Answer:
there is a 3/4 chance that they pass will be completed, 3/4=75%.
Step-by-step explanation:
Thats all I got, I hope this may help tho! :)
Number 2 is 700+.15x <=750
number 3 is [(87 + 85 +81 +90+78+x)/6]>=85
Steps to solve:
f(x) = |x| + 1; x = -3
~Substitute
f(-3) = |-3| + 1
<em>When you take the absolute value of a number it changes it to a positive number regarding it sign.</em>
~Take the absolute value of -3
f(-3) = 3 + 1
~Simplify
f(-3) = 4
Best of Luck!
Answer:
Probability of being senior: P(A) = 0.22
Probability of being female: P(B) = 0.46
=> P(A) x P(B) = 0.22 x 0.46 = 0.10
Otherwise, probability of being senior and female: P(A⋂B) = 0.12
=> P(A) x P(B) is not equal to P(A⋂B)
=> A and B are not independent
Hope this helps!
:)
<u>Chord of Contact:-</u>
- The chord joining the points of contact of two tangents drawn from an external point to a parabola is known as the chord of contact of tangents drawn from external point.
Equation of the normal chord at any point (at², 2at) of the parabola y² = 4ax is
y + tx = 2at + at³ ....(i)
Look at the attached figure
But if M (x₁, y₁) be it's middle point its equation must be also,
T = S₁
:⟹ yy₁ - 2a (x + x₁) = y₁² - 4ax₁
:⟹ yy₁ - 2ax = y₁² - 2ax₁ .....(ii)
Therefore, from eqs. (i) and (ii) are identical, comparing, them