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satela [25.4K]
3 years ago
7

The cleaning crew cleans 100 homes per week and earns a weekly economic profit of $200. the cleaning crew charges $80 per home.

what is the cleaning crew's total cost per week?
Mathematics
1 answer:
loris [4]3 years ago
8 0
$80(100) + $200 = $8200
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Over [174]
[8x-2y]+[3x-4y]
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=11x-6y
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A rectangle on a coordinate plane has vertices L(0, 6), M(8,6), N(8,0), and O(0, 0). What are the dimensions of the
solniwko [45]

Answer:

The whole rectangle is in the 1st dimensions.

For how to do this, you need draw it in a grid chart.

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3 years ago
How do you find the slope ?
snow_lady [41]
The slope: rise/run
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3 years ago
PLEASE HELP, WILL GIVE BRAINLIST TO BEST ASNWER GOOD EASY POINTS!<br><br> right answers only please
worty [1.4K]

The line of the best fit is y = 2100x -4166040 and the number of bottles is, 86460 which expect to sell in 2025

<h3>What is the line of best fit?</h3>

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

We have data shown in the table:

To find the line of best fit, we will calculate its slope and y-intercept.

We know the slope is given by:

\rm m = \dfrac{n\sum xy-\sum x \sum y}{n \sum x^2 - (\sum x)^2}   where n = 5

After calculating, we get,

\rm n\sum xy-\sum x \sum y = 105000  and

\rm n \sum x^2 - (\sum x)^2 = 50

m = 105000/50 = 2100

For y-intercept b:

\rm b = \dfrac{\sum y -m \sum x}{n}

After calculating:

b = -4166040

The line becomes:

y = 2100x -4166040

If x = 2025 put this value in the line, we get:

y = 86460

Thus, the line of the best fit is y = 2100x -4166040 and the number of bottles is, 86460 which expect to sell in 2025

Learn more about the line of best fit here:

brainly.com/question/14279419

#SPJ1

4 0
2 years ago
How do you do this question?
likoan [24]

Answer:

a) -7/9

b) 16 / (n² + 15n + 56)

c) 1

Step-by-step explanation:

When n = 1, there is only one term in the series, so a₁ = s₁.

a₁ = (1 − 8) / (1 + 8)

a₁ = -7/9

The sum of the first n terms is equal to the sum of the first n−1 terms plus the nth term.

sₙ = sₙ₋₁ + aₙ

(n − 8) / (n + 8) = (n − 1 − 8) / (n − 1 + 8) + aₙ

(n − 8) / (n + 8) = (n − 9) / (n + 7) + aₙ

aₙ = (n − 8) / (n + 8) − (n − 9) / (n + 7)

If you wish, you can simplify by finding the common denominator.

aₙ = [(n − 8) (n + 7) − (n − 9) (n + 8)] / [(n + 8) (n + 7)]

aₙ = [n² − n − 56 − (n² − n − 72)] / (n² + 15n + 56)

aₙ = 16 / (n² + 15n + 56)

The infinite sum is:

∑₁°° aₙ = lim(n→∞) sₙ

∑₁°° aₙ = lim(n→∞) (n − 8) / (n + 8)

∑₁°° aₙ = 1

8 0
3 years ago
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