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Sauron [17]
3 years ago
14

Một xe máy khởi hành a đến b cách nhau 160 km sau 1 giờ ô tô đi từ b đến a hai xe gặp nhau tại c cách b 72 km biết vận tốc ô tô

hơn vận tốc xe máy là 20 km. Tính vận tốc mỗi xe
Mathematics
1 answer:
Alja [10]3 years ago
5 0

Answer:

74

Step-by-step explanation:

well, you see, потому что я плохая сука-ниггер, да бруддахол лмао

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What is the approximate area of the shaded portion of the diagram? (Use 3.14 as an estimate for pi.)
Nadusha1986 [10]

Answer:

218

Step-by-step explanation:

first find the area of the circle-

A=\pi r^{2} \\A=\pi 10^{2} \\A=100\pi \\A=314

to find the area of the triangle, we need the base and the height. The base we know is 16, since we don't know the height yet, use the Pythagorean theorem to find the height. One leg is 16 the hypotenuse is 20 (2* the radius).

a^{2} +b^{2} =c^{2} \\a^{2} +16^{2} =20^{2} \\a^{2} +256=400\\a^{2} =144\\a=12

Now I know the height is 12. Find the area of the triangle

A=\frac{1}{2} bh\\A=\frac{1}{2} (16)(20)\\A=96

subtract the area of the triangle from the area of the circle

314-96=218

6 0
3 years ago
Someone please helpp meeee w this like i don’t understand
MrMuchimi

Answer:

C

Step-by-step explanation:

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3 0
2 years ago
A gift box has the shape of a cube with an edge length of 4.5 in.
BlackZzzverrR [31]
91.125 all you need to do is cube 4.5 or multiply 4.5 by itself 3 times so 4.5x4.5x4.5
8 0
3 years ago
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Step-by-step explanation:

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6 0
3 years ago
25m/s to miles/h <br>Can anyone solve it?<br>With explanation if you can
Dimas [21]

25 meters per second x 60 seconds = 1500 meters per minute

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6 0
3 years ago
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