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Olenka [21]
3 years ago
11

HELP HELP HELP AND EXPLAIN ANSWERS PLEASE. I U PUT A LINK UR GONNA GET REPORTED

Mathematics
1 answer:
expeople1 [14]3 years ago
5 0

9514 1404 393

Answer:

  2)  (b) -7

  3)  (b) 14

Step-by-step explanation:

2) The sum is found by adding the numbers together. Your calculator can help if you can't do it in your head. I usually find it easier to add the positive and negative numbers separately. Of course the 0 can be ignored.

  18 + 0 -4 -12 +6 -15 = (18 +6) -(4 +12 +15) = 24 -31 = -7

__

3) Apparently, we are to assume that George's percentage will apply to the next 40 pitches. Then ...

  (number missed)/(number thrown) = 35%

  missed = (thrown)×0.35 = 40×0.35 = 14

George is expected to miss 14 of the 40 pitches.

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3 years ago
Evaluate the determinant for the following 1 4 4]<br> 5 2 2<br> 1 5 5
Travka [436]

The determinant of given matrix is zero

Step-by-step explanation:

Given matrix is:

\left[\begin{array}{ccc}1&4&4\\5&2&2\\1&5&5\end{array}\right]

The determinant of a 3x3 matrix is calculated by selecting a single row.

We are choosing the first row.

So,

= 1\left|\begin{array}{ccc}2&2\\5&5\\\end{array}\right|-4\left|\begin{array}{ccc}5&2\\1&5\\\end{array}\right|+4\left|\begin{array}{ccc}5&2\\1&5\\\end{array}\right|\\=1(10-10) -4(25-2)+4(25-2)\\=0-4(23)+4(23)\\=-92+92\\=0

The determinant of given matrix is zero

Keywords: Matrices, determinant

Learn more about matrices at:

  • brainly.com/question/9720317
  • brainly.com/question/9621364

#LearnwithBrainly

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Which of the following statements are true about the slope of a line? Choose all that apply.
sasho [114]
1,2,3,6 are the correct answers.
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