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Anvisha [2.4K]
3 years ago
13

F(x) = 3(x - 5)(x + 2), then f(5) = and f(-2) =

Mathematics
1 answer:
Nutka1998 [239]3 years ago
5 0

Answer:

0

Step-by-step explanation:

Put x as 5 and solve.

3(5 - 5)(5 + 2)

3(0)(5 + 2)

3(0)(7)

= 0

Put x as -2 and solve.

3(-2 - 5)(-2 + 2)

3(-7)(0)

= 0

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The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of
valina [46]

Answer:

(221.39, 300.61) and (255.2223, 266.7777)

Step-by-step explanation:

Given that X, the  lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of 17 days

Middle 98% would lie on either side of the mean with probability ±2.33 in the std normal distribution on either side of 0

Corresponding we have x scores as

Between 261-2.33*17 and 261+2.33*17

i.e. in the interval = (221.39, 300.61)

If sample size = 47, then std error of sample would be

\frac{17}{\sqrt{47} }

So 98% of pregnancies would lie between

261-2.33*\frac{17}{\sqrt{47} } and 262+2.33*\frac{17}{\sqrt{47} }

= (255.2223, 266.7777)

8 0
3 years ago
A____ function is a function that can be expressed as the quotient of two polynomial functions
r-ruslan [8.4K]

Answer:

rational function

Step-by-step explanation:

That would be a "rational function;" it's the "ratio" of two polynomial functions, with the understanding that the denominator may not be zero.

7 0
3 years ago
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If someone average free throw for basketball is 60% how many times in the next 50 tries will she make a free throw. Describe how
Anon25 [30]
So remember that percent means parts out of 100
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answer is 30 throws
4 0
3 years ago
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Fynjy0 [20]

Answer:

39

Step-by-step explanation:

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