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avanturin [10]
3 years ago
5

To draw the net of a cylinder, you would use one rectangle and one circle.

Mathematics
1 answer:
Setler [38]3 years ago
3 0
No, you would use two circles, one for each base, and one rectangle for the sides.
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Game consoles: A poll surveyed 341 video gamers, and 89 of them said that they prefer playing games on a console, rather than a
Orlov [11]

Answer:

Step-by-step explanation:

Hello!

The objective is to test if the population proportion of gamers that prefer consoles is less than 28% as the manufacturer claims.

Of 341 surveyed players, 89 said that they prefer using a console.

The sample resulting sample proportion is p'= 89/341= 0.26

If the company claims is true then p<0.28, this will be the alternative hypothesis of the test.

H₀: p ≥ 0.28

H₁: p < 0.28

α: 0.05

To study the population proportion you have to use the approximation of the standard normal Z= \frac{p'-p}{\sqrt{\frac{p(1-p)}{n} } }≈N(0;1)

Z_{H_0}= \frac{0.26-0.28}{\sqrt{\frac{0.28*0.72}{341} } }= -0.82

This test is one-tailed left, i.e. that you'll reject the null hypothesis to small values of Z, and so is the p-value, you can obtain it looking under the standard normal distribution for the probability of obtaining at most -0.82:

P(Z≤-0.82)= 0.206

Using the p-value approach:

If p-value ≤ α, reject the null hypothesis

If p-value > α, don't reject the null hypothesis

The decision is to not reject the null hypothesis.

Then at a level of 5%, you can conclude that the population proportion of gamers that prefer playing on consoles is at least 28%.

I hope this helps!

4 0
3 years ago
Which values are solutions for the intequality 5&lt; y-8
Vanyuwa [196]

Answer:

y > 13

Step-by-step explanation:

Inequality graph:

6 0
2 years ago
Read 2 more answers
Pls I need help not the best at this.
Mazyrski [523]

Answer:

B

Step-by-step explanation:

because I did the math and had my mom check it :)

7 0
3 years ago
PLEASE HELPPP <br> Which triangles are similar? Which sides are proportional?
Archy [21]

Answer:

<h3>Triangle CBB1 and Triangle CAA1 are similar and line B to B1 and line A to A1 are proportional.</h3>

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
An isosceles triangle with angles b and c having the same measure is shown. Find the measure of each angle whose degree measure
Anton [14]

Answer:

A = 114°, B = C = 33°

Step-by-step explanation:

The triangle relationships let you write two equations:

A+B+C = 180

B=C

Substituting the expressions for A, B, and C, you have ...

(x+7y+41) +(2y+13) +(6x+15) = 180

7x +9y +69 = 180

7x +9y = 111

And the second equation gives ...

(2y+13) = (6x+15)

6x -2y =-2

3x -y = -1

Now, we can add 9 times this second equation to the first to eliminate the y-variable.

(7x +9y) +9(3x -y) = (111) +9(-1)

34x = 102

x = 3

Then the angle measures are ..

B = C = 6·3+15 = 33

A = 180 -2·33 = 114

The angles in the triangle are (A, B, C) = (114°, 33°, 33°).

8 0
3 years ago
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