Reza
This page lists questions and answers that were posted by visitors named Reza.
Questions
The following questions were asked by visitors named Reza.
Find any critical numbers of the function. (Enter your answers as a comma-separated list.) g(x) = x^7 − 7x^5 Honestly, I have no idea how to find the critical number!
13 years ago
What is the speed of the wave represented by y(x, t) = A sin(kx − ωt),where k = 7.0 rad/cm and ω = 3.6 rad/s? answer should be in cm/s I tried to subtract 7-3.6= 3.4 which is wrong and I also divided 7/3.6=1.94 , but that is wrong too. I don't know how to...
13 years ago
The height of a ball thrown straight up into the air as a function of time is given as h(t) = 1 + 15t Ð 4.9t^2. At what time does the ball hit the ground?
10 years ago
Given a 10 cm by 20 cm piece of paper, if you cut out four equal squares from the corners and fold up the resulting sides you will create an open box. Write an expression for the volume of this box in terms of the side length of each cut‐out square, x.
10 years ago
at what time does this equation reaches 10000? show steps. thanks w(t)=(t-10)(t-20)+4500
10 years ago
1a). If you react 16 mol A with 15 mol B in the reaction 4A + 3B → 2C, what is the limiting reactant? 1b). What is the theoretical yield of product C in mol? 3a.) If Pb(NO3)2 were the limiting reactant in this reaction: Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) +...
7 years ago
Answers
The following answers were posted by visitors named Reza.
Thank you I really appreciate your help :)
13 years ago
Would this help these two points were given on the graph illustrated with this question (-7,0) & (1,0) thnks for the help
13 years ago
Thank you! I got the other parts, but I still cant get part b. Isn't it sqrt(26/1.5) and the answer multiplied by 2 to get tension, but its giving me wrong. I don't know why!
13 years ago
Thanks Reiny
10 years ago
B) step 1: substitute points to write to linear equations y= ax^2+bx+c the three points are (0,10000) (3,7595) (6,6400) 7595= a3^2+b x3+10000 7595=9a+3b+10000 -10000 -10000 -2405=9a+3b Equation (1) 6400=a(6^2)+6 xb+10000 6400=36a+6b+10000 -10000 -10000 -3...
10 years ago
sorry I have messed up with the second point value hahahhaha the equation will change to 25x^2-750x+10000 just follow the above steps and u will get the right answer sorry
10 years ago
Sorry the equation is wrong it should be W(t)=5 (t-10(t-20)+4500
10 years ago
A= P(1+r/n)^n*t for instance A=10000(1+0.05/1)^1*10 A= 10000(1.05)^10 a= 10000(1.628895) A= 16288.95
10 years ago
Thanks Reiny :D
10 years ago