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Inessa05 [86]
3 years ago
6

What is the solution of x = 5 x = 13 x = 20 x = 328

Mathematics
2 answers:
salantis [7]3 years ago
8 0

Answer:

328

Step-by-step explanation:

First, square both sides to give you 4x-16+1296

Second, add 16 to both sides for 4x= 1312

3rd, divide both sides by 4 to get x=328

Vlada [557]3 years ago
4 0

Answer:22

Step-by-step explanation:

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Masteriza [31]
The unit rate would be 11/2. Hope this helped.
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3 years ago
An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic. Step 2 of 2 : S
ziro4ka [17]

Answer:

The 85% onfidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars is (0.151, 0.205).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

Sample of 421 new car buyers, 75 preferred foreign cars. So n = 421, \pi = \frac{75}{421} = 0.178

85% confidence level

So \alpha = 0.15, z is the value of Z that has a pvalue of 1 - \frac{0.15}{2} = 0.925, so Z = 1.44.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.178 - 1.44\sqrt{\frac{0.178*0.822}{421}} = 0.151

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.178 + 1.44\sqrt{\frac{0.178*0.822}{421}} = 0.205

The 85% onfidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars is (0.151, 0.205).

8 0
2 years ago
A bag contains 9 marbles: 4 are green, 3 are red, and 2 are blue. Deshaun chooses a marble at random, and without putting it bac
nexus9112 [7]

Step-by-step explanation:

Total marbles = 9 + 4 + 3 + 2 = 18

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3 years ago
64 ounces in 8 cups unit rate
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So the unit rate is basically how many ounces in 1 cup?

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64 = 8

64 / 8 = 8 / 8

8 = 1

So there are 8 ounces in 1 cup, which is your unit rate.
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3 years ago
Based on the equation 6x + 2y = 30, what is the missing value in the table?
umka2103 [35]

Answer:

5

Step-by-step explanation:

6 0
3 years ago
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