Answer:
cos²x
Step-by-step explanation:
(a-b)(a+b)=a²-b²
sin²x+cos²x=1 => cos²x=1-sin²x
(1 − sin x)(1 + sin x)=1-sin²x=cos²x
A. 33/36 or 92% B. 26/36 or 72%
A. List the possibilities that do have a sum of 4. (1,3) (3,1) (2,2). 3/36. subtract 3/36 from the whole to get probability it does not have a sum of 4. 36/36-3/36=33/36 or 92%
B. List the possibilities if is less than or equal to 5 because it will be a smaller amount than if it is greater and subtract like we did in the previous problem. (1,1), (1,2), (1,3), (1,4), (2,1), (2,2), (2,3), (3,1), (3,2), (4,1). 10 total 36/36-10/36= 26/36 or 72%
Answer:
The distance travel by cyclist in 20 seconds is 528 feet .
Step-by-step explanation:
Given as :
The speed of cyclist riding bike = s = 18 miles per hour
Let The distance cover by cyclist in 20 seconds = d feet per sec
<u>Now, According to question</u>
∵ 1 miles = 5280 feet
∴ 18 miles = 5280 × 18 = 95,040 feet
So, The speed of cyclist in feet per hour = 95,040 feet per hour
<u>Again,</u>
∵ 1 hours = 3600 seconds
So, The speed of cyclist in feet per sec = ft/sec
∴ The speed of cyclist in feet per sec = 26.4 feet per second
<u>Again</u>
∵ In 1 sec the distance cover by cyclist = 26.4 feet
∴ In 20 sec the distance cover by cyclist = 26.4 × 20 feet
i.e In 20 sec the distance cover by cyclist = 528 feet
Hence, The distance travel by cyclist in 20 seconds is 528 feet . Answer
It is either A or B
Because it was right for her to multiply the first one by 100 and the second one by 10 but I am not sure when she dived it it would be right