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4 years ago

PLEASE HELP WHAT IS THE UNIT RATES OF THIS

Mathematics

2 answers:

noname [10]4 years ago

6 0

#7

1. Find the volume of the pyramid (l×w×h/3); you should get 64cm³

2. Find the volume of the cube (l×w×h); you should get 512cm³

3. Add the two products; the glass paperweight's volume is 576cm³

#8

1. Find the surface area (SA) of the cube (area of one square×5); it is 320cm²

2. Find the SA of the pyramid (exclude the square base); it is 80cm² ((slant height×(length/2))×4)

3. Add the surface areas; the sum should be 400cm²

Aleksandr-060686 [28]4 years ago

4 0

I honestly don’t know

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An individual who has automobile insurance from a certain company is randomly selected. Let Y be the number of mov- ing violatio

olga2289 [7]

Answer:

a) $E(Y) = \sum_{i=1}^n Y_i P(Y_i)$

And replacing we got:

$E(Y) =0*0.60 +1*0.25 +2*0.1 +3*0.05 = 0.60$

b) $E(Y^2) =0^2*0.60 +1^2*0.25 +2^2*0.1 +3^2*0.05 = 1.1$

And then the expected value would be:

$E(100Y^2) = 100*1.1= 110$

Step-by-step explanation:

We assume the following distribution given:

Y 0 1 2 3

P(Y) 0.60 0.25 0.10 0.05

Part a

We can find the expected value with this formula:

$E(Y) = \sum_{i=1}^n Y_i P(Y_i)$

And replacing we got:

$E(Y) =0*0.60 +1*0.25 +2*0.1 +3*0.05 = 0.60$

Part b

If we want to find the expected value of $100 Y^2$ we need to find the expected value of Y^2 and we have:

$E(Y^2) = \sum_{i=1}^n Y^2_i P(Y_i)$

And replacing we got:

$E(Y^2) =0^2*0.60 +1^2*0.25 +2^2*0.1 +3^2*0.05 = 1.1$

And then the expected value would be:

$E(100Y^2) = 100*1.1= 110$

4 0

3 years ago

Which measurement is NOT equal to 60 m?

omeli [17]

Answer:

1-59m

Step-by-step explanation:

4 0

3 years ago

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Amanda put $1500 in her savings account. After five years she had $1833 in the account. What rate of interest did she earned use

sveta [45]

Answer: 4.01% interest rate

This value is approximate. It is rounded to the nearest hundredth of a percent.

============================================

Work Shown:

A = P*e^(r*t)

1833 = 1500*e^(r*5)

1833/1500 = e^(5r)

1.222 = e^(5r)

e^(5r) = 1.222

5r = Ln(1.222)

5r = 0.2004888607494

r = 0.2004888607494/5

r = 0.04009777214989

r = 0.0401

r = 4.01%

4 0

3 years ago

2 x - 3+ 1 x6 is equal to? A. - 48 B. - 1 C.0 D. 1

Marrrta [24]

Answer:

C.0

Step-by-step explanation:

THINK PEMDAS

1*6 multiply first. 1*6 is 6

2*-3 is -6

then when you add them, they cancel out

6-6=0

8 0

3 years ago

The temperature is -3 °C at 6 a.m. and rises 12 °C by midday. What is the temperature at midday?

Pavlova-9 [17]

Answer:

9 C at midday

Step-by-step explanation:

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3 years ago

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