Its simply 87 + 30, which equals 117.
Answer: 5/6, 0.83333333
Step-by-step explanation:
A table will have a length and width, so the area will be just that, the product of those two factors, so in short, simply factor the area of x²+7x-30.
now, if we do a "prime factoring" of 30, we get 2*3*5, and we can mix them as 2*5 and 3, to get the factors of (x² + 10)(x²-3).
Step-by-step explanation:
a. P(mites OR ticks) = P(mites) + P(ticks) − P(mites AND ticks)
P(mites OR ticks) = 0.80 + 0.30 − 0.20
P(mites OR ticks) = 0.90
b. P(no ticks | mites) = P(no ticks AND mites) / P(mites)
P(no ticks | mites) = (0.80 − 0.20) / 0.80
P(no ticks | mites) = 0.75
c. If two events are independent, then P(A and B) = P(A) × P(B).
P(mites AND ticks) = 0.20
P(mites) × P(ticks) = 0.80 × 0.30 = 0.24
They are not independent.
Hi there!
An easy strategy to compare fractions is to get a common denominator in both. In this case we could come up with the common denominator of 24 by multiplying 2/6 * 4 and 5/8 * 3.
2/6 * 4 and 5/8 * 3 <--- Equation.
8/24 and 15/24 <--- Simplified from step 1.
And now it's easy to compare!