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Dahasolnce [82]
3 years ago
10

How would you verify tan3x = (3tanx - tan^3 x) / ( 1 - 3tan^2 x) and sin4x = (cosx)(4sinx - 8sin^3x) step-by-step?

Mathematics
1 answer:
padilas [110]3 years ago
5 0
Hope this helps you.

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Use back-substitution to solve the system of linear equations.
ludmilkaskok [199]

Step-by-step explanation:

x - y + 5z = 29

y + 2z = 4

z = 7

since z = 7 we can use this value in second equation

y + 2×7 = 4 and y = -10

now we know the value of y we can solve the first equation

x -(-10) + 5×7 = 29

x + 10 + 35 = 29

x = -11

5 0
4 years ago
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Blank - 5.27 = 2.99<br> literally forgot how decimals work
bulgar [2K]

Answer:

8.26

Step-by-step explanation:

you can solve this by putting x for blank

x-5.27=2.99

solve for x

x-5.27+5.27=2.99+5.27

x=8.26

3 0
2 years ago
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You spin a spinner with eight what is the sample space?
Nastasia [14]
{1,2,3,4,5,6,7,8}= Sample space
3 0
3 years ago
Need Assistance<br>Show Work​
Evgesh-ka [11]

Answer:

-52, and the opposite of this is 52.

Step-by-step explanation:

If we are losing 52 pounds, then our number is -52 since we are losing 52 pounds (adding a negative number to a positive number is the same as subtracting that number).

The opposite of a number is when we negate the number, or multiply it by -1.

A negative number times a negative number is a positive number.

-52\cdot-1 = 52\cdot1 = 52

Hope this helped!

6 0
3 years ago
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What is the mode? 22, 7, 22, 1, 7, 18, 18, 16, 6, 6, 7
kolbaska11 [484]

Answer:

7

Step-by-step explanation:

Put them in L to G

1 6 6 7 7 7 16 18 18 22 22

and u see how many times 7 repeated den all numbers.

3 0
3 years ago
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