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3 years ago

What is the slope of the line that passes through the points (1, -8) and (-5, 10)?

Mathematics

1 answer:

Akimi4 [234]3 years ago

3 0

You have two points A ( X;Y) and B ( X ; Y)

slope is : ( Yb -Ya) / (Xb -Xa )

A (1; -8) B ( -5 ; 10)

so : ' (10 - -8 ) / ( -5 - 1) = 18 /-6 = -3

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(b) About how many times larger was the population of the United States than the population of Columbus, Ohio? Show your work! N

padilas [110]

Answer:

The population of the United States is 387.87 times larger than the population of Columbus, Ohio.

Step-by-step explanation:

8.25 times 10^5 = 825,000

3.2 times 10^8 = 320,000,000

320,000,000 divided by 825,000 = 387.87

7 0

3 years ago

Combine the like terms to make a simpler expression: 5k (-2k)-(-1)

TiliK225 [7]

Hey there, Lets solve this problem together.

Our first step will be to gather like terms

 $5*-2k*k+1$

Simplify 5×−2k×k to −5×2k×k

 $-5*2k*k+1$

Simplify 5×2k×k to 10k^2

 $-10k^2+1$

7 0

3 years ago

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The local newspaper has letters to the editor from 20 people. If this number represents 8% of all of the newspaper's readers,

zlopas [31]

let the all readers be x

8%=20×100%÷x

8%x=2000%

x=2000%÷8%

x=250

3 0

3 years ago

Find AB. Round to the nearest tenth if necessary.

shusha [124]

Answer:

I think the right answer would be 7

Step-by-step explanation:

We got-ta use the equation: CA * BA = DA²

CA = 15 + BA

DA² = 8² = 64

=> (15 + BA) BA = 64

Subtract 15 from each side:

BA(BA) = 49

BA² = 49

Now take the square root of each side

BA = 7

Hope this helps!

3 0

3 years ago

What is the answer of 11 6/9 - 4 4/9

IrinaK [193]

Answer:

$7 \frac{2}{9}$

Step-by-step explanation:

here is your answer

Calculation steps:

$11 \frac{6}{9} - 4 \frac{4}{9}$

$= (14 - 4) + ( \frac{6}{9} - \frac{4}{9} )$

$= 7 + \frac{6 - 4}{9}$

$= 7 + \frac{2}{9}$

$7 \frac{2}{9}$

4 0

2 years ago

Read 2 more answers