Thursday
July 24, 2014

Posts by Christopher


Total # Posts: 574

Math
A boat sails 40km from point A to point B, east of A on a lake. Lodge P is south of point A. Another lodge Q is south of point B. The bearing of Q from point A is S52degresE and the bearing of P from B is S39degresW. If P is 60km from Q, calculate the bearing of lodge Q from l...

Math
Add a term to b^2 - 4/5b to make the expression a perfect square. Write the results as the square of a bracketed expression.

Math
The first three terms of an arithmetic progression are t, 2t-1, 2t+4. Calculate the value of t.

Math
In a triangle ABC, PQ is the midpoint of AB and AC. PQ = 2cm, BC =3cm. The area of trapezium PQCB = 10cm^2. If the area of triangle APQ = xcm^2. Calculate the value of x.

Math
An arc of a circle subtends an angle of 54 at the centre. If the arc is 9cm long, calculate the circumference of the circle.

Math
Simplify: sin60/tan30

Math
Find the equation of a line which passes through point P(10, 12) and // to y=x/2 + 4

Math
An open-ended regular hexagonal prism whose length is 15cm and whose cross-section has a perimeter of 24cm. Find the surface area.

Math
What are the formulas for 3-D figures?

Math
576^m-4 = 8^m*3^m find m.

Math
Alright!! Thanks!!

Math
In a family six members eat meat; five members eat fish while two eat both. Calculate the number of members in the family. How do we solve these ones? Hints please...

Science
On the arthropods part there is: A-butterfly, B-spider, C-centipede, D-mosquito.

Science
Dichotomous key. What does this mean? Plants with seeds Go to B Plants without seeds Go to B or Arthropods with wings Go to 2 Arthropods without Go to 3 AND WHAT'S THE MEANING OF GO TO 1 or B?

Math
Thanks this will help. I only knew of: AB + BC = AC(triangle rule) and AB + BC + CD = AC + CD = AD(parallelgram rule)

Math
These are vectors as well: (a) AB + __ = CA = 0 (b) AB +BC + CD + DA = __ the first was a mistake i wanted these ones. Complete these and please if you can, explain.

Math
Owkay thanks

Math
These are vectors: QA + __ =QB Complete the vector equation...

Chemistry
Stoichiometry; Find the percent yield of solid calcium carbonate made when 5.0 mL of 1.0 M Sodium Carbonate reacts with 0.40g Calcium Chloride Balanced Equation; Na2(CO3)+CaCl2-->2NaCl+CaCo3 could you please help me step by step to find the theoretical yield as well as the ...

Math
There are three times as many people in the psychology class as in the art history class. there are 16 more people in the algebra class then the art history class The total enrollment of the three classes is 86. How many students are enrolled in each class?. I need a little he...

Algebra
Oops I meant to say 86.

Algebra
There are three times as many people in the psychology class as in the art history class. there are 16 more people in the algebra class then the art history class The total enrollment of the three classes is 86. How many students are enrolled in each class?. So I know my equat...

Algebra
The length of a rectangular Garden is 40 yards longer then double the width The perimeter of the garden is 470 yards. find length and width of the Garden. L=2W+40 2W+2(2W+40=80 Kinda stuck here.

Algebra
I am a little stuck from here.

Algebra
The length of a rectangular Garden is 40 yards longer then double the width The perimeter of the garden is 470 yards. find length and width of the Garden. L=2W+40 2W+2(2W+40=80 Am I starting off right?

Algebra
Oh I got the formula backwards just had to flip it around. So yeah I got L= 7 for the length of the piece of steel and W=5 for the width of the piece of steel. I checked it and I got the same answer.

Algebra
The length of a rectangular piece of steel in a bridge is 3 meters less then double the width. The perimeter of the piece of steel is 24 meters Find the length and width of the piece of steel. l=3-2w? is part of the formula?

Algebra
My answer for melinda she earns $124 after you subtract 276 from 152 because 124 +152=276

Algebra
So Barbara earns $276 and thats the answer? I also need to find out how much melinda earns. So I assume I then subtract 276 from 400?

Algebra
Melinda earns $152 less per week then Barbra. The combined income of these two people is $400 per week. How much per week does each person earn. I need some help on this problem If im correct I multiply 2 times $152 then divide by 400?

Algebra
For their homecoming parade the students of U-Math have created a colorful banner, 53 meters in length, that is made of two pieces of parachute material. The short piece is 19 meters shorter then the long piece. Find the Length of each piece. Length of the long piece = Length ...

