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LiRa [457]
3 years ago
8

Please help I dont understand ​

Mathematics
1 answer:
Studentka2010 [4]3 years ago
7 0

Step-by-step explanation:

When it says y varies directly with x it just means that y and x are proportional/equal to each other. The constant of variation and the constant of proportionality are the same thing just different way of saying it so they can confuse you and make your life miserable. Since y and x are proportional to each other and the constant of proportionalty is -5 to make an equation that represents a line you use the formula y=mx+b. That is the slope of the line. With that formula let's first plus in the x so we have y=m2+b. The formula for direct variation is y=kx as well that's good to know and it's good to memorize all these formulas. Math becaomes easier when you have the process down pat and you just need to plug numbers into different equations, expressions, and scenarios. Do m = [y1 - y2] / [x1 - x2] and you'll get the answer.

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What is a coefficient? Give me an example.
aksik [14]

Answer:

A coefficient is the number next to a letter. It's used to multiply a variable. If there is just a variable then the coefficient is 1. For example 6x.

Step-by-step explanation:

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3 years ago
If elephant grass grows 2 1/3 inches a day, how many inches will it grow in 8 days?
geniusboy [140]

2 1/3 * 8 = 16 8/3 or 18 2/3 inches in 8 days.

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4 years ago
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Which is an irrational number?
chubhunter [2.5K]

Answer:

√21

Step-by-step explanation:

<u><em>Irrational number:-</em></u>

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7 0
3 years ago
What is 125% of 332?
bagirrra123 [75]

Answer:

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Step-by-step explanation:

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Change to decimal form

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7 0
3 years ago
What is the x-coordinate of the midpoint of the segment whose endpoints are<br> (2, 3) and (-5, 5)?
ArbitrLikvidat [17]

Answer:

(-3/4, 4)

Step-by-step explaination:

add 2 and -5 then divide them by two and get

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then add 3 and 5 divide them by two and get

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But as long as you remember that you're averaging the two points' x- and y-values, you'll do fine. It won't matter which point you pick to be the "first" point you plug in. Just make sure that you're adding an x to an x, and a y to a y.

so therefore the answer is (-3/4, 4)

7 0
3 years ago
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