3 years ago

Can someone please help me

Mathematics

1 answer:

OleMash [197]3 years ago

3 0

Answer:

12.25

Step-by-step explanation:

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A dome of a building is in the form of a hemisphere from inside it was whitewashed at the cost of rupees 4989.60 if the cost of

Luda [366]

Answer: $249.48\ m^2; 369.168\ m^3$

Step-by-step explanation:

Given

Cost of white-washing =Rs. 4989.60

Rate =20 per meter square

So, inside area of = $\dfrac{4989.60}{20}=249.48\ m^2$

The surface area of dome= $4\pi\ r^2=249.48$

$4\times 3.142\times r^2=249.48\\r^2=\frac{249.48}{4\times 3.142}=19.85\\r=4.455\ m$

The volume of air in the dome $V=\frac{4}{3}\pi r^3$

$V=\frac{4}{3}\cdot 3.142\cdot (4.45)^3\\V=369.17\ m^3$

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2 years ago

A certain third-degree polynomial function has zeros at-5, -1, and 2. Which could NOT be a factor of the expression that defines

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I am pretty sure it is the second option

Step-by-step explanation:

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2 years ago

To solve 5/7 - 2/n = 1/21

Usimov [2.4K]

Answer:

the answer is n=3

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3 years ago

A.1 B. 3 C. 4 D. 5 Note: l want answer true...please......;)

Ainat [17]

Hiya.
It would require 4 blocks, so it’s would be C.

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Find the area top/bottom: 10.8 sides: 8.7

mihalych1998 [28]

93.96. You multiply them together to get the answer.

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3 years ago

Can someone please help me ​

Can someone please help me