3 years ago

What is the simplified equation of y=sin(90-x)-sin(x-90)?????please explain why.

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

5 0

Answer is in the attachment below.

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Find a solution to the system. Make sure to write as a coordinate.

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Answer:

x=2, y=3

Step-by-step explanation:

This is a system of equations.

To solve a system of equations, we use the substitution method.

We can plug in the first equation, $x=2y-4$ , into the value for x in the second equation. Now, the second equation looks like this:

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We simplify and solve for y:

→ $4y-8+y=7$

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→ $y=3$

Now, we plug in the value for y, which is 3, into either equation. I will just use the first equation:

→ $x=2*3-4$

→ $x = 2$

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Which is the best estimate for the average rate of change for the quadratic function graph on the interval 0 ≤ x ≤ 4?

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Answer:

The best estimate for the average rate of change is $-2$

Step-by-step explanation:

we know that

the average rate of change using the graph is equal to

$\frac{f(b)-f(a)}{b-a}$

In this problem we have

$f(a)=f(0)=0$

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$a=0$

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Substitute

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