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Anna007 [38]
3 years ago
14

Determine if line AB is tangent to the circle. If so, then explain why.

Mathematics
1 answer:
marissa [1.9K]3 years ago
5 0

Answer:

Step-by-step explanation:

if a line AB is tangent to the circle with centre O then radius OA ⊥AB and AB touches it at exactly one point.

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Fine the product mentally. [(x+1) (x-1)^2
Murljashka [212]
If the product is: [(x+1) (x-1)]^2 , the answer is:
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5 0
3 years ago
Read 2 more answers
Please give the right answer and show work if possible
balandron [24]

Answer:

B

Step-by-step explanation:

Sin 64=23/a. Let use trig identities to find other points

First, since sin and cos like are complementary angles we can use this formula

\sin(x)  =  \cos(y)  \:  \:  \: x + y = 90

sin 64=23/a

64 + x = 90

x = 26

So cos 26=sin 64 so B is a answer

3 0
2 years ago
What is the surface area of a sphere whose volume is 28811 ins , n
Lina20 [59]
Volume=(4/3)pir^3
volume=288pi
288pi=(4/3)pir^3
divid eobht sides by pi
288=(4/3)r^3
multiply both sides by 3/4 to clear fraction (4/3 times 3/4=12/12=1)
216=r^3
cube root both sides
6=r

surface area=4pir^2
surface area=4pi6^2
surface area=4pi36
surface area=144pi in^2
8 0
3 years ago
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