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Crank
3 years ago
14

If tanA= 12/5 and A is not acute, find Sin2A and cos2A.​

Mathematics
1 answer:
hammer [34]3 years ago
8 0

Answer: Sin 2A = 14/13

                Cos 2A =10/13

Step-by-step explanation: First do subtraction 12*12 ., then 5*5 ., the result will be 169  , then route it and got the result 13 , last we need to the value of polygon . We will got the  value of polygon 13 . then we will got the actual value of those two result . Hope you got the point.

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When given the two points (2,-3) and (2,-4) how do you write an equation in standard form
Nadusha1986 [10]

Answer:

2,-4

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1

Step-by-step explanation:

That is how write the equation because you have to line them up by the higher x or y value

7 0
3 years ago
Two sides of a triangle are equal in length and double the length of the shortest side. The perimeter of the triangle is 36 inch
chubhunter [2.5K]

Answer:

Two equal sides = 14.4 inches each

Shortest side = 7.2 inches

Step-by-step explanation:

a + b + c = 36

a = b

a = 2c

then:

c = a/2

a + a + a/2 = 36

2a + a/2 = 36

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a = 72/5

a = 14.4

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c = 14.4/2

c = 7.2

a = b

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Check:

14.4 + 14.4 + 7.2 = 36

3 0
3 years ago
If there are 5 boys and 7 girls, write the ratio of girls to total students
Marizza181 [45]

Answer:

7:12

Step-by-step explanation:

boys=5

girls=7

total=boys+girls

12=5+7

girls:total

7:12

3 0
2 years ago
Does the graph of the equation y = 7 - 2x increase or decrease?
kobusy [5.1K]
Since the Slope is -2 the line on the graph would decrease 

:) Hope this helps!!

6 0
3 years ago
14)+10000-6hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
rosijanka [135]

Answer:

thnx for the points May God bless you

5 0
3 years ago
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