3 years ago

Help i need this asap

Mathematics

1 answer:

lions [1.4K]3 years ago

7 0

Answer:

The minimum is -4

Step-by-step explanation:

The minimum is the lowest point on the parabola

It is at (-3,-4)

The y value is the minimum of the function

The minimum is -4

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Answer:

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3 years ago

A piggy bank contains 80 nickels and dimes the value of the coins is 5.15

dimaraw [331]

Answer: the amount of dimes is $1.15 this is also equivalent to 11 dimes and an extra nickel.

Explanation:

80 nickels =$4.00
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3 years ago

He sum of 1/6, 2/3, and 1/4 is

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The LCD here is 12. Th,us, 1/6, 2/3 and 1/4 become:

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3 years ago

Read 2 more answers

QUICK If r+t = r and r−t = −s which of the following must be equal to t?

lord [1]

Answer:

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5 0

3 years ago

A binomial event has n = 60 trials. The probability of success for each trial is 0.20. Let x be the number of successes of the e

OLga [1]

Answer:

12 and 3.0984

Step-by-step explanation:

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

$\mu_{x} = np$

The standard deviation of the binomial distribution is:

$\sigma_{x} = \sqrt{np(1-p)}$

In this problem, we have that:

$n = 60, p = 0.2$

$\mu_{x} = np = 60*0.2 = 12$

$\sigma_{x} = \sqrt{np(1-p)} = \sqrt{60*0.8*0.2} = 3.0984$

So the correct answer is:

12 and 3.0984

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3 years ago