Select the property of equality used to arrive at the conclusion.
2 answers:
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Answer:
x = 5.85
Step-by-step explanation:
Given that,
One angle = 26°
Middle angle = 90°
Third angle = 180-(90+26) = 64°
Height, H = 12
We need to find the value of x. Using trigonometry to find it such that,
So, the value of x is equal to 5.85.
The usual rectangular to polar substitutions can be used:
x = r·cos(θ)
y = r·sin(θ)
These give
r² = 10c·r·cos(θ)
or
r = 10c·cos(θ)
x = r·cos(θ)
y = r·sin(θ)
These give
r² = 10c·r·cos(θ)
or
r = 10c·cos(θ)
Answer: No, A and B are not independent events.
∵ it does not satisfy the rule of probability for independent events i.e.
P(A∩B)=P(A).P(B)
Explanation:
Let A be the event that the black dice shows 2 or 5
Let B be the event that the sum of two dice is atleast 7
Sample space of A={(
}
Sample space of B= { ,
,
}
P(A)=
⇒P(A)=
⇒P(A)=
Similarly,
P(B)=
⇒ P(B) =
Now for Sample Space of (A∩B)= {}
So, P(A∩B)=
Now we apply the formula,
P(A).P(B)=P(A∩B)
×
≠
≠
∴ The events A and B are not independent events.