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pav-90 [236]
3 years ago
14

What is the slope of a line (-2,3) and (2,-3)

Mathematics
1 answer:
Paul [167]3 years ago
8 0

Answer:

Negative slope

Step-by-step explanation:

This is a negative slope because when you plot the numbers on the graph it makes a negative slope.

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(1) The ratios 18:3 and 6:1 are equivalent. Why?
aliya0001 [1]

Answer:

Because if you take 18:3 and divide both sides by 3, you will get 6:1

Step-by-step explanation:

Because 18:3 divided by 3 on both sides equals 6:1, also 6:1 times 3 on both sides equals 18:3.

6 0
3 years ago
The original price is $60. The store marks the item up 20%. What is the markur amount? What is the new price ?
Lelechka [254]

Answer:

80%

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
A simple random sample of size has mean and standard deviation.Construct a confidence interval for the population mean.The param
scZoUnD [109]

ANSWER:

EXPLANATION:

A simple random sample of size has mean and standard deviation. Construct a confidence interval for the population mean. The parameter is the population The correct method to find the confidence interval is the method.

The sample size is not given. Mean and Standard Deviation are not given.

To construct a confidence interval for the population mean, first find out the margin of error of the sample mean. This is why you need a confidence interval. If you are 90% confident that the population mean lies somewhere around the sample mean then you construct a 90% confidence interval.

This is equivalent to an alpha level of 0.10

If you are 95% sure that the population mean lies somewhere around the sample mean, your alpha level will be 0.05

In summary, get the values for sample size (n), sample mean, and sample standard deviation.

Make use of a degrees of freedom of (n-1).

7 0
3 years ago
Light in vacuum is incident on the surface of a slab of transparent material. In the vacuum the beam makes an angle of 43.8° wit
REY [17]

Answer:

Index of refraction of transparent is 1.48

Step-by-step explanation:

Snell's law states that;

n1(sinθ1) = n2(sinθ2)

Where;

n1 and n2 represent the indices of refraction for the two media, and θ1 and θ2 are the angles of incidence and refraction that the ray R makes with the normal.

In this question;

n1 = 1;

θ1 = 43.8°

θ2 = 19.3°

n2 is unknown.

Thus using Snell's law, we have;

1 x sin 43.8 = n2 x sin 19.3

n2 = (sin 43.8)/sin 19.3

n2 = 1.48

4 0
3 years ago
Can seven go into three
Thepotemich [5.8K]
Not exactly as the answer is 0.428571428571428571 and continues infinitely repeating the 6 digits "428571" in sequence
4 0
3 years ago
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