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VikaD [51]
3 years ago
11

Work out the area of this semi circle Take pi to be 3.142 and write down all the digits given by your calculator

Mathematics
1 answer:
Liula [17]3 years ago
5 0

Answer:

628.4cm²

Step-by-step explanation:

Find the diagram attached

Area of the semi circle = πr²/2

r is the radius = 10cm

Area of the semi circle = π(10)²/2

Area of the semi circle = 3.142(100)/2

Area of the semi circle = 314.2×2cm²

Area of the semi circle =628.4cm²

Hence the area of the semicircle is 628.4cm²

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38 4/7% as a fraction
Lelu [443]
38 4/7 = 270/7

% (percent) means per hundred (1/100)

so, (270/7)% is same thing as 270/700 or 27/70.

Answer: 270/100 or 27/70
3 0
3 years ago
PLEASE HELP THIS IS IMPORTANT DONT TROLL ME PLZ
MrRa [10]

Answer:

5 meters

Step-by-step explanation:

So Zane starts at -25 meters, then, after 35 seconds, he makes it to the top. The questions is asking how high he climbed every 7 seconds. As we know, 7x5 is equal to 35. this means that we can divide 35 and 25 by 5 to get the answer. 25/5 is equal to 5, so that means he climbed 5 meters every 7 seconds. I hope this helps!

8 0
3 years ago
Read 2 more answers
I NEED HELP FAST! Find the measure of the missing angles.
loris [4]

Angle G = 130 degrees

Angle H = 50 degrees

Angle K = 74 degrees

Angle M = 106 degrees

<u>Angle G would be 130 degrees</u> because it's a vertical angle, and vertical angles are always alike.

<u>Angle H would be 50 degrees</u> because it's an adjacent angle, and we also know that one side of the line is always 180 degrees so we have an equation that looks like this 180 - 130 = 50 degrees

<u>Angle K would be 74 degrees</u> because it's a vertical angle.

<u>Angle M would be 106 degrees</u> because it's an adjacent angle.

7 0
3 years ago
If a soccer team made 24 penalty shot out of 100 what fraction and what percentage of penalty shots did the team miss?
saul85 [17]
76/100 or 76% of the shots
8 0
4 years ago
In parallelogram ABCD , BE=7x−2 and ED=x2−10 .
Stells [14]

I'm assuming that the diagonals intersect at E. Since diagonals of a parallelogram bisect each other, BE=ED.

  • 7x-2=x²-10
  • x²-7x-8=0
  • (x-8)(x+1)=0
  • x = -1, 8

As distance must be positive, we reject the negative case, so x=8.

Thus, BE=ED=54.

5 0
2 years ago
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