Answer:
150
Step-by-step explanation:
Answer:
2/7
Step-by-step explanation:
There are 22 (12 + 10) total students in the class. That means that the chance of the first student picked being a girl is 12/22.
Now, we must calculate the chance of the next student to be picked <em>also </em>being a girl - however, there is a trap here! Remember that since a girl has been picked, the total student pool has decreased to 21 and and the total number of girls has decreased to 11. This means the new chance of girl being picked is 11/21.
To find the probability of both these events happening in conjunction, these fractions must be multiplied. 12/22 * 11/21 = 132/462, which simplifies to 2/7.
The formula for a triangl is one-half base time height ( 1/2 bh).
So for this triangle, input the base and height.
1/2 (10 x10)
The solve
1/2 (100)
50
50 cm²
The angle (2y - 5)° and 95° are vertical angles, then they are congruent, that is,
Solving for y:
The angle (3x + 55)° and 85° are vertical angles, then they are congruent, that is,
Solving for x:
Finally, the value of x + y is:
