Ask question

Ask question

All categories

3 years ago

9

Solve the matrix equation X-A=B for X if A= [8, -2, -3, 9, -1, 5] and B= [0, 7, 2 -3, -7, -1]

1 answer:

djverab [1.8K]3 years ago

3 0

If <em>X</em> - <em>A</em> = <em>B</em>, then <em>X</em> = <em>A</em> + <em>B</em>. So

$X = \begin{bmatrix}8&-2\\-3&9\\-1&5\end{bmatrix} + \begin{bmatrix}0&7\\2&-3\\-7&-1\end{bmatrix} \\\\ X = \begin{bmatrix}8+0&-2+7\\-3+2&9-3\\-1-7&5-1\end{bmatrix} \\\\ X = \begin{bmatrix}8&5\\-1&6\\-8&4\end{bmatrix}$

You might be interested in

A newsletter publisher believes that above 41A% of their readers own a personal computer. Is there sufficient evidence at the 0.

klemol [59]

Complete Question

A newsletter publisher believes that above 41% of their readers own a personal computer. Is there sufficient evidence at the 0.10 level to substantiate the publisher's claim?

State the null and alternative hypotheses for the above scenario.

Answer:

The null hypothesis is $H_o : p \le 0.411$

The alternative hypothesis is $H_a : \mu > 0.41$

Step-by-step explanation:

From the question we are told that

The proportion is $p = 0.41$

Generally the null hypothesis is $H_o : p \le 0.411$

The above condition represents the null hypothesis because it contains and equality in its condition

The alternative hypothesis is $H_a : \mu > 0.41$

6 0

3 years ago

You are given the following function: f(x)=5•2x+10 Which statement best describes the graph of the function? A. The y-intercept

melisa1 [442]

It's D. The curve intersects the y-axis at (0,10).

5 0

3 years ago

Read 2 more answers

Dimas is playing a game that uses a number cube. The sides of the cube are labeled from 1 to 6. Dimas wants to roll a 2 or a 3.

torisob [31]

B. 1/3

Hope this helps!

3 0

4 years ago

Daurie rides on her motorcycle for 252 miles on 6 of gas.

anastassius [24]

252 divided by 6 = 42

8 0

4 years ago

Which of these equations are in slope-intercept form?

maxonik [38]

Answer:

y = mx + b

Step-by-step explanation:

6 0

3 years ago