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asambeis [7]
3 years ago
12

If it took 3 people 10 hours to plant a large garden, how long would it take one person? plzz help

Mathematics
2 answers:
ivanzaharov [21]3 years ago
6 0
30 hours. hope this helps :)
liubo4ka [24]3 years ago
6 0

Answer:

30 hours bro good luck man

You might be interested in
The graph of the function has slope of 1 and y-intercept of -6.​
True [87]

Answer:

= -5

Step-by-step explanation:

1-6=5

1-6

{Subtract the numbers:} 1-6=-5

= -5

6 0
2 years ago
After a college football team once again lost a game to their archrival, the alumni association conducted a survey to see if alu
valentina_108 [34]

Answer:

P-value for this hypothesis test is 0.00175.

Step-by-step explanation:

We are given that the alumni association conducted a survey to see if alumni were in favor of firing the coach.

A simple random sample of 100 alumni from the population of all living alumni was taken. Sixty-four of the alumni in the sample were in favor of firing the coach.

<u><em>Let p = proportion of all living alumni who favored firing the coach</em></u>

SO, Null Hypothesis, H_0 : p = 0.50   {means that the majority of alumni are not in favor of firing the coach}

Alternate Hypothesis, H_A : p > 0.50   {means that the majority of alumni are in favor of firing the coach}

The test statistics that will be used here is <u>One-sample z proportion</u> <u>statistics</u>;

                                  T.S.  = \frac{\hat p-p}{{\sqrt{\frac{\hat p(1-\hat p)}{n} } } } }  ~ N(0,1)

where, \hat p  = sample proportion of the alumni in the sample who were in favor of firing the coach = \frac{64}{100} = 0.64

            n = sample of alumni = 100

So, <em><u>test statistics</u></em>  =  \frac{0.64-0.50}{{\sqrt{\frac{0.64(1-0.64)}{100} } } } }

                               =  2.92

<u>Now, P-value of the hypothesis test is given by ;</u>

         P-value = P(Z > 2.92) = 1 - P(Z \leq 2.92)

                                             = 1 - 0.99825 = 0.00175

Therefore, the P-value for this hypothesis test is 0.00175.

4 0
3 years ago
Evaluate the expression when x =19 and y =7
PtichkaEL [24]

Answer:

Plug in X and Y by replacing the given numbers where you see letters.

Step-by-step explanation:

What I said above.

3 0
3 years ago
What is the slope of the graph?
Nookie1986 [14]

Answer: The slope is \frac{3}{5}

Step-by-step explanation:

The slope of a line can be calculated with the following formula:

m=\frac{y_2-y_1}{x_2-x_1}

Observe the graph provided in the exercise.

You can notice that these two points are on the line:

(2,3) and (7,6)

Then you can identify that:

y_2=3\\y_1=6\\\\x_2=2\\x_1=7

Knowing these coordinates, you can substitute values into the formula for calculate the slope.

Then, you get that the slope of the graph is:

m=\frac{3-6}{2-7}\\\\m=\frac{-3}{-5}\\\\m=\frac{3}{5}

4 0
3 years ago
Plz help me I’m stuck on those too
weeeeeb [17]

i got problems with tht stuff too D: i wish i was smart :P

5 0
3 years ago
Read 2 more answers
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