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nydimaria [60]
4 years ago
12

I NEED HELP ASAP!!!

Mathematics
1 answer:
BlackZzzverrR [31]4 years ago
5 0

Answer:

The number that would go in the blank to get a perfect square trinomial is 18

Step-by-step explanation:

The middle term can always be found by taking twice of the square root of the final term.

2 * √81 = 18

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43×15= what is the correct answer
mario62 [17]
43 × 15 = 645.

First, set up the long multiplication.
Second, calculate 3 × 5, which is 15. Since 15 is two-digit, carry the first digit 1 to the next column.
Third, calculate 4 × 5 which is 20. Since 21 is two-digit, carry the first digit 2 to the next column.
Fourth, bring down the carry digit of 2. 
Fifth, calculate 3 × 1, which is 3.
Sixth, calculate 4 × 1, which is 4.
Seventh, calculate 215 + 430, which is 645.
Eighth, therefore, 43 × 15 = 645.

Or.. an easier way is to use a calculator. They always come in handy when doing multiplication.

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X+1 is the answer for this question
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MrMuchimi

Here's the Answer,

=》sin 45º = cos 45º - <em><u>True</u></em>

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Spencer has 270 marbles. Jake said, “Spencer has 3 times as many marbles as I do!"
irga5000 [103]
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It would be 3 times the amount Jake has to equal 270. So 3x J equals 270
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