.32 = 452.16 in^2

The surface area of the sphere is S = 452.39 inches²

A sphere is symmetrical, round in shape. It is a three dimensional solid, that has all its surface points at equal distances from the center. It has surface area and volume based on its radius. It does not have any faces, corners or edges.

The Surface Area of a Sphere = 4πr²

The Volume of a Sphere = ( 4/3 ) πr³

where r is the radius of the sphere

Given data ,

Let the volume of the sphere be V = 904.32 inches³

Let the surface area of the sphere be S

And , Volume of a Sphere = ( 4/3 ) πr³

In this case, we are given that the volume of the sphere is 904.32 cubic inches, so we can set up an equation:

904.32 = (4/3)πr³

Solving for r:

r³ = (3/4) x (904.32 / π)

r ≈ 6.0 inches (rounded to one decimal place)

Now that we know the radius, we can use the formula for the surface area of a sphere:

A = 4πr²

Plugging in the value of r:

A = 4 x 3.14 x 6.0²

A ≈ 452.39 inches² (rounded to two decimal places)

Hence , the surface area of the sphere is approximately 452.39 square inches.

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Answer:

jjjjjjjj

Step-by-step explanation:

the answer is here https://get.browse-privately.net/offer?cachecode=DgiFMhNoeQ3sNfgGLOTwVQ%3D%3D%3AZmVkY2JhOTg3NjU0MzIxMA%3D%3D&cid=9201&clickid=85685704647&dkw=poop.com&gnum=6&step=0&t1=77&t2=38&t3=0&v=agp

this picture has bad quality, please resend with better picture so i can answer all of them

Answer: let F(x)=y

y=2x+5

Step-by-step explanation:

Answer:

[tex]117 = 66 + \beta \\ \beta = 51[/tex]

Answer:

3.9 milligrams more than the normal or whatever it said

Step-by-step explanation:

you multiply 3.6 by 2 and you get 7.2 then you add 11.8 to that 7.2 which give you 19, then subtract 15.1 from 19 which would give you 3.9 milligrams

Answer:  10 /% decrease

Step-by-step explanation:

1.  original price less new price  700 - 630 = 70

2. divide answer by original price  70/700 = 1/10 x 100 = 10%

3. decrease because the new price is less than original price  

Answer:

I believe the answer is 3x = 2 1/4

Explanation:

Three times the length of each piece of fabric is equal to the total length

Answer:

96 cards

Step-by-step explanation:

each peice of paper makes 4 card, multiply that by the amount of paper, boom 96

Answer:

look it upo

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

1234, 1243, 1324, 1342, 1432, 1423, 2134, 2143, 2314, 2341, 2413, 2431, 3214, 3241, 3124, 3142, 3412, 3421, 4321, 4312, 4231, 4213, 4132, 4123

There are 24 different ways can a race with 4 runners be completed.

A combination is a technique to determines the number of possible arrangements in a collection of items where the order of the selection does not matter.

Given that;

There are 4 runners.

Hence, the number of different ways the race can be completed is:

⇒ 4!

⇒ 4 × 3 × 2 × 1

⇒ 24

Thus, There are 24 different ways can a race with 4 runners be completed.

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Answer:

10 mi

Step-by-step explanation:

6mi x t = 60mi^2

this is basically

6 x t = 60

divide 6 to both sides

t = 10

A large sample would not make you question the results of a study.

Margin of error is a statistical measure which measures the amount of random sampling error in the results of a study.

A large sample gives more precise information.

For example, suppose that we have to conduct a study about the dietary habits of football players worldwide.

It is not possible to take a survey with all the football players around the world

So we must select some of the players, let it be 50 or 100.

Even if we conduct the study on these players, there will be some sampling error due to the lack of survey on many players outside the sample space, which leads to some margin of error.

So if we take a large sample size, we can make the margin of error tending to zero.

Hence the option B. A large sample will not make you question the results of a study.

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Answer:

Is this even a questions?

Answer:

[tex]0.25( \frac{1}{4} ) \\ 0.50( \frac{2}{4}) \\ 1.25(1 \frac{1}{4} )[/tex]

hope it's what u want

Answer:

a=54

Step-by-step explanation:

a/9 = 6

(mutliply both sides by 9)

9(a/9) = 6(9)

a = 54

Answer:

54

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

i gueesss sheeeesh dherh

Answer:

The line graph

Step-by-step explanation:

Why the line graph is more professional and simple to see and understand. And is the preferred graph for numbers, unlike the box graphs its preferred for comparing.

Answer: the second one

Step-by-step explanation:

the second one is easier to read and understand how many people attended. For me, it is clearer to figure out and shows the difference better.

sorry if this is the wrong answer but this is what I would have put if this was my question.

Answer:

x = -2

x = -1

x = 0

Step-by-step explanation:

Find three numbers to the left of -3 on the number line

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

(9, 0)

(0, 11200)

Step-by-step explanation:

The x - intercept is the value of x when y = 0 ; similarly, the y - intercept is the value of y, when x = 0

From the given relation :

y = price, x = number of years

Price after 9 years of usage, the price of car is depreciated to 0

Hence,

x = 9, y = 0

(9, 0)

At purchase, the value of car is 11,200 ;

At this price, the number of years of usage of car is 0

Hence ;

x = 0 ; y = 11200

(0, 11200)

Answer:

N = -9

-9 + 8 < -4

Answer: 4.5

Step-by-step explanation:

9/2 = 4.5

have a good day. you have to use division, and plus, 4.5 + 4.5 = 9