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arsen [322]
2 years ago
5

Compute the following without using a calculator. You must show your work to receive full credit.

Mathematics
1 answer:
Tomtit [17]2 years ago
3 0

Answer: 50,001²-49,999²=0,2.

Step-by-step explanation:

50,001^2-49,999^2=(50,001+49,999)*(50,001-49,999)=100*0,002=0,2.

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Which story problem could be solved using the division problem 30 ÷ 5 = 6?
Lynna [10]

Answer:

"There are 30 chairs in 5 rows. How many chairs are in each row?" Would be the correct story problem.

8 0
3 years ago
If a set xy-axes has 20 grid units in each direction and the greatest value of the data to be placed on the horizontal axis is 1
Alborosie
Use 7 scale point.
132/20 = 6.6
to its better to use more than 6.6 scale. to make it easier use 7, so to avoid decimals

 
4 0
3 years ago
Do one of the​ following, as appropriate.​ (a) Find the critical value z Subscript alpha divided by 2​, ​(b) find the critical v
aliya0001 [1]

Answer:

t=\pm 2.95

Step-by-step explanation:

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The t distribution or 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.  

Data given

Confidence =0.99 or 99%

\alpha=1-0.99=0.01 represent the significance level

n =16 represent the sample size

We don't know the population deviation \sigma

Solution for the problem

For this case since we don't know the population deviation and our sample size is <30 we can't use the normal distribution. We neeed to use on this case the t distribution, first we need to calculate the degrees of freedom given by:

df=n-1=16-1=15

We know that \alpha=0.01 so then \alpha/2=0.005 and we can find on the t distribution with 15 degrees of freedom a value that accumulates 0.005 of the area on the left tail. We can use the following excel code to find it:

"=T.INV(0.005;15)" and we got t_{\alpha/2}=-2.95 on this case since the distribution is symmetric we know that the other critical value is t_{\alpha/2}=2.95

8 0
3 years ago
Determine whether the given value of the variable is a solution of the equation. 1/3c = 3/8; c = 3/4
Sonja [21]
It doesn't. One third multiplied by three fourths is one fourth or .25
6 0
3 years ago
Read 2 more answers
Which of the following fractions is not in simplest form?<br> 4/15<br> 7/10<br> 9/12<br> 3/4
Dominik [7]

Answer:

9/12

Step-by-step explanation:

Both 9 and 12 can be divided by 3, so it is not in simplest form.

8 0
3 years ago
Read 2 more answers
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