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fgiga [73]
3 years ago
11

I need help please!!

Mathematics
2 answers:
mars1129 [50]3 years ago
8 0

To solve for the area, you cannot solve for just half, so you first have to solve the whole entire area. A = πr².

π5² = 78.5

So, 78.5 is the answer to the circle area.

But half the circle is dividing the whole area by half.

78.5/2=39.25

So 39.25m² is the answer.

Artyom0805 [142]3 years ago
7 0

Answer:

39.27

Step-by-step explanation:

Calculate whole area of circle - pi5^2 = 78.54

Divide answer by 2 as only half of the circle is shaded - 78.54/2 = 39.27

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Answer:

62.5 mph

Step-by-step explanation:

Given that :

Peter :

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Start Time = 9 a. M

Emily :

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In other to catch up at 11:30 :

Peter (11:30 - 9:00) = 2hours 30 minutes = 2.5 hrs

Total distance moved by Peter :

Speed * time = 50 * 2.5 = 125miles

For Emily to cover 125 miles in (11:30 - 9:30) = 2 hours

Speed = distance / time

Speed = 125 miles / 2 hours

Speed = 62.5 miles per hour

7 0
2 years ago
I need some help with this two.
andrey2020 [161]

Answer: a = 2168 miles

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Use one method to find the LCM of the first set of numbers below. Use the other method to find the LCM of the second set. Show W
Nat2105 [25]

Answer:

The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.

Step-by-step explanation:

The LCM of 13 AND 17 is 221

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4 0
3 years ago
The lengths of the sides of the triangle are 3, 8, and 10. Is the triangle a right triangle, acute triangle, or an obtuse triang
weqwewe [10]

Answer:

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Step-by-step explanation:

  1. You have to make sure it is a triangle by adding the smallest and the medium sides, if the result is greater than the bigger side then it is a triangle.
  2. you then use the Pythagorean theorem to check if the triangle is a right triangle, acute, or obtuse. If c^{2} = a^{2} +b^{2} then it is a right triangle. If c^{2} >a^{2} + b^{2} then it is an obtuse triangle. if c^{2} < a^{2} +b^{2} then it is an acute triangle.
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in this case c^{2} is greater than a^{2} +b^{2} therefore, is it an obtuse triangle.

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3 years ago
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