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34kurt
3 years ago
15

HELPS!!!!!!!!!!!!!!!!!!!!!!!!!!!! ANYBODY

Mathematics
2 answers:
VLD [36.1K]3 years ago
6 0
Second one , when graphing a linear inequality on a number line, use an open circle for "less than" or "greater than". And a closed circle for "less than or equal to" or "greater than or equal to". Since the arrow is pointing n < -1 it means less than. If it was pointing n > -1 it would be greater than
zvonat [6]3 years ago
5 0
It’s the second one. The symbol means “less than or equal to,” so it would be a closed circle with the arrow pointing to everything less than -1
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You can spend up to $35 on a shopping trip.
Oksi-84 [34.3K]

A.    35-14=21   hopes this helps

7 0
3 years ago
Find the volume of the rectangular prism. geometry hw plz help
liq [111]

Answer:

189 cm^3

Step-by-step explanation:

7 times 9 times 3=189

4 0
3 years ago
1,868 to the nearest hundred
Citrus2011 [14]

Answer: 1,900

Step-by-step explanation:

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7 0
2 years ago
If t follows a t7 distribution, find t0 such that (a) p(|t | &lt; t0) = .9 and (b) p(t &gt; 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
A warehouse received a shipment of 368 bicycles. Each bicycle is in a large box. The boxes are stored in 8 rows. How many boxes
diamong [38]
The are 46 boxes in each row
6 0
3 years ago
Read 2 more answers
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