Saturday
July 26, 2014

Posts by marcy


Total # Posts: 14

Math
Jessica has 9 more nickels than dimes, and the total value of her coins is 1.50. How many nickels does she have. Write the best equation.

physics
the field just outside a 20 cm-radius metal ball is 5x10^(2) N/C outwards. a) what is the flux through the surface of the ball? b) what is the net charge enclosed inside the ball?

algebra
if i had 100 dimes and quarters and the total value was $14.05, how many quarters would i have?

chemistry
A buffer is made by dissolving H3PO4 and NaH2PO4 in water. a. write an equation that shows how this buffer neutralizes a small amount of acids. b. write an equation that shows how this buffer neutr?

pre calc
find the exact values of the six trigonometric functions of theta if the terminal side of theta in standard position contains the given point: 1. (8, 4) 2. (4, 4√3) 3. (0, -4) 4. (6, 2)

pre calc
find the exact values of the six trigonometric functions of theta if the terminal side of theta in standard position contains the given point: 1. (8, 4) 2. (4, 4√3) 3. (0, -4) 4. (6, 2)

Business Math
Nic has a revolving dept store credit card account with rate 15%annually. Lastmonth balance on the account was $423.78. During the current month, he made purchases totalling $123.42 and made a payment of $100.00. The store uses the unpaid balance method. What must be the amt o...

physics
A person has a mass of 50.0 kg. What is the pressure they exert on the blades of their ice skates if each skate blade is 15.0 cm long and 5.00 mm wide?

math
Thank you for the clarification!

math
log(2.848) = 1.602 * 1.778 Is this a true statement? Why or why not?

Math
How would I solve this Equation? DB = 10log(I/Io) DB = 10log (140 Io/Io) DB = 10 log (140) DB = ????? This is as far I have gotten on this equation. Can someone please help me finish? I am trying to determine how many times louder than the threshold of sound is from 140 Decibels.

8th grade Social Studies
i need help with my homework questions. Can you help me now?

Science
The ancient Greeks discounted Democritus' ideas and blindly followed the belief of the "elements." Which method could they have used to discount their ideas and give credence to Democritus' ideas? A.Scientific Method B.Have any scientific ideas C.Know how to ...

Physics
A 4.5 g bullet is stopped in a block of wood (m= 5.04 kg). The speed of the bullet-plus-wood combination immediately after the collision is 0.298 m/s. What is the original speed of the bullet? Answer in m/s. I did it like this and got it wrong: mv=MV .298= (.0045kg)(velocity) ...

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