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mario62 [17]
3 years ago
11

Find all real values of x that satisfy the equation x^2 - 7x = 98.

Mathematics
1 answer:
kobusy [5.1K]3 years ago
4 0

Answer: x=14,-7

Step-by-step explanation:

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3. If a + b = C, which of the following statements is true?
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Answer:

first one

Step-by-step explanation:

a + b = c

subtract a from both sides

b = c - a

or

c - a = b

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Is (0,1) , (1,3) , (2,5), (3,7) a function?​
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If the relationship is a proportional relationship weite an equation that where x represents the number of adults and y represen
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Answer:

y = kx

Step-by-step explanation:

In proportional relationships, the value of one variable increases as the other increases or decreases as the other decreases. It is denoted mathematically as  y ∝ x where x and y are the variables. It follows that

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So in the relationship where x represents the number of adults, and y represents the number of students,

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3 years ago
Write as an imporper fractor.5 3/5
Neporo4naja [7]
5 3/5 as an improper fraction is 28/5. 

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3 years ago
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A swim meet has 13 contestants signed up for the 100-meter butterfly event. The first heat has 6 swimmers. How many different wa
tino4ka555 [31]

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6 swimmers in the first heat can be arranged in 1716 different ways.

Step-by-step explanation:

A swim meet has 13 contestants signed up. To calculate the arrangement of first 6 swimmers in first heat we will use combinations because order doesn't matter.

So to select 6 swimmers out of 13 contestants number of different ways

= ^{13}C_{6}

= \frac{13!}{(6!)(13-6)!}

= \frac{13\times 12\times 11\times 10\times 9\times 8\times 7!}{6!\times 7!}

= \frac{13\times 12\times 11\times 10\times 9\times 8}{6\times 5\times 4\times 3\times 2\times 1}

= \frac{1235520}{720}

= 1716

Therefore, 6 swimmers in the first heat can be arranged in 1716 different ways.

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2 years ago
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