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3 years ago

Which equation can be used to determine the distance between the origin and (-2, -4)?

1 answer:

7 0

$~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-2}~,~\stackrel{y_1}{-4})\qquad \underset{origin}{(\stackrel{x_2}{0}~,~\stackrel{y_2}{0})}\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[0 - (-2)]^2 + [0 - (-4)]^2}$

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Find the amount of simple interest earned in one year on an account that has an interest rate of 3.2 and a principal of $250

stepladder [879]

Y=0.032(250)(1)+250
y=8+250
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You earn $258 in one year.

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3 years ago

Mailboxes Plus sends packages overnight for $5 plus $0.25 per ounce. United Packages charges $2 plus $0.35 per ounce. Me. Molina

Dennis_Churaev [7]

The package weighs 30 ounces.

Step-by-step explanation:

Mailbox Plus charges;

Charges per ounce = $0.25

Let,

x be the number of ounces.

M(x)=5+0.25x

United packges charges;

Charges per ounce = $0.35

U(x) = 2+0.35x

Cost will be same when the functions are equal;

M(x) = U(x)

$5+0.25x=2+0.35x\\5-2=0.35x-0.25x\\3=0.10x\\0.10x=3\\$

Dividing both sides by 0.10

$\frac{0.10x}{0.10}=\frac{3}{0.10}\\x=30$

The package weighs 30 ounces.

Keywords: functions, division

Learn more about division at:

#LearnwithBrainly

6 0

3 years ago

Cole and his sister chloe are cleaning their house. The house has nine rooms in it. If it take one person about 18 minutes to cl

alex41 [277]

Answer: Cole and his sister Chloe will take 81 minutes to clean the whole house.

Step-by-step explanation:

Total rooms in the house = 9

Total persons to clean the house = 2 (Cole and his sister Chloe)

Time taken by 1 person to clean one=18 minutes

Time taken by 2 persons to clean one room together=18 divided by 2 = 9 minutes

Time taken by 2 persons to clean 9 rooms (which is the total number of rooms in the house)=9 multiply 9 = 81 minutes

therefore, they will take 81 minutes to clean the whole house.

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3 years ago

-12.71(-1.008)-(-5.3)+8.27 <br><br><br> type an integer or decimal

Dafna11 [192]

Answer:

Step-by-step explanation:

Integer

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3 years ago

Expand 3(z+3) please help me solve this

mojhsa [17]

Answer:

3(z+3) = 3z + 9 if thats what your asking

Step-by-step explanation:

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3 years ago