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nata0808 [166]
3 years ago
14

The answers to both of the questions

Mathematics
2 answers:
Ivenika [448]3 years ago
7 0
(4,6) and 7 is the answer
bixtya [17]3 years ago
3 0
What they said ☝️☝️☝️☝️☝️☝️☝️
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If Rupert does all his math quizzes, and if he scores 4 correct for every 5 questions, what will his percentage correct be?
Sauron [17]

Answer:

LOL IT'S GONNA BE 80%

Step-by-step explanation:

HOPE THIS HELPS, SORRY FOR ALL THE CAPS

5 0
3 years ago
Can you please help me please =( I beg you
emmasim [6.3K]

Answer:

I think he made a mastake a step 3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Previously, an organization reported that teenagers spent 24.5 hours per week, on average, on the phone. The organization thinks
Lena [83]

Answer:

We need to develop a one-tail t-student test ( test to the right )

We reject H₀  we find evidence that student spent more than 24,5 hours on the phone

Step-by-step explanation:

Sample size  n = 15     n < 30

And we were asked if the mean is higher than, therefore is a one-tail t-student test ( test to the right )

Population mean   μ₀  = 24,5

Sample mean   μ  =  25,7

Sample standard deviation s = 2

Hypothesis Test:

Null Hypothesis      H₀                             μ  =  μ₀

Alternative Hypothesis     Hₐ                  μ  >  μ₀

t (c) =  ?

We will define CI = 95 %  then   α = 5 %   α = 0,05    α/2 =  0,025

n = 15     then degree of freedom    df = 14

From t-student table  we get:  t(c) = 2,1448

And  t(s)

t(s) = ( μ  -  μ₀  ) / s/√n

t(s) = (25,7 - 24,5) /2/√15

t(s) = 2,3237

Now we compare   t(c)   and  t(s)

t(c)  =  2,1448         t(s)  = 2,3237

t(s) > t(c)

Then we are in the rejection region we reject H₀   we have evidence at 95% of CI that students spend more than 24,5 hours per week on the phone

8 0
3 years ago
Which equation has the same solution as x2 – 6x – 14 = 0?
grandymaker [24]
4x would be your answer
4 0
3 years ago
What is the range of h (x)
Svet_ta [14]

The range of the function is the set of all possible outputs, that is, the set of all values obtained by applying the function to elements of the domain. So the set of all values which can be obtained by applying h(x) to an element of its domain is {−4,0,5,60} , and thus that is the range of h(x) .
6 0
3 years ago
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