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3 years ago

How do you get 24 using 1, -6, -7, -3

Mathematics

1 answer:

Rainbow [258]3 years ago

3 0

Answer:

Step-by-step explanation:

We want to set up an expression involving 1, -6, -7, -3.

-6*-3--7+1

We use BODMAS to simplify:

We multiply to get:

18--7+1

We now add to obtain:

18--6

Note that negative negative gives addition.

Therefore:

18+6

This finally simplifies to:

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Answer:

4082

Step-by-step explanation:

Given

The composite object

Required

The volume

The object is a mix of a cone and a hemisphere

Such that:

Cone

$r = 10cm$ ---- radius (r = 20/2)

$h = 19cm$

Hemisphere

$r=10cm$

The volume of the cone is:

$V_1 = \frac{1}{3}\pi r^2h$

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$V_1 = \frac{1900}{3}\pi$

The volume of the hemisphere is:

$V_2 = \frac{2}{3}\pi r^3$

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So, the volume of the object is:

$V = V_1 + V_2$

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