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3 years ago

For a class experiment, Sally's class weighed a log before and after

1 answer:

3 0

Answer:

Jack Barlow

Step-by-step explanation:

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Zigmanuir [339]

Answer:

Step-by-step explanation:

$(3+\sqrt{7})(3-\sqrt{7}) \\$

First do 3 x 3 = 9 - keep this 9 to the side for now

Then do 3 x $-\sqrt{7}$ = $-\sqrt{21}$ - also keep this to the side for now

Then do $\sqrt{7}$ x 3 = $\sqrt{21}$

Then do $-\sqrt{7}$ x $\sqrt{7}$ = -7

So,

9 $-\sqrt{21}$ + $\sqrt{21}$ - 7

Therefore, 9-7 = 2

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3 years ago

nekit [7.7K]

I believe the commutative property on multiplication

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3 years ago

son4ous [18]

Round the 1 to the nearest number on the number line.

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pentagon [3]

Count that your answer SIKE

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3 years ago

natali 33 [55]

Answer:

The answer is C 18

Step-by-step explanation:

4^2+8/4= 16+2=18

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4 years ago