TMSCA 9 Questions

[austorior]

how to calculate acre-feet?

Two ships are 3 mi apart, and traveling in the same direction the same speed with one directly in front of the other. At the same time one turns 24 deg to port and the other turns 24 deg to starboard, how far does the front ship travel before they are 8 mi apart?

An ounce of gold can be drawn into a wire 26 miles long. If the density of gold is 19.3g/ cu. cm, what is the diameter of the wire?

number 40 "circles and scalene triangle"

One dozen donuts require 10 tbsp of glaze to coat them completely, how much glaze would be needed if all the dough were used to make five large donuts instead?

The velocity of a car in ft/s is described by v(t)= 10t^1.3 for t=0 to t=7 seconds. Find the car's average velocity for this 7 second interval.

number 60 "equilateral triangle and semicircle"/

thanks guys!

[88bobcat]

[88bobcat]

[88bobcat]

[88bobcat]

[88bobcat]

[austorior]

can someone with the test help me explain the geometry problems plz? thx

[88bobcat]

Make a sketch of the problem if necessary.....


[unparseable or potentially dangerous latex formula]

[jholland]

Shouldn't the amount of glaze needed for the 5 doughnuts be less than for the 12. If you are making fewer with the same volume of dough, the total surface area should decrease, and, therefore, less glaze will be needed. The answer given on the key was between 7 and 8.

[jholland]

The average velocity of the car is 54.6 ft/s. The answer was asked for in mph so it should be 37.2 mph. The answer key is incorrect.

[88bobcat]

[88bobcat]

[AuSmith]

[austorior]