Wednesday
December 4, 2013

# Posts by Leah

Total # Posts: 326

Math
You want to estimate the mean amount spent by customers at a local gas station with 98% confidence and a margin of error of no more than \$2. Preliminary data suggests that the standard dev. is \$5.1 is a reasonable estimate for the standard dev. for all customers. How large a s...

Thank you so much-that's what I was doing wrong

Could someone remind me how to calculate this on the TI-84 Calculator: Which buttons do I hit for this: 3 * 10^8/5.4 * 10^14 I'm inputting it and coming up with 5.55 E 21 It should come out to be 5.55 *10^-7 but I'm not doing the input correct Please help

Physics nd the TI84 Calculator
Could someone remind me how to calculate this on the TI-84 Calculator: Which buttons do I hit for this: 3 * 10^8/5.4 * 10^14 I'm inputting it and coming up with 5.55 E 21 It should come out to be 5.55 *10^-7 but I'm not doing the input correct Please help

Physics help on the TI-84 calculator
Could someone remind me how to calculate this on the TI-84 Calculator: Which buttons do I hit for this: 3 * 10^8/5.4 * 10^14 I'm inputting it and coming up with 5.55 E 21 It should come out to be 5.55 *10^-7 but I'm not doing the input correct Please help

Physics
Gind the force between charges of +10.o uC and -50.0 uC located 20.0 cm apart

math
how many times must the number 5 be subtracted to find the quotient of 5/5?