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Bad White [126]
3 years ago
5

What is the graph represents the equation y=1/3x+2

Mathematics
1 answer:
Kaylis [27]3 years ago
3 0

Step-by-step explanation:

step 1. you mean which graph represents the equation y = (1/3)x + 2?

step 2. please provide the graphs - they are missing.

step 3. the equation has a slope of 1/3 which means it goes up one and three to the right.

step 4. the y intercept is 2 so it goes through the point (0, 2).

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The level of a lake was 8 inches below normal. It decreased 1
solmaris [256]

Answer:

-9\dfrac{5}{8} inches.

Step-by-step explanation:

The level of a lake was 8 inches below normal.

Now, it is given that the water level decreases 1\dfrac{1}{4} = 1.25 inches in June and 2\dfrac{3}{8} =2.375 inches more in July.

Therefore, the new level of water with respect to the normal level will be  

= - 8 - 1.25 - 2.375  

= - 9.625 inches

= -9\dfrac{5}{8} inches. (Answer)

4 0
3 years ago
In circle U below, VT = 90 inches.
Gennadij [26K]

Answer:

26

Step-by-step explanation:

The formula should be

s=\frac{104}{360}2\pir

If 90 inches is the full diameter, cutting it by half will give you the radius, then you just plug in everything else.

\frac{104}{360}*2*\pi*45= 26\pi inches

This answer is better to leave it as pie, so multiply everything else besides the pie.

7 0
3 years ago
Read 2 more answers
A simple random sample of 90 is drawn from a normally distributed population, and the mean is found to be 138, with a standard d
bagirrra123 [75]

The 90% confidence interval for the population mean of the considered population from the given sample data is given by: Option C:  [130.10, 143.90]

<h3>
How to find the confidence interval for population mean from large samples (sample size > 30)?</h3>

Suppose that we have:

  • Sample size n > 30
  • Sample mean = \overline{x}
  • Sample standard deviation = s
  • Population standard deviation = \sigma
  • Level of significance = \alpha

Then the confidence interval is obtained as

  • Case 1: Population standard deviation is known

\overline{x} \pm Z_{\alpha /2}\dfrac{\sigma}{\sqrt{n}}

  • Case 2: Population standard deviation is unknown.

\overline{x} \pm Z_{\alpha /2}\dfrac{s}{\sqrt{n}}

For this case, we're given that:

  • Sample size n = 90 > 30
  • Sample mean = \overline{x} = 138
  • Sample standard deviation = s = 34
  • Level of significance = \alpha = 100% - confidence = 100% - 90% = 10% = 0.1 (converted percent to decimal).

At this level of significance, the critical value of Z is: Z_{0.1/2} = ±1.645

Thus, we get:

CI = \overline{x} \pm Z_{\alpha /2}\dfrac{s}{\sqrt{n}}\\CI = 138 \pm 1.645\times \dfrac{34}{\sqrt{90}}\\\\CI \approx 138 \pm 5.896\\CI \approx [138 - 5.896, 138 + 5.896]\\CI \approx [132.104, 143.896] \approx [130.10, 143.90]

Thus, the 90% confidence interval for the population mean of the considered population from the given sample data is given by: Option C:  [130.10, 143.90]

Learn more about confidence interval for population mean from large samples here:

brainly.com/question/13770164

3 0
2 years ago
Please Answer This, the question is on the picture. it needs to be a fraction
lesya692 [45]

Answer:

x = 19.5   or 19 1/2

Step-by-step explanation:

cos 41 = 14.7/x

x = 19.5

8 0
3 years ago
Match the numbers to their equivalent alternate form.
ValentinkaMS [17]

Answer:

6558879790645768543

Step-by-step explanation:

5 0
3 years ago
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