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3 years ago

Simplify 6 (2X-3) -7X + 5 sorry im just lazy xD

Mathematics

2 answers:

maw [93]3 years ago

8 0

Answer:

5x - 13

Step-by-step explanation:

6·(2x - 3) - 7x + 5 =

= 12x - 18 - 7x + 5

= 12x - 7x + 5 - 18

= 5x - 13

olga55 [171]3 years ago

3 0

Answer: $5x-13$

Distribute:

$(6)(2x)+(6)(-3)+-7x+5$

$12x+-18+-7x+5$

Combine Like Terms

$12x+-18+-7x+5$

$(12x+-7x)+(-18+5)$

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Suppose the following data show the introductory interest rates on a sample of 5 credit cards: 5.3, 2.3, 2.9, 4.3, 3.8. Calculat

evablogger [386]

Answer: 1.18

Step-by-step explanation:

Let m be mean

Mean= sum/ n

Mean= (5.3+2.3+2.9+4.3+3.8 ) / 5

m= 18.6 / 5

M= 3.72

Mean= 3.72

Standard deviation sample formula is:

S.D= sqrt((|x-m|^2) / n-1)

So let start with |x-m|^2

For 1st: |5.3-3.72|^2=2.4964

For 2nd: |2.3-3.72|^2=2.0164

For 3rd: |2.9-3.72|^2=0.6724

For 4th: |4.3-3.72|^2=0.3364

For 5th: |3.8-3.72|^2=0.0064

Summation of |x-m|^2 = 5.528

Standard deviation sample formula is:

S.D = sqrt((summation of |x-m|^2) / n-1)

S.D=sqrt(5.528 / 4)

S.D=sqrt(1.382)

S.D=1.176

S.D=1.18 to 2 decimal place

8 0

3 years ago

How to find the perimeter of the polygon with the given vertices

ziro4ka [17]

You would add all the sides together

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3 years ago

If the area of the rectangle shown is 150 square feet, we can use the equation 2x2 - 5x = 150 to find its dimensions. If the sol

anzhelika [568]

If the area of the rectangle shown is 150 square feet, we can use the equation 2x2 - 5x = 150 to find its dimensions.

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3 years ago

1. If b is bigger than a, what can you tell me about angle A?

amm1812

Answer:

a is smaller than b

Step-by-step explanation:

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3 years ago

Read 2 more answers

Rent-An-SUV charges an $80 fee to rent a truck and $12 per mile. Another rental company charges a $150 fee to rent a truck

almond37 [142]

The linear equation that can be used to calculate daily car rentals is f(x) = -20x + 320

Since we are not told what to find, we can look for the linear equation that can be used to calculate daily car rentals;

Let the charge amount be y

Let the amount per mile of the truck rent be x.

If rent-An-SUV charges an $80 fee to rent a truck and $12 per mile, this can be expressed in coordinate form as (12, 80)

Similarly, if another rental company charges a $150 fee to rent a truck and $8.50 per mile, this can also be written in a coordinate form as (8.50, 150)

The standard linear expression is given as f(x) = mx + b

m is the rate of change

b is the y- intercept

Get the rate of change;

$m=\frac{150-80}{8.5-12}\\m=\frac{70}{-3.5}\\m= -20\\$

Get the y-intercept;

80 = -20(12) + b

80 = -240 + b

b = 320

Get the required linear equation;

f(x) = mx + b

f(x) = -20x + 320

Hence the linear equation that can be used to calculate daily car rentals is f(x) = -20x + 320

Learn more on linear equation here: brainly.com/question/12788590

4 0

3 years ago