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Anestetic [448]
4 years ago
14

4 less than a number n is - 15 as a equation

Mathematics
2 answers:
Nikitich [7]4 years ago
7 0

Answer:

I believe the equation would be n - 2 = -15.

Step-by-step explanation:

"4 less than a number (n)" is subtraction. You can write it as "n minus 4". "is -15" means this is the difference. This can also be written as "equals -15".

n - 4 = -15

Hope this helps,

♥<em>.A.W.E</em><u><em>.S.W.A.N.</em></u>♥

kykrilka [37]4 years ago
7 0

Answer:

n - 4 = 15; n = 19

Step-by-step explanation:

Let n be the number. If 4 is less than the number n, mathematically, it means n-4. If the resulting equation is 15, it will give us;

n-4 = 15

n = 15+4

n = 19

The required equation is n-4 = 15

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A group of entomologists has determined that the population of ladybugs at a local park can be modeled by the equation y = − 1.4
Oksanka [162]
<h3>Answer:</h3>

A) 177.568 thousand.

B) 125.836 thousand.

<h3>Step-by-step explanation:</h3>

In this question, it is asking you to use the equation to find the population of ladybugs in a certain year.

Equation we're going to use:

y = -1.437 x + 197.686

We know that the "x" variable represents the number of years since 2010, so that means our starting year is 2010.

Lets solve the question.

Question A:

We need to find the ladybug population is 2024.

2024 is 14 years after 2010, so our "x" variable will be replaced with 14.

Your equation should look like this:

y = -1.437 (14) + 197.686

Now, we solve.

y = -1.437 (14) + 197.686\\\\\text{Multiply -1.437 and 14}\\\\y=-20.118+197.686\\\\\text{Add}\\\\y=177.568

You should get 177.568

This means that the population of ladybugs in 2024 is 177.568 thousand.

Question B:

We need to find the ladybug population is 2060.

2060 is 50 years after 2010, so the "x" variable would be replaced with 50.

Your equation should look like this:

y = -1.437 (50) + 197.686

Now, we solve.

y = -1.437 (50) + 197.686\\\\\text{Multiply -1.437 and 50}\\\\y=-71.85+197.686\\\\\text{Add}\\\\y=125.836

This means that the population of ladybugs in 2060 would be 125.836 thousand.

<h3>I hope this helped you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>
7 0
4 years ago
Which graph represents an exponential function?
Kobotan [32]

Answer:

The second one

Step-by-step explanation:

If you know about hyper and Para bolas then the second one also know as a frowny fave parabola is a function

3 0
3 years ago
To increase attendance for a flower show, flower shops in the area offered discount coupons to their customers. Show attendance
VladimirAG [237]

Answer:

The statement which could explain the effect of confounding is:

Because the weather was generally better this year compared to last year, the attendance may have increased.

Step-by-step explanation:

A confounding variable has some effect on the dependent variable.  Confounding variables are the variable(s) that are additional to the independent and dependent variables in an experiment.  Since the presence of confounding variables affect the variables being studied so that the results do not reflect the actual relationship, it is best to exclude or control them through randomization, restriction, and matching.

8 0
3 years ago
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frosja888 [35]

Answer:

Range:y\leq5

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4 0
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A C B, X Z Y
Neporo4naja [7]

Answer:

Yes.

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Step-by-step explanation:

There's enough information provided in the diagram above for us to prove that ∆CAB is congruent to ∆XYZ.

From the diagram, we cam observe the following:

<A ≅ <Y

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5 0
3 years ago
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