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3 years ago

The blue segment below is a diameter of O. What is the length of the radius of the circle?

Mathematics

2 answers:

nexus9112 [7]3 years ago

8 0

Answer: Option D :3.85 units.

Step-by-step explanation: Diameter is the longest chord of any circle . It is a straight line passing through the center of the circle and touches the circle at two points. Radius is a line drawn from the center of circle to the circumference. Radius is half of diameter.In the given figure the blue line is diameter .The diameter is the blue line which equals 7.7 units.Radius is half of diameter .Radius = 7.7÷2=3.85 units.

Option D is the right answer.

Sergeeva-Olga [200]3 years ago

5 0

It is D. Just divide the diamiter by 2

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GaryK [48]

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3 years ago

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Use the Venn diagram to calculate probabilities. Circles A and B overlap. Circle A contains 15, circle B contains 10, and the in

grin007 [14]

Answer:

$(B) P(B)=\dfrac{16}{31}$

Step-by-step explanation:

From the Venn diagram, n(AUB)=31

The given probabilities in the option are calculated below:

$P(A)=\dfrac{21}{31}\\\\P(B)=\dfrac{16}{31}\\\\P(A|B)=\dfrac{P(A\cap B)}{P(B)}= \dfrac{6/31}{16/31} =\dfrac{6}{16}=\dfrac{3}{8} \\\\P(B|A)=\dfrac{P(B\cap A)}{P(A)}= \dfrac{6/31}{21/31} =\dfrac{6}{21}=\dfrac{3}{7}$

The only correct option is the probability of B which is $\frac{16}{31}$

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3 years ago

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adelina 88 [10]

Answer:

875

Step-by-step explanation:

20x5=100

10x30=300

15x30=450

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nalin [4]

Answer:

Step-by-step explanation:

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2 years ago

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PLEASE HELP ME I CANT FAIL

insens350 [35]

The correct answer is C

Explain

The graph is given

F(x) is given -2^x

By putting x= - 3 in the first equation
G(x) = -9

Which is false

by putting x= -3 in the second equation

g(x) is also equal -9

Which is false

Hope this help you :D

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3 years ago