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Vladimir [108]
3 years ago
6

Given: 4n^2 + 25 = -20x, what is the value of the discriminant?

Mathematics
1 answer:
worty [1.4K]3 years ago
4 0
I hope this helps you

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Please hurry <br> and answer this question
belka [17]

Answer:

B

12000 divides by 2880 is 42! Hope this could help

Step-by-step explanation:

3 0
3 years ago
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In p.
ozzi
The circumference by definition is given by:
 C = 2 * pi * r
 Where,
 r: radius of the circle.
 Substituting values we have:
 C = 2 * 3.14 * 16
 C = 100.48 feet
 Answer:
 
A measurement that is closest to the circumference of the parachute in feet is:
 
C = 100.48 feet
6 0
3 years ago
Charlotte drove 472 miles in 10 hours. On average, how fast did she drive in miles per
Zanzabum

Answer:

47.2 miles per hour

Step-by-step explanation:

472 miles/ 10 hours= 47.2

4 0
3 years ago
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Assume that the following data were generated using a valid and appropriate methodology. XYZ Data Analytics, Inc. Received prope
Hitman42 [59]

Using the z-distribution, as we are working with a proportion, the 95% confidence interval for the proportion of consumers who would buy the product at it's proposed price is (0.3016, 0.3830).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

179 out of 523 members indicated they would buy the new product at the proposed price, hence:

\pi = \frac{179}{523} = 0.3423

Then the bounds of the interval are found as follows:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3423 - 1.96\sqrt{\frac{0.3423(0.6577)}{523}} = 0.3016

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3423 + 1.96\sqrt{\frac{0.3423(0.6577)}{523}} = 0.3830

More can be learned about the z-distribution at brainly.com/question/25890103

4 0
2 years ago
6. Evaluate f(-1).
Anna11 [10]

Answer:

6. -f         7. f= 6/8

Step-by-step explanation:

Hope dis helps!!

4 0
3 years ago
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