Answer:
32pi ftsquared or
100.48ft squared (multiplied by 3.14)
Step-by-step explanation:
a = piR^2
Answer:
a, b
Explanation:
For a, pi is irrational.
For b, sqrt(24) is not a perfect square and therefore irrational.
For c and d, there are no irrational numbers.
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Answer:
1. 51°
2. 40°
3. 65°
4. 60°
Step-by-step explanation:
The sum of the angles in a triangle is 180°. We can use the angles given to find the missing angle.
1. 51°
42+87+x=180
129+x=180
x=51
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2. 40°
110+30+x=180
140+x=180
x=40
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3. 65°
20+95+x=180
115+x=180
x=65
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4. 60°
60+60+x=180
120+x=180
x=60
Given that the mean is $9.5 and the standard deviation is $1.30, the standard error will be given by:
σ/√n
where
σ-standard deviation
n=sample size
thus, we shal have:
1.30/√20
=0.2906
Next we find the margin error
0.2906*2=0.581
thus the confidence interval will be:
(9.5+0.581, 9.5-0.581)
=(10.081,8.919)
Answer:
In the problem, the sum of the two functions is 2x + 2
Step-by-step explanation:
For this problem, we have to add together f(x) and g(x).
<em>f(x) = 9 - 3x</em>
<em>g(x) = 5x - 7</em>
(f + g)(x) = (9 - 3x) + (5x - 7)
Combine like terms.
(f + g)(x) = 2x + 2
So, when you combine the two functions together, you will get 2x + 2.
