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3 years ago

5

Peyton already has 15 dollars. Every hour (x) that she works at the corner store, she earns another 3 dollars (y). How many tota

l dollars will Peyton have after 15 hours of work?

2 answers:

const2013 [10]3 years ago

8 0

Answer:

$60 dollars

Step-by-step explanation:

x axis is hours spent and y axis is $3 + dollars earned so 15*3 =45 +15 = 60

balu736 [363]3 years ago

8 0

I believe the answer is $60

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Some of the highest tides in the world occur in the Bay of Fundy on the Atlantic Coast of Canada. At Hopewell Cape the water dep

BlackZzzverrR [31]

Answer:

$y = 5cos(\frac{\pi }{12}(t-6.75))+7$

Step-by-step explanation:

You have been asked to find the values in the function:

$y=Acos(B(t+C))+D$

First, calculate A, called the amplitude, as half the value from peak to peak (from lowtide to high tide):

$A = (12-2)/2=5$

Then, calculate the vertical shift D as the average value between the high tide and lowtide:

$D = (12+2)/2=7$

Then, if P is the natural period of the tide, you can calculate B, or the frequency as:

$B=\frac{\pi }{P}=\frac{\pi }{12}$

Finally you need to find C or the phase shift thinking that for negative values, the function is shifted (displaced) to the right.

C=-6.75

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3 years ago

The cost of producing a new watch is $50. At a price of $100, watches will most likely be ____ and ____.

professor190 [17]

<span>The cost of producing a new watch is $50. At a price of $100, watches will most likely be sold and good.</span>

7 0

3 years ago

Babies born after a gestation period of 32-35 weeks have a mean weight of 2700 grams and a standard deviation of 700 grams, whil

Nutka1998 [239]

Answer:

The 33 week gestation period baby has the higher z-score, so he weighs more relative to other babies of the same gestation period.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Who weighs more relative to other babies of the same gestation period?

Whoever has the higer z-score

33 - week baby.

Babies born after a gestation period of 32-35 weeks have a mean weight of 2700 grams and a standard deviation of 700 grams. A 33-week gestation baby weighs 2950 grams.

We have to find z when $\mu = 2700, \sigma = 700, X = 2950$ . So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{2950 - 2700}{700}$

$Z = 0.357$

40-week baby

Mean weight of 3000 grams and a standard deviation of 490 grams. 40-week gestation baby weighs 3150 grams.

We have to find Z when $\mu = 3000, \sigma = 490, X = 3150$ . So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{3150 - 300}{490}$

$Z = 0.306$

The 33 week gestation period baby has the higher z-score, so he weighs more relative to other babies of the same gestation period.

6 0

4 years ago

Need help please help

lilavasa [31]

Answer:

27 of the pets are dogs.

Step-by-step explanation:

Real easy way to do this, treat 45 (the total) as 100. So, do 45/100 then multiply the result of that by 60, and you end up with 27.

45/100=0.45

0.45*60=27

7 0

3 years ago

What type of property is 6+(7+x)=(6+7)+x

lawyer [7]

Not sure, but I would rather not leave this question blank. Please refer to the picture to help

6 0

3 years ago

Read 2 more answers