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Anna11 [10]
3 years ago
15

Solve each system by substitution: {y = -x + 5, 2x + y = 11

Mathematics
1 answer:
lilavasa [31]3 years ago
5 0
I hope this picture helps. I'll elaborate if needed!

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25 POINTS I WILL GIVE BRAINLIEST Patty’s Parasols recorded the monthly rainfall and their umbrella sales for an entire year. The
Deffense [45]

Answer:

a) From the chart crated with Microsoft Excel, we have that the correlation coefficient, r = √0.8581 ≈ 0.93 to the nearest hundredth

The steps used includes

1) Inputting the given data into the cells on a Microsoft Excel spread sheet

2) Highlighting and sorting the data in the cells in order of increasing Rainfall

3) Generating a dot plot using the sorted data from above

4) Adding the trend line, Square of the linear regression, and the trend line equation

5) Adding the axis labels

(b) The correlation coefficient states that there is a strong positive correlation between the monthly rainfall and and Umbrella sales

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Annalise charges a certain rate per hour to tutor. The number of hours she tutored last week are listed below. Monday 3.5 hours,
jeyben [28]
31.5 hours for $135
135 \div 31.5 = 4.286
Annalise charges about 4.29 per hour.
4 0
3 years ago
Problem: Gerri made a function machine. Find the rule for Gerri's function machine.
shusha [124]
There are an infinite number of possibilities, and not enough information
to decide which possibility is really the one inside the function machine.

Here are a few.  Each of these gives the result that you described,
and there are an infinite number of others:

f(x) = x

f(x) = 2x + 1

f(x) = 10x + 9

f(x) = x² - 2

f(x) = 7x² - 8

f(x) = 31x³ + 30

f(x) = log( |x| ) - 1

f(x) = ln( |x| ) - 1

f(x) = x tan(45°)
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etc.
5 0
3 years ago
An _____has income and expenses
diamong [38]

Answer:

Step-by-step explanation:

1. An income statement has income and expenses. Income statement records all the finances of an individual or an organization for a certain period of time. 2. The three-legged stool represents retirement savings. Retirement savings is the process of putting aside some finances as savings for later part of life. 3. A 401-K is a type of retirement account. This is an account that is set up by the employer to put aside an amount from salary before the tax deductions. 4. The easily accessible part of an emergency fund is savings. This saving comes fetching at the time of the hour when there is need for it. 5. Working a second job helps meet savings goals can help you pay off debts quicker and fills in gaps in a budget. So we can simply say that having an extra income is always useful

6 0
3 years ago
Read 2 more answers
It takes 22 hours for a hosepipe with a flow of 12 litres per minute to fill a swimming pool. How long will it take if its flow
Monica [59]

Answer:

t2 = 52.8 hours

it will take 52.8 hours if its flow is reduced to 5 litres per minute.

Step-by-step explanation:

The volume of the swimming pool can be written as;

Volume V = flow rate × time

V = R×t

V = R1×t1 = R2×t2

R1×t1 = R2×t2

t2 = R1×t1/R2 ........1

Given;

Flow rate R1 = 12 litres per minute

Flow rate R2 = 5 litres per minute

time t1 = 22 hours

Substituting the given values into equation 1;

t2 = R1×t1/R2 = 12×22/5

t2 = 52.8 hours

it will take 52.8 hours if its flow is reduced to 5 litres per minute.

3 0
3 years ago
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