an art student wants to take a triangle with side lengths of 9,9, and 15 and enlarge it so that the longest side of a new triang
1 answer:
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Answer:
d. 10%
Step-by-step explanation:
1. Information to know
15 cards left in the deck, and 5 are diamond, to find the probability of the next 2 cards being diamond, one has to find the probability of the 1st card as a diamond, and then multiply it by the probability of the 2nd card being a diamond.
Remember, probability is;
2. Find probability 1
favorable out comes; diamond = 5
total outcomes; total cards = 15
probability is;
Simplified;
3. Finding probability 2
If the last card drawn was a diamond then the new numbers will be
favorable outcomes; 4
total outcomes; 14
Probability is;
Simplified;
4. Total probability
Now, one has to multiply the first probability by the second probability to find the probability of the event;
=
= 0.095238
~10%
Answer:
Time taken by A = 16 seconds
Time taken by B = 12 seconds
Step-by-step explanation:
Given:
Two elevator and their respective time to reach certain height.
Here time is function of height.
Time taken by elevator A = 0.8(h)+16
Time taken by elevator B = -0.8(h)+12
We have to find the time taken by the elevator to reach ground level.
Accordingly:
We know that ground level the height will be zero meaning that (h=0).
Plugging the h values in the equation we can find the time taken by both the elevators to reach zero height that is the ground level.
⇒ ⇒
⇒ ⇒
⇒ sec ⇒
sec
So,
Time taken by elevator A and elevator B to reach the ground is 16 seconds and 12 seconds respectively.