An airplane flying at 550 miles per hour has a bearing of 53°. After flying for 2.5 hours, how far north and how far east will the plane have traveled from its point of departure? I'm having a REALLY hard time with this one. I don't know what I'm doing wrong. C...
From a point 50 feet in front of a church, the angles of elevation to the base of the steeple and the top of the steeple are 35° and 47° 20', respectively. Find the height of the steeple. I missed class this day and have no idea how to go about this problem. I'...
A circular power saw has an 8-1/2 inch diameter blade that rotates at 4400 revolutions per minute. a)Find the angular speed of the saw blade in radians per minute. b)Find the linear speed in feet per minute of one of the 24 cutting teeth as they contact the wood being cut. I...
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The line for the cake walk was one-third the length of the line for the hoop shoot if there were 12 people in line for the hoop shoot how many people were in for the dunking machine?
18 and 19
A student used 10 mL water instead of 30 mL for extraction of salt from mixture. How may this change the percentage of NaCl extracted? My book says: % NaCl= (grams of NaCl / total grams of mixture) x 100 What I don't get is if it does change the percentage, why? It says th...
You're given two things and asked to find another. You're given density, mass, and asked to find the volume. The formula for density is: D= Mass ------ Volume Rewrite this formula for Volume and you get: V= M --- D A 5.0 carat diamond will have a mass of: 5(0.200 g)= 1...
What is the specific gravity of alcohol having a density of .79 g/mL?
The relationship described below can be modeled using an equation. Identify the variables and write an equation to solve the questions below. Number of Credits Fees 3 2000 6 2600 9 3200 12 3800 15 4400 a) Write an equation to calculate the fees F when the number of credits n i...
a) 801 ¡ñ 30 + 4 ¡ñ 30 b) 65 ¡ñ 20 ¨C 5 ¡ñ 20 Just a dark circle in between each number 801 30 +4 30 65 20 -5 20
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