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Blizzard [7]
1 year ago
11

a classroom has 24 bulbs and four of the bulbs are failed. how many arrangements are the four failed bulbs are possible?

Mathematics
1 answer:
astraxan [27]1 year ago
8 0

Answer:

Step-by-step explanation:

3

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1. The ordered pair (-1, -1) is a solution of the system -4x + 2y = 2 and x + y = -2.
Nastasia [14]
1: (-1,-1) is (x, y) to see if it is a solution, you would just plug in x and y and see if the equation is true.
-4 (-1) + 2(-1) = 2
4 + -2 = 2
2 = 2 CORRECT
So... plug in x and y in the second equation to Make sure it works for that one too.
-1 + -1 = -2
-2 = -2 CORRECT
So, yes. (-1,-1) is a solution to both equations.
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3 years ago
For a saturday matinee, adult tickets cost $5.50 and kids under 12 pay only $3.00. if 90 tickets are sold for a total of $395, h
juin [17]
Kids - 40 ticketsadults - 50 tickets
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3 years ago
-3, 6, -9, 12, -15, . . .
Nataly_w [17]
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Alex is standing 60 feet from the base of a flagpole. He measures the angle of elevation to the top of the pole as 35º. Vera is
ivanzaharov [21]

Answer:

49.4 degrees

Step-by-step explanation:

In Triangle AXY,

Tan 35^0=\frac{|XY|}{60} \\|XY|=60*Tan 35^0=42.01\:feet\\$Therefore, Height of the pole=42.01 \:feet

We want to determine the angle of elevation from the point Vera is standing to the top of the flagpole, which is the angle at V in the diagram.

In Triangle XVY

|VY|=36 feet

Tan \theta=\frac{|XY|}{|VY|} \\Tan \theta=\frac{42.01}{36}\\ \theta=arctan(\frac{42.01}{36})\\ \theta=49.4^0

Therefore, the angle of elevation from the point Vera is standing to the top of the flagpole is 49.4 degree to the nearest tenth of a degree.

4 0
3 years ago
The tables show Finn's history test scores and science test scores.
Stels [109]

Answer:

it would be b becuse that shows how you are able to get the answer

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3 years ago
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