All categories

2 years ago

What is the answer to: − 2 − 1 3 . 8 = − 8 − ( 6 + 1 )?

Mathematics

1 answer:

Elza [17]2 years ago

7 0

I’m pretty sure it’s -15 but don’t take my word for it

You might be interested in

Complete the division problem by determining the number that should be placed in the box.

Damm [24]

Answer: 560

Step-by-step explanation:

547

14 | 7658

-7000

________

- 560

___________

- 98

__________

hope that helps i hope it correct and helps :D

8 0

3 years ago

Use matrix addition to solve this equation: B + 15 −7 4 0 1 2 = 1 2 12 4 0 2 b11 = b12 = b13 = b21 = 4 b22 = −1 b23 = 0

Arada [10]

Answer:

$b_{11}=-14,b_{12}=9,b_{13}=8,b_{21}=4,b_{22}=-1,b_{23}=0$

Step-by-step explanation:

The given matrix addition is

$B+\begin{bmatrix}15&-7&4\\ 0&1&2\end{bmatrix}=\begin{bmatrix}1&2&12\\ 4&0&2\end{bmatrix}$

We need to find the elements of matrix B.

Let $B=\begin{bmatrix}b_{11}&b_{12}&b_{13}\\ b_{21}&b_{22}&b_{23}\end{bmatrix}$

Substitute the value of matrix.

$\begin{bmatrix}b_{11}&b_{12}&b_{13}\\ b_{21}&b_{22}&b_{23}\end{bmatrix}+\begin{bmatrix}15&-7&4\\ 0&1&2\end{bmatrix}=\begin{bmatrix}1&2&12\\ 4&0&2\end{bmatrix}$

After addition of two matrix we get

$\begin{bmatrix}b_{11}+15&b_{12}-7&b_{13}+4\\ b_{21}+0&b_{22}+1&b_{23}+2\end{bmatrix}=\begin{bmatrix}1&2&12\\ 4&0&2\end{bmatrix}$

On equating both sides.

$b_{11}+15=1\Rightarrow b_{11}=-14$

$b_{12}-7=2\Rightarrow b_{12}=9$

$b_{13}+4=12\Rightarrow b_{13}=8$

$b_{21}+0=4\Rightarrow b_{21}=4$

$b_{22}+1=0\Rightarrow b_{22}=-1$

$b_{23}+2=2\Rightarrow b_{23}=0$

Therefore, the elements of matrix B are $b_{11}=-14,b_{12}=9,b_{13}=8,b_{21}=4,b_{22}=-1,b_{23}=0$ .

3 0

2 years ago

What is 173.22 divided by 4?

Kisachek [45]

43.305 or in Mixed Number is 43 61/200 or in improper Fraction is 8661/200

3 0

3 years ago

Read 2 more answers

In a candy box, there are 5 times as many candies with nuts as candies without nuts. There are 18 candies in the box. How many c

vazorg [7]

90 because there are 5 time as many candies with nuts as candies without nuts and there is 18 so it will be 18×5=90

8 0

3 years ago

The following relations are written as equations. Which one is NOT a.

julia-pushkina [17]

Answer:

x = 4

Step-by-step explanation:

doesn't pass the vertical line test

8 0

2 years ago

Read 2 more answers