Someone PLZ ANSWER QUICK PLZ !! :)

Mathematics

1 answer:

Verizon [17]3 years ago

4 0

Answer: Option c.

Step-by-step explanation:

To find surface area, add two area of circle and curved surface area.

Curved surface area formula = 2*π*r*h, where r = radius, h = height.

So total surface area will be,

2π*r ^ 2 + 2*π*r*h

Remember that radius(r) = 4 because diameter is given in figure.

You might be interested in

Question? <br><br> rewrite using standard notation 9.4 x 10^1 ????

grigory [225]

In general if multiplying, move decimal to RIGHT by whatever the exponent is.
In this example 10^1, the exponent = 1

9.4 with decimal moved 1 place to right = 94

3 0

3 years ago

Use the diagram to find lengths. BP is the perpendicular bisector of AC. CQ is the perpendicular bisector of BD. AB = BC = CD.

Doss [256]

Answer:

hhhhhh i have no idea

Step-by-step explanation:

sorrrrrrryyyyyyyyyyy

3 0

3 years ago

Read 2 more answers

The following are the ages (years) of 5 people in a room:

Nata [24]

Answer:

The age of the person who entered the room is 15

Step-by-step explanation:

Ages of 5 people in a room are:

17, 16, 15, 17, 22

A person enters room, the mean age of 6 people is 17.

We need to find the age of person who entered the room.

We know that: $Mean=\frac{Sum\:of\:all\:data\:values}{Number\:of\:data\:Values}$

Now, we have mean of 6 people that is 17

We know the age of 5 people while age of one person is unknown.

Let age of person which is unknown= x

So, we can write:

Sum of all data values = 17+16+ 15+ 17+ 22+x

where x is the age of person who enters the room.

Finding x

$Mean=\frac{Sum\:of\:all\:data\:values}{Number\:of\:data\:Values}\\17=\frac{17+16+ 15+ 17+ 22+x}{6}\\17=\frac{87+x}{6}\\17*6=87+x\\102=87+x\\x=102-87\\x=15$