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2 years ago

Which ordered pair can be removed so that the resulting graph represents a function?

Mathematics

1 answer:

Sunny_sXe [5.5K]2 years ago

6 0

Answer:

(1, 3)

Step-by-step explanation:

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The mass of 5 m' of copper is 44 800 kg. Work out<br> the density of copper.

solniwko [45]

Here bro this should help

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3 years ago

Which of the following inequality should be graphed with a dashed line? Select all that apply.

AURORKA [14]

Answer:

B, D

Step-by-step explanation:

Any inequality that does not include the "or equal to" case will be graphed with a dashed line.

<h3>Application</h3>

The "or equal to" case is included when the inequality symbol is one of ≤ or ≥. When symbols > or < are used, the boundary line of the solution space is dashed (or the end point on the number line is an open circle).

The inequalities that will be graphed with a dashed line are ...

2x -4y < 12 . . . . choice B
x +7 > -1 . . . . . . .choice D

7 0

2 years ago

Look at the image. (calculus)

mash [69]

<h3>Answer: Choice H) 2</h3>

=============================================

Explanation:

Recall that the pythagorean trig identity is $\sin^2 x + \cos^2x = 1$

If we were to isolate sine, then,

$\sin^2 x + \cos^2x = 1\\\\\sin^2 x = 1-\cos^2x\\\\\sin x = \sqrt{1-\cos^2x}\\\\$

We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.

Through similar calculations, $\cos x = \sqrt{1-\sin^2x}\\\\$

Cosine is also positive in this quadrant.

-------------

So,

$\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}\\\\\frac{\sin x}{\sin x}+\frac{\cos x}{\cos x}\\\\1+1\\\\2$

Therefore,

$\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}=2$

is an identity as long as 0 < x < pi/2

5 0

2 years ago

Read 2 more answers

help please asap I will give brainliest I just need C. The formula for the area of a triangle is A=1/2 bh. what is the length(i

Reptile [31]

I think the answer is 3. Hopes this helps!

4 0

3 years ago

Use the drawing tools to form the correct answers on the grid.

igor_vitrenko [27]

Answer:

The function $f(x)= \frac{1}{x^2+2}$ is continuous for all real numbers

Step-by-step explanation:

To know the possible points of discontinuity of this function, we must find out when the denominator of the function is equal to 0.

The denominator is:

$x ^ 2 + 2$

Then we equal 0 and clear x

$x ^ 2 +2 = 0\\\\x ^ 2 = -2$

$x ^ 2> 0$ for any real number.

This means that

$x ^ 2 +2> 0$ <em>for all reals numbers</em>.

Therefore, the function $f(x)= \frac{1}{x^2+2}$ is <em>continuous</em> for all real numbers, that is, it does not have discontinuities.

The graphic of this function is shown in the image

4 0

3 years ago