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2 years ago

Which of the following is the best approximation?

Mathematics

1 answer:

Fittoniya [83]2 years ago

8 0

11^2 = 121

sq root 143 rounded to nearest unit is 12

so (3×121)/12 is approx to (3×120)/12 = 30

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What is the measurement of BC to the nearest centimeter?

77julia77 [94]

Answer:

a 8

Step-by-step explanation:

You are given two sides and the included angle. Since you don't have any side and the opposite angle, you must use the law of cosines.

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$a^2 = 5^2 + 11^2 - 2(5)(11)\cos 39^\circ$

$a^2 = 25 + 121 - 110\cos 39^\circ$

$a^2 = 60.51$

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Answer: a = 8 cm

7 0

2 years ago

A foresting service conducted a survey to see if tree farms that planted hardwood trees were more profitable over a 30-year peri

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Answer:

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8 0

2 years ago

What is the equation of the line containing the points (3, 1), (9, 3), and (27, 9)?

lutik1710 [3]

From the given points that are (3,1),(9,3),(27,9), we can say that x is three times of y. That is

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$\frac{x}{3} = \frac{3y}{3}$

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7 0

3 years ago

Gregory was 62.45 in. tall in February. He was 67.25 in. tall in August. If h represents the number of inches Gregory grew, whic

Monica [59]

D. 62.45h = 67.25
that is the answer

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2 years ago

Read 2 more answers

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marshall27 [118]

Answer:

True

Step-by-step explanation:

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