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Yuri [45]
3 years ago
15

What is the approximate volume of the cone? Use 3.14 for π.

Mathematics
1 answer:
telo118 [61]3 years ago
8 0

Answer:

About 131.95 (you may have to round up)

Step-by-step explanation:

Volume of a cone = pi(r^2)(h/3)

= pi(3^2)(14/3)

= pi(9)(4 & 4/5)

= pi(43.2)

If your teacher wants an exact number, you have to multiply 43.2 y whatever your teacher says to shorten pi to, usually 3.14. The about 131.95 is from 43.2*3.14 I think.

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In circle Y, what is m_1?
cupoosta [38]

Answer:

25

Step-by-step explanation:

6 0
3 years ago
In a random sample of 300 attendees of a minor league baseball game, 182 said that they bought food from the concession stand. C
horrorfan [7]

Answer:

<em>90% confidence interval for the proportion of fans who bought food from the concession stand</em>

(0.5603,0.6529)

Step-by-step explanation:

<em>Step(i)</em>:-

<em>Given sample size 'n' =300</em>

Given data  random sample of 300 attendees of a minor league baseball game, 182 said that they bought food from the concession stand.

<em>Given sample proportion </em>

<em>                        </em>p^{-}  = \frac{x}{n} = \frac{182}{300} =0.606

level of significance = 90% or 0.10

Z₀.₁₀ = 1.645

<em>90% confidence interval for the proportion is determined by</em>

(p^{-} - Z_{0.10}\sqrt{\frac{p(1-p)}{n} }  , p^{-} +Z_{0.10}\sqrt{\frac{p(1-p)}{n} })

(0.6066 - 1.645\sqrt{\frac{0.6066(1-0.6066)}{300} }  ,0.6066+1.645\sqrt{\frac{0.6066(1-0.6066)}{300} })

(0.6066 -  0.0463  ,0.6066 +  0.0463)

(0.5603,0.6529)

<u>final answer</u>:-

<em>90% confidence interval for the proportion of fans who bought food from the concession stand</em>

(0.5603,0.6529)

5 0
3 years ago
3/4 &lt; ?/12 fill in the missing number
Lelechka [254]

Answer:

9

Step-by-step explanation:

12 / 4 = 3

3 x 3 = 9

3 0
3 years ago
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Anon25 [30]

Answer:

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Step-by-step explanation:

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3 years ago
What is the circumference of this circle, in centimeters? Use StartFraction 22 over 7 EndFraction for Pi.
yaroslaw [1]

Answer:

66 cm

Step-by-step explanation:

Diameter (d) = 21 cm

C = \pi  \: d =  \frac{22}{7}  \times 21 = 22 \times 3 = 66 \: cm

3 0
3 years ago
Read 2 more answers
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