Total number of students who did a test was 24
Number of students who scored an A is 14
Number of students who scored a B is 10
Probability that when we randomly select a student, he/she will have an A is:
(Number of students that scored A)/(Total number of students)
=14/24
=7/12
Therefore our answer is 7/12
Answer:
simple interest
Step-by-step explanation:
this is because r is interest rate, p is principal, and t is time
YZ = 16. The triangles are congruent. This would be AAS so YZ = 16 because of CPCTC.
If you expand out the brackets you get this,
(4+5i)(a+2i) = 4a + (5a)i + 8i - 10
The -10 comes from 5i * 2i.
Squaring i becomes -1.
Let's group the real stuff together,
and imaginary separately,
(4a - 10) + (5a + 8)i
For this to be purely imaginary,
the real part needs to be zero.
Therefore 4a - 10 = 0
Solve for a.
the first two professors did not know if everyone wanted coffee because the third professor had to choose yes or no if he wanted coffee. the first two professors were waiting for the third to say something, and when he said no, they knew he did not want coffee. if one of the first two professors said no, the answer would be no.
.What value of c would make the equation a perfect square trinomial? Part B: Rewrite the equation in the form 
. Part C: Solve the Quadratic equation to find the positive solution for x. x =___. Part D: Solve the Quadratic equation to find the negative solution for x. x =___.