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julsineya [31]
3 years ago
12

What equation represents the function on the graph

Mathematics
1 answer:
zloy xaker [14]3 years ago
3 0

Answer:

cos 4x

Step-by-step explanation:

Because this graph begins at (0, 1), we immediately suspect that it's a cosine function.  Additionally, since there are 4 cycles of this cosine function between x = 0 and x = 2pi, we suspect horizontal compression:

cos 4x

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Is Y=-3x-2 linear or no?
Tcecarenko [31]

Yes!

This would be in-fact a linear equation!

<h3>How?</h3>

This equation is set up in y=mx+b form, therefore we know it is a linear equation.

<h3>Example of a linear equation:</h3>

y=12x+2

The 12 is the mx in the equation.

And the 2 is the B in the equation! :)

That is how we solve that.

Any questions?

Have a great day!

3 0
3 years ago
Which of the following is a solution of 4x2 = − 9x − 4?
Arte-miy333 [17]

Step-by-step explanation:

4x2=−9x−4

Step 1: Subtract -9x-4 from both sides.

4x2−(−9x−4)=−9x−4−(−9x−4)

4x2+9x+4=0

For this equation: a=4, b=9, c=4

4x2+9x+4=0

Step 2: Use quadratic formula with a=4, b=9, c=4.

x=

−b±√b2−4ac

2a

x=

−(9)±√(9)2−4(4)(4)

2(4)

x=

−9±√17

8

x=

−9

8

+

1

8

√17 or x=

−9

8

+

−1

8

√17

8 0
4 years ago
HELP PLEASEEEEEEEEEEEEEE
mr_godi [17]

Answer:

use photo math

Step-by-step explanation:

ok

8 0
2 years ago
Given that ABCD is a rhombus, what is the value of x?
Alona [7]

we know that

<u>The rhombus</u> has the following properties:

Consecutive angles are supplementary

The diagonals bisect the angles

so

2x\°+2(3x+7)\°=180\°

Divide by 2 both sides

x\°+(3x+7)\°=90\°

solve for x

4x=(90-7)\°

x=83/4\°

x=20.75\°

therefore

<u>the answer is the option B</u>

x=20.75\°

7 0
3 years ago
Read 2 more answers
Please help with 12. Simplify.
IgorLugansk [536]

\dfrac 1{x+y} + \dfrac{3}{x-y} + \dfrac{2}{x^2-y^2} \\\\\\=\dfrac 1{x+y} + \dfrac{3}{x-y} + \dfrac{2}{(x+y)(x-y)}\\ \\\\=\dfrac{x-y+3(x+y)+2}{(x+y)(x-y)}\\\\\\=\dfrac{x-y+3x+3y+2}{(x+y)(x-y)}\\\\\\=\dfrac{4x+2y+2}{(x+y)(x-y)}\\\\\\=\dfrac{2(2x+y+1)}{(x+y)(x-y)}

7 0
2 years ago
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