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Leni [432]
3 years ago
14

The quotient of negative 1 and the product of a number and 21.

Mathematics
1 answer:
MakcuM [25]3 years ago
5 0
<span>Let the number be x.
The quotient of negative 1 and the product of a number and 21 is -1/21x</span>
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1-sin^2x/sinx-cscx <br><br>How do I solve this problem? I keep getting the wrong answer.
Annette [7]

Answer:

-sinx

Step-by-step explanation:

a trig identity that is crucial to solving this problem is: sin^2 + cos^2 = 1

with knowing that, you can manipulate that and turn it into 1 - sin^2x = cos^x

so 1-sin^2x/sinx - cscx becomes cos^2x/sinx - cscx

it is also important to know that cscx is the same thing as 1/sinx

knowing this information, cscx can be replaced with 1/sinx

(cos^2x)/(sinx - 1/sinx)

now sinx and 1/sinx do not have the same denominator, so we need to multiply top and bottom of sinx by sinx; it becomes....

cos^2x

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

(sin^2x - 1)/sinx

notice how in the denominator it has sin^2x-1 which is equal to -cos^2x

so now it becomes:

cos^2x

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

-cos^2x/sinx

because we have a fraction over a fraction, we need to flip it

cos^2x          sinx

---------- * ----------------

1                  -  cos^2x

because the cos^2x can cancel out, it becomes 1

now the answer is -sinx

3 0
3 years ago
Someone help please I’ll mark brainliest! Leave a small explanation
masya89 [10]

Answer:

D. (-3,1)

Step-by-step explanation:

When putting pairs it is (X,Y) (horizontal,vertical)

The ones both meet at point D. (-3,1)

7 0
3 years ago
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Square root of 256 is
miskamm [114]

Answer:

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Step-by-step explanation:

7 0
2 years ago
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302.406 + 7,710.826 What is the sum? ​
Alexus [3.1K]

Hi! I believe your answer is <u>8,013.232</u>. The work is shown below. I hope this helps you! Good luck and have a great day. ❤️✨

4 0
3 years ago
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Need help with this question
goldfiish [28.3K]

Answer:

x = 12

Step-by-step explanation:

Complementary angles add up to have a sum of 90 degrees. We can create an equation and solve for x.

3x + 6x - 18 = 90

~Simplify

9x - 18 = 90

~Add 18 to both sides

9x = 108

~Divide 9 to both sides

x = 12

Best of Luck!

4 0
3 years ago
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