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2 years ago

What is the measure of CAD

Mathematics

1 answer:

Novay_Z [31]2 years ago

3 0

Answer:

CAD = 128

Step-by-step explanation:

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Can someone help me out on these geometry fill in the blanks questions? Just questions 2,3,4.. it’s urgent

emmasim [6.3K]

2.) 3&4
3.) 1&3
4.) 2&4

6 0

1 year ago

A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 434 gram setting. It is

yan [13]

Answer:

No, there is not sufficient evidence to support the claim that the bags are underfilled

Step-by-step explanation:

A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 434 gram setting.

This means that the null hypothesis is:

$H_{0}: \mu = 434$

It is believed that the machine is underfilling the bags.

This means that the alternate hypothesis is:

$H_{a}: \mu < 434$

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

434 is tested at the null hypothesis:

This means that $\mu = 434$

A 9 bag sample had a mean of 431 grams with a variance of 144.

This means that $X = 431, n = 9, \sigma = \sqrt{144} = 12$

Value of the test-statistic:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{431 - 434}{\frac{12}{\sqrt{9}}}$

$z = -0.75$

P-value of the test:

The pvalue of the test is the pvalue of z = -0.75, which is 0.2266

0.2266 > 0.01, which means that there is not sufficient evidence to support the claim that the bags are underfilled.

7 0

2 years ago

When a certain drug is taken orally, the concentration of the drug in the patient's bloodstream after t minutes is given by

sineoko [7]

The time when the maximum serum concentration is reached is obtained by equating the derivative of C(t) to 0.
i.e. dC(t)/dt = 0.06 - 2(0.0002t) = 0.06 - 0.0004t = 0
0.0004t = 0.06
t = 0.06/0.0004 = 150
Therefore, the maximum serum concentration is reached at t = 150 mins

The maximum concentration = 0.06(150) - 0.0002(150)^2 = 9 - 0.0002(22,500) = 9 - 4.5 = 4.5
Therefore, the maximum concentration is 4.5mg/L

7 0

3 years ago

William is planning to buy a guitar for $35.95. The sales tax rate is 8.25%. He wants to be sure he has enough money. How much w

hram777 [196]

A.) 38.92 the sales tax is $2.97 so 35.95 + 2.97 = 38.92

3 0

3 years ago

If k = √(49 - 12√5), then find the value of k +2

malfutka [58]

Step-by-step explanation:

k = √(49 - 12√5)

= √(45 + 4 - 2 √180)

= √45 - √4

= 3 √5 - 2.

<em>So, k + 2 = 3 √5 - 2 + 2 = 3 √5.</em>

3 0

1 year ago

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