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olga nikolaevna [1]
3 years ago
15

Explain? estimate and then record the product?

Mathematics
1 answer:
dexar [7]3 years ago
5 0
So the esimate is 70×7 and that is 490 so thatbis your esimate.Then you multiply 78×7. wich is 546 and thats your answer
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The area of a rectangle is 34in² the length is 13 less than 2 times the width
Alborosie

Answer:

  width:  8.5

  length:  4

Step-by-step explanation:

width:  x

length:  2x - 13

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34 = 2x² - 13x

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8 0
3 years ago
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viktelen [127]

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The fourth choice

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Step-by-step explanation:

Complementary angles add up to 90°

Supplementary angles add up to 180°

*a trick to remember this is to know that C is before S in the alphabet, and 90 is before 180, so Complementary is 90 and Supplementary is 180

Step 1:  Find the complementary angle

  Take 90° and subtract the give angle to find the angle you would need...

       90° - 65.8° = 24.2°

Step 1:  Find the supplementary angle

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3 0
4 years ago
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