Use the definition of conditional probability to find the "and" probability:
Use the inclusion/exclusion principle to find the "or" probability:
We have already seen how to approximate a function using its tangent line. This was the key idea in Euler’s
method. If we know the function value at some point (say f (a)) and the value of the derivative at the same
point (f
(a)) we can use these to find the tangent line, and then use the tangent line to approximate f (x)
for other points x. Of course, this approximation will only be good when x is relatively near a. The tangent
line approximation of f (x) for x near a is called the first degree Taylor Polynomial of f (x) and is:
f (x) ≈ f (a) + f
(a)(x − a)
Solve using equations:
Gina 11 = a+b+c
Sam 27 = 2a+3b+2c
Robby 19= a+2b+2c
Gina *2 give 22=2a+2b+2c (subtract this from Sam to give)
b=5
the subtract Robby from Gina *2 to give a=3
[Question 1]
let d = number of dramas Gina rented, c = # of comedies, and t = # of documentaries:
[equation a] d + c + t = 11
[equation b] 2d + 3c + 2t = 27
[equation c] d + 2c + 2t = 19
if we subtract [a] from [c] we get:
[equation d] c + t = 8
if we subtract [c]*2 from [b] we get:
[equation e] -c - 2t = -11 or
[equation e] c + 2t = 11
Now we can subtract [e] from [d] to solve for t:
t = 3
Now put in 3 for t in [d] or [e] to solve for c:
c + 2(3) = 11
c + 6 = 11
c = 5
So she rented 5 comedies and 3 documentaries which leaves 3 dramas (which is answer A)
Answer: this is so zenskinsta can have brainliest
Step-by-step explanation:
Answer:
This shape is a rectangle so that means that the angles are 90°. From sum of angles of a triangle, x + 3x + 10 + 90 = 180 which means 4x + 100 = 180 → 4x = 80 → x = 20°.
