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2 years ago

When you add two rational numbers, each number can be written as what?

1 answer:

3 0

So multiplying two rationals is the same as multiplying two such as fraction as when you multiplying two rational numbers produces another rational number.

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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

2 years ago

What is the value of (x)

Svet_ta [14]

Answer:

x=1

Step-by-step explanation:

anything times 1 is itself

7 0

2 years ago

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A wrestler competes in 25 matches. Of those matches, he lost 5. What percent of the matches did the wrestler lose

Kitty [74]

5 over 25 = 1/5
1/5 = 20 %
Hope this helped :)

4 0

2 years ago

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How is the surface area of a prism determined?

Oliga [24]

Answer:

Option b. sum of all areas of faces

Step-by-step explanation:

we know that

The surface area of the prism is equal to the area of its bases plus the area of its four rectangular lateral faces

$SA=2B+PH$

where

B is the area of the base

P is the perimeter of the base

H is the height of the prism

therefore

sum of all areas of faces

7 0

2 years ago

Will give brainliest if you get the right answer.

Alborosie

D i think sorry if its wronf

4 0

2 years ago

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