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3 years ago

What is the answer for 7(-5+m)

Mathematics

2 answers:

White raven [17]3 years ago

8 0

7−35

hope this helps:)

Fed [463]3 years ago

3 0

Answer:

-35+7m

Step-by-step explanation:

This is the answer because:

Using the distributive property, you will distribute the 7 to -5 and m. The variable m basically is one so 7 times m is 7m and -5 times 7 is -35 bc negative times a positive is always negative.

Therefore after distribution:

you final answer will be: -35+ 7m

Hope this helps

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Let O=number of oranges and A=number of apples.

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Step-by-step explanation:

I assume you mean $f(x) = 3(x-1)^2-4$

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3 years ago

Find -7a-6B (Picture provided)

sertanlavr [38]

Answer:

Option c

$-7A-6B=\left(\begin{array}{ccc}40&-106&-32\\-46&43&25\\82&-62&-18\end{array}\right)$

Step-by-step explanation:

First multiply matrix A by -7.

Then multiply the matrix B by -6.

When multiplying a matrix by a number x you must multiply each element of the matrix by x.

Then we perform operation -7A

$-7\left(\begin{array}{ccc}-10&10&8\\-2&-1&5\\-4&8&-6\end{array}\right)=\left(\begin{array}{ccc}70&-70&-56\\14&7&-35\\28&-56&42\end{array}\right)$

Now we perform operation -6B

$-6\left(\begin{array}{ccc}5&6&-4\\10&-6&-10\\-9&1&10\end{array}\right)=\left(\begin{array}{ccc}-30&-36&24\\-60&36&60\\54&-6&-60\end{array}\right)$

Now we add the resulting matrices

$\left(\begin{array}{ccc}70&-70&-56\\14&7&-35\\28&-56&42\end{array}\right)+\left(\begin{array}{ccc}-30&-36&24\\-60&36&60\\54&-6&-60\end{array}\right)=\left(\begin{array}{ccc}40&-106&-32\\-46&43&25\\82&-62&-18\end{array}\right)$

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