3 years ago

NEEED HELP NOW ASAP

Mathematics

2 answers:

svetlana [45]3 years ago

6 0

Answer:

I think the answer is A

Step-by-step explanation:

Since the amp is 2pi, it is y=sin

since the period is 1 and the phase shift is -pi/3, the equation can be then y=sin(x+pi/3)

nirvana33 [79]3 years ago

4 0

Answer:

Y = -5 sin (2x -3π)

Step-by-step explanation:

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Answer:

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Step-by-step explanation

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A plumber's daily earnings have a mean of $145 per day with a standard deviation of $16.50.

avanturin [10]

Step-by-step explanation:

The plumber's daily earnings have a mean of $145 per day with a standard deviation of

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That is we want to find P(135 <X<175).

Let us convert to z-scores using

$z = \frac{x - \mu}{ \sigma}$

This means that:

$P(135 \: < \: X \: < \: 175) = P( \frac{135 - 145}{16.5} \: < \: z \: < \frac{175 - 145}{ 16.5} )$

We simplify to get:

$P(135 \: < \: X \: < \: 175) = P( - 0.61\: < \: z \: < 1.82 )$

From the standard n normal distribution table,

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To find the area between the two z-scores, we subtract to obtain:

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3 years ago