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2 years ago

Define the powers and how it is different to use a negative and positive power

Mathematics

1 answer:

lesya [120]2 years ago

7 0

Answer:

Hi here is answer hope it helps

Step-by-step explanation:

A positive exponent tells us how many times to multiply a base number, and a negative exponent tells us how many times to divide a base number.

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The radius of a cylindrical vessel is 7 cm and height is 1400 m . Find the cost of painting its inner curved surface area at the

Olegator [25]

Answer:

Cost = 616000 DHS per square centimetre.

Step-by-step explanation:

curved surface of a cylinder = 2 $\pi$ rh

r = 7 cm

h = 1400 m = 140000 cm

The outer curved surface area of the cylinder = inner curved surface area of the cylinder

The inner curved surface of the cylinder = 2 $\pi$ rh

= 2 x $\frac{22}{7}$ x 7 x 140000

= 2 x 22 x 1 x 140000

= 6160000

The inner curved surface of the cylinder is 6160000 square centimetre.

But, the cost of painting is at the rate of 10 DHS per square centimetre.

The inner curved surface of the cylinder = 6.16 x $10^{6}$ square centimetre.

cost of painting the inner curved surface area = $\frac{6.16*10^{6} }{10}$

= 616000 DHS per square centimetre

The cost of painting the inner surface is 616000 DHS per square centimetre.

6 0

2 years ago

What mathematical pattern can be seen in a perfect square trinomial and how is the pattern used to factor the trinomi

Shtirlitz [24]

(a ± b)² = a² ± 2ab + b² . . . . . . . (signs match)

The middle term is twice the product of the roots of the other two terms. This tells you the terms of the binomial are the square roots of the end terms.

The sign in the binomial will match the sign of the "2ab" term. The order of terms in the binomial doesn't matter. (a±b)² = (b±a)² when signs match.

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3 years ago

How many 1 x 2 shelfs cleats 8" long can be cut from a 1 x 2 board 16' long? how much is left?

inn [45]

8 i think so it might

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3 years ago

Mari spends $6 on cheese for a party she also plans to buy b boxes of crackers that cost $3 per box

PSYCHO15rus [73]

Answer:

The answer is 6+3b<or equal to 15

Step-by-step explanation:

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2 years ago

Triangle BDC is isosceles.

xxTIMURxx [149]

Answer:

CAB

Step-by-step explanation:

nddnmxmxnxmxmxmxxmc

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3 years ago

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