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3 years ago

I need help plsssss help me

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

7 0

Answer:

I am not good at math either sorry

Step-by-step explanation:

;-;

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These are the first four terms of a sequence. 3 -1 -5 -9. Find the nth term.

podryga [215]

Answer:

4n-1

Step-by-step explanation:

Diffrence bweetween each number, 3 and -1, -1 and -5, -5 and -9 is 4

find the closest numbers

4*1=4

4*0=0

4*-1=-4

4*-2=-8

now we figure out how to make these numbers into our terms of this sequence

4n-1

4*1-1=3

4*0-1=-1

4*-1-1=-3

4*-2-1=-9

so the nth term is 4n-1

4 0

2 years ago

Let Z be the standard normal random variable. Use a probability calculator to answer the following questions: What is the probab

Softa [21]

Answer:

0.6826 = 68.26% probability Z will be within one standard deviation of average.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

What is the probability Z will be within one standard deviation of average?

This is the p-value of Z = 1 subtracted by the p-value of Z = -1.

Z = 1 has a p-value of 0.8413.

Z = -1 has a p-value of 0.1587.

0.8413 - 0.1587 = 0.6826

0.6826 = 68.26% probability Z will be within one standard deviation of average.

8 0

3 years ago

Which of these equations has no solution?

Free_Kalibri [48]

I'm pretty sure your answer would be A

4 0

4 years ago

Read 2 more answers

‼️‼️help please ASAP ❤️❤️

madreJ [45]

It's A: 61 degrees, the point are the exact same but just on the opposite points.

8 0

4 years ago

Help me...................

ELEN [110]

The answer is F because the slope is 2 so the line must go like this /, not like this \. Because if the line is going like this \, that means that it is negative, and if the line is going like this / that means that it is positive. and the y-intercept is 1 so. F is the answer. :)

8 0

4 years ago