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3 years ago

Choose the correct description of the graph of the compound inequality: (5 points)

Mathematics

1 answer:

skad [1K]3 years ago

4 0

Answer:

Step-by-step explanation:

Firstly,

≤ or ≥ means closed circle, and

< or > means open circle

Now, let's solve the compound inequality:

x - 1 ≤ 7

x ≤ 8

and

2x ≥ 22

x ≥ 11

This solution means "everything left of 8 (inclusive and closed circle)" and "everything right of 11 (inclusive and closed circle)"

Looking at the choices, D is right.

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Find the area of the trapezoid. Leave your answer in simplest radical form.

murzikaleks [220]

Answer:

The formula to find the area of a trapezoid is

A = (;a + b / 2 ) h

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3 years ago

What is the volume of a rectangular prism with a length of 1. 4 meters, a width of 0. 5 meter, and a height of 1. 8 meters? 7. 5

mihalych1998 [28]

The volume of the rectangular prism will be $V=1.26m^{3}$

<h3>What will be the volume of the rectangular prism ?</h3>

Given that

$\rm Lenth \ of \ the \ rectangular \ prism =1.4\ m$

$\rm width\ of \ prism=0.5\ m$

$\rm Height \ of \ prism=1.8\ m$

$\rm Volume \ of \ the \ Rectangular \ Prism= L\times W\times H$

$V=1.4\times 0.5\times1.8=1.26 \ m^{3}$

Thus the volume of the rectangular prism will be $V=1.26m^{3}$

To know more about the volume of the rectangular prism follow

brainly.com/question/24284033

6 0

2 years ago

mario62 [17]

Answer:

y-intercept= -4

slope= -2

6 0

2 years ago

Read 2 more answers

If a = {6 6 4 7 -4 4 -6 9 -3} and B= {1 5 -8 9 -5 -8 9 -5 2}, find 3a +9B Matrix operations

V125BC [204]

Answer:

$3A+9B=\begin{bmatrix} 27 & 63 & -60 \\\\ 102 & -57 & -60\\\\ 63 & -18 & 9 \end{bmatrix}$

Step-by-step explanation

$A=\begin{bmatrix} 6 & 6 & 4\\\\7 & -4 & 4\\\\ -6 & 9 & -3\end{bmatrix}\: and \: B=\begin{bmatrix}1 & 5 & -8\\\\ 9 & -5 & -8\\\\ 9 & -5 & 2\end{bmatrix}$

$\rightarrow 3A=3\begin{bmatrix} 6 & 6 & 4\\\\7 & -4 & 4\\\\ -6 & 9 & -3\end{bmatrix},\: \: 9B =9\begin{bmatrix}1 & 5 & -8\\\\ 9 & -5 & -8\\\\ 9 & -5 & 2\end{bmatrix}$

$\rightarrow 3A=\begin{bmatrix} 3*6 & 3*6 & 3*4\\\\3*7 & 3(-4) & 3*4\\\\ 3(-6) & 3*9 & 3(-3)\end{bmatrix},\:\: 9B =\begin{bmatrix}9*1 &9* 5 &9( -8)\\\\ 9*9 & 9(-5) & 9(-8)\\\\ 9*9 & 9(-5) & 9*2\end{bmatrix}$

$\rightarrow 3A=\begin{bmatrix} 18 & 18 & 12 \\\\ 21 & -12 & 12\\\\ -18 & 27 & -9\end{bmatrix},\:\: 9B =\begin{bmatrix} 9 & 45 & -72 \\\\ 81 & -45 & -72\\\\ 81 & -45 & 18\end{bmatrix}$

$\rightarrow 3A+9B=\begin{bmatrix}18+9 & 18+45 & 12+(-72) \\\\ 21+81 & -12 +(-45) & 12+(-72)\\\\ -18+81 & 27+(-45) & -9+18 \end{bmatrix}$

$\rightarrow 3A+9B=\begin{bmatrix} 18+9 & 18+45 & 12-72 \\\\ 21+81 & -12 -45 & 12-72\\\\ -18+81 & 27-45 & -9+18 \end{bmatrix}$

$\rightarrow \purple{\bold{3A+9B=\begin{bmatrix} 27 & 63 & -60 \\\\ 102 & -57 & -60\\\\ 63 & -18 & 9 \end{bmatrix}}}$

6 0

2 years ago

Graph the line with slope 4 and y-intercept -9

Monica [59]

go down to (0, -9) on the graph, from there go up four and over one and plot the next point, up four over one again, and repeat

7 0

3 years ago