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2 years ago

8

F(6) if f(x) = x2 - 5.

1 answer:

andriy [413]2 years ago

8 0

$f(6) = (6)2 - 5 = 12 - 5 = 7 \\ \\ therefore \: f(6) = 7$

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Step-by-step explanation:

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A sequence starts from -2. The term to term rule is 'square and subtract 3' find the first six numbers of the sequence

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Answer:

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Step-by-step explanation:

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2 years ago

there are 148 juniors and 272 seniors attending prom this year. if there must be three chaperones per 60 students, how many chap

valkas [14]

21 chaperones are needed for 420 students.

Step-by-step explanation:

No. of juniors = 148

No. of seniors = 272

Total = 148+272 = 420 students

3 chaperones = 60 students

1 chaperone = $\frac{60}{3}=20\ students$

Ratio of chaperon to students = 1:20

Let,

x be the number of chaperons for 420 students.

Ration of chaperones to students = x:420

Using proportion

Ratio of chaperones to students :: Ratio of chaperons to students

$1:20::x:420$

Product of mean = Product of extreme

$20*x=420*1\\20x=420\\$

Dividing both sides by 20

$\frac{20x}{20}=\frac{420}{20}\\x=21$

21 chaperones are needed for 420 students.

Keywords: ratio, proportion

Learn more about ratios at:

#LearnwithBrainly

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3 years ago