Answer: p=0.25s
Step-by-step explanation: I am taking the test to
Answer:
Step-by-step explanation:
For the probability of events not mutually exclusive we have to add the probability of each event and substract the probability of the intersection of the events:
For the given information we can deduce the following probabilities:
<probability of the union of A_1 and A_2>
<probability of the union of A_1 and A_3>
<probability of the union of A_2 and A_3>
We can also use the given information to get the probability of the union of . For that purpose we use the next formula:
So we the given information:
Answer:
a- (x-7)(x+9) | b- 193*207 | c- 242*258
Step-by-step explanation:
a)
x^2+2x-63.
the middle number is <em>2 </em>and the last number is <em>-63</em>.
You would have 2 numbers that add to 2 and multiply to -63.
Those numbers are -7 and 9.
so (x-7)(x+9).
b)
((200)-7)((200)+9)
(193)(209).
You can check this by multiplying 193 by 209 and then doing (200)^2+2(200)-63. Both would equal 40337.
c)
2(x-7)+2(x+9)=1000
(2x-14)+(2x+18)=1000
4x+4=1000
4x=996
x=249.
((249)-7)((249)+9)
(242)(258)
X=12. So this one says that it has 3 congruent sides so therefore it has to have 3 congruent angles. Here we have angle 2 and we have angle 60. Given the definition of triangle congruence, we can say that 60 is angle 2 and that the third angle is also 60 but it’s not relevant in this problem. So knowing that angle 2 is 4x+12 we solve for x by seeding that equal to 60 and then solving for x we get x=12. Hope this helps!!!!