3 years ago

Question: 1−cos2 x = A. sin2x B. -1

Mathematics

1 answer:

mestny [16]3 years ago

5 0

Answer:

Sin^2 x

Step-by-step explanation:

Here, we want to evaluate;

1 - sin^2x

Mathematically ;

sin^2 x + cos^2 x = 1

Thus;

sin^2 x = 1 - cos^2 x

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Question 1(Multiple Choice Worth 5 points)

Nadusha1986 [10]

Answer: $arc\ length =13.19cm$

Step-by-step explanation:

You need to use the following formula:

$arc\ length=r\theta$

Where "r" is the radius and $\theta$ is is the central angle of the arc in radians.

Assuming that that the angle $\frac{3\pi }{5}$ is the central angle of the arc, and knowing that the radius is 7 centimeters, you can substitute values into the formula.

Therefore, you get:

$arc\ length=r\theta\\\\arc\ length= (7cm)(\frac{3\pi}{5})}\\\\arc\ length =13.19cm$

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3 years ago

5( 5X – 10) = 15 solve it

olga55 [171]

5(5x-10)=15
5x-10=3
5x=10+3
5x=13
Divide both sides by 5-5 and 5 cancel out to leave you with x 13/5 =2.6
X=2.6

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3 years ago

5( x + 9) What is the answer to that

emmasim [6.3K]

Answer:

5x + 45

Step-by-step explanation:

distribute 5 to both x and 9 so multiply them both

7 0

2 years ago

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Victor has a bag of dimes and quarters. He has a total of 36 coins worth $5.40.

nata0808 [166]

Answer:

{x+y=36

0.1x+0.25y=5.4

Step-by-step explanation:

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3 years ago

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Can someone help me i dont know what to do here please Explain and answer

Juli2301 [7.4K]

Answer:

For the tickets sold collum, your going to do 1,2,3,4,5,6,7 and for the total revenue, your going to do 34.00 68.00 102.00 136.00 170.00 204.00 238.00

Step-by-step explanation:

Then for ordered pairs, you´re going to do 1, 34.00 2, 68.00 3, 102.00 and so on. Then you graph it, oh and K= 34.00

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3 years ago