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Natali [406]
3 years ago
7

Plz help will mark brainliest if correct ​

Mathematics
1 answer:
andrew11 [14]3 years ago
7 0

Answer:

C.

Step-by-step explanation:

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Question: 3 of 20
zysi [14]

Answer:

Sean earns $7.5 in each hour.

Step-by-step explanation:

Given:

Money earned by Sean = $300

Number of hours worked in a day = 8 hrs

Number of days of work  in a week = 5

We need to find Money earned in each hour.

First we will find Total hours work in a week.

Total hours work in a week is equal to Number of hours worked in a day multiplied by number of days work in a week.

Framing in equation form we get;

Total hours worked in a week = 8\times5 = 40\ hrs

Now we will find money earned for each hour.

Money earned each hour will be calculated by Dividing Total Money earned in a week by Total number of hours worked in a week.

Framing in equation form we get;

Money earned each hour = \frac{300}{40} = \$7.5

Hence Sean earns $7.5 in each hour.

8 0
3 years ago
PLS HELP ME SOLVE AND PROVIDE WORK!!!! ASAP
juin [17]

Answer:

-2

Step-by-step explanation:

because it is tilted so z+4 +2 so -2+4=2

3 0
3 years ago
Which rule yields the dilation of the figure STUV centered at the origin?
Vsevolod [243]

I'm a little unsure about this one, but I believe that scale factor is the rule that yields dilution, as it specifies how the diluted figure is placed on the graphing plane.

5 0
3 years ago
A researcher would like to investigate whether or not there is a difference in IQ between Psychology and History majors. She gat
Over [174]

Answer:

Paired t test

H0 : μd = 0

H1 : μd > 0

Critical value = 3.499

Test statistic = 2.230

Reject H0 if test statistic > Critical value

Kindly check explanation.

Step-by-step explanation:

Given the data :

110 90 120 98 100 100 90 110

124 100 102 120 110 110 123 120

The hypothesis :

H0 : μd = 0

H1 : μd > 0

Tcritical value, df = n - 1 = 8 - 1 = 7

Tcritical(0.01, 7) = 3.499

The difference, d = (-14,-10,18,-22,-10,-10,-33,-10)

The test statistic :

Xdbar / Sd/√n

The mean difference, Xdbar = Σx / n = - 11.375

The standard deviation of difference, Sd = 14.431

The test statistic :

-11.375 / (14.431/√8) ;

-11.375 / 5.102

= 2.230

Decison :

Reject H0 if test statistic > Critical value

Since ; 2.230 <3.499 ;

We fail to reject the null

7 0
3 years ago
Consider the line y=-1/2x+9
lys-0071 [83]

Answer:

Parallel line: - 1/2

Perpendicular line: 2

Step-by-step explanation:

8 0
3 years ago
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