Algebra
Write the other number or expression in terms of the given variable. A 3 foot board is cut into two pieces. If one piece measures x write the expression for the length of the other piece. Ok now I know the first term is 2x correct? where do I go from here?

Algebra
thank you!

Algebra
eight times the difference of a number and three is equal to six times the sum of a number and one 8(x+3)=6(x+1) is this right?

Algebra
four added to one seventh of a number answer: 4+1/7x is this correct? or is it 1/7+4x?

Math
Mr Shen wished to enter the orange kite competition with an innovative kite of his own design. He did tests that showed an irregular quadrilateral design was best. The longest side (A) was twice the length of the shortest side (C). Side B was one and one-half times the shortes...

Math
L A=28 Length B=21 I got those answers can you help me on the other 2?

Math
I got the answers for A and B but how do I do that for C and D?

Math
Mr Shen wished to enter the orange kite competition with an innovative kite of his own desgin. He did tests that showed an irregular quadrilateral design was best. The longest side (A) was twice the length of the shortest side (C). Side B was one and one-half times the shortes...

Math
7 Meters

Math
The Kulas have decided to enclose their rectangular garden. The length of the garden is 8 meters, and 30 meters of fencing is needed to enclose the garden. What is the width of the garden?

Math
x=36

Math
The sum of one-third a number, one-sixth of the number, and one-ninth of the number is twenty two. Can someone help?

Math
Find x so the pitch is 1/3. There is also a number below the x in the figure which is 24 feet. So how do I solve?

Math
The steepest section of a track has a rise of 2240 meters for a horizontal distance of 6100 meters. what is the grade section of this track?

Math
Find X so that the pitch of the roof is 1/6. The number below the x is 30 feet in the figure. so how do I solve this?

Math
find the intercept and graph. -x+3y=-6 I need to complete the ordered pair (3,) so im I setting the problem up right -x(3)+3y=-6? and thus the missing ordered pair is -2?

Math
Graph the equation. Be sure to simplify equation before graphing it. -18+2y=-7y I got the answer y=2 because I subtracted 2 from both sides got -9 then divided by -18 and got 2. y=2. So now can someone help me with graphing the points?

Algebra
Graph the linear equation y=4/5x+5 I know how to plot the points. I just need help figuring out what numbers to plot.

Algebra
(y^3-y^2-4y-7)/(y+1) can someone show me how to do this?

Algebra
The area of a parallelogram is 115 square miles the base is= x+9 and the height is x-9. so the equation I got down which is 115=(x+9)*(x-9. Now I have to find the base and height in miles. Can someone help?

Algebra
To those who know how to use a ti84 plus calculator. Can anyone show me the steps on how to perform rational expressions and equations?

social studies
Which of the following statements about mayan and modern cultures is true

Algebra
I am having issues with factoring. I am trying to check my work using a TI84 Plus calculator but I don't know how to plug in a problem to check its factoring. Can anyone help? for example 44y^3+55y^2-11xy how can I go about plugging that in to check my work?

Math
,

Algebra
Hi I have a question concerning how to factor on a TI84plus what are the steps to doing that? much help is appreciated thanks!

Math
In a cyclic quadrilateral ABCD twice angle BAD =three times angle DCB. Calculate angle BAD

Math
Steve, can you explain a bit furthur, please???

Math
Steve, i'm still trying to use you way...

Math
What if she was rolling, anthony?

math probability
0.23

math
the cost of the nelson family dinner was $54.95 at the restaurant.they want to leave a 20% tip for the server. which equation will solve for the total amount of the dinner

physics
a bead on a wire 30m high is released and reaches point A, where is loops twice towards the right. what is the velocity and acceleration at point A-D? point A is at 20m directly below from starting point. Point B is 10m at the bottom of the first loop. point C is in between th...

physics
A girl coasts down a hill on a sled, reaching level ground at the bottom with a speed of 7.0 m/s. The coefficient of kinetic friction between the sled’s runners and the hard, icy snow is 0.054, and the girl and sled together weigh 749 N. The acceleration of gravity i...

Physics
A tuning fork creates sound wave with frequency of 170 hertz. If the speed of sound is 340 m/s, what is the wave length of the sound wave?

Physics
A tuning fork creates sound wave with frequency of 170 hertz. If the speed of sound is 340 m/s, what is the wave length of the sound wave?

English
What attitudes toward Catholicism, the religion Donne abandoned, are apparent in his poetry?

English
In Edward Spenser'r The Faerie Queene, how should we interpret the crowded and slightly comical scene at the beginning of Book 1?

English
"The Passionate Shepherd to His Love who is the audience of the poem?

