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3 years ago

8

A black line is shorter than a white line.the white line is shorter than a gray line. Is the black line longer or shorter than t

he gray line

2 answers:

vichka [17]3 years ago

6 0

The gray line is longer since the white is bigger than the black and smaller that the gray

Serga [27]3 years ago

4 0

Black is shorter than grey

Hope this helps

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NEED ASAP plz. I will also mark brainiest! Don't just take points, I will report you.

PilotLPTM [1.2K]

Part A:

You may choose the two lines connecting the origin and points A and B, and choose the portion of the space between them.

The line between the origin and A is

$y = 3x$

We want everything below this line (line included), so the first inequality is

$y \leq 3x$

The line between the origin and B is

$y = \dfrac{1}{3}x$

We want everything above this line (line included), so the second inequality is

$y \geq \dfrac{1}{3}x$

Create a system with these two inequalities and you'll have an area including only points A and B

Part B:

To verify the solutions, we can plug the coordinates of A and B in this system and check that we get something true: the coordinates of point A are (1,3), while the coordinates of point B are (3,1). The system becomes:

$A:\begin{cases}3 \leq 3\cdot 1\\3 \geq \frac{1}{3}\cdot 1\end{cases},\quad B:\begin{cases}1 \leq 3\cdot 3\\1 \geq \frac{1}{3}\cdot 3\end{cases}$

Which means

$A:\begin{cases}3 \leq 3\\3 \geq \frac{1}{3}\end{cases},\quad B:\begin{cases}1 \leq 9\\1 \geq 1\end{cases}$

And these are all true. So, the system is satisfied, which means that the points belong to the shaded area.

Part C

If you draw the line, you'll see that the only points that lay below the line are B and C. In fact, if we plug the coordinates we have

$B:\ 1$

And this are both true. You can check the coordinates of all other points, and see that they won't satisfy the inequality y<3x-6

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2 years ago

(Branliest!) Edith uses the greatest common factor and the distributive property to rewrite this sum: 32 + 24 Which expression d

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Answer:

A. 2(16+12)

Step-by-step explanation:

1. 2x16=32

2. 2x12=24

3. 32+24=56

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Tuesday, Wednesday, monday

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A sphere has a radius of 6 meters. A second sphere has a radius of 3 meters. What is the difference of the volumes of the sphere

cricket20 [7]

∆volume = 4/3 *pi * (R^3 -r^3 )
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USING YOUR MATH

Eddi Din [679]

Answer:

$area = \pi {r}^{2} \\ = \frac{22}{7} ( { \frac{22}{2} )}^{2} \\ = 380 \: sq \: feet$

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