2 years ago

Activity 1: Performance task continued

Mathematics

1 answer:

ANTONII [103]2 years ago

6 0

Answer:

Um wat?

Step-by-step explanation:

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20 / 4 is the correct answer.

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What is the solution to the inequality below x2>25

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Answer:

Ans: (-5, 5)

-5 < x < 5

Step-by-step explanation:

Standard form: f(x) = x^2 - 25 < 0.

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Answer by open interval: (-5, 5)

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2 years ago

Which operation can be used with the augmented matrix below?

ycow [4]

Answer:

Multiply row 2 by-1 and add it to row 3.

Step-by-step explanation:

The given augmented matrix is $\left[\begin{array}{ccc}3&-21&15\\15&8&15\\-2&-1&3\end{array}\right]$

The permissible row operations are:

1. Switching rows

2. Multiplying a row by a nonzero constant.

3. Adding/Subtracting two rows

Therefore the correct option is: Multiply row 2 by-1 and add it to row 3.

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3 years ago

Which is expression. Is equivalent to 6-(-8)

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Answer:

Expression: 6 + 8

Solved: 14

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