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3 years ago

What does | | around a number mean? ex: |3|

1 answer:

7 0

That symbol means the absolute value so say those brackets around the number -4 so the absolute value is 4 of -4.

~Good Luck!~

You might be interested in

Can you simplify before multiplying 14 x 25/27? Respond with /yes or no/. 10 points!!

ELEN [110]

Answer:

Step-by-step explanation:

because 25 cannot go in 27

3 0

4 years ago

Read 2 more answers

Find the solution of the given initial value problem. ty' + 2y = sin t, y π 2 = 1, t > 0

vitfil [10]

Consider this solution (see the attachment, 5 steps).

8 0

3 years ago

Which function has a greater slope and y-intercept than the linear function represented in the table?

Sav [38]

Answer:

B) y=3x+7.5

Step-by-step explanation:

The equation of the data in the table can be obtained by using any two points.

We will use points (3, 13) and (5,17)

The slope - intercept form is:

y = mx + b

We find the slope as:

m = (17-13)/(5-3) = 4/2 = 2

The equation becomes:

y = 2x + b

To find the value of b, the y -intercept is:

13 = 2*3 + b ⇒ b= 13 - 6 = 7

So the equation is:

y = 2x + 7

<h3>Now let's compare this with the options</h3>

A) y = 2x + 8.5

The slope is 2, and y- intercept is 8.5
It has same slope and greater y-intercept
Answer is no

B) y=3x+7.5

The slope is 3, and y- intercept is 7.5
It has greater slope and greater y-intercept
Answer is yes

C) y=5x+6.5

The slope is 5, and y- intercept is 7.5
It has greater slope but smaller y-intercept
Answer is no

D) y=10x+5.5

The slope is 10, and y- intercept is 5.5
It has greater slope but smaller y-intercept
Answer is no

5 0

4 years ago

Please explain this question in some simple language. no spam answers please.

Kisachek [45]

Answer:

Below.

Step-by-step explanation:

I can't see the words on your image very well but I can give you an explanation of the remainder theorem.

The theorem allows you to find the remainder of a division without doing the division itself.

You can find the remainder when a polynomial is divided by a linear expression like 3x - 2, for example, using this theorem.

An example will explain the method:

What is the remainder when x^3 - x^2 - 2x - 5 is divided by 2x - 1?

Put 2x - 1 = 0, this gives x = 0.5.

Now we plug x = 0.5 into the polynomial:

This = (0.5)^3 - (0.5)^2 -2(0.5) - 5 = -6.125

So the remainder is -6.125.

The formal definition is

The remainder when P(x) is divided by x - a is f(a).

6 0

3 years ago

The graph of y=f(x) is shown below. Graph y=1/2f(x)

san4es73 [151]

Answer:

The answer figure is attached in this answer.

Step-by-step explanation:

The graph shows that $y$ always has positive value whether $x$ is positive or negative. Following observations can be drawn from the question figure.

When $x$ is 0, $y$ is also 0.
When $x$ is 1, $y$ is 2.
when $x$ is 2, $y$ is 4.
when $x$ is -1, $y$ is 2.
when $x$ is -2, $y$ is 4.

It means $f(x)$ is a function of modulus function (| $x$ |).

Let us provide definition of modulus function $g(x)$ :

$g(x) = |x|=\left \{ {{x, \ if\ x \geq0 } \atop {-x,\ if \ x < 0}} \right.$

As we can observe that $y$ is twice of | $x$ |, so the graph given in the question figure represents

$y= f(x) = 2|x| \{ {-2\leq x}\leq 2 \}$

So, we have to draw the graph of $y = \dfrac {1}{2} f(x)$

i.e. $y = |x| \{-2\leq x \leq 2 \}$

Please refer to the attached figure for the graph of $y = \dfrac {1}{2} f(x)$

4 0

4 years ago