So we are to merge the two equations into one, since both of the equations are equal to y. a = b, b = c therefore, a = c.
We are to isolate x.
![x[tan(72)-tan(55)]=2.2tan(55)](https://tex.z-dn.net/?f=x%5Btan%2872%29-tan%2855%29%5D%3D2.2tan%2855%29)
The value of x is approximately, 1.9047m
Then, substitute the value of x from
y = 5.862m
Round up, then the answer would be D.
Ans：60degree （A）
as they are opposite to each other
Probability of winning a grand prize is 1/10
Probability of winning a basic prize is 11/20
What is the probability of two independent events?
If A and B are two independent events, then P(A and B) = P(A) * P(B).
If Events A and B are independent, the probability that either Event A or Event B occurs is: P(A or B) = P(A) + P(B) - P(A and B).
Solution:
P(A) = no. of A / total possibility
= 4/10
P(B) = no. of 1's/total possibility
= 3/12
= 1/4
Now,
To win a grand prize you need an "A" and "1" .
∴ P(A and B) = P(A) × P(B)
= 4/10 × 1/4
P(A and B) = 1/10
Now ,
To win a basic prize you need to spin an "A" or a "1"
∴ P(A or B) = P(A) + P(B) - P(A and B)
= 4/10 + 1/4 - 1/10
= 3/10 + 1/4
∴ P(A or B)= 11/20
To learn more about probability of independent events click on the link below:
brainly.com/question/16157262
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F'(x)= 4 (2x+3)^3 times 2 = 8 (2x+3)^3 .
