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Alex787 [66]
3 years ago
11

Subtract. (9x2+3x+6)–(8x2+3)

Mathematics
1 answer:
max2010maxim [7]3 years ago
3 0

Answer:

x^2 +3x +3

Step-by-step explanation:

(9x^2+3x+6)–(8x^2+3)

Distribute the negative sign

(9x^2+3x+6)–8x^2-3

Combine like terms

9x^2–8x^2+3x+6–8x^2-3

x^2 +3x +3

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Nick wanted to determine the length of one blade of a windmill. He stood at a point on the ground 440 feet from the windmill's b
mafiozo [28]

Answer:There are two right triangles. You need to find the opposite side (the height) of each of them. The difference between the two is the height of the blade, x.

You know the adjacent, 440, and you are looking for the opposite, so you need to use tan for both.

tan (30) = y / 440

y = 440 * tan (30) = 254.034...

tan (38.8) = z / 440

y = 440 * tan (38.8) = 353.769.--

353.8 - 254.0 = 99.8 = 100 feet.

Step-by-step explanation:

7 0
2 years ago
Esmerelda bought a bag of jelly beans. There were 24 green jelly beans, which made up 8%, percent of all the jelly beans in the
Margarita [4]
So, let's look at the problem once again.

8%, or 8/100 of the bag were green jelly beans.

Let's see what we can do to find out a number of other jelly beans, not including the green ones.

We know that 92% of jelly-beans are not green.

92% is 11.5 times more than 8%
(92/8)

24 (or 8%) times 11.5 = 276

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276 plus 24 = 300.

Answer: 300 jelly beans were in one bag.
6 0
3 years ago
Solve 2(4x + 5) > 7x + 20.
choli [55]
2(4x+5)>7x+20  perform indicated multiplication on left side

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x+10>20  subtract 10 from both sides

x>10

or in interval notation, x=(10, +oo)
8 0
3 years ago
PLZ HELP!!!
Goshia [24]
The first and last choices are the only ones whose angles total 180 degrees, so they're the only possible triangles.
6 0
3 years ago
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For 6: 12, 18, 24, 30, 36
For 9: 18, 27, 36, 45, 54
For 7: 14, 21, 28, 35, 42
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3 years ago
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