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3 years ago

There is 0.3 probability that a group of insured motorists have an accident in a decade.

Mathematics

1 answer:

Margaret [11]3 years ago

4 0

Answer:

192

Step-by-step explanation:

to find the mean you have to use this formula: mean= N(total number of trials) times P( probability of "success")

n=640

p=0.3

640x0.3= 192

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Allushta [10]

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4 years ago

When bicycles are sold for $200 each, a sports shop can sell 90 bicycles in a season. For every $10 increase

77julia77 [94]

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3 years ago

What is 56% as a fraction<br> plz show me in steps:)

kiruha [24]

Answer:

14/25

Step-by-step explanation:

All percentages can be represented by PERCENTAGE/100

So 56% is 56/100

Then simplify by dividing by 2

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3 years ago

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A pyramid has a square base with sides of length s. The height of the pyramid is equal to - of the length of a side on the base.

Vera_Pavlovna [14]

<h3><u>Question:</u></h3>

A pyramid has a square base with sides of length s. The height of the pyramid is equal to 1/2 of the length of a side on the base. Which formula represents the volume of the pyramid?

<h3><u>Answer:</u></h3>

<em><u>The formula represents the volume of the pyramid is:</u></em>

$V=\frac{1}{6}s^3$

<h3><u>Solution:</u></h3>

<em><u>The volume of square pyramid is given by formula:</u></em>

$V = \frac{1}{3} a^2h$

Where, "h" is the height of pyramid

"a" is the length of side of base

Here given that, pyramid has a square base with sides of length s

Therefore,

a = s

The height of the pyramid is equal to 1/2 of the length of a side on the base

$h = \frac{1}{2} \times s\\\\h = \frac{s}{2}$

<em><u>Thus the volume of pyramid becomes:</u></em>

$V = \frac{1}{3} \times s^2 \times \frac{s}{2}\\\\V = \frac{s^3}{6}$

$\boxed{V=\frac{1}{6}s^3}$

Thus the formula represents the volume of the pyramid is $\frac{s^3}{6}$

5 0

4 years ago

Help please question in picture

german

Answer:

220

Step-by-step explanation:

Area of square=8*20=160

Area of triangle=(6*20)/2=60

160+60

8 0

3 years ago

Read 2 more answers