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Xelga [282]
3 years ago
9

Which of the following equations has a maximun?

Mathematics
2 answers:
dlinn [17]3 years ago
8 0

Answer:

The answer is option D.

y = - 7x² - 1

It's maximum is ( 0 , - 1)

Hope this helps you

Vedmedyk [2.9K]3 years ago
5 0

Linear functions never have maxima and minima, so a) is discarded.

In the options there are quadratic functions, they can present either a maximum or a minimum.

You can know instantly by seeing the sign of the variable {x}^{2}, <em>if positive the parabola opens up</em>, <u>then it will have a minimum</u>, <em>if negative the parabola opens down</em>, <u>having a maximum.</u>

\mathbb{ANSWER} \rightarrow \boxed{ \boxed{y =  -  {7x}^{2} - 1 }}

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krok68 [10]

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Step-by-step explanation:

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Round to estimate the quotient <br> 199,988 ÷17
Likurg_2 [28]

Answer:

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Step-by-step explanation:

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3 years ago
The amount of fence a farmer needs to create a garden with width w and length l is f = 5w + 21.
Nonamiya [84]

The formula that represents l in terms of f and w is l = (f-5w)/2

<h3>Subject of formula </h3>

This is way of representing a variable with other variables in an expression, Given the expression that represent the amount of fence a farmer needs to create a garden with width w and length

f = 5w + 2l

Make l the subject of the formula

2l = f - 5w

Divide both sides by 2

2l/2 = (f-5w)/2

l = (f-5w)/2

Hence the formula that represents l in terms of f and w is l = (f-5w)/2

Learn more on subject of formula here: brainly.com/question/657646

#SPJ1

8 0
2 years ago
Determine a pair of angles (one positive and one negative) in degree measure coterminal to the angle 117°.​
andre [41]

Answer:

Option B.

Step-by-step explanation:

When we have an angle A, in degrees, the coterminal angles are all the angles that can be written as:

B = A + n*360°

Where n is a positive or a negative integer (if n = 0, then B = A, which means that A is coterminal with itself, which is trivial).

Now we want to find two coterminal angles to 117°, such that one is positive and the other negative.

Then we can do:

for the positive one, use n = 1.

B = 117° + 1*360° = 477°

For the negative one, use n = -1

B = 117° - 1*360° = -243°

Then the two angles are 477° and -243°

The correct option is B.

4 0
3 years ago
Read 2 more answers
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