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2 years ago

What is the slope of the line that passes through the points (13,-8) and (-11,4)

Mathematics

1 answer:

pogonyaev2 years ago

3 0

Answer:

- $\frac{1}{2}$

Step-by-step explanation:

Find slope using the slope formula : $\frac{y2-y1}{x2-x1}$

Plug in the given points : $\frac{4- (-8)}{-11-13}$

Add the numbers : $\frac{12}{-11-13}$

Calculate the difference : $\frac{12}{-24}$

Reduce the fraction : - $\frac{1}{2}$

Solution : - $\frac{1}{2}$

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1 year ago

Michelle found the area of a circle as 78.5 〖in〗^2. She used 3.14 for π. What is the radius of the circle? Explain how you found

SCORPION-xisa [38]

Answer:

r = 5 inches

Step-by-step explanation:

Area of circle, $A=78.5\ in^2$

It is required to find the radius of the circle. The area of a circle is given by the formula :

$A=\pi r^2$

r is radius of the circle

$r=\sqrt{\dfrac{A}{\pi}} \\\\r=\sqrt{\dfrac{78.5}{3.14}} \\\\r=5\ \text{inch}$

So, the radius of the circle is 5 inches.

5 0

2 years ago

A square has a side of 10x.simplify an expression for the perimeter of a square

ludmilkaskok [199]

4(10x)
or
4×10x

im sorry if this is incorrect..i tried

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3 years ago

OLUCID 9" LULICI alla Muller NedUVOIRS Clever Portal Maulson White - SU. heps://useast2-w... L for School: Practice & Proble

Alisiya [41]

We are given the following conversion factor:

$10\text{ miles=}16\text{ km}$

We are asked to determine how many miles are 140 km. To do that we use the quotient of the conversion factor where the unit we want to convert to is in the numerator and the given unit in the denominator. Since we want to find miles we use the following quotient:

$\frac{10\text{ miles}}{16\text{ km}}\times140\operatorname{km}$

Solving the operations we get:

$\frac{10\text{ miles}}{16\text{ km}}\times140\text{ km=87.5 miles}$

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1 year ago

A company has two types of machines, type R and type S. Operating at a constant rate, a machine of type R does a certain job in

kozerog [31]

Answer: C. 6

Step-by-step explanation:

Given : Time taken by Machine R to do the job = 36 hours

Time taken by Machine S to do the job = 18 hours

Let x be the number of each type of machine to do the job.

Then , according to the question the required equation will be :-

$\dfrac{x}{36}+\dfrac{x}{18}=\dfrac{1}{2}\\\\\Rightarrow\ x(\dfrac{1}{36}+\dfrac{1}{18})=\dfrac{1}{2}\\\\\Rightarrow\ \dfrac{x}{12}=\dfrac{1}{2}\\\\\Rightarrow\ x=\dfrac{12}{2}=6$

Hence, the number of machines of type R were used =6

8 0

3 years ago