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tensa zangetsu [6.8K]

2 years ago

7

This is a geometry question, please help me asap!!

1 answer:

stiv31 [10]2 years ago

8 0

Answer: X= 54.9 mm
Explanation: honestly I would never know how to do this and I don’t know how to do this I just put it into a triangle generator and it gave me the correct answer I promise its right

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a coin purse contains 3 quarters, 2 dimes, 1 nickle, and 4 pennies. what is the probability of selecting a nickle, then a dime w

mixer [17]

Answer:

.0222

The probability of selecting a nickle then a dime without replacement is 2.22%.

(1/10)*(2/9)= .0222

5 0

3 years ago

Question 3 A study was performed to determine whether men and women differ in their repeatability in assembling components on pr

Fed [463]

Answer:

There is no sufficient evidence to support the claim that men and women differ in repeatability for this assembly task

Step-by-step explanation:

Given

Let subscript 1 represent men and 2 represent women, respectively.

$n_1 = 25$

$n_2 = 21$

$s_1 = 0.98$

$s_2 = 1.02$

$\alpha = 0.02$

Required

Determine if here is enough evidence

First, we need to state the hypotheses

$H_o: \sigma_1^2 = \sigma_2^2$

$H_1: \sigma_1^2 \ne \sigma_2^2$

Next, calculate the test statistic using:

$F = \frac{s_1^2}{s_2^2}$

$F = \frac{0.98^2}{1.02^2}$

$F = 0.923$

Calculate the rejection region;

But first, calculate the degrees of freedom

$df_1 =n_1 - 1$

$df_1 =25 - 1$

$df_1 =24$

$df_2 = n_2 -1$

$df_2 = 21 - 1$

$df_2 = 20$

Using the F Distribution: table

$c = \frac{\alpha}{2}$

$c = \frac{0.02}{2}$

$c = 0.01$

At 0.01 level (check row 20 and column 24), the critical value is:

<em></em> $f_{0.01,24,20} = 2.86$ <em> --- the upper bound</em>

At 0.01 level (check row 24 and column 20), the critical value is:

$f_{0.01,20,24} = 2.74$

Calculate the inverse F distribution.

$f_{0.99,20,24} = \frac{1}{f_{0.01,20,24}} = \frac{1}{2.74} =0.365$ ---- the lower bound

The rejection region is then represented as:

$0.365 < Test\ Statistic < 2.86$

If the test statistic falls within this region, then the null hypothesis is rejected

$F = 0.923$ --- Test Statistic

$0.365 < 0.923 < 2.86$

<em>The above inequality is true; so, the null hypothesis is rejected.</em>

<em>This implies that, there is no sufficient evidence.</em>

7 0

3 years ago

10 is 25% of what number

telo118 [61]

25% is equal to 1/4 or .25 of a whole.

If you do 10 divided by .25 you get 40.

10 is 25% of 40.

7 0

3 years ago

Compute the odds in favor of obtaining a number divisible by 5 in a single roll of a die.

Georgia [21]

Answer:

1/6 or 16.7% chance

Step-by-step explanation:

A die has 6 sides, and there is only one side with a number divisible by 5, which is the number 5.

So, the probability of rolling a number divisible by 5 is 1/6.

= 1/6 or 0.167

3 0

3 years ago

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12345 [234]

Answer:

3

Step-by-step explanation:

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3 years ago

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