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n200080 [17]
3 years ago
10

In the figure below, CD bisects

Mathematics
1 answer:
AlladinOne [14]3 years ago
7 0
It’s C’ D’ hope this helps
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If the area of a circle is 16pi what is the circumference of the circle, circle b, if its radius is 1/2 that of the circle a
Natasha2012 [34]
First find the radius of circle A. You know that the equation is r^2*pi, so just divide both by pi.
r^2*pi=16pi
/pi          /pi
r^2=16
R is 4. That means that circle B is 2, since its radius is half that of circle A.
C=pi2r
C=pi2(2)
C=pi4
C=4pi
The answer is 4pi.
5 0
3 years ago
Find the exact value of the following expression (without using a calculator): tan(Sin^-1 x/2)
Sati [7]

Answer:

tan(Sin^-1 x/2)=  \frac{x/2}{\sqrt{1-x^{2}/4 } }

Step-by-step explanation:

Let sin^-1 x/2= θ

then sinθ= x/2

on the basis of unit circle, we have a triangle with hypotenuse of length 1,   one side of length x/2 and opposite angle of θ.

          tan(Sin^-1 x/2) = tanθ

           tanθ= sinθ/cosθ

as per trigonometric identities cosθ= √(1-sin^2θ)

           tanθ= sinθ/ √(1-sin^2θ)

substituting the value sinθ=x/2 in the above equation

             tanθ= \frac{x/2}{\sqrt{1-x^{2}/4 } }

now substituting the value sin^-1 x/2= θ in above equation

             tan(sin^-1 x/2) =  \frac{x/2}{\sqrt{1-x^{2}/4 } }

!

3 0
2 years ago
The lowest common multiple of 10, 15 and p is 150. Find the two possible values of p which are odd numbers.
natka813 [3]

Answer:

p = 3, p = 5

Step-by-step explanation:

Express 150 as a product of prime factors, that is

150 = 2 × 3 × 5 × 5

Thus 2 odd factors of 150 are 3 and 5

The possible values of p are 3 and 5

7 0
3 years ago
D/4 - 9 = -3 what does d equal?
lubasha [3.4K]
\frac{d}{4} -9=-3

\frac{d}{4}=-3+9 = 6
d=6*4=24
d=24
4 0
3 years ago
What are the slope and the y-intercept of the linear function that is represented by the table? x y –3 18 0 12 3 6 6 0 The slope
OlgaM077 [116]
We look for the linear function of the table:
 y-yo = m (x-xo)
 Where,
 m = (0-12) / (6-0)
 m = (- 12) / (6)
 m = -2
 (xo, yo) = (0, 12)
 Substituting:
 y-12 = -2 (x-0)
 Rewriting:
 y = -2x + 12
 Answer:
 
The slope is -2, and the y-intercept is 12
8 0
3 years ago
Read 2 more answers
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