Answer:
y=92
z=57
TWO METHODS:
1) z=180-31-92 (small triangle)
2) z=180-60-63 (big triangle)
Step-by-step explanation:
63+29+x=180
x=180-92
x=88
y=180-88
y=92
z=180-31-92
z=57
Step-by-step explanation:
<u>5 teachers for every 115 students </u>
- 1 teacher for every 115/5 = 23 students
<u>3 tutors for every 27 students</u>
- 1 tutor for every 27/3 = 9 students
<u>If there are 90 students, then number of tutors:</u>
The probability of a screen being damaged is:
P(d)=3/13=0.23
Thus to get the probability that the first 10 sold were undamaged we use the binomial distribution formula:
P(x)=n!/((n-x)!x!)p^x(1-p)^(n-x)
from the question:
n=13, x=10, p=0.23
hence
P(x)=13!/((13-10)!10!)*0.23^(13-10)*(1-0.23)^(10)
simplifying the above we get:
P(x)=0.255
Answer:
The answer is 2.625
Step-by-step explanation:
3.5×2.5=8.75
8.75×0.3=2.625
It’s D because all vertical lines have a slope that is undefined.
