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3 years ago

Is this a function or a non function?

Mathematics

1 answer:

ElenaW [278]3 years ago

4 0

Answer:

This is a function

Step-by-step explanation:

If you do the Vertical Line Test you can see that the line passes through only one dot at a time. Therefore it is a function. If the line passed through more than one dot at a time then it wouldn't be a function.

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Write the first four terms of the sequence defined by each of the following recursive formulas.

diamong [38]

A1 = 3 and an = an − 1 − 3
a1 = 2 and an = an − 1 + 0.5

6 0

3 years ago

What are the solution(s) to the quadratic equation 9x2 = 4?

Oksanka [162]

we have

$9x^{2}=4$

Divide both sides by $9$

$9x^{2}/9=4/9$

$x^{2}=4/9$

Square root both sides

$x=(+/-)\sqrt{\frac{4}{9}}$

$x=(+/-)\frac{2}{3}$

the solutions are

$x1=\frac{2}{3}$

$x2=-\frac{2}{3}$

therefore

the answer is the option

x = 2/3 and x = -2/3

8 0

3 years ago

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Write the trigonometric expression in terms of sine and cosine, and then simplify. cot()/sin()-csc()

OLEGan [10]

Answer:

First, we know that:

cot(x) = cos(x)/sin(x)

csc(x) = 1/sin(x)

I can't know for sure what is the exact equation, so I will assume two cases.

The first case is if the equation is:

$\frac{cot(x)}{sin(x)} - csc(x)$

if we replace cot(x) and csc(x) we get:

$\frac{cot(x)}{sin(x)} - csc(x) = \frac{cos(x)}{sin(x)} \frac{1}{sin(x)} - \frac{1}{sin(x)}$

Now let's we can rewrite this as:

$\frac{cos(x)}{sin(x)} \frac{1}{sin(x)} - \frac{1}{sin(x)} =\frac{cos(x)}{sin^2(x)} - \frac{1}{sin(x)}$

$\frac{cos(x)}{sin^2(x)} - \frac{sin(x)}{sin^2(x)} = \frac{cos(x) - sin(x)}{sin^2(x)}$

We can't simplify it more.

Second case:

If the initial equation was

$\frac{cot(x)}{sin(x) - csc(x)}$

Then if we replace cot(x) and csc(x)

$\frac{cos(x)}{sin(x)}*\frac{1}{sin(x) - 1/sin(x)} = \frac{cos(x)}{sin(x)}*\frac{1}{sin^2(x)/sin(x) - 1/sin(x)}$

This is equal to:

$\frac{cos(x)}{sin(x)}*\frac{sin(x)}{sin^2(x) - 1}$

And we know that:

sin^2(x) + cos^2(x) = 1

Then:

sin^2(x) - 1 = -cos^2(x)

So we can replace that in our equation:

$\frac{cos(x)}{sin(x)}*\frac{sin(x)}{sin^2(x) - 1} = \frac{cos(x)}{sin(x)}*\frac{sin(x)}{-cos^2(x)} = -\frac{cos(x)}{cos^2(x)}*\frac{sin(x)}{sin(x)} = - \frac{1}{cos(x)}$

5 0

3 years ago

How do i find the missing length indicated

SCORPION-xisa [38]

Answer:

The Pythagorean theorem states that a2 + b2 = c2 in a right triangle where c is the longest side. You can use this equation to figure out the length of one side if you have the lengths of the other two. The figure shows two right triangles that are each missing one side's measure.

Step-by-step explanation:

<h3>#HOPE IT HELPS</h3><h3>#CARRY ON LEARNING</h3><h3>#CAN I GET BRAINLIESTS ANSWER?</h3>

3 0

3 years ago

.000001 equals 1 x 10-4 Answer a. True b. False

RSB [31]

Im pretty sure the answer is false

5 0

4 years ago

Read 2 more answers

Is this a function or a non function?​

Is this a function or a non function?