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likoan [24]
3 years ago
14

A cone is placed inside a cylinder as shown. The radius of the cone is half the radius of the cylinder. The height of the cone i

s equal to the radius of the cylinder. What is the volume of the cone in terms of the radius, r? What is the ratio of the radius of a circle to its circumference?
Mathematics
2 answers:
kondaur [170]3 years ago
4 0
Given:
Volume of the cone = π r² h/3

radius of the cone is half the radius of the cylinder ⇒ r/2
height of the cone is equal to the radius of the cylinder. ⇒ r

V = 3.14 * (r/2)² * r/3
V = 3.14 * r²/4 * r/3
V = 3.14r³ / 12

Ivanshal [37]3 years ago
3 0

Answer:


C.   V = \frac{1}{12} π r^{3}

Step-by-step explanation:

<em>A. </em><em>  V = \frac{1}{3} π r^{2} h</em>


B.  V = \frac{1}{6} π r^{2}


C.   V = \frac{1}{12} π r^{3}


D.   V = 2 π r^{3}

<em>π Is Meant To be </em><em>π</em>

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the combined area of two squares is 45 square cm. each side one square is twice as long as a side of the other Square. what is t
anygoal [31]
6 centimeters



x will represent the side length of the smaller square, so 2x is the side length of the bigger square.

x*x + 2x*2x = 45

x^2 + 4x^2 = 45

5x^2 = 45

x^2 = 9 (Divide by 5)

sqrt(x^2) = sqrt(9)

x = 3

2x = 6 (Multiply by 2)



Please consider marking this answer as Brainliest to help me advance.
4 0
3 years ago
Someone pls help me answer this????? THE POINTS ARE (3,-4) And (3,5)
irina [24]
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The standard eq'n of a circle is (x-h)^2 + (y-k)^2 = r^2

Let's subst. what we know:  we get   (x-3)^2 + (y-1/2)^2 = (9/2)^2.  Note that y = 1/2 is halfway between y=-4 and y=5.</span>
3 0
3 years ago
A recent study found that 81?% of? breast-cancer cases are detectable by mammogram. Suppose a random sample of 11 women with bre
elena-s [515]

Answer:

9.847 %

Step-by-step explanation:

Be p1 the probability that the mammogram detect breast cancer in a woman.

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The probability 'P' that independent and consecutive 'n' singular events with p probability occur is:

P=p_{1} ^{n}

In this case:

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7 0
3 years ago
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omeli [17]
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3 years ago
Miya flips a coin and rolls a 6-sided number cube labled 1-6 and records tge outcome. About how many times is she likely to flip
neonofarm [45]

Answer:

4 times

Step-by-step explanation:

Sample space :

6 sided cube = (1, 2, 3, 4, 5, 6)

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Probability of head (H) = P(H) = 1 /2 = 0.5

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Hence, expected number of times this is likely to occur in 48 tries :

0.083333 * 48 = 4

4 0
3 years ago
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