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3 years ago

Plz help I’ll give brainlest or what ever it’s called lol

Mathematics

1 answer:

SOVA2 [1]3 years ago

6 0

Answer:

it c

Step-by-step explanation:

i am smart

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Select the two descriptions that match the dilation

postnew [5]

C and D

Hope this helps !

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3 years ago

True or False: If we have an integer primal solution with cost C and a fractional dual solution with cost at least C/2, the size

maria [59]

Answer:

True

Step-by-step explanation:

The size of the vertex cover is atleast twice the size of the maximum edge. Vertex must contain atleast one vertex from the matched edge. Vertex are never the strong dual solutions of each other.

3 0

3 years ago

A tortoise is walking in the desert. It walks for 2 minutes at a speed of 5.12 meters per minute. For how many meters does it wa

Allushta [10]

Answer:

5.12×2=10.24 meters per hour

Distance =time ×speed

3 0

3 years ago

Read 2 more answers

Your savings account has a balance of $125. You add $22 a month to this balance.

Leviafan [203]

Answer:

which principle prevents a brach from abusing its powerwhich principle prevents a brach from abusing its power

Step-by-step explanation:

4 0

3 years ago

The average daily volume of a computer stock in 2011 was ų=35.1 million shares, according to a reliable source. A stock analyst

Shtirlitz [24]

Answer:

The null hypothesis is $H_o : \mu = 35 .1 \ million \ shares$

The alternative hypothesis $H_a : \mu \ne 35.1\ million \ shares$

The 95% confidence interval is $27.475 < \mu < 37.925$

Step-by-step explanation:

From the question the we are told that

The population mean is $\mu = 35.1 \ million \ shares$

The sample size is n = 30

The sample mean is $\= x = 32.7 \ million\ shares$

The standard deviation is $\sigma = 14.6 \ million\ shares$

Given that the confidence level is $95\%$ then the level of significance is mathematically represented as

$\alpha = 100-95$

$\alpha = 5\%$

=> $\alpha = 0.05$

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

The value is $Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

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

substituting values

$E = 1.96 * \frac{ 14.6 }{\sqrt{30} }$

$E = 5.225$

The 95% confidence interval confidence interval is mathematically represented as

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

substituting values

$32.7 - 5.225 < \mu < 32.7 + 5.225$

$27.475 < \mu < 37.925$

6 0

3 years ago