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weqwewe [10]
3 years ago
8

Can someone help me pleas

Mathematics
2 answers:
ziro4ka [17]3 years ago
8 0

Answer:

12x-84y+24z

Step-by-step explanation:

ddd [48]3 years ago
5 0

Answer:

12x - 84y + 24z

Step-by-step explanation:

When doing these if there is a number outside of the parenthesis then that mean you have to combine those terms by that i mean

12(x -7y + 2z)

12× X is combined to be 12x

12 × -7y = -84y

12 × 2z = 24z

so your new expression would be

12x - 84y + 24z

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skad [1K]

Answer:

V=430.19\ cm^3  or  V=136.93\pi\ cm^3

Step-by-step explanation:

The surface area of a sphere is:

A_s=4\pi r^2

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So

4\pi r^2=275.561

We solve the equation for r

4\pi r^2=275.561\\r^2 = \frac{275.561}{4\pi}\\\\r=\sqrt{ \frac{275.561}{4\pi}}\\\\r=4.683\ cm

Now we know the radius of the sphere.

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V=\frac{4}{3}\pi r^3

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V=\frac{4}{3}\pi (4.683)^3

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4 years ago
A man purchased a car selling for RM12,750 by making instalment payments. If he was charged 4% based on the reducing balance and
a_sh-v [17]

Answer:

48 months

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