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2 years ago

What is the equation of the line shown in this graph?

Mathematics

2 answers:

UNO [17]2 years ago

6 0

Answer:

y = -4x + 1

Step-by-step explanation:

→ First as the gradient is sloping downwards, we can eliminate 2 options

B and C

→ Then substitute x = 1 into $y=-\frac{1}{4}x+1$ and $y=-4x+1\\$ and see if you get 3 as the answer

y = -4x + 1

lara [203]2 years ago

3 0

The correct answer is a

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A simple random sample of 25,000 individuals are surveyed in order to determine the prevalence of individuals that contracted th

Neko [114]

Answer:

The prevalence of flu for the past year, as indicated from the survey participants, was of 17%.

Step-by-step explanation:

Given the survey, the prevalence of the flu, as a percentage, is given by:

Number of individuals diagnosed with flu, multiplied by 100, and divided by the size of the sample.

In this question, we have that:

Sample of 25,000, and 4,250 of those had been diagnosed with the flu at some point in the past year. So, the prevalence of the flu is given by:

$\frac{4250*100}{25000} = 17$

The prevalence of flu for the past year, as indicated from the survey participants, was of 17%.

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3 years ago

Use this method to estimate the students who attend your school (or a certain building on your campus) on a given morning. Count

Karolina [17]

Answer and explanation:

The data we get from counting how many people entering a building in one minute is the sample of the population size. We do this since it would be tedious or not feasible to stand and count one by one how many people enter the building and so we do a good estimate with our one minute sample

Let's assume in one minute, 15 people enter the building and it takes one hour for everyone to enter the building

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3 years ago

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Hatshy [7]

Answer:

1, 3, and 4 would be correct answers

Step-by-step explanation:

1.) -x - 2x - 3y - 2y + 1 + 1 = -3x -5y + 2

2.) -3x + 2y + 3y + 2 = -3x + 5y + 2

3.) -3x - y - y - y - y - y + 2 = -3x - 5y + 2

4.) -x - x - x - y - y - y - y - y + 1 + 1 = -3x - 5y + 2

5.) x + x + x + y + y + y + y + y + 1 + 1 = 3x + 5y + 2

Hope this helps!

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3 years ago

A tanker of capacity 200 litres has 12.05 litres of oil. how much more oil can be poured into the tanker ?

Scilla [17]

Answer:

187.95 liters.

Step-by-step explanation:

the entire capacity of the tank is 200 liter, you subtract how much oil is in there already, you will have the remaining Of the capacity that can be added.

200 - 12.05 = 187.95

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3 years ago

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Dominik [7]

Answer:

2/10 and 0.2

Step-by-step explanation:

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3 years ago

Read 2 more answers