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4 years ago

What is the answer to 1'5"+6'3"=

Mathematics

2 answers:

murzikaleks [220]4 years ago

4 0

Answer:

Sktep-by-step explanation:

Airida [17]4 years ago

4 0

Answer:

7'8"

Step-by-step explanation:

6'+1'=7'

5"+3"=8"

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What is nine sixths simplified

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9/6 simplified= 3/2

..................................

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3 years ago

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The Pythagorean Theorem ONLY works on which triangle?

ioda

Answer:

right angle ( right )

Step-by-step explanation:

Pythagoras' theorem only works for right-angled triangles, so you can use it to test whether a triangle has a right angle or not. In the triangle above, if a 2 < b 2 + c 2 the angle is acute.

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Can someone give me the answer of the question b?

iragen [17]

Answer: 5.04

Step-by-step explanation:

$\sqrt97.5$ = 9.87

9.87 divided by 1.96 = 5.04

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3 years ago

A machine produces a part for the automotive industry. 4% of the parts produced were defective in the past, and we believe that

Mamont248 [21]

Answer:

$n=\frac{0.04(1-0.04)}{(\frac{0.03}{1.64})^2}=114.76$

And rounded up we have that n=115

Step-by-step explanation:

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by:

$z_{\alpha/2}=-1.64, z_{1-\alpha/2}=1.64$

Solution to the problem

The margin of error for the proportion interval is given by this formula:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

The proportion of defectives is estimated as: $\hat p=0.04$ . And on this case we have that the margin of error is $ME =\pm 0.03$ and we are interested in order to find the value of n, if we solve n from equation (a) we got: