The answer is b, because division checks multiplication.
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Answer:
the answer would be a number line with an open circle on -4, a closed circle on 3, and shading in between.
Step-by-step explanation:
Answer:
Option a
![6A-8B=\left(\begin{array}{ccc}56&50&-14\\-126&92&62\\-78&26&2\end{array}\right)](https://tex.z-dn.net/?f=6A-8B%3D%5Cleft%28%5Cbegin%7Barray%7D%7Bccc%7D56%2650%26-14%5C%5C-126%2692%2662%5C%5C-78%2626%262%5Cend%7Barray%7D%5Cright%29)
Step-by-step explanation:
First multiply matrix A by 6.
Then multiply the matrix B by -8.
When multiplying a matrix by a number x you must multiply each element of the matrix by x.
Then we perform operation 6A
![6\left(\begin{array}{ccc}-4&-1&-9\\-9&6&9\\-1&-1&3\end{array}\right)=\left(\begin{array}{ccc}-24&-6&-54\\-54&36&54\\-6&-6&18\end{array}\right)](https://tex.z-dn.net/?f=6%5Cleft%28%5Cbegin%7Barray%7D%7Bccc%7D-4%26-1%26-9%5C%5C-9%266%269%5C%5C-1%26-1%263%5Cend%7Barray%7D%5Cright%29%3D%5Cleft%28%5Cbegin%7Barray%7D%7Bccc%7D-24%26-6%26-54%5C%5C-54%2636%2654%5C%5C-6%26-6%2618%5Cend%7Barray%7D%5Cright%29)
![-8\left(\begin{array}{ccc}-10&-7&-5\\9&-7&-1\\9&-4&2\end{array}\right)=\left(\begin{array}{ccc}80&56&40\\-72&56&8\\-72&32&-16\end{array}\right)](https://tex.z-dn.net/?f=-8%5Cleft%28%5Cbegin%7Barray%7D%7Bccc%7D-10%26-7%26-5%5C%5C9%26-7%26-1%5C%5C9%26-4%262%5Cend%7Barray%7D%5Cright%29%3D%5Cleft%28%5Cbegin%7Barray%7D%7Bccc%7D80%2656%2640%5C%5C-72%2656%268%5C%5C-72%2632%26-16%5Cend%7Barray%7D%5Cright%29)
Now we add the resulting matrices
![\left(\begin{array}{ccc}-24&-6&-54\\-54&36&54\\-6&-6&18\end{array}\right)+\left(\begin{array}{ccc}80&56&40\\-72&56&8\\-72&32&-16\end{array}\right)=\left(\begin{array}{ccc}56&50&-14\\-126&92&62\\-78&26&2\end{array}\right)](https://tex.z-dn.net/?f=%5Cleft%28%5Cbegin%7Barray%7D%7Bccc%7D-24%26-6%26-54%5C%5C-54%2636%2654%5C%5C-6%26-6%2618%5Cend%7Barray%7D%5Cright%29%2B%5Cleft%28%5Cbegin%7Barray%7D%7Bccc%7D80%2656%2640%5C%5C-72%2656%268%5C%5C-72%2632%26-16%5Cend%7Barray%7D%5Cright%29%3D%5Cleft%28%5Cbegin%7Barray%7D%7Bccc%7D56%2650%26-14%5C%5C-126%2692%2662%5C%5C-78%2626%262%5Cend%7Barray%7D%5Cright%29)
Answer:3/4
Step-by-step explanation:
tan^2+1=sec^2