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2 years ago

Which of the following numerical expressions has the least value?

Mathematics

2 answers:

sesenic [268]2 years ago

8 0

Step-by-step explanation:

A Will be 29

B Will be 26

C Will be 45

D Will be 70

So B

Delicious77 [7]2 years ago

4 0

It would be c because 2+3+4 is 9x5 is 45 which is the lowest value

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The table shows information about some children.

Sindrei [870]

Answer:

$P(Age\ 12) = \frac{2}{3}$

Step-by-step explanation:

Given

Age 11 Age 12 Total

Girls 3 5 8

Boys 1 3 4

Required

$P(Age\ 12)$

The number of aged 12 children is:

$Age\ 12 = 5 + 3$

$Age\ 12 = 8$

The total number of children is:

$Total=8+4$

$Total = 12$

So, we have:

$P(Age\ 12) = \frac{Age\ 12}{Total}$

$P(Age\ 12) = \frac{8}{12}$

Simplify

$P(Age\ 12) = \frac{2}{3}$

3 0

3 years ago

I donot understand at all

loris [4]

Answer:

sorry i dont understand either!!!

Step-by-step explanation:

8 0

3 years ago

In circle A, arc CD is congruent to arc BD. What is the measure of arc CD?

aleksandr82 [10.1K]

Check the picture below.

4 0

3 years ago

The answer is ?<br> Because im trying to find out

Elodia [21]

Answer:

Where is the question?

Step-by-step explanation:

I can't answer without the question sorry... but please give me thanks I just started brainly and a brainliest would be amazing. Thank you guys in advance.

6 0

3 years ago

In a sample of 388 people in a certain, 22% had red hair. Find a 99% confidence interval for the proportion of people in the cou

Anit [1.1K]

Answer: (0.1658, 0.2742)

Step-by-step explanation:

Formula to find the confidence interval for population proportion is given by :-

$\hat{p}\pm z^*\sqrrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

, where n= sample size

z*= Critical value

$\hat{p}$ = sample proportion.

As per given , we have

Significance level : $\alpha=1-0.99=0.01$

According to z-table, Critical value for 99% confidence interval : z*=2.576

Let p be the proportion of people in the country that have red hair.

n= 388

$\hat{p}=0.22$

Now, required confidence interval for proportion of people in the country that have red hair will be :-

$0.22\pm (2.576)\sqrt{\dfrac{0.22(1-0.22)}{388}}$

$0.22\pm (2.576)\sqrt{0.000442268}$

$0.22\pm (2.576)(0.02103)$

$(0.22-0.05417328,\ 0.22+0.05417328 )=(0.16582672,\ 0.27417328)\\\\\approx(0.1658,\ 0.2742)$

The 99% confidence interval for the proportion of people in the country that have red hair= (0.1658, 0.2742)

8 0

2 years ago