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MakcuM [25]
2 years ago
8

the radius of a circular Frisbee is 9.8 cm. Using rounding to the nearest whole number, what is an estimate for the circumferenc

e of this circle?
Mathematics
2 answers:
Kay [80]2 years ago
6 0
Given the radius ( r ) value of 9.8 cm:

The formula for solving the circumference of a circle is:

C = 2π•r
C = 2π (9.8)
C = 61.575 or 62 cm.

Therefore, the estimate for circumference of the given circle is 62 cm.

Please mark my answers as the Brainliest if you find my explanations/solution helpful :)
dimulka [17.4K]2 years ago
3 0

Answer:

60 cm

Step-by-step explanation:

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A rock is dropped from a bridge 320 feet above the river. The pathway that the rock takes can be modeled by the equation h= -16t
Marina86 [1]

Answer:

The rock will take about 4.5 seconds to reach the river

Step-by-step explanation:

* lets study the situation of the rock

- The rock is dropped means the initial velocity is zero

- The motion is free fall under earth gravity

- The rock dropped from a bridge 320 feet above the river

- The equation of the pathway is h = -16t² + 320

- When the rock reach to the ground the height will be zero

* Now lets substitute h by zero in the equation to find t

∵ h = -16t² + 320

∵ h = 0

∴ 0 = -16t² + 320 ⇒ add 16t² to both sides

∴ 16t² = 320 ⇒ divide both sides by 16

∴ t² = 320/16 = 20

∴ t² = 20 ⇒ take √ for both sides

∴ t = √20 = 2√5 ≅ 4.5 seconds

* The rock will take about 4.5 seconds to reach the river

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3 years ago
Need help plz Compare using <, >, or =.
jek_recluse [69]
Meanings of inequalities :

< less than
> more than
= equal

convert both fractions to their common denominators , which is 40.

7/2/5 = 7/16/40
7/3/8 = 7/15/40

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3 years ago
1)the difference between the upper and the lower quartile is the
nirvana33 [79]
A) interquartile range

The difference between the upper and the lower quartile is a measure of spread known as the interquartile range.
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3 years ago
Help due Monday......
pantera1 [17]

Step-by-step explanation:

<u>5</u><u>)</u><u> </u>2.4×10^-5 / 4.5×10^-11

  • 2.4×10^-5= 0.000024
  • 4.5×10^-11= 0.000000000045

=0.000024/0.000000000045

=24/1 × 1,000,000/45

=24,000,000/45

=533,333.33°

=5.33333°×10^5

**NOT SURE ABOUT THIS QUESTION

<u>6</u><u>)</u><u> </u>(4,-2)

<u>7</u><u>)</u> --------

<u>8</u><u>)</u>

  1. 2x + 3 = 5x - 2

  • 2x - 5x = - 2 - 3
  • -3x = -5
  • x = -5/-3
  • x = 1.66°

  1. 6x + 4 = 6x + 4
  • 6x - 6x = 4 - 4
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  1. 2 (2x + 3) = 8x - 2
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3 years ago
The athletic departments at 10 randomly selected U.S. universities were asked by the Equal Employment Opportunity Commission to
Lesechka [4]

Answer: Mean = 3.5 , median = 2.5, mode = 2, geometric mean = 2.74

Median is the most appropriate measure of central tendency.

The least appropriate = mean

Yes there is an outlier.

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Given responses : 5, 4, 2, 1, 1, 2, 10, 2, 3, 5.

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Mean = (35) ÷ 10

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geometric mean = \sqrt[n]{x_1\times x_2\times.... x_n}

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When outlier is present in data , the median is the most appropriate measure of central tendency.

Mean affected badly by the outlier so it the least appropriate.

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