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wariber [46]
3 years ago
11

Sandra earns $15.25 for working 1 hour. How much does she earn per 4 hour?

Mathematics
2 answers:
MaRussiya [10]3 years ago
5 0

Answer:

Sandra earns $61

Step-by-step explanation:

15.25 multiplied by 4

Dmitriy789 [7]3 years ago
3 0

Answer:

$61

Step-by-step explanation:

Earning of one hour = $15.25

Earning of 4 hours = $15.25*4 =$61

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aalyn [17]

Answer: 2.14 %

Step-by-step explanation:

Given : pH measurements of a chemical solutions have

Mean :  \mu=6.8

Standard deviation : \sigma=0.02

Let X be the pH reading of a randomly selected customer chemical solution.

We assume  pH measurements of this solution have a nearly symmetric/bell-curve distribution (i.e. normal distribution).

The z-score for the normal distribution is given by :-

z=\dfrac{x-\mu}{\sigma}

For x = 6.74

z=\dfrac{6.74-6.8}{0.02}=-3

For x = 6.76

z=\dfrac{6.76-6.8}{0.02}=-2

The p-value =P(6.74

P(z

In percent, 0.0214\times=2.14\%

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6 0
3 years ago
Rewrite the following quadratic functions in intercept or factored form. Show your work.
Mariulka [41]

<u>Answer:</u>

y = 5x (x+2)

<u>Step-by-step explanation:</u>

We are given the following the quadratic function and we are to rewrite it in intercept or factored form:

y = 5x^2 + 10x

We can factorize the given expression so taking the common factors out of it to get:

y=5x^2 + 10x

y = 5x (x + 2)

Therefore, the factored form of the given quadratic function is y = 5x (x+2).

4 0
3 years ago
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8 1/5 + (4 2/5 + 3 3/10
leonid [27]

Answer:

15 and 9/10 or 15.9

Step-by-step explanation:

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8_1/5 = 8_2/10

8_2/10 + 7_7/10 = 15 9/10

or 15.9

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3 years ago
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astraxan [27]

Answer:

no

Step-by-step explanation:

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2 years ago
Pls help me someone this is annoying me
Anni [7]

Answer:

They are both 42 cm

Step-by-step explanation:

8 0
2 years ago
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