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shepuryov [24]
2 years ago
5

Is this relation a function? ​{(1,4), (-5,2), (4,1), (1,6)}

Mathematics
1 answer:
cestrela7 [59]2 years ago
7 0

Answer:

no

Step-by-step explanation:

No, it is not since 2 points have the same x-coordinate and different y-coordinates.

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7 1/2 sticks of butter are needed to make 5 cakes. How much butter is needed to make one cake?
LenaWriter [7]

Answer:

1 1/2

Step-by-step explanation:

because when you divide 7.5 by 5 you get 1.5

8 0
2 years ago
Read 2 more answers
Test the claim that the mean GPA of night students is larger than 3.1 at the .10 significance level. The null and alternative hy
Alborosie

Answer:

H 0 : μ = 3.1    H 1 : μ > 3.1

And this test is defined a a right tailed test since the symbol for the alternative hypothesis H1 is >.

t = \frac{3.13-3.1}{\frac{0.03}{\sqrt{75}}}= 8.66

df = n-1=75-1 =74

The p value is:

p_v = P(t_{74} >8.66) =3.65x10^{-13}

The significance level is: 0.1 or 10%

And since the p value is very low compared to the significance level we have enough evidence to:

Reject the null hypothesis

Step-by-step explanation:

For this case we want to test the claim that mean GPA of night students is larger than 3.1 at the .10 significance level. The claim needs to be on the alternative hypothesis so then we have the following system of hypothesis:

H 0 : μ = 3.1    H 1 : μ > 3.1

And this test is defined a a right tailed test since the symbol for the alternative hypothesis H1 is >.

We have the following info given:

\bar X = 3.13 , s =0.03 , n =75

The statistic to check the hypothesis is given by:

t = \frac{\bar X -\mu}{\frac{s}{\sqrt{n}}}

Replacing the info given we got:

t = \frac{3.13-3.1}{\frac{0.03}{\sqrt{75}}}= 8.66

The degrees of freedom are given by:

df = n-1=75-1 =74

The p value since is a right tailed ted is given by:

p_v = P(t_{74} >8.66) =3.65x10^{-13}

The significance level is 0.1 or 10%

And since the p value is very low compared to the significance level we have enough evidence to:

Reject the null hypothesis

6 0
3 years ago
I need some serious help rn, i got stuck
nordsb [41]

Answer:

I think it is add 11 both sides? If it is wrong i am sooooo sorry

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Write the number eighty seven in standard form
Alja [10]
Eighty seven written in standard form would be...
80 + 7 = 87 

Good Luck! :)
4 0
3 years ago
Read 2 more answers
Can you help my brother with this question 3 pls
cricket20 [7]
They are not equivalent fractions. You will have to turn 3/4 into an 8th, so multiply it by two, (6/8) and plot that on a graph. 
7 0
3 years ago
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