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koban [17]
3 years ago
7

What is the first step in simplifying the following expression?

Mathematics
1 answer:
Natali5045456 [20]3 years ago
8 0

According to BODMAS rule...

We would first solve...

Bracket i.e.(4+7)

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Find the surface area of a water tower that is 40 feet tall and has a diameter of 20 feet.
Ganezh [65]

Answer:

The surface area is 3140 feet².

What is Surface Area?

Surface area is the amount of space covering the outside of a three-dimensional shape.

Given that:

Diameter = 20 feet

radius =  20 ÷ 2 = 10 feet

Now, Surface area  will be,

=2πr²+ 2πrh

= 2 × 3.14 × (10)² + 2 × 3.14 × 10 × 40

= 6.28  × 100  + 6.28  × 400

= 628 + 25.12  × 100

= 628+ 2512

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hence, the surface area is 3140 feet².

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}

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