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Mrrafil [7]
4 years ago
15

For smart people out there, answer this question, if u can! part A!

Mathematics
2 answers:
GaryK [48]4 years ago
6 0
Well D. represents -1/4 because there are 4 parts that make up -1, and D. is right before 0, so that makes it -1/4.
With my same explanation as before, you have gotten the second one correct; well done! =D
Well, I hope I helped! =D
Trava [24]4 years ago
5 0
-.75 because there are 4 tick marks. 4 = 1/4 for each since its on the third and before 0, it is -.75
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stealth61 [152]
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4 years ago
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irina [24]

Answer:

V₂=28cm³

Step-by-step explanation:

<u>Way 1</u>

The volume of a cone is V=\frac{\pi r^{2}h}{3},  and  h₁ = 30 cm but the base (Ba₁) is 14 cm², so

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if h₂=7cm and Ba₂=12cm² then

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<u>Way2</u>

If the volume of a cone varies jointly as the height of the cone and the area of the base, then we must find the relationship between the bases and heights of the cones

Ba₁*h₁ = 30cm*14cm² = 420cm³

Ba²*h²=   7cm*12cm² =   84cm³

420/84 = 5; ratio = 5 also

V₂=V₁/5 ⇒ V₂=140cm³/5 = 28cm³

8 0
3 years ago
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8 0
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BARSIC [14]

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