Kerrie T.

It costs 7.57 plus 8.77 per kilowatt hour for the first 400 and 6.574 per kilowatt usage over 400 in a month. What is the cost of 300 in a month? 2638.57 how much for 700 in one month? 5487.77... more

8x2+2x-3=0  i am supposed to get two binomials that are equal to zero. ex. (        )(       )=0

write an equation for the line that is perpendicular to the given line and that passes through the given point      Y=-1/3x+2;  (4,2)

i do not understand this topic and i need help

I am 13 and i am trying to help my friend out with her math because she is teaching me art.

Pulling a Crate A worker drags a crate across a factory floor by pulling on a rope tied to the crate (Fig. 6-60). The worker exerts a force of 450 N on the rope, which is inclined at 38° to the... more

Three objects are connected by light strings as shown in Figure P4.62. The string connecting the m1 = 5.50 kg mass and the m2 = 4.20 kg mass passes over a light frictionless pulley. Figure P4.62... more

3x3 systems of equations

With a distribution of 10 scores, nine of them are 3, 5, 9, 1, 9, 2, 0, 3, and 9. The last one is greater than 5 but it is not 9.  Is it possible to determine the mean of the distribution?

a manhole cover ha diameter of 3 ft. What is the length of the brass grip-strip that encircles the cover ,making it easier to manage?