Answer:b=8
Step-by-step explanation:14-10=4 then you do 4(2)=8
Answer:
decrease income
Step-by-step explanation:
income is already lower than expenses so lowering it further is the worst you can do out of all 4
The <u>correct answer</u> is:
C) Avoid using unsecured wireless networks.
Explanation:
Using an unsecured wireless network puts your information at risk. If you use an open network, that means that absolutely anyone within range can access the same network you are on, which opens you up to potential scammers, phishers, etc.
On the other hand, using a secured network decreases the number of people on the same network as you, since they will have to have the same password to access the network. This helps prevent your information from falling into the wrong hands.
This is a binomial distribution problem. The formula to find the required probability is:
p(X) = [ n! / ((n - X)! · X!) ] · (p)ˣ <span>· (q)ⁿ⁻ˣ
where:
X = number of what you are trying to find the probability for = 20 or 21;
n = number of events randomly selected = 21;
p = probabiity of sucess = 0.9 (90%);
q = probability of failure = 0.1 (10%);
We need to find the probability of two events: finding 20 students and finding 21 students. Therefore P(X) = P(X = 20) + P(X = 21).
P(X = 20) = </span> [ 21! / ((21 - 20)! · 20!) ] · (0.9)²⁰ <span>· (0.1)²¹⁻²⁰
= 0.2553
P(X = 21) = [ 21! / ((21 - 21)! </span>· 21!) ] · (0.9)²¹ <span>· (0.1)²¹⁻²¹
= 0.1094
Therefore:
P(X) = 0.2553 + 0.1094 = 0.3647
We have a probability of 36.5% to find 20 or more students </span><span>who consider calculus to be an exciting subject.</span>
Ok, this is a ratio problem; the ratio of the length to width is constant (and therefore equal): 4 /6 = 15 / x Now, with a ratio, we may do any allowable algebra operation: cross-multiply, invert both sides, multiply or divide both sides by the same amount, etc. Let's cross-multiply: 4x = (15)(6) x = 90/4<span> x = 22.5 in. </span>