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2 years ago

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A set of data is normally distributed with a mean of 86 and a standard deviation of 1.5. What percent of the data is in the inte

rval 86-87.5? a 68.3 c. 34.15% b. 47.75 d. 49.85% Please select the best answer from the choices provided

1 answer:

kodGreya [7K]2 years ago

5 0

Answer:

Hey mate here's your answer ⤵️

Option C

<h2>Hope it was helpfulll</h2>

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Find the value of x. Round the length to the nearest tenth.

Virty [35]

Answer:

5.1

Step-by-step explanation:

$tan \ 25 = \frac{opposite \ side}{adjacen \ side}\\\\tan \ 25 =\frac{x}{11}\\\\0.4663 =\frac{x}{11}$

0.4663 * 11 = x

x = 5.1293

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3 years ago

A company provides a monthly pension to its employees. A person retiring at 62 retires and receives a full monthly pension. If t

IRISSAK [1]

Answer:

<em><u>The reduction is 8.6%</u></em>

Explanation:

Call F the full monthly pension of a person retiring at 62.

If a person continues to work the pension grows at a rate of 6% per year, compounded monthly, so use the compounded growing formula:

$Pension=F(1+r/12)^{12t}$

Where r = 6 / 100 = 0.06, and t = number of years after retirement.

<u>For retirement at 65.5</u>:

t = 65.5 - 62 = 3.5

$Pension=F(1+0.06/12)^{12\times 3.5}=1.233F$

<u>For retirement at 67</u>:

t = 67 - 62 = 5

$Pension=F(1+0.06/12)^{12\times 5}=1.349F$

<u>Percent reduction of people who retire at 65.5 compared to what they would receive at 67</u>:

$(1.349F-1.233F)\times 100/(1.349F)=8.6\%$

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3 years ago

What is 2.13 times 0.197

irina [24]

Answer:

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Step-by-step explanation:

Line the numbers up, multiply, move the decimal five times to the left.

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3 years ago

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Alika [10]

Answer:

x = 4

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Step-by-step explanation:

Here, we want to solve the system of equation using elimination method

We have this as follows;

3x + y = 13

4x- 3y = 13

Multiply equation 1 by 3

9x + 3y = 39

4x-3y = 13

Add the two equations

13x = 52

x = 52/13

x = 4

From equation 1;

3x + y = 13

y = 13-3x

y = 13-3(4)

y = 13-12 = 1

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2 years ago

How can you explain the answer 4 divided by 5

Sergio [31]

Answer:

4 divided by 5 is equal to 0.8. This decimal can also be written as a fraction. 0.8 = eight tenths or 8/10 (4/5 in its reduced form).

Step-by-step explanation:

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2 years ago

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