Answer:
bc= 6
Step-by-step explanation:
since the triangles are similar, the sides are in a ratio
xz/ac = 20/4 (5:1)
yx/ba = 15/3 (5:1)
yz/bc = 5:1 = 30/6
Answer:
probability that a randomly selected page that contains only text will contain no typos that is
P(x=0) =
= 0.923
Step-by-step explanation:
<u>Poisson distribution</u>:-
Explanation of the Poisson distribution :-
The Poisson distribution can be derived as a limiting case of the binomial
distribution under the conditions that
i) p is very small
ii) n is very large
ii) λ = np (say finite
The probability of 'r' successes = 
Given the average number of typos ∝ = 0.08 per page.
probability that a randomly selected page that contains only text will contain no typos that is = 
After calculation P(x=0) =
= 0.923
probability that a randomly selected page that contains only text will contain no typos =0.923
Answer: so the answer is 2
Step-by-step explanation:
80 x 3
= 240
240 - 242
=2
Answer:
Answer: (‑1)-x/2-21
Step-by-step explanation:
:)
In order to check if the lines are perpendicular, we need to check if their slopes have the following relation (to find the slope we can use the slope-intercept form y = mx + b):

A.
In this option, y = -5 is an horizontal line and x = 2 is a vertical line, therefore they are perpendicular.
B.
First let's find the slope of each line:

These slopes obey the relation stated above, so the lines are perpendicular.
C.

These slopes obey the relation stated above, so the lines are perpendicular.
D.

These slopes obey the relation stated above, so the lines are perpendicular.
E.

These slopes don't obey the relation stated above, so the lines aren't perpendicular.
The correct options are A, B, C and D.