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fredd [130]
3 years ago
10

Find the volume of the cone.Leave your answer in terms of pi. R=4cm H=9cm

Mathematics
1 answer:
Aneli [31]3 years ago
3 0

Answer:

V = 48π

Step-by-step explanation:

V=\pi r^{2} \frac{h}{3}       Use the equation to find the volume of a cone

V = \pi (4)^{2} \frac{9}{3}      Simplify the exponent

V = π(16) \frac{9}{3}       Multiply

V = 48π

If this answer is correct, please make me Brainliest!

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Step-by-step explanation:

4 0
3 years ago
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What is the domain of f(x) = 3x - 2?
stira [4]

Answer:

idk if this is the right answer 1x

Step-by-step explanation:

8 0
3 years ago
Alex the electrician needs 34 yards of electrical wire to complete his job. He has a coil of wiring in his workshop. The coiled
bogdanovich [222]

Answer: This coil will not be enough to complete the job.

Step-by-step explanation:

The circumference of the coil of wiring can be calculated with:

C=2\pi r

Where r is the radius and \pi=3.14

The radius can be calculated by dividing the diameter by 2. Then:

r=\frac{18in}{2}\\\\r=9in

Convert 9 inches to yards (1 yard=36 inches):

(9in)(\frac{1yd}{36in})=0.25yd

Substitute this radius into the formula:

C=2(3.14)(0.25yd)\\C=1.57yd

Since there are 21 circles of wire, you need to multiply C=1.57yd by 21:

C_T=(1.57yd)(21)=32.97yd

The coil has 32.97 yards of wire and Alex needs 34 yards, therefore, this coil will not be enough  to complete the job.

8 0
3 years ago
1 card holds 10 stickers, 59 stickers. How many cards are needed
pochemuha
The answer is

6 cards
6 0
3 years ago
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Mrac [35]

Answer:

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Step-by-step explanation:

we have to add to know what part of the dish ate and then subtract it from the total

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1 + 4 + 2 = 7

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1 - 7/12 =

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12 - 7 = 5

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