12x-y when x= 1/3, y=-2

Mathematics

2 answers:

Darina [25.2K]3 years ago

7 0

Your equation is 13(1/3)-(-2)=x. You just solve normally. Answer: 6.3333 or 6&1/3

Basile [38]3 years ago

4 0

Answer:

Step-by-step explanation:

12 x 1/3-2

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Which graph is a translation of f(x) = x2 , according the rule:

bixtya [17]

For this case we have the following original function:
$f (x) = x ^ 2
$
We apply the following transformation:
Vertical displacements:
Assume k> 0
To graph f (x) - k, move the graph k units down.
Applying the transformation for k = 5 we have:
$y = x ^ 2 - 5
$
Therefore, the graph moves 5 units down.
Answer:
Third graph

8 0

3 years ago

How do I get this answer?

Keith_Richards [23]

Answer:

Step-by-step explanation:

Several trig identities are involved in the proof of this. This is the order in which they are used.

cos(2x) = cos²(x) -sin²(x)
cos²(x) +sin²(x) = 1
cos(x) = 1/sec(x)

<h3>Proof</h3>

Starting with the left side, we can transform it into the right side.

$2\cos(2x)=2(\cos^2(x)-\sin^2(x)) = 2(\cos^2(x)-(1-\cos^2(x)))\\\\=2(2\cos^2(x)-1)=2\left(\dfrac{2}{\sec^2(x)}-\dfrac{\sec^2(x)}{\sec^2(x)}\right)\\\\=\boxed{\dfrac{4-2\sec^2(x)}{\sec^2(x)}}$