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eduard
2 years ago
6

I need to know the answer ASAP thank you

Mathematics
1 answer:
ElenaW [278]2 years ago
3 0

Answer:

Step-by-step explanation:

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What is constant of proportionality ? y=14x k=?​
Delvig [45]

Answer: I believe that its 14

Step-by-step explanation:

6 0
3 years ago
there are 267 students and 21 adults goin on a school trip. an equal number of people will ride on each bus. if there are 9 buse
Hunter-Best [27]
267+21 = 288
288/9 = 32

the answer is 32 people will ride on each bus
4 0
3 years ago
Read 2 more answers
A random sample of 144 recent donations at a certain blood bank reveals that 81 were type A blood. Does this suggest that the ac
Reptile [31]

Answer:

Null hypothesis:p=0.4  

Alternative hypothesis:p \neq 0.4

z=\frac{0.5625 -0.4}{\sqrt{\frac{0.4(1-0.4)}{144}}}=3.98  

p_v =2*P(z>3.98)=0.0000689  

Since the p value is very low compared to the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true percent of people with type A of blood is significantly different from 0.4 or 40%

Step-by-step explanation:

Information given

n=144 represent the random sample taken

X=81 represent the number of people with type A blood

\hat p=\frac{81}{144}=0.5625 estimated proportion of  people with type A blood

p_o=0.4 is the value that we want to verify

\alpha=0.01 represent the significance level

z would represent the statistic

p_v{/tex} represent the p value Hypothesis to testWe want to test if the percentage of the population having type A blood is different from 40%.:  Null hypothesis:[tex]p=0.4  

Alternative hypothesis:p \neq 0.4  

the statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.5625 -0.4}{\sqrt{\frac{0.4(1-0.4)}{144}}}=3.98  

Now we can calculate the p value with this probability taking in count the alternative hypothesis:

p_v =2*P(z>3.98)=0.0000689  

Since the p value is very low compared to the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true percent of people with type A of blood is significantly different from 0.4 or 40%

3 0
3 years ago
What is the most profound problem in maths?<br> No answer needed, just take the points.
satela [25.4K]

Answer:

SWEEEET!!

Step-by-step explanation:

:D

7 0
2 years ago
Read 2 more answers
I dont understand this question <br><br> 2.45 x 2.69 x 86.3
Tasya [4]

Answer:

The answer is 568.76 if u want rounded and 568.76015

Step-by-step explanation:

Because when you multiply them you get the answer. Much easier if you line them up.





Plzzz give thanks and give brainlest

7 0
3 years ago
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