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ira [324]
3 years ago
14

IM TOO LAZY TO DO WORK WILL MARK BRAINLIEST LOL

Mathematics
2 answers:
zaharov [31]3 years ago
8 0

Answer:

18: x=98 y=38

19: x=20 y=50

Step-by-step explanation:

To figure out figure 18 you would first figure out x and a triangle equals 180 so 180- (36+46) which is 180-82= 98 and then there are vertical angles between the right and left side so x is equal to one of the angles on the right so 98+44= 142 and 180-142= 38

Then to figure out figure 19 you would first find y by adding 39 and 91 to get 130 and 180-130=50 and then 180-91 (for the angle in the bottom right for the left triangle) is 89 so 89+71=160 and 180-160 is 20.

brilliants [131]3 years ago
7 0

Answer:

figure1.

x=98

y=38

fig2.

x=20

y=50

Step-by-step explanation:

fig 1

46+36+x=180(sum of all side)

x=98

the opposite angle of x Is also 98 being (V.O.A)

98+44+y=180

y=38

fig2

x+71=91(sum of 2 opposite interior angle is equals the exterior angle)

x=20

39+91+y=180(sum of angles of triangle)

y=50

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Answer:

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Step-by-step explanation:

The probability, in this case, has to be calculated using the sum rule because the events are independent. 

P = P(men) + P(non-fiction) - P(men non-fiction); where P is the probability. It means the probability that the random book was written by a man plus the probability that the random book was non-fiction minus the probability that the random book was written by a man who writes non-fiction. The probability that the random book was written by a man who writes non-fiction has to be subtracted, if not you will be duplicating it. 

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P(men) = 60% = 99/165

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P(men non-fiction) = 40/165

P = P(men) + P(non-fiction) – P(men non-fiction)

P = 99/165 + 66/165 – 40/165

P = 125/165

P = 0.758 or 75.8%

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Answer:

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Step-by-step explanation:

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