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Fiesta28 [93]
3 years ago
8

Khan Academy’s question

Mathematics
1 answer:
prisoha [69]3 years ago
6 0

Answer:

Black Screen so sorry

Step-by-step explanation:

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A triangle is placed in a semicircle with a radius of 5 yd, as shown below. Find the area of the shaded region.
Svetradugi [14.3K]

Answer:

  14.25 yd^2

Step-by-step explanation:

The triangle area is given by the formula ...

  A = 1/2bh

Here, the base is 10 yd, and the height is 5 yd, so ...

  triangle area = (1/2)(10 yd)(5 yd) = (5 yd)^2 = 25 yd^2

__

The semicircle is half the area of a circle with radius 5 yd, so its area is ...

  semicircle area = (1/2)π(5 yd)^2 = 12.5π yd^2 ≈ 39.25 yd^2

__

The shaded region is the difference between these areas:

  shaded area = 39.25 yd^2 -25 yd^2 = 14.25 yd^2

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3 years ago
Draw the image of the figure after a rotation of 180° around 0. Can anyone help?
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Https://us-static.z-dn.net/files/d32/38c3ab868a9002a8c0889292f96a8840.jpeg

6 0
3 years ago
A group of friends is going to a baseball game. A general admission ticket to the game costs $9.00. A ticket for a fan club memb
AnnyKZ [126]

Answer:

See explanation!

Step-by-step explanation:

The term 9x is comprised of two values: 9 and x. The 9 represents the cost of the general admission tickets. Since the expression is representing the total cost for the group of friends, the number of friends attending must be represented somehow in the equation. Since the $9 is paired with the x, this means that x represents how many of the friends are paying the general admission price. After interpreting both values within the term, the meaning of the term 9x is simply just the total cost of the friends that are paying the general admission price! Hope this helps!

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X=1 so it is 1×1×1=1 so.... it is 19+1
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