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andreyandreev [35.5K]
3 years ago
11

I need help thank you

Mathematics
2 answers:
kogti [31]3 years ago
4 0

1 9 , 2 114 I Hope it help this is correct

Luden [163]3 years ago
4 0

Answer:

351

Step-by-step explanation:

\frac{1}{3} p - 3 = 114 ( multiply through by 3 to clear the fraction )

p - 9 = 342 ( add 9 to both sides )

p = 351

There are 351 pages in the novel

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32 - 5x is greater than or equal to 7 - 5(x - 5)
Damm [24]

Answer:

True 32≥32

Step-by-step explanation:

32-5x≥7-5(x-5)

32-5x≥7-5x+25

32-5x≥32-5x

+5x +5x

32≥32

6 0
3 years ago
10ft/2in simplified so the units are the same
Roman55 [17]
Answer:

60 inches or 5 feet

step-by-step explanation:
10 ft can be turned into 120 in
120/2
60 inches or 5 feet
4 0
2 years ago
Read 2 more answers
If t follows a t7 distribution, find t0 such that (a) p(|t | < t0) = .9 and (b) p(t > t0) = .05.
Thepotemich [5.8K]

Answer:

a) P(-t_o < t_7

Using the symmetrical property we can write this like this:

1-2P(t_7

We can solve for the probability like this:

2P(t_7

P(t_7

And we can find the value using the following excel code: "=T.INV(0.05,7)"

So on this case the answer would be t_o =\pm 1.895

b) For this case we can use the complement rule and we got:

1-P(t_7

We can solve for the probability and we got:

P(t_7

And we can use the following excel code to find the value"=T.INV(0.95;7)"

And the answer would be t_o = 1.895

Step-by-step explanation:

Previous concepts

The t distribution (Student’s t-distribution) is a "probability distribution that is used to estimate population parameters when the sample size is small (n<30) or when the population variance is unknown".

The shape of the t distribution is determined by its degrees of freedom and when the degrees of freedom increase the t distirbution becomes a normal distribution approximately.  

The degrees of freedom represent "the number of independent observations in a set of data. For example if we estimate a mean score from a single sample, the number of independent observations would be equal to the sample size minus one."

Solution to the problem

For this case we know that t \sim t(df=7)

And we want to find:

Part a

P(|t|

We can rewrite the expression using properties for the absolute value like this:

P(-t_o < t_7

Using the symmetrical property we can write this like this:

1-2P(t_7

We can solve for the probability like this:

2P(t_7

P(t_7

And we can find the value using the following excel code: "=T.INV(0.05,7)"

So on this case the answer would be t_o =\pm 1.895

Part b

P(t>t_o) =0.05

For this case we can use the complement rule and we got:

1-P(t_7

We can solve for the probability and we got:

P(t_7

And we can use the following excel code to find the value"=T.INV(0.95;7)"

And the answer would be t_o = 1.895

5 0
3 years ago
Jesse and Amir were assigned the same book to read for class. Jesse started reading on Saturday, and he is reading 30 pages a da
barxatty [35]

Answer:

whats the question?

Step-by-step explanation:

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3 years ago
In the drawing what is the measure of angle y
KiRa [710]

Answer:

100

Step-by-step explanation:

P.s. solved it roughly

5 0
3 years ago
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