Algebra
h^9-h^8+h-1 Factor by grouping Can someone help with this?

Pyschology
Can someone give me an example of source memory and explain the example?

Algebra
(y^3-y^2-5y-5)/(y+1) can someone help me solve this?

pyschology
thanks!

pyschology
I am writing a paper for Pyschology about how I have a tendency after washing my hands I have this pattern to take the paper towel or hand cloth and use it to open the door. Which psychological theory would this fall under? 1.Classical Conditioning 2. Operant Conditioning 3.So...

word problem
You deposit $1000 at 2% for 20 years, compounded annually. What's the future value? use this interest 0.02/365

math
Thank you Ms. Sue

math
If 1,000 UD dollars is equivalent to 0.8610 European euros, convert $11,000 to euros. $11,000 is equivalent to?

Math
a^2+ab over 4b for a=-3 and b=-2

Math
48z^2-16z z=1/4

Math
Evaluate x to the second power minus 3x x=-2

English
What does architecture represent in the poem beowulf?

English
Why use a Epithet or kennings in Beowulf?

Algebra
1.4-7(2)^3/(-8) 2.6(4-3)^2-3(2) need help evaluating

Algebra
1.-5/39+23/39 2.-7/12+1/6 can someone help me with these?

Algebra
-1/4-3 simplify as integer or fraction Can someone show me how?

Algebra
simplify as integer or fraction. 3/4-3/5 can someone help me with is?

economics
The reasons that cause monopoly occurrence

Math - 8th Grade
Please help: The distance from home plate to second base on a softball diamond is 84.853 feet. This is the same as the distance from first base to third base. What is the area of a softball diamond? Round your answer to the nearest square foot. 1,800 ft.2 3,558 ft.2 7,200 ft.2...

Math - please help
The Great Pyramid of Giza is 280 feet tall and about 440 feet wide at the base. The distance from the apex to the center of one side of the base is 356.1 ft. What is the area of one side of the pyramid? 61,600 ft.2 99,708 ft.2 156,684 ft.2 78,342 ft.2 Please explain the answer...

Chemistry
Consider a generic redox reaction then suppose that the coefficients in the redox reaction are doubled. How will the following quantities be affected for a voltaic cell under nonstandard conditions, will they be Doubled, Halved, Squared, or No Change. Note that n is written as...

Philosophy
Martin Luther King, “Letter from Birmingham Jail,” draws from the thought of Thomas Aquinas in saying “an unjust law is a human law that is not rooted in eternal and natural law. Any law that uplifts human personality is just. Any law that degrades human person...

Biology
1. Bone is formed from the deposition of __________ into connective tissue A. Calcium and Phosphate B.Sodium and potassium C. potassium and calcium D. Sodium and Phosphate E Actin and myosin 2. The major disadvantage of exoskeletons is A. Animal outgrows it B. it is not repair...

Biology
Which of these systems is involved in connecting one body system with another? A. Integumentary B.Muscular C. Immune D. Digestive E. Endocrine I think its E

biology
1. The function of the circulatory system is to: A. Deliver oxygen and nutrients to every cell B. facilitate communication between different tissues c. Remove Wastes from tissues d. all of these e.none of these I believe the answer is D all of them

government
What is best answer below with regard to the quantity of end items procured with a given procurement appropriation, the Secretary of Defense (1). Can authorize any quantity of items to be procured. (2). Cannot exceed the quantity specified in the defense appropriation act. (3)...

Math - Please help
I need help on the following please? A group of clowns performs in a ring with an area of about 2,123 square feet. What is the circumference of the ring? Choose the closest answer. 156 ft. 52 ft. 163 ft. 82 ft. Thank You. Please explain the answer

8th Grade Math
I need help on the following please? A group of clowns performs in a ring with an area of about 2,123 square feet. What is the circumference of the ring? Choose the closest answer. 156 ft. 52 ft. 163 ft. 82 ft. Thank You. Please explain the answer

Physics
A. mass X gravity X 18 people = 8476kgm/s^2 B. mass X gravity X sin(14) X 18 = 2050N C. Power = Force X Velocity 22,000 = 2050 X Velocity Velocity = 11m/s

Philosophy
True or false 1.Friedrich Schleiermacher argued that to understand the meaning of the Bible or any other text, it is necessary to consider the time and place of its author(s), and to ascertain the intention of the author(s) in producing the text. True 2.Throughout his life Lud...

Education
which of the following is not an example of typical toddler behavior? a.toddlers are fairly capable of self feeding b.toddlers dont like food mixtures c.toddlers show decided food prefrences d.toddlers present a consistently good appetite

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