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Tutors Answer Your Questions about Trigonometry-basics (FREE)
Question 105051: Solve the following system of linear inequalities by graphing.
x + 2y _< 3
2x – 3y _< 6
The lines are supposed to be under the < There is supposed to be a "shaded" area in the graph somewhere and I do not understand the "shading" part.
Click here to see answer by scott8148(3382)   |
Question 105070: Which property of the real numbers is illustrated by the following statement?
(17 • 8) •7 = 17 • (8 • 7)
A) Commutative property of multiplication
B) Associative property of multiplication
C) Distributive property
Click here to see answer by elima(1433)  |
Question 105438: what is the formula for find the center of gravity is the wieght are known for both ends and the length of the beam they are attached to how do i find the distance from the ends to the center of gravity/balance point.
beam is 12ft long the wieghts are a=79 lbs and b=33 lbs what is the distance a= x ft b= x ft
thank you
Click here to see answer by checkley75(3666) |
Question 105438: what is the formula for find the center of gravity is the wieght are known for both ends and the length of the beam they are attached to how do i find the distance from the ends to the center of gravity/balance point.
beam is 12ft long the wieghts are a=79 lbs and b=33 lbs what is the distance a= x ft b= x ft
thank you
Click here to see answer by Ahmath(7) |
Question 105761This question is from textbook structure and method book2
: 2 ships leave port one sailing east and the other south. some time later they are 17 mi apart, with the eastbound ship 7 mi farther from the port than the southbound ship. how far is each from port?
I thank you very much for your assistance. I constantly struggle with all of my word problems.
Once again your time and assistance is appreciated.
Sincerely,
StephThis question is from textbook structure and method book2
Click here to see answer by kmcruz09(38) |
Question 106408This question is from textbook Mechanics I
: Hey, im stuck on a question, thanks for any help. The question is;
When orineteering, Jack walks X km on a bearing of 100 (Degrees) from his starting point O, then walks Y km on a bearing of 200 (Degrees) to a hut, H. Calculate the magnitude and direction of the displacement vector OH (arrow above facing right) when,
x = 6 and y = 7.
I've tried the sine and cosine rules, but all i can make out is two sides and no angles, i can't find another angle, i have no idea how to solve this problem, i have the answers also, i tried working backwards but still can't find the way, thanks for any help in advance! :DThis question is from textbook Mechanics I
Click here to see answer by Fombitz(2113)  |
Question 106483: Bonnie has 41 1/2 ft. of string. She wants to cut it into pieces 3 3/4 ft long.
How many pieces of string will she have? How much string remains, if any?
a) 12 1/17
b) 15 2/7
c) 13 1/5
d) 11 1/15
help me please
Click here to see answer by scott8148(3382) |
Question 106492: The identity of:
sin^4x+cos^4x=
(sin^2x+cos^2x)(sin^2x+cos^2x)
sin^2x+cos^2=1
This is the answer I come up with, it is not one of the options available as an answer.
The answers given are
1. -2sin^2xcos^2x
2. 1+2sin^2x-2sin^4x
3. 1+3sin^3x-2sin^2x
4. 1-2sin^2x+2sin^4x
5. 0
Click here to see answer by scott8148(3382) |
Question 106494: 0, 1, 15, 19, 23, 31, 49, 55, 59, 87, 91, 97, 103, 105
Which of the given numbers are composite?
Click here to see answer by checkley75(3666) |
Question 106481: A bill is sent to the President of the United States when it has passed both houses of Congress. A majority vote in both the House of Representatives (435 members) and the Senate (100 members) is needed for the bill to be passed on to the President. The majority vote is a majority of the members present, as long as more than one-half of all the members
are present. More than one-half of the members makes up what is called a quorum.
Once the bill comes to him, the President may either sign the bill, making it a law, or he can veto the bill. His veto sends the bill back to Congress.
Congress can still make the bill a law by overriding the Presidential veto. To over ride the veto, 2/3 of the members of each legislative body must vote to override it. Again, this is 2/3 of a quorum of members.
Assume that 420 members of the House are available to vote. How many votes are
necessary to make up a majority, which is anything over 1/2?
help please
Click here to see answer by stanbon(26291) |
Question 106538: I have another question about fractions. I need to no how to divide them.
Here is the problem:
5 1/3 divided by 2 2/5 (5 and the first 2 are whole munbers) Then I would come up with 16/3 divided by 12/5...then I am stuck. Do I flip the 12/5 to 5/12, then multiply? And what do I multiply, both straight across, or diagonoly?? Help please.
(I also want to thank everyone for all your help you have given me. It is much appreciated. Sometimes I cannot get the tutors email to email you guys back to thank you all.So THANK YOU EVERYBODY!!!)
Click here to see answer by MathLover1(1183)  |
Question 106690: A commercial airline is flying at 10km from the ground. It it approches the landing at an angle of 5 degrees from the ground, at what distance should the airplane begin it's descent? (answer is 114km from the airport, but need to know how to get there)
Click here to see answer by rcmcc(152)  |
Question 106690: A commercial airline is flying at 10km from the ground. It it approches the landing at an angle of 5 degrees from the ground, at what distance should the airplane begin it's descent? (answer is 114km from the airport, but need to know how to get there)
Click here to see answer by edjones(3298)  |
Question 107325: I need some help figuring out how to do this. Do I make the measurement with a ruler? Directions: Using figure 7.1, measure the distance from the loading well to each band on your gel and set up a table with your results on the worksheet titled Assignment 7.3. Next, use algebra to determine the log of unknown fragments in proportion to a logarithmic scale. Then, using the graph on the worksheet titled Assignment 7.3, plot the points for each of the standards and draw a straight line that connects as many of these as possible. Use the X-axis to plot migration distance and the Y-axis to plot the log of the size or molecular weight. Now you can take the distance of migration for any unknown sample and find that point on the X-axis; then go across to the regression line; and from that point, go down to the Y-axis. This point will represent the log of the size of your unknown band.
Click here to see answer by scott8148(3382) |
Question 108082: Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a
24-hour period. Julio samples about 120 bottles an hour and rejects the line if
he finds more than 1/50 of the sample to be defective. About how many defective
bottles should Julio allow before rejecting the entire line?
Can someone please help me with this problem? I do not even no where or how to begin?
Click here to see answer by checkley71(8405) |
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