2 years ago

What is the surface area of a cylinder with base radius 3 and height 6?

Mathematics

1 answer:

Licemer1 [7]2 years ago

6 0

Answer:

169.646

Step-by-step explanation:

The equation for the surface area of a cylinder is $A=2\pi rh+2\pi rx^{2}$ . Plug in 3 for $r$ and 6 for $h$ to solve for surface area.

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A car’s speed before a sudden stop can be estimated by the formula

Veseljchak [2.6K]

Answer:

S = 30 mph

Step-by-step explanation:

A car’s speed before a sudden stop can be estimated by the formula :

$S=\sqrt{30gk}$

Here,

S = speed of the car in mph,

g = drag factor, and

k = length of skid mark in feet

If drag factor is 1, k = 30 feet

So,

$S=\sqrt{30\times 1\times 30}\\\\S=30\ mph$

Therefore, the correct option is (a) 30 mph.

6 0

2 years ago

Classify the polygon by its number of sides. State whether the polygon appears to be regular or not regular it’s has 8 sides

Alex73 [517]

Answer:

octagon, regular

Step-by-step explanation:

it has eight sides and the side all measure the same amount

7 0

2 years ago

Will give brainliest!!

yawa3891 [41]

Answer:

$r=\frac{9\cos \theta}{\sin^2 \theta}$

Step-by-step explanation:

The given equation in rectangular coordinates is;

$y^2=9x$

We use the relation;

$x=r\cos \theta$

and

$y=r \sin \theta$

This implies that;

$(r \sin \theta)^2=9(r \cos \theta)$

$r^2 \sin^2 \theta=9r \cos \theta$

Divide through by r to get;

$r \sin^2 \theta=9\cos \theta$

Divide both sides by $\sin^2 \theta$

$r=\frac{9\cos \theta}{\sin^2 \theta}$

8 0

3 years ago

An ice cream cone is filled with vanilla and chocolate ice cream at a ratio of 2:1. If the diameter of the cone is 2 inches and

Sophie [7]

Volume of cone=(1/3)hpir^2

d/2=r
d=2
d/2=2/2=1=r
h=6

V=(1/3)6pi1^2
V=2pi in^3 is volume

ratio of 2:1

2+1=3
2pi=3 units
divide both sides by 3
2/3pi=1 unit

vanila=2 units
times 2/3pi by 2
4/3pi
aprox pi=3.141592
4.188
round
4.2 in^3 of vanilla

3 0

3 years ago

Read 2 more answers

You want to buy an item that costs $100. Which is the most cost-effective choice for buying the item?

Lilit [14]

C. Buying it a percent discount without sales tax.

Because of not having to pay $10, so it is awesome.

5 0

2 years ago