All categories

3 years ago

Determine the value of the following if it is possible. If it is not possible, explain.

Mathematics

1 answer:

evablogger [386]3 years ago

4 0

Answer:

The answer to your question is the letter C

Step-by-step explanation:

Data

When we multiply a scalar by a matrix, we must multiply the scalar by each of the numbers of the matrix and the result of the multiplication stays in the same place.

For this problem:

3 | -2 0 | = | (-2 x 3) (0 x 3) |

| 4 -7 | | (4 x 3) (-7 x 3) |

= | -6 0 |

| 12 -21 |

You might be interested in

The equation

anyanavicka [17]

Answer:

Either A or C I think, Good luck!!!

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Lin runs 5 laps around a track in 8 minutes.

andrezito [222]

Answer:

To run one lap Lin takes 1.6 minutes.

Step-by-step explanation:

To find this answer you would do 8 divided by 5. Always remember when dividing time goes first unless the instructions / directions / your teacher says differently. So, when you do 8 divided by 5 the answer you get is 1.6, and there is your answer. Also to check your answer you can do 1.6 times 5, and you get 8, so you know that 1.6 is the correct answer.

5 0

2 years ago

Javiver has $15 to spend On action figures.If it’s bigger cost two dollars what is the greatest number of action figures he can

FinnZ [79.3K]

7.

15/2= 7.5
you cant get 7 and a half action figures so round down to 7

5 0

2 years ago

The vertex of this parabola is at (-4, -1). When the y-value is 0, the x-value is 2. What is the coefficient of the squared term

satela [25.4K]

$\bf \qquad \textit{parabola vertex form}\\\\
\begin{array}{llll}
\boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}
\end{array} \qquad\qquad vertex\ ({{ h}},{{ k}})\\\\
-------------------------------\\\\
y=a(x-(-4))^2-1\implies y=a(x+4)^2-1
\\\\\\
\textit{now, we also know that }
\begin{cases}
y=0\\
x=2
\end{cases}\implies \underline{0}=a(\underline{2}+4)^2-1$

solve for "a"

5 0

2 years ago

Help I don’t know the answer

Over [174]

Answer:

x-intercept is (3.6,0)

y-intercept is (0,-2)

Step-by-step explanation:

Given the linear graph: -5x + 9y = -18

X-intercept is when y=0;

-5x + 0 = -18

-5x = -18

x = 18/5 = 3.6

The x-intercept therefore is (3.6,0)

Y-intercept is when x = 0;

0 + 9y = -18

9y = -18

y = -18/9 = -2

Therefore y-intercept is (0,-2)

7 0

3 years ago