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lbvjy [14]
3 years ago
5

Please help me with this probability question.

Mathematics
1 answer:
Vikki [24]3 years ago
6 0

Answer:

1.6 please correct me if im wrong by commenting

Step-by-step explanation:

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1/2 of 1/2 of 56 is A. 26 B. 27 C. 28 D. 29A. 26 B. 27 C. 28 D. 29
Vinil7 [7]
The answer would be C.28
5 0
2 years ago
Which of the following expression expressions is equivalent to cos3x/sinxcosx?
77julia77 [94]
Correct Option:
Option B

Solution:
The given expression is:

\frac{cos(3x)}{sin(x)cos(x)}

cos(3x) can be written as cos(2x +x). Expanding it, we get:

cos(3x) = cos(2x+x) \\  \\ 
cos(3x) =cos(2x)sin(x)-sin(2x)cos(x)

Using this value of cos(3x) in given equation, we get:

\frac{cos(3x)}{sin(x)cos(x)} \\  \\ 
= \frac{cos(2x)sin(x)-sin(2x)cos(x)}{sin(x)cos(x)} \\  \\ 
= \frac{cos(2x)sin(x)}{sin(x)cos(x)}- \frac{sin(2x)cos(x)}{sin(x)cos(x)}  \\  \\ 
= \frac{cos(2x)}{cos(x)} - \frac{sin(2x)}{sin(x)} \\  \\ 
=sec(x)cos(2x)-csc(x)sin(2x)
8 0
3 years ago
Read 2 more answers
Creative Logic: Kevin is hiking on the trail and has to cross a rope bridge. He looks down at the raging river below and is sudd
Mashutka [201]

Answer: 40 times

Step-by-step explanation:

Given: Total planks = 20

By using integers, Steps forward is represented by +5, Steps backward s represented by  -4.

After first set of two steps ( one forward another backward), 5-4 =1 step forward is captured.

For 20 planks , we require 20 such sets, i.e. he will do this 2x 20 times i.e. 40 times.

Hence, he will do this 40 times to reach the other side.

5 0
3 years ago
Of the last 100 customers entering a computer shop, 25 have purchased a computer. If the relative frequency method for computing
Andrej [43]

Answer: 0.25

Step-by-step explanation:

The relative frequency of the customers that buy computers is equal to the number of customers that bought a computer divided the total number of customers that entered the shop.

p = 25/100 = 0.25

If we take this as the probability, then the probability that the next customer that enters the shop buys a computer is 0.25 or 25%

7 0
3 years ago
What is the value of 6 n=2 (n-1)!/2
Nadya [2.5K]
\bold{ANSWER:}
76.5

\bold{EXPLANATIONS:}

6 0
2 years ago
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