Answer:
d= 90 degrees
e= 99 degrees
f= 81 degrees
Step-by-step explanation:
To find d, you know that the other side is equal to 90. Because two sides that are opposite of each other must be equal to 180, you do 180-90 which is 90 to get d. Therefore, d=90 degrees. 99 degrees and e are alternate interior angles so that means they have to be the same. Because f is on the other side of 99 degrees and two sides that are opposite of each other must equal 180 degrees, you have to do 180-99 which is equal to 81 degrees. Therefore, d=90 degrees, e=99 degrees, and f=81 degrees
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Answer:
The answer to your question is: 128 days
Step-by-step explanation:
Data
original mass = 21 g
after 45 days = 17.3 g
Process
mass transform = 21 - 17.3 = 3.7 g
21 g ----------------------- 100 %
3.7 g --------------------- x
x = (3.7 x 100) / 21
x = 17.61 %
17.61 % ------------------- 45 days
50% -------------------- x
x = (50 x 45) / 17.61
x = 127.8 ≈ = 128 days
The answer is C because its the only one that makes sense when you see what the question is asking you
Answer:
x =3 sqrt(3)
Step-by-step explanation:
cos theta = adj/ hyp
cos 60 = x/ 6 sqrt(3)
Multiply each side by 6 sqrt(3)
6 sqrt(3) cos 60 = x/6 sqrt(3)/ 6 sqrt(3)
x =cos 60 * 6 sqrt(3)
x =3 sqrt(3)
Answer: c) 0.75
Step-by-step explanation:
Given : The probability of choosing a black marble is P(Black)= 0.36.
The probability of choosing a black and then a white marble is P( Black and white) = 0.27.
Then by conditional probability ,
The probability of the second marble being white if the first marble chosen is black = 
Therefore , the probability of the second marble being white if the first marble chosen is black = 0.75
