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2 years ago

Explain how one whole, one tenth, and one hundredth are related

1 answer:

8 0

One whole is the whole number. where as one tenth is the first number in the decimal, and one hundredth is the second number in the decimal

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A project’s critical path is composed of activities A (variance .33), B (variance .67), C (variance .33), and D (variance .17).

julia-pushkina [17]

Answer:

The standard deviation on the critical path = 0.834

Step-by-step explanation:

Variance of activity A ( $V_{1}$ ) = 0.33

Variance of activity B ( $V_{2}$ ) = 0.67

Variance of activity C ( $V_{3}$ ) = 0.33

Variance of activity D ( $V_{4}$ ) = 0.17

Thus the standard deviation on the critical path ( $\alpha ^{2}$ ) = $V_{1} ^{2}$ + $V^2_{2}$ + $V^2_{3}$ + $V^2_{4}$

$\alpha ^{2}$ = $0.33^{2}$ + $0.67^{2}$ + $0.33^{2}$ + $0.17^{2}$

$\alpha ^{2}$ = 0.6956

$\alpha$ = 0.834

The standard deviation on the critical path = 0.834

4 0

1 year ago

The amount of caffeine in the body of a healthy adult after drinking espresso decreases exponentially, with a half-life of appro

yarga [219]

After 6 hours the amount of caffeine 40 mg. After another 6 hours the amount of caffeine is 20 mg. It takes 12 hours for the total amount of caffeine to drop down to 20 mg. the answer is 11 am -B. Hope this helps!

7 0

1 year ago

Read 2 more answers

1. An AP Statistics class starts a project to estimate the average number of hours a student at their high school sleeps per nig

Vladimir [108]

Answer:

Option E

Step-by-step explanation:

This survey will not be reliable as it is chosen for convenience; the first 120 students to arrive in school on a particular morning and this collection of individuals may not be a representative of the population. The study may become biased because it does not take into account the latecomers among the students which might have been changed the study from systematically favoring certain outcomes.

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1 year ago

Diana sold 336 muffins at the bake sale.Bob sold 287 muffins.Bob estimates that he sold 50 fewer muffins than Diana.how did he e

malfutka [58]

Step-by-step explanation:

Since we have given that

Number of muffins Diana sold at the bake sale = 336

Number of muffins Bob sold at the bake sale = 287

Now, here we are using the method of estimation i.e. rounding the integers to nearest ones.

By estimation, we get

Number of muffins Diana sold at the bake sale = 340

Number of muffins Bob sold at the bake sale = 290

So,

Difference between them is given by

$340-290\\=50$

Hence, Bob sold 50 fewer muffins than Diana.

3 0

1 year ago

Read 2 more answers

Jake, Lionel, and Wayne work as house painters for Paint Well Company. Jake can paint 1 room in t hours. Lionel can paint a room

34kurt

Hours to paint one room
Jake: t hours 
Lionel: t-2 hours 
Wayne: (1.5)(t-2) hours 

Now who is Donald? 

Shall we assume that by "Donald" you meant "Wayne"? 

If t is 6 hours, then the hours to paint one room is 
Jake: 6 hours 
Lionel: 4 hours 
Wayne: 6 hours 
This means that in one hour: 
Jake can paint 1/6 of a room, 
Lionel can paint 1/4 of a room, 
Wayne can paint 1/6 of a room. 
Added together, the three of them can paint (1/6 + 1/4 + 1/6) = 7/12 of a room in one hour.

7 0

1 year ago