Answer:
A.
Step-by-step explanation:
The third angle is 180 - 2*55 = 70 degrees.
So with 2 sides and 2 angles equal it is an acute isosceles triangle.
Answer:
0.0256
Step-by-step explanation:
Assuming a binomial model, with probability of success (getting a red marble) p = 0.20. The probability of obtaining 'k' successes in 'n' trials is:

For k = 3 red marbles in n = 4 trials:

The probability that the child gets exactly three red marbles is 0.0256.
the answer is 48÷2 (9+3) = 288
Answer:
65%
Step-by-step explanation: