Answer:
if xy=yz I think this is isosceles triangle so angles are the same
180-40=140
140÷2=70
this is 70
) <span>This is an example of scaling up by a scale factor of 3. The ratio 2 : 3 is the same as the ratio of 6 : 15.</span>
Answer:
14x^2 -4x+17
Step-by-step explanation:
10x^2 + 3x + 9 - ( -4x^2+7x-8) =
10x^2 + 3x + 9 +4x^2 -7x +8 add the 'like' terms
= 14x^2 -4x + 17
The probability is 0.006, or 0.6%.
This is binomial; there are a fixed number of trials (10), the events are independent (the chances of one occurring do not affect the chances of the other occurring), and there are two outcomes (either right or wrong).
He must get 6 of the 10 questions correct, so k is 6 and n is 10. The probability of getting a question correct is 1/5=0.2; the probability of getting a question incorrect is 4/5=0.8.