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2 years ago

Work out the surface of the solid cuboid. 8m 6m 2m The diagram is not drawn to scale

Mathematics

1 answer:

Ostrovityanka [42]2 years ago

6 0

Answer:

8 * 6 * 2 = 96

Step-by-step explanation:

It's a multiplication problem. 8 * 6 = 48 * 2 = 96

The rectangular prism is 96m.

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A professor thinks that the students in her statistics class this term are less creative than most students at this university.

choli [55]

Answer:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

Step-by-step explanation:

$\mu=35\\n=23\\\=x=33\\s=5\\\alpha=0.1$

1. Null and alternative hypothesis

$H_{0}:\mu=35\\H_{1}:\mu$

2. Significance level

$\alpha=0.1\\1-\alpha=0.99$

Freedom degrees is given by:

$v=n-1\\v=23-1=22$

For a sgnificance level of 0,01 and 22 freedom degrees, t-student distribution value is:

$t_{0.01;23}=-2. 5083$

3. Test statistic

$t=\frac{\=x-\mu}{\frac{s}{\sqrt{n} } }$

$t=\frac{33-35}{\frac{5}{\sqrt{23} } }$

$t=-1,918$

In this case, we have an one left tailed analysis, it means that null hypothesis is rejected if $t$

$-1.918>-2.5083$

Conclusion:

It is not enough evidence to reject null hypothesis. It is not enough evidence to say that mean score is not equal to 35.

3 0

2 years ago

The question and the answers choices are in the picture please and thank you :)

joja [24]

Answer:

Option 3

Step-by-step explanation:

Hope this helps

Have a great day!

8 0

2 years ago

Store A sells 11 bagels for 9.57 Store B sells bagels for 3.52. How do the unit rates compare?

Sloan [31]

First you put the numbers in this form:

11 Bagels = $9.57
________ _______
? Bagels = $3.52

Now they look like fractions but you have to cross multiply them like this: 11 x $3.52 which makes $38.72 then you divide $38.72 by $9.57 which makes the answer that you have to find which is 4.04597701 or just to round 4 and then that will be your answer.

4 0

3 years ago

I am stuck on |x+3|<5. Can someone help?

NeTakaya

the answer would be -8<x<2

5 0

2 years ago

A car starts moving at 9:00 am and moves at a constant speed. At what time will the car be at the distance 200 miles from the st

andriy [413]

. i got the answer of 2:00

Step-by-step explanation:

yea