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stiv31 [10]
3 years ago
5

Choose the correct symbol for interval notation when a value is to be included in the solution.

Mathematics
2 answers:
RoseWind [281]3 years ago
4 0
Choose the correct symbol for interval notation when a value is to be included in the solution
A. Parenthesis



ex

you had
x3 when x=8

it will be

(8)3
WINSTONCH [101]3 years ago
4 0

Answer:

parenthesis

Step-by-step explanation:

that is what should be included in the solution

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Determine the point estimate of the population proportion and the margin of error for the following confidence interval.Lower bo
Kamila [148]

Answer: The point estimate of the population proportion is . 485.​

The margin of error is 0.273.​

Step-by-step explanation:

Confidence interval for population proportion(p):

sample proportion ± Margin of error

Given:  Lower bound of confidence interval  = 0.212

Upper bound = 0.758

⇒sample proportion - Margin of error=0.212  (i)

sample proportion + Margin of error= 0.758  (ii)

Adding (i) and (ii) , we get

2(sample proportion) =0.970

⇒ sample proportion = 0.970÷2= 0.485

Since sample proportion is the point estimate of the population proportion.

So, the point estimate of the population proportion=  0.485

Now put sample proportion =0.485 in (ii), we get

0.485+ Margin of error= 0.758

⇒  Margin of error= 0.758 - 0.485 =0.273

i.e. The margin of error is 0.273.​

5 0
3 years ago
Select an equation that is equivalent to a^2-144b^2 a) (a-12b)^2 B) (a+12b)^2 C) (a-12b)(a+12b) C) a^2-24ab+144b^2
Nataliya [291]

Answer:

C) (a-12b)(a+12b)

Step-by-step explanation:

a^2-144b^2 = (a-12b)(a+12b)

This is the formula that when two terms squared are written with a minus sign between them their factors are the product of the original numbers once with a plus sign and once with the minus sign.

This can be explained by multiplying them.

                (a-12b)

<u>                 *(a+12b)         </u>

                  a²- 12ab

  <u>                     +12ab - 144b²      </u>

<u>                     a²    +0    - 144b²    </u>

We see we get the same answer as applying the formula above.

4 0
2 years ago
Cecilia ordered 5 pizza for a group of friends. Each pizza had 8 slices. All but 3 slices were eaten. How many slices were eaten
UkoKoshka [18]

Answer:

37 (hope this helps :)

Step-by-step explanation:

8 slices per pizza

5 pizzas

8 * 5 = 40

40 - 3 = 37

37 slices of pizza were eaten. and 3 slices were not eaten

3 0
3 years ago
Marking Brainliest ! Answer quickly
Alex

Answer:

5/7

Step-by-step explanation:

20/28=5/7

Hoped i answered u

4 0
3 years ago
Read 2 more answers
the ratio of seniors to juniors in the math club is 2:3. If there are 21 juniors, how many seniors are in the club?
Bond [772]

Answer:14

Step-by-step explanation:

1. Ratio : 2:3

2. Multiply the number of juniors by the Ratio

(2/3)(21)

3. Solve for answer

Answer: 14

8 0
3 years ago
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