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N76 [4]
4 years ago
15

Please help me!

Mathematics
1 answer:
OLEGan [10]4 years ago
7 0
You need to find 7 1/2% of $29.95.
To do that, just multiply the percent by the number.

7 1/2% * $29.95 =

= 7.5% * $29.95

= 0.075 * $29.95

= $2.24625

The answer is $2.25
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3 years ago
LK is tangent to circle J at point K. Circle J is shown. Line segment J K is a radius. Line segment K L is a tangent that inters
Evgen [1.6K]

Answer:

(B)r=\dfrac{85}{12}

Step-by-step explanation:

Given a circle centre J

Let the radius of the circle =r

LK is tangent to circle J at point K

From the diagram attached

  • LX=6
  • Radius, XJ=JK=r
  • LK=11

Theorem: The angle between a tangent and a radius is 90 degrees.

By the theorem above, Triangle JLK forms a right triangle with LJ as the hypotenuse.

Using Pythagoras Theorem:

(6+r)^2=r^2+11^2\\(6+r)(6+r)=r^2+121\\36+6r+6r+r^2=r^2+121\\12r=121-36\\12r=85\\r=\dfrac{85}{12}

The length of the radius, r=\dfrac{85}{12}

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4 years ago
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