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Dmitry [639]
3 years ago
6

I need help on 1 & 2

Mathematics
1 answer:
Anon25 [30]3 years ago
3 0

Answer:

1 - Avenue A is perpendicular to South St.

2 - 70°

Step-by-step explanation:

1 - North, Center, and South St. are parallel lines. Therefore Ave A will be perpendicular to the three lines.

2 - Ave B and Center street forms a 70° angle. Since Center and South St. are parallel lines, they have corresponding angles. Therefore, Ave B and South St also form a 70° angle. The same is true for Ave B and North St.

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The expected activity time in PERT analysis is calculated as: the weighted average of a, m, and b, with m weighted 4 times as he
maria [59]

Answer:

\text{the weighted average of a, m, and b, with m weighted 4 times as heavily as a and b.}

Step-by-step explanation:

\text{The expected activity time in PERT analysis is calculated as:}

\mathbf{\dfrac{a+4m + b}{6}}

where;

\text{a = optimistic duration; }

\text{m = most likely duration and;}

\text{ b = pessimistic duration     from the above formula.}

3 0
2 years ago
Alice is paying her bill at a restaurant. The tax on the cost of her meal is 5%. She decides to leave a tip of 20% of the cost o
AnnyKZ [126]
5% is 0.05 in decimals. To get 5% of M, multiply it. To convert a percentage into decimals, divide the number by 100. 20/100 is 0.2. 0.2 is the tip. Do the same as 0.05 and add in the actual cost of the meal (M). Check image

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3 years ago
Use substitution to solve the problem below algebraically.<br><br> x = 41<br> x + 2y = 71
grandymaker [24]

Answer:

41 + 2y = 71

2y = 30

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Step-by-step explanation:

i believe that is right, if not sorry

7 0
3 years ago
Read 2 more answers
A california condor has a 114 inch wingspan. How many feet is that.
mixer [17]
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7 0
3 years ago
1 1/2 x ^ 3 * 8/15 * the power of 2
Mnenie [13.5K]

Your drawing was much more helpful and informative than your statements in words and symbols.

I see that you want to evaluate (3/2)^2 times (8/15)^2.

You could combine these two expressions into one, as follows:

3*8

( ----------- )^2

2*15

This, in turn, can be simplified by reduction:


( 4/5 )^2. Expanded, this result gives us 16/25.


Next problem

----------------------------

( 9/4 )^4 * ( 4/3 )^3

9^4 4^3

First, focus on ( ------- ) * ( ----------- )

4^4 3^3

Now reduce 4^3 / 4^4: The end result is 1/4.

Reduce 9^4 / 3^3. To do this, rewrite that 9 as (3^2), resulting in:

3^8 / 3^3. The end result is 3^5.

Putting this expression back together, we get 3^5 / 4 (answer)

4 0
3 years ago
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