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-Dominant- [34]
3 years ago
9

PLZ HELP!!!!! will mark!!!

Mathematics
2 answers:
lianna [129]3 years ago
7 0
I think it is C. I'm not 100% sure though
Alina [70]3 years ago
4 0
Im pretty sure the second one is 
12a3-15a2+16a

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Find the following, giving your answers to 1 decimal place?
sweet [91]

Answer:

I. Volume = 301.6 cm³ (to 1d.p)

II. CSA = 188.5 cm² (to 1d.p)

Step-by-step explanation:

<u>Given the following data;</u>

Height, h = 8cm

Radius, r = 6cm

Curved length = 10cm

a. To find the volume of the cone

V = \frac{1}{3} \pi r^{2}h

Where;

  • V is the volume of the cone.
  • r is the radius of the base of the cone.
  • h is the height of the cone.

Substituting into the equation, we have;

Volume = \frac{1}{3} * 3.142*6^{2}*8

Volume = \frac{1}{3} * 3.142*36*8

Volume = 3.142*12*8

<em>Volume = 301.6 cm³</em><em> </em>(to 1d.p)

b. The curved surface area of the cone

CSA = \pi rl

Where;

  • CSA is the curved surface area of the cone.
  • r is the radius of the base of the cone.
  • l is the curved length of the cone.

Substituting into the equation, we have;

CSA = 3.142*6*10

<em>CSA = 188.5 cm²</em> (to 1d.p)

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3 years ago
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Which statement regarding the diagram is true?
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HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!<br> 3⁄5 of 2⁄3 =
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Answer:

0.400000002

Step-by-step explanation:

3/5 = .6

2/3 = .666667

Tell me if I am wrong.

Can I get brainliest

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