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3 years ago

What is the difference between surface area and volume? formulas please!

2 answers:

3 0

Surface area is the combined areas of all the sides of the shape and volume is the area within the shape

for example if you had a box filled with water the area of the box is the surface area and the amount of water would represent the volume

Masteriza [31]3 years ago

3 0

Surface area is a quantity of measurement associated with 2 dimensional shapes.
Example: Area of Rectangle = Length * breadth
Area of triangle = (1/2) * base* height.
While:
Volume is a quantity of measurement associated with 3 dimensional solid shapes.
Example: Volume of Cuboid = Length * breadth * height
Volume of sphere = (4/3) * Pi* r^3.

We can see that Area is 2 dimensional while volume is 3 dimensional.

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How do you like math plz explain

Digiron [165]

I like math because it gets me thinking a lot. math helps me in the world because we need to know how to do math in order to go shopping or we will not give the cashier the correct amount or maybe you will give them an extra amount of money because you can't do math.

6 0

3 years ago

Read 2 more answers

You randomly survey men and women about whether they plan to watch a football game on Sunday afternoon. A total of 40 men plan t

Alecsey [184]

Answer: 101

Step-by-step explanation:

45 women total

17 women will not watch the game

So 33 people did not want to watch the game and 17 are women

33-17 = 16 men who won’t watch the game

So 40 men who will and 16 men who won’t equals 56 men and 45 women

56+45= 101

5 0

3 years ago

PLEASE LITTERALLY HELP ME!!! IM STRUGGLINGGGG!!!

tangare [24]

Answer:

well you see, I don't care

4 0

3 years ago

In the United States, 35% of households own a 4K television. Suppose we take a random sample of 150 households. (a) Describe the

sattari [20]

Answer:

(a) The distribution of the sample proportion is Normal distribution.

(b) The probability that in this sample of 150 households that more than 50% own a 4K television is 0.00012.

Step-by-step explanation:

We are given that in the United States, 35% of households own a 4K television.

Suppose we take a random sample of 150 households.

Let $\hat p$ = sample proportion of households who own a 4K television.

The z-score probability distribution for sample proportion is given by;

Z = $\frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion

p = population proportion of households own a 4K television = 35%

n = sample of households = 150

(a) The distribution of the sample proportion is related to the Normal distribution.

(b) Probability that in this sample of 150 households more than 50% own a 4K television is given by = P( $\hat p$ > 0.50)

P( $\hat p$ > 0.50) = P( $\frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ > $\frac{ 0.50-0.35}{\sqrt{\frac{0.50(1-0.50)}{150} } }$ ) = P(Z > 3.67) = 1 - P(Z $\leq$ 3.67)

= 1 - 0.99988 = 0.00012

Now, in the z table the P(Z $\leq$ x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 3.67 in the z table which has an area of 0.99988.

Therefore, probability that in this sample of 150 households more than 50% own a 4K television is 0.00012.

8 0

3 years ago

At noon, the temperature is 76°F.

sergiy2304 [10]

Answer:

25%

Step-by-step explanation:

% Change = Change ÷ Original × 100

% Change = 19 ÷ 76 × 100

% Change = .25 × 100

% Change = 25

6 0

3 years ago