![Jefferson09](/avatars/1524.jpg)
Jefferson09
27.03.2020 •
Mathematics
Simplify the expression. cos x cotx + sin x a. 0 b. csc x c.tanx d. sec x
Solved
Show answers
More tips
- S Style and Beauty Don t Sacrifice Your Brows: How to Properly Pluck Stubborn Hairs...
- W Work and Career Secrets of a Super Supervisor: Proper Team Management...
- P Photography and Videography Understanding HDR: How It Works and Why You Need It...
- G Goods and services Which TV is better - LCD or Plasma?...
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
Answers on questions: Mathematics
- M Mathematics If christophe ran 3 miles in half an hour, is average speed was...
- M Mathematics What is the value of x? enter your answer in the box. x =...
- M Mathematics Need with this question the graph on the right is a possible efficient network to the graph on the left. question 4 options: true. all vertices are connected by the least amount...
- M Mathematics Which greek philosopher contributed to five theorems of elementary geometry...
- M Mathematics Write the equation in general form of a line with a slope of 1 and a y-intercept of -1...
- M Mathematics Need ! the following graph is an efficient network? question 2 options: true. this network uses the least amount of edges to connect all vertices. false. this network has a cycle...
- M Mathematics Afitness center charges $3 per visit plus a monthly fee of 30$. how much would it cost in one month if ella has 18 visits...
- M Mathematics Astore bought a tricycle at wholesale i marked it up by thirty three percent two fifteen dollars more they on the wholesale price what was the wholesale price of the tricycle rounded...
- M Mathematics Asap you! name a cycle in the graph below. question 1 options: habc bdfe hdgh fedc...
- M Mathematics Write three and seven eighths as an improper fraction and as a mixed number...
Ответ:
B
Step-by-step explanation:
The trick you need to employ is that when the rock hits the ground, the timer stops. So h must be taken as 0.
0 = - 16t^2 + 255 Set up the equation
- 255 = - 16t^2 Divide by -16
15.9375 = t^2 Switch
t^2 = 15.9375 Take the square root of both sides.
sqrt(t^2) = sqrt(15.9375)
t = 3.992 seconds
The closest answer is B