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3 years ago

Which formula represents the nth term of arithmetic sequence 2, 5, 8, 11, ... ?

Mathematics

1 answer:

german3 years ago

6 0

2,5,8,11,14,17,20,23,29

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A project is found to have expected time T = 35.33 days and variance V = 3.22.

Goryan [66]

Answer:

a) $z = \frac{40-35.33}{1.794}= 2.60$

b) $z = \frac{40-35.33}{1.794}= 2.60$

c) $z = \frac{30-35.33}{1.794}= -2.97$

Step-by-step explanation:

For this case we know that the mean for the random variable of interest is $\mu = 35.33$ and the variance $\sigma^2 = 3.22$ so then the deviation would be $\sigma = \sqrt{3.22}= 1.794$

The z score is given by thsi formula:

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

Part a

We want this probability:

$P(X>40)$

And if we find the z score we got:

$z = \frac{40-35.33}{1.794}= 2.60$

And we can find this probability: $P(Z>2.60)$

Part b

We want this probability:

$P(X$

And if we find the z score we got:

$z = \frac{40-35.33}{1.794}= 2.60$

And we can find this probability: $P(Z$

Part c

We want this probability:

$P(X$

And if we find the z score we got:

$z = \frac{30-35.33}{1.794}= -2.97$

And we can find this probability: $P(Z$

7 0

3 years ago

What is the best way to design a study to determine how much traffic there is during the morning rush

Dominik [7]

Answer:

Step-by-step explanation:

AAAAA+++++++++

5 0

1 year ago

-6x < 48<br> a. x > -8<br> b. x < 8<br> c. x < -8<br> d. x > 8

garik1379 [7]

The answer is A.
If you need an explanation let me know

8 0

3 years ago

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What is 1m x1000 tgggggggggggggggggggggggggggggggg

Gnesinka [82]

Answer:

1m=1000cm

1000×1000

but because

m=1000/1

1000

3 0

3 years ago

Find the missing coordinate to complete the ordered pair.

nordsb [41]

Answer:

(9, -4)

Step-by-step explanation:

Substitute 9 for x in the expression.

y = -(9) + 5

y = -9 + 5

y = -4

The ordered pair is (9, -4).

3 0

3 years ago

Read 2 more answers