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3 years ago

A spinner is divided into five colored sections that are not of equal size: red, blue,

Mathematics

1 answer:

coldgirl [10]3 years ago

6 0

It would land on blue about 115 times. The spinner lands on blue roughly 23% of the time, and 115 is 23% of 500.

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Fine -4A+6B (Picture provided)

Ratling [72]

Answer:

Option a

$-4A+6B=\left(\begin{array}{ccc}-22&30&32\\-16&-78&48\\42&24&30\end{array}\right)$

Step-by-step explanation:

First multiply matrix A by -4.

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 -4A

$-4\left(\begin{array}{ccc}-2&6&1\\1&9&-6\\-9&9&-9\end{array}\right)=\left(\begin{array}{ccc}8&-24&-4\\-4&-36&24\\36&-36&36\end{array}\right)$

Now we perform operation 6B

$6\left(\begin{array}{ccc}-5&9&6\\-2&-7&4\\1&10&-1\end{array}\right)=\left(\begin{array}{ccc}-30&54&36\\-12&-42&24\\6&60&-6\end{array}\right)$

Now we add the resulting matrices

$\left(\begin{array}{ccc}8&-24&-4\\-4&-36&24\\36&-36&36\end{array}\right)+\left(\begin{array}{ccc}-30&54&36\\-12&-42&24\\6&60&-6\end{array}\right)=\left(\begin{array}{ccc}-22&30&32\\-16&-78&48\\42&24&30\end{array}\right)$

6 0

4 years ago

The area of a rectangular wall of a barn is 90 square feet. It’s length is 8 feet longer than twice it’s width. Find the length

vlada-n [284]

Answer: The answer is that the length is square ft, and the width is .

Step-by-step explanation:

5 0

3 years ago

Simplify. Remember to write the powers as a positive number.

larisa86 [58]

1. 1/a^8 (Sorry I can't find out what the others are)

5 0

3 years ago

What is 4/5 - 2/3?<br> Someone please answer.<br> I have to write up to 20 characters so yh.

disa [49]

Change 4/5 - 2/3 so that the denominator is th same. Let’s try 15.
So, 12/15 - 10/15.
Then, subtract to get 2/15.

Hope it helped :)

8 0

3 years ago

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PLEASE HELP ME ASAP!!!!!

yanalaym [24]

Answer:

it is used to subtract 10 from both sides

7 0

3 years ago

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