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Triss [41]
3 years ago
15

Write the equation for the inverse of y = cos 2x

Mathematics
1 answer:
AlladinOne [14]3 years ago
3 0

Answer:

Inverse = (arcos x) / 2.

Step-by-step explanation:

y = cos 2x

2x= arcos y

x = (arcos y) / 2.

Inverse = (arcos x) / 2.

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Volcanic Ash

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3 years ago
Plz answer I'll give brainliest
goldenfox [79]

Answer:

900<x<1100

Step-by-step explanation:

The third side must be greater than the difference of the other two sides

10000- 1000 < 10x

9000< 10x

Divide by 10

9000/10 < x

900 < x

The third side must be smaller than the sum of the other two sides

10000+1000 > 10x

11000>10x

Divide by 10

11000/10>10x/10

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3 years ago
Explain how to solve the equation and then check the solution.<br><br> 9 = q – 4
Vika [28.1K]

Assignment: \bold{Solve \ And \ Check \ Equation: \ 9=q-4}

<><><><><><><>

Answer: \boxed{\bold{q=13}}

<><><><><><><>

Explanation: \downarrow\downarrow\downarrow

<><><><><><><>

[ Step One ] Switch Sides

\bold{q-4=9}

[ Step Two ] Add 4 To Both Sides

\bold{q-4+4=9+4}

[ Step Three ] Simplify

\bold{q=13}

[ Step Four ] Check Your Work

\bold{13 \ - \ 4 \ = \ 9}

[ Step Five ] Question: Is Equation Correct

\bold{Equation \ Is \ Correct, \ Therefore \ q=13}

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\bold{\rightarrow Mordancy \leftarrow}

5 0
4 years ago
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I need this answer plzzz!!
Dmitriy789 [7]

Answer: True, False, False, False, False

<u>Step-by-step explanation:</u>

a) 5x - 7(x - 1)

   5x - 7x + 7

         -2x + 7   ⇒  a = -2, b = 7   <em>One Solution</em>

b) 3(x - 5) - 7

   3x - 15 - 7

       3x - 22   ⇒  a = 3, b = -22   <em>One Solution</em>

c) 2 - 7x + 3 + 4x

  4x - 7x + 3 + 2  

              -3x + 5  ⇒   a = -3, b = 5   <em>One Solution</em>    

d) -3(x - 3) - 1

   -3x + 9 - 1

       -3x + 8   ⇒   a = -3, b = 8   <em>One Solution</em>

e) -5x + 2 + 2x + 4

   -5x + 2x + 2 + 4

                  -3x + 6  ⇒   a = -3, b = 6   <em>One Solution</em>  

4 0
3 years ago
72 ounces in 6 steaks
svet-max [94.6K]
12 ounces for each steak ..............
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