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2 years ago

Find the surface area of the cylinder

Mathematics

1 answer:

STatiana [176]2 years ago

6 0

<h2>Solution:-</h2>

• Surface area of a cylinder = 2πr(r + h) sq. units.

In the above diagram,

Radius (r) of the cylinder = 13 cm.

Height (h) of the cylinder = 39 cm.

<h3>• Taking value of π = 3.14</h3>

Hence, Surface area of the cylinder = 2 × 3.14 × 13(13 + 39)

Surface area of the cylinder = (81.64 × 52) cm²

Surface area of the cylinder = 4245.28 cm²

The surface area of the cylinder is 4245.28 cm². [Answer]

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Division or is it multiply

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3 years ago

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I believe that is 275 because percent is just out of one hundred

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3 years ago

john and ted have a reputation of being late to events. If john is late 20% of the time and ted is late 40% of the time what is

oee [108]

Answer:

The probability that they will both be on time is 12/25.

Step-by-step explanation:

John is late 20% of the time.

So, he is prompt 80% of the time.

Ted is late 40% of the time.

So, he is prompt 60% of the time.

Since, both the events are independent,

p(John be on time ∩ Ted be on time) = p(John be on time) × p(Ted be on time)

$= \frac{80}{100}$ × $\frac{60}{100}$

= 0.80 × 0.60

= 0.48 or 48%

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Hence, the probability that they will both be on time is 12/25.

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3 years ago

23 – 7x2 + 19x – 19 is divided by 3 – 3? result in the form q(x) + baby

snow_tiger [21]

Answer:

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Step-by-step explanation:

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3 years ago

Find the approximate radius of a sphere with a surface area of 400 square inches.

Simora [160]

The equation for surface area of a sphere is SA=4*pi*r^2
We can plug in what we know to solve for r
400=4*pi*r^2
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√(100/pi)=r (square root of both sides)
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3 years ago