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Illusion [34]
2 years ago
9

3x^2yz^3-9x^3y^2z^2+12x^2y^3z^2

Mathematics
1 answer:
PolarNik [594]2 years ago
6 0

3×2=692047 82837=284749×2484r133.e9274

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Prove this identity sin(2A)=2sinAcosA.
34kurt
The solution for proving the identity is as follows:

sin(2A) = sin(A + A) 
As sin(a + b) = sinacosb + sinbcosa, 
<span>sin(A + A) = sinAcosA + sinAcosA 
</span>
<span>Therefore, sin(2A) = 2sinAcosA

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your inquiries and questions soon. Have a nice day ahead!
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7 0
2 years ago
Jay had 6 times as much money as Kay. Then Jay gave Kay $33. Jay now has twice as much money as Kay. How much did they each star
timofeeve [1]

Answer:

Jay started with $148.5 and Kay with $24.75.

Step-by-step explanation:

With the information provided you know that Jay had 6 times as much money as Kay wich can be expressed as:

J=6K, where

J is the money Jay had

K is the money Kay had

Also, you know that  Jay gave Kay $33 and Jay now has twice as much money as Kay, which would be:

J-33=2(K+33)

Now, you can replace J=6K in this equation and solve for K:

6K-33=2K+66

6K-2K=66+33

4K=66

K=24.75

Then, you can replace the value of K in J=6K:

J=6*24.75

J=148.5

According to this, the answer is that Jay started with $148.5 and Kay with $24.75.

7 0
2 years ago
What is the radius of a circle with an area of 32.1 square feet
erik [133]
3.2 is the answer.
 
If you want to learn the steps to the process
just copy and paste this "how to find the radius of a circle with an area."
6 0
3 years ago
A video game has five stages. If Will beat 4/5 of the stages, what percent of the game has he finished
fiasKO [112]

Answer:

75%

Step-by-step explanation:

1 = 10%

2 = 25%

3 = 50%

4 = 75%

5 = 100%

5 0
2 years ago
Please help!!! ASAP<br><br> With all these questions
andrey2020 [161]
#1. 4:7 8:14 12:21
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