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3 years ago

Find the least number which must be subtracted from each of the following numbers

Mathematics

1 answer:

Andre45 [30]3 years ago

6 0

Answer:

53 to be subtracted to make it a perfect square.

Square root of 1936 = 44.

Step-by-step explanation:

Please mark as brainliest

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. A discount brokerage selected a random sample of 64 customers and reviewed the value of their accounts. The mean was $32,000 w

koban [17]

Answer:

The 90% confidence interval is $\$ \ 30313.9< \mu < \$ \ 33686.13$

Step-by-step explanation:

From the question we are told that

The sample size is n = 64

The sample mean is $\= x = \$ 32, 000$

The standard deviation is $\sigma= \$ 8, 200$

Given that the confidence interval is 90% then the level of significance is mathematically evaluated as

$\alpha = 100 - 90$

$\alpha = 10 \%$

$\alpha = 0.10$

Next we obtain the critical value of $\frac{ \alpha }{2}$ from the normal distribution table , the value is

$Z_{\frac{\alpha }{2} } = 1.645$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{ \sigma }{ \sqrt{n} }$

=> $E = 1.645 * \frac{ 8200 }{ \sqrt{64} }$

=> $E = 1686.13$

The 90% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $32000 - 1689.13 < \mu < 32000 + 1689.13$

=> $\$ \ 30313.9< \mu < \$ \ 33686.13$

5 0

4 years ago

Avni designs a game in which a player either wins or loses 4 points during each turn. Which equation represents all numbers of p

Ierofanga [76]

Answer:

C |p| = 4

Step-by-step explanation:

If a player wins 4points during each turn, then, the total points will be +4points

If the player looses 4points, total points lost will be -4points

The total number of point p the player can have will be represented as;

|p| = 4 (since is both positive and negative 4 )

Note that the nodulus of a variable will return both positive and negative value of that variable

6 0

3 years ago

The size of the bulletin board is 8.47m. The teacher wants to divide it into 7 sections. What will be the size of each section?

Harrizon [31]

Answer:

the bulletin board will be 1.21 M

4 0

3 years ago

In a class with 42 students, 22 like blue and 27 like red. If 6 no like either colours. Find :- a) How many students like both r

andrezito [222]

27+22=49

so your question doesnt really make sense, can u re-word it and make sure your problem is correct

7 0

3 years ago

Read 2 more answers

Please help me!!!!!!!!!!!!!!!!!!!!!!!

MAXImum [283]

Answer:

120(I'm not definitely sure)

Step-by-step explanation:

IQR= Q3- Q1= 170 - 50 = 120

8 0

2 years ago