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ivanzaharov [21]
2 years ago
11

Please I need Help ASAP

Mathematics
1 answer:
spayn [35]2 years ago
5 0
Sorry I’m only answering this so I can ask
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What are all the exact solutions of 2 sin^2 x- sin x = 0
alexandr1967 [171]
Factor:

2sin^2x-sinx = 0

sinx(2sinx - 1) = 0

Therefore the solutions are when:

sin x = 0
And
sinx = 1/2

So sinx = 0
is true when x = 0 and pi  and all the angles coterminal with these points.  Thus, the answer is x = pi*n, (where n is some integer)

sinx = 1/2
is true when x = pi/6 and 5pi/6 and the angles coterminal with these points.
Thus, the answer is x = pi/6 + 2pi*n (where n is some integer)
and x = 5pi/6 + 2pi*n (where n is some integer)
7 0
3 years ago
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in a particular class of 23 students, 18 are men. what fraction of the students in the class are men?k
Mademuasel [1]
It gave you the answer for men they said their were 18 men out of 23 so are they asking for women or actually men cause if it was that it would be 18/23
7 0
2 years ago
Which rate has the same unit rate as 126 miles in 9 hours.
OLEGan [10]

Answer: THE ANSWER IS C

Step-by-step explanation:

5 0
2 years ago
The formula for potential energy is P = mgh, where P is potential energy, m is mass, g is gravity, and h is height. What is heig
Ivan

the height:

h = \frac{P}{mg}

(with g being the gravitational acceleration)

3 0
3 years ago
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In year 13, the scientist will put tree wrap around tree 1 to protect it from the winter snow. The height of the tree wrap needs
Dominik [7]

Answer:

22 feet²

Step-by-step explanation:

We are given:

height of tree h = 45 inches

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But d = 22.2inches

Therefore area will be

Area = 22.2π × 45 inches²

Area = 3137 inches²

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1 foot = 12 inches.

Therefore,

1 square foot = 1foot × 1foot = 12inches×12inches

= 3137inches² / 144 inches²

= 22feet²

Note: I attached missing data which states that diameter at year 13 is 22.2inches

6 0
2 years ago
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