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disa [49]
3 years ago
7

Solve: 10 sin^2(X) - 3sin(X) - 1 = 0

Mathematics
1 answer:
Svetlanka [38]3 years ago
3 0

Answer:

(2u - 1)(5u + 1) =0

Step-by-step explanation:

The two subtractions in the equation means that it will be a plus and a minus and 10u would not get -3 nor -1

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Anyone with a knee injury or any doctor! What does it mean if my knee popped locked up all in like 1.5 seconds and then it now h
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Answer:

Knee pain can have causes that aren't due to underlying disease. Examples include heavy physical activity, lack of use, injuries such as sprains or strains, sitting in a constrained area, or sitting on knees for a prolonged period.

Step-by-step explanation:

possibly Chondro malacia

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Symptoms may include

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7 0
3 years ago
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Five minus 6 times a number is equal to -11 plus 2 times the number​
zepelin [54]

Answer:

No its not equal

Step-by-step explanation:

5 0
3 years ago
Solve by substitution. Please show work!!!<br> x+4y=-3<br> x+7y=-12
marshall27 [118]

\huge\mathcal\colorbox{red}{\color{pink}{ᶛɲƧཡэʀ}}

x = 9

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6 0
3 years ago
Max has 5.50. He has eight more quarters than he does nickels. He had four times as many dimes as he has nickels. How many quart
Oliga [24]

Answer:

<h2>There are 13 quarters, 5 nickels and 20 dimes.</h2>

Step-by-step explanation:

Givens

  • Max has $5.50.
  • He has eight more quarters than he does nickels.
  • He had four times as many dimes as he has nickels.

From these statements, we can deduce algebraical expressions to solve the problem. Let's call q quarters, n nickels and d dimes.

q=n+8 (8 more quarters than nickels)

d=4n (he has four times as many dimes as he has nickels).

0.25q+0.05n+0.10d=5.50 (Max has a total of $5.50, one quartes is $0.25, one nickel is $0.05 and one dime is $0.10).

Let's replace the first two expressions into the third equation

0.25(n+8)+0.05n+0.10(4n)=5.50\\0.25n+2+0.05n+0.40n=5.50\\0.70n=5.50-2\\n=\frac{3.50}{0.70}\\ n=5

There are 5 nickels.

Now, we use this value to find the number of quarters

q=5+8=13

There are 13 quarters.

Also, d=4(5)=20

There are 20 dimes.

Therefore, there are 13 quarters, 5 nickels and 20 dimes.

3 0
3 years ago
Solve for g:<br> 3/16=(-5/4)+g
Musya8 [376]

Answer:

g = 23/16

Step-by-step explanation:

3/16 = (-5/4) + g

g = 5/4 + 3/16

g = 23/16

7 0
3 years ago
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