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makvit [3.9K]
3 years ago
14

A circle's circumference is approximately 88 cm. Estimate the diameter, rounding to the nearest WHOLE number. (don't forget your

units and use 3.14 if you need to use )
Mathematics
2 answers:
brilliants [131]3 years ago
8 0

Answer:

  • 28 cm

Step-by-step explanation:

<u>Circumference formula:</u>

  • C = πd

<u>Substitute values of circumference and the π to find the diameter:</u>

  • d = C/π
  • d = 88/3.14 = 28 cm (rounded)
Snezhnost [94]3 years ago
3 0

Answer:

diameter = 28 cm

Step-by-step explanation:

circumference = 2πr

88 cm = 2 * 3.14.*r. ( π = 3.14 )

r = ( 88)/(3.14*2)

r = 14 cm

diameter = 2 * radius

diameter = 2 * 14 cm

diameter = 28 cm

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A rectangular soccer field is 80 meters wide and 110 meters long. The coach asks players to run from one corner of the field to
seraphim [82]

Answer:

Step-by-step explanation:

Goven the length of the field = 110m

Width = 80m

The length of the diagonal is expressed using the pythagoras theorem;

d² = l² + w²

d² = 110² + 80²

d² = 12100 + 6400

d² = 18500

d = √18500

d = 136.01

Hence the players have to run 136.01m diagonally

7 0
3 years ago
A 17 metre tall tree casts a shadow that is 20 metres long. What angle, to the nearest degree, does the sun make with the ground
svlad2 [7]

Answer:

About 32º

Step-by-step explanation:

since 17 m is one leg, and 20m is the hypotenuse, we can write:

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4 0
4 years ago
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When simplified (v2 – y + 1) + (4y2 – 3y - 2) is:
olchik [2.2K]

Answer:

  D.  5y^2 - 4y - 1

Step-by-step explanation:

Combine like terms:

  (y^2 -y +1) +(4y^2 -3y -2)

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8 0
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What is volume? Give an example of an object that has volume
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3 years ago
Adding fractions 1/6+2/3=
mars1129 [50]

Answer:

\frac{5}{6}

\frac{1}{6} + \frac{2}{3} is equivalent to \frac{1}{6} + \frac{4}{6}.

This is because \frac{2}{3}=\frac{4}{6}

The rule is, in order to add fractions, your denominators must be equivalent. In other words, you must have the same denominator for both fractions.

<em>Now what do we do? We add!</em>

\frac{1}{6} + \frac{4}{6} =\frac{5}{6}

This is because 4 + 1 = 5.

Your answer is \frac{5}{6}.

I hope this helps!

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>
8 0
3 years ago
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