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xenn [34]
3 years ago
5

The sum of two odd numbers is 42. They are both prime numbers, and the difference of the two numbers is 16. What are the two num

bers?
A. 20 and 22

B. 17 and 25

C. 9 and 33

D. 13 and 29
Mathematics
2 answers:
weqwewe [10]3 years ago
6 0
The answer is D 29-13 is 16 and they both add up to 42
Inga [223]3 years ago
4 0
The answer is D. 13 and 29. Hope this helps!
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Gibbs Baby Food Company wishes to compare the weight gain of infants using its brand versus its competitor’s. A sample of 40 bab
Leviafan [203]

Answer:

z=\frac{(7.6-8.1)-0}{\sqrt{\frac{2.3^2}{40}+\frac{2.9^2}{55}}}}=-0.936  

The p value can be founded with this formula:

p_v =P(z  

Since the p value is higher than the significance level provided of 0.05 we have enough evidence to FAIL to reject the null hypothesis and we can't conclude that the true mean for the Gibbs brand is significantly lower than the true mean for the competitor

Step-by-step explanation:

Information given

\bar X_{1}=7.6 represent the mean for Gibbs products

\bar X_{2}=8.1 represent the mean for the competitor

\sigma_{1}=2.3 represent the population standard deviation for Gibbs

\sigma_{2}=2.9 represent the sample standard deviation for the competitor

n_{1}=40 sample size for the group Gibbs

n_{2}=55 sample size for the group competitor

\alpha=0.05 Significance level provided

z would represent the statistic

Hypothesis to verify

We want to check if babies using the Gibbs brand gained less weight, the system of hypothesis would be:  

Null hypothesis:\mu_{1}-\mu_{2}=0  

Alternative hypothesis:\mu_{1} - \mu_{2}< 0  

The statistic would be given by:

z=\frac{(\bar X_{1}-\bar X_{2})-\Delta}{\sqrt{\frac{\sigma^2_{1}}{n_{1}}+\frac{\sigma^2_{2}}{n_{2}}}} (1)  

Replacing the info given we got:

z=\frac{(7.6-8.1)-0}{\sqrt{\frac{2.3^2}{40}+\frac{2.9^2}{55}}}}=-0.936  

The p value can be founded with this formula:

p_v =P(z  

Since the p value is higher than the significance level provided of 0.05 we have enough evidence to FAIL to reject the null hypothesis and we can't conclude that the true mean for the Gibbs brand is significantly lower than the true mean for the competitor

5 0
3 years ago
Someone help plz!! I will give Brainlist!
ElenaW [278]

Answer: -3

mark me brainiest very easy  answer

8 0
3 years ago
The card states that it serves 10 people. How much flour is required to make enough bread for 30 people?​
topjm [15]

Answer:

4.5 C

Step-by-step explanation:

10x 3 =30

1.5 c × 3 =4.5

3 0
3 years ago
HELP!! Which pair of statements is true
vitfil [10]

Answer:

B

Step-by-step explanation:

If A = {1, 2, 3} and B = {1, 2, 3, 4, 5}

We say that A is a subset of B, since every element of A is also in B.

So

If set A is all odd numbers then R belongs to A bcz all the elements of R are odd numbers

3 0
3 years ago
Right now, I am adding fractions, what number can you use to simplify 55/48?
Brrunno [24]

You can't its already simplified


5 0
3 years ago
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