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denis-greek [22]
2 years ago
9

PLEASE HELP ANSWER THIS QUESTION I DON'T KNOW IT AT ALL

Mathematics
1 answer:
Lena [83]2 years ago
6 0

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

  1. Is y = 4x - 7 a linear function?
  2. Is y = 6x² - 1 a linear function?
  3. Is y = \frac{1}{2x} + 10 a linear function?

Step-by-step explanation:

  1. Yes it is - when you graph this equation, it results in a [straight] line, signalling that it is a linear function.
  2. No it's not - when you graph this equation, it results in a v- kinda shape on the graph. Linear functions are [straight] lines on a graph, and this line wasn't straight. In fact, this wasn't even a line.
  3. No it's not - when you graph this equation, it results in a bend at the origin. The line on the graph is not straight, so this is not a linear equation.

For the graphs -

  • The first one represents the linear function [y = 4x - 7]
  • The second one (that looks like an L) represents the last not linear function [y = \frac{1}{2x} + 10]
  • The third one (that looks like a V) represents the first not linear function [y = 6x² - 1]

I HOPE THIS HELPS!

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Suppose you want to throw a party. you have $214 to spend. so far you have purchased 5 decorations that each cost d dollars. whi
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Answer: 214 - 5d

Which of the following real-world scenarios could be represented by the algebraic expression 7.65 - 2p? Select all that apply.

Answers:

1) You buy 2 equally priced party favors, spending from your $7.65 gift card.

4) you give Tim twice the amount of face paint he had from your supply of 7.65 ounces.

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Answer: 12/g

(these are the rest of the answers for the rest of the 7 slides of "Writing expression" assignment on e2020

4th: $25 dollars is the constant team so the cost for h hours is 15h and the correct expression is 15h+25 and 15(h+25) would be interpreted as adding 25 hours to the number of hours rented, and then multiplying by 15.

5th: m + 2m - s

6th: No it's not true. Each table began with x/8 balloons. If two pop then you will not be able to distribute it equally among 8 tables. There are x/8 - 2 balloons left. Not all tables will be equal.

7th: n - (1/4)n - 15

8th: 12n/r

9th: (x+3)/5

10th: (3r)/2 is what the second DJ had. 3 times as many songs as 3r and half as many is translated as division to 2 so half as many is translated as multiplication by 1/2. So therefore, the second DJ had (3r)/2 songs.

Step-by-step explanation:

8 0
3 years ago
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Using appropriate properties , find 7/5 × 5/12 − 3/12 × 7/5 − 1/15
Mazyrski [523]

Answer:

\frac{1}{6}

Step-by-step explanation:

\frac{7}{5}  \times  \frac{5}{12}  -  \frac{3}{12}  \times  \frac{7}{5}  -  \frac{1}{15}  =  \frac{7}{5} ( \frac{5}{12}   -  \frac{3}{12} ) -  \frac{1}{15}  =  \frac{7}{5}  \times  \frac{1}{6}  -  \frac{1}{15}  =  \frac{7}{30}  -  \frac{2}{30}  =  \frac{5}{30}  =  \frac{1}{6}

8 0
2 years ago
O is the center of the circle. Assume that lines that appear to be tangent are tangent. What is the value of x?
Anna [14]

Answer:

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Step-by-step explanation:

We know that radius of a circle is perpendicular to the tangent of the circle at the point of contact.

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4 0
3 years ago
The volume of a box (v) varies directly with its length (l) if one of the boxes has a volume of 325 cubic inches and a length of
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Answer:

The constant of proportionality for the group of boxes is: 25

Step-by-step explanation:

Proportion means that change in one quantity causes change in other quantity. Direct variation means that increase in one quantity causes increase in the other quantity.

Let l be the length and v be the volume

Then according to given statement

V∝l

Removing the proportionality symbol introduces a constant in the equation

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Putting V = 325 and l = 13

325 =k(13)\\k = \frac{325}{13}\\k = 25

Hence,

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5 0
3 years ago
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melisa1 [442]

Answer:

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Step-by-step explanation:

Solve for y:

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Hint: | Isolate terms with y to the left-hand side.

Subtract 20 from both sides:

-4 y = -x - 20

Hint: | Solve for y.

Divide both sides by -4:

Answer: y = x/4 + 5

5 0
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