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kvasek [131]
3 years ago
5

12. For which of the following solids are all cross sections circular?

Mathematics
1 answer:
Sliva [168]3 years ago
3 0

Answer:

2

Step-by-step explanation:

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Please!!! help me which one is ???
marishachu [46]

Answer:

The answer is 150 degrees because you add 100 to the 50.

Step-by-step explanation:

3 0
3 years ago
One day the temperature rose 5 degrees in the mourning then it dropped 9 degrees in the afternoon. The temperature at dawn was 3
SIZIF [17.4K]
-15 is the degree is the answer
6 0
3 years ago
A chemist examines 15 geological samples for potassium chloride concentration. The mean potassium chloride concentration for the
Lelu [443]

Answer:

95% Confidence interval: (0.375,0.377)

Step-by-step explanation:

We are given the following in the question:

Sample mean, \bar{x} = 0.376 cc/cubic meter

Sample size, n = 15

Alpha, α = 0.05

Sample standard deviation, s = 0.0012

Degree of freedom =

=n-1\\=15-1\\=14

95% Confidence interval:  

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 14 and}~\alpha_{0.05} = \pm 2.145  

0.376 \pm 2.145(\dfrac{0.0012}{\sqrt{15}} )\\\\ = 0.376 \pm 0.0006\\\\ = (0.3754,0.3766)\approx (0.375,0.377)  

(0.375,0.377) is the required 95% confidence interval for the population mean potassium chloride concentration.

5 0
3 years ago
I have a radius of 35ft, what is the diameter ?
lianna [129]

Answer:

r=35ft, d=70ft. when r=15 mm, d=30mm

Step-by-step explanation:

Radius is half of diameter

3 0
3 years ago
Grant needs 2/3 cup of raisins and 3/4 cup of almonds to make trail mix, which statement can be used to find out if their are mo
deff fn [24]
To solve this problem, you must find a common denominator. First, you multiply the denominators together, then, multiply the numerator of the first fraction by the original denominator of the second fraction and vis-versa. 

<span>3*4 = denominator of both
</span><span>2*4 = numerator of first fraction
</span><span>3*3 = numerator of second fraction
</span>
Your fractions should end up being 8/12 cups of raisins and 9/12 cup of almonds. You can now compare these fractions. 

<span>Overall, there are 1/12 more almonds than raisins.</span>
8 0
3 years ago
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