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ycow [4]
2 years ago
11

If the Diameter is ten then what is the area of it

Mathematics
1 answer:
Pepsi [2]2 years ago
7 0

Answer:

78.54

Step-by-step explanation:

Hope this helps!

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...........................
enyata [817]

Answer:

The value of r to be out in the given formula is r = 0.048.

Step-by-step explanation:

The rate is given as  4.8%.

Now to put the value of interest in the given formula,

We need the value of r.

r = \frac{r \%}{100}   = \frac{4.8}{100} = 0.048

Hence, the value of r to be out in the given formula is r = 0.048.

3 0
3 years ago
If you have four quarters and three nickles how much money do you have
vovangra [49]

Answer:

$1.15

Step-by-step explanation:

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2 years ago
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Bowie used 1/6 cup of rasperries and 1/5 cup of blueberries to make a berry smoothie. How much fruit did he use in total?
guapka [62]

Answer: 11/30

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A quadrilateral with opposite sides both parallel and congruent.​
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The answer is a parallelogram
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2 years ago
People tend to evaluate the quality of their lives relative to others around them (Frieswijk et al., 2004). In one study, resear
Alborosie

Answer:

Step-by-step explanation:

Hello!

Research.

n=9 frail elderly were interview and compared to a fictitious person who was worse off then the interviewee, a life-satisfaction score was determined for each person.

18, 23, 24, 22, 19, 27, 23, 26, 25

Assuming that the population average score is μ= 20, the researchers think that the elderly in the sample are more or less satisfied than others in the general population.

a. You have the information of one sample, assuming this sample has a normal distribution and each elderly interviewed is independent, then the t-test of choice is a one-sample t-test.

b. and c. If you say that the elderly are "more or less" satisfied than the others, this means that they are either as satisfied as to the general population or not satisfied as to the general population. Symbolically:

H₀: μ = 20

H₁: μ ≠ 20

This is a two-tailed test, meaning, you will have two critical regions.

d.  

α: 0.05

Left critical value: t_{n-1;/\alpha 2} = t_{8; 0.025}= -2.306

Right critical value: t_{n-1;1-\alpha /2} = t_{8;0.975} = 2.306

e.

t_{H_0}= \frac{X[bar]-Mu}{\frac{S}{\sqrt{n} } } ~t_{n-1}

X[bar]= 23

S= 3

t_{H_0}= \frac{23-20}{\frac{3}{\sqrt{9} } }= 3

f.

Considering that the calculated t-value is greater than the right critical value, the decision is to reject the null hypothesis, so using a significance level of 5% you can conclude that the average life-satisfaction score of the elderly is different than 20.

I hope it helps!

7 0
3 years ago
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