The answer to that would be B
13+13 (because there are two sides of one triangle that both equal 13) then with that answer multiply by 10 (because 10 is the base) and that is the area of one triangle, then multiply the area of one triangle by 2 (because there’s two triangles)
Hi, it will be really easy if you start out by plotting a tree diagram and tracing out the probabilities. Then you simply have to multiply the probabilities of placebo and improvement.
-----80% Medication -----76% improvement
-----24% no improvement
|
------20%Placebo --------62% no improvement
-----------38% improvement
Solving for P(placebo and improvement) = .20 x .38 = 0.076 = 7.6%
Answer: the solutions are
x = 3 or x = - 11
Step-by-step explanation:
The given quadratic equation is expressed as
y = 2x² + 16x - 66 = 0
The equation is already in the standard form of ax² + bx + c
The general formula for solving quadratic equations is expressed as
x = [- b ± √(b² - 4ac)]/2a
From the equation given,
a = 2
b = 16
c = - 66
Therefore,
x = [- 16 ± √(16² - 4 × 2 × - 66)]/2 × 2
x = [- 16 ± √(256 + 528)]/4
x = [- 16 ± √784]/4
x = (- 16 + 28)/4 or x = (- 16 - 28)/4
x = 12/4 or x = - 44/4
x = 3 or x = - 11
1. Cost = room rental + transportation
Let units of cost be "dollars" and let "n" represent the number of people going on the field trip.
.. cost = 637 +18n
.. revenue = 105 +25n
2. You want to find "n" so that revenue matches cost.
.. revenue = cost
.. 105 +25n = 637 +18n
.. 7n = 532
.. n = 76
76 people need to make the trip to break even