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Yuliya22 [10]
2 years ago
11

Find the slope using the following points: (20,-10)(6,-20)

Mathematics
1 answer:
vagabundo [1.1K]2 years ago
7 0

   \rule{50}{1}\large\blue\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}

    <em>Find the slope using the following points:</em>

<em>         (20, -10) (6, -20)</em>

<em />

<em />\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}

Use the slope formula:-

                    \LARGE\text{$\displaystyle\frac{y_2-y_1}{x_2-x_1}$}

Replace letters with numbers as follows:-

                             \Large\text{$\displaystyle\frac{-20-(-10)}{6-20}$}

On simplification,

                                  \Large\text{$\displaystyle\frac{-20+10}{-14}$}

On further simplification,

                                        \Large\text{$\displaystyle\frac{-10}{-14}$}

Reducing the fraction,

                               \large\text{$\displaystyle\frac{10}{14}$}

               \large\text{$\displaystyle\frac{5}{7}$}\leftarrow\:slope

<h3>Good luck with your studies.</h3>

\rule{300}{1}

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Rainbow [258]

Answer:

it is ether b or c

4 0
3 years ago
The Carousel in the National Mall has 4 rings of horses. Kelly is riding on the inner ring, which has a radius of 9 feet. Maya i
Alexeev081 [22]

Maya travels  4.19 feet/sec faster than Kelly !

Difference in distance is : 106.76-56.52 = 50.24 feet

<u>Step-by-step explanation:</u>

Here we have , The Carousel in the National Mall has 4 rings of horses. Kelly is riding on the inner ring, which has a radius of 9 feet. Maya is riding on the outer ring, which is 8 feet farther out from the center than the inner ring is. We need to find In one rotation of the carousel, how much farther does Maya travel than Kelly . Let's find out:

Kelly is riding on the inner ring, which has a radius of 9 feet

Total distance traveled by Kelly is circumference of circle with radius 9 feet i.e.

⇒ Distance = 2\pi r

⇒ Distance = 2(3.14) 9

⇒ Distance = 56.52feet

Maya is riding on the outer ring, which is 8 feet farther out from the center than the inner ring .

Total distance traveled by Maya is circumference of circle with radius (8+9=17) feet i.e.

⇒ Distance = 2\pi r

⇒ Distance = 2(3.14) 17

⇒ Distance = 106.76feet

Therefore , Difference in distance is : 106.76-56.52 = 50.24 feet

Now , Speed of both is give by

⇒ Speed_k_e_l_l_y=\frac{56.52}{12} = 4.71 feet/sec   And ,

⇒ Speed_M_a_y_a=\frac{106.76}{12} = 8.90 feet/sec

Faster Maya travels = 8.90-4.71 = 4.19

So , Maya travels  4.19 feet/sec faster than Kelly !

8 0
4 years ago
Need help don’t know what to do
ICE Princess25 [194]
(B) option is correct - not continuous at x = 0
4 0
2 years ago
21 is what percent of 40?
elena-s [515]

1. We assume, that the number 40 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 100% equals 40, so we can write it down as 100%=40.

4. We know, that x% equals 21 of the output value, so we can write it down as x%=21.

5. Now we have two simple equations:

1) 100%=40

2) x%=21

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=40/21

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.


7. Solution for 21 is what percent of 40


100%/x%=40/21

(100/x)*x=(40/21)*x       - we multiply both sides of the equation by x

100=1.90476190476*x       - we divide both sides of the equation by (1.90476190476) to get x

100/1.90476190476=x

52.5=x

x=52.5


now we have:

21 is 52.5% of 40

6 0
3 years ago
Read 2 more answers
*If you Answer a random answer just for points you WILL be reported*
Pepsi [2]

4n-5=3n+2

subtract 3n from each side

4n -5 -3n = 3n +2 -3n

n -5 = 2

add 5 to each side

n-5+5 = 2+5

n = 7

To solve a equation with a variable, you need to get the variable alone.  I got the variable on the left hand side and the constants on the right hand side

5 0
4 years ago
Read 2 more answers
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