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jenyasd209 [6]
3 years ago
14

Which number is a rational number?

Mathematics
1 answer:
Nikitich [7]3 years ago
6 0

Answer:sq rt of 49

Step-by-step explanation:

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When multiplying the same number raised to different powers add the powers together.

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Because you are also multiplying a value without a power you need to add 1 to the sum of the powers:

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Answer: 6^11

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Matt is showing his work in simplifying (6.2 − 1.6) − 4.4 + 7.8. Identify any error in his work or reasoning. Step 1: (6.2 − 1.6
Black_prince [1.1K]

Answer:

The correct option is (d)-He wrote commutative instead of associative in Step 2.

Step-by-step explanation:

Commutative property: a+b=b+a

Associative property: (a+b)+c=a+(b+c)

Now consider the provided expression.

(6.2 − 1.6) − 4.4 + 7.8

Step 1

(6.2 − 1.6) − 4.4 + 7.8

Step 2 Use Associative property

6.2 + (−1.6 − 4.4) + 7.8

Step 3: Simplify

6.2 − 6 + 7.8

Step 4: Use commutative property

14 − 6

Step 5: Simplify

14 − 6 = 8

Hence, the wrong step is step 2. He wrote commutative instead of associative in Step 2.

Therefore, the correct option is (d)-He wrote commutative instead of associative in Step 2.

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Y intercept is where our x variable is equal to 0 and where the graph touches the y-axis.

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