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September 1, 2014

Posts by jake


Total # Posts: 1,720

Physics
An elevator (mass 4175 kg) is to be designed so that the maximum acceleration is 0.0700g. What is the maximum force the motor should exert on the supporting cable?
February 1, 2012

Precalculus
How can i write this in log form 5^-2 = 0.04
February 1, 2012

Precalculus
Quad III and IV? May I know how you got 3.86132? and value for quad IV?
January 31, 2012

Precalculus
Solve for x, 0<x<2pi 3sin^2x - sinx -2=0 Its not factorable, do I use quadratic formula?
January 31, 2012

Precalculus
The answer says:16.0 or 74.0 degrees :|
January 31, 2012

Precalculus
When a projectile leaves a starting point at an angle of elevation of theta with a velocity v, the horizontal distance it travels is determined by: d=v^2/(32) sin2theta Where d is measured in feet and v in feet per second. An outfielder throws the ball at a speed of 75 miles ...
January 31, 2012

Precalculus
Write 4log2+log6-log3 as a single logarithm. Explain with steps please!~~
January 30, 2012

Precalculus
If the base was 2 then it would be cuberoot 2^6?
January 29, 2012

Precalculus
Evaluate log(Base4) ^3sqrt64 (The ^3 is an exponent infront of sqrt 64) I keep getting wrong answer :|
January 29, 2012

Precalculus
Solve for x: 6^(x+3) - 6^x = 215. I got answer as 1, is it correct?
January 29, 2012

Precalculus
Thankk you! Took me long to figure it out!
January 28, 2012

Precalculus
Solve 5^(2-x) = 1/125 for x.
January 28, 2012

Math
How do I solve this if there is no equation to this 1. The population of the bacteria in a Petri dish increases by a factor of 10 every 10 hour. If there are initally 20 bacteria in the dish, how long will it take before the population increases to 60,000 to the nearest tenth ...
January 28, 2012

history
What is the term for the power to make final decisions?
January 28, 2012

government
What is the term for the power to make final decisions?
January 28, 2012

Math
Determine the exact value of cos 465 degrees a) √3 + √2/2 b) √2 + √3√2/4 c)√2 - √3√2/4 d)2+√2-√3√2/4
January 27, 2012

Math
Explain how to do this with steps please. 1. Simplify cos(x-y)+cos(x+y)/cosx I did some of these so far, don't know if it is correct. Formula: cosxcosy= cos(x+y)+cos(x-y)/2 cos(x-y)+cos(x+y)/cosx =cosxcosy/2cosx
January 26, 2012

Math
Explain how to do this with steps please. 1. Simplify cos(x-y)+cos(x+y)/cosx Formula: cosxcosy= cos(x+y)+cos(x-y)/2 cos(x-y)+cos(x+y)/cosx =cosxcosy/2cosx
January 26, 2012

Math
Justine measures the milk in two different cartons. One carton contains 1 liter and 665 milliliters of whole milk, and the other carton contains 1 liter and 183 milliliters of chocolate milk. How much more whole milk is there than chocolate milk?
January 26, 2012

Math
How come I am not suppose to get rid of the the denominator?
January 25, 2012

Math
How many solutions does the equation cosx + 1/2 = 1 have for 0<x<2pi cosx+1/2=1 cosx+1=2 cosx=2-1 cosx=1 therefore 1 solution? A) 1 b) 2 c) 3 d) 4
January 25, 2012

Math
Solve (sinx-1)(cosx -1/2) = 0 where 0≤x<2pi a) pi/3, pi/2, 5pi/3 b) pi/6, 5pi/6, pi c) pi/3, pi, 5pi/3 d) pi/6, pi/2, 5pi/6
January 25, 2012

Math
Thank you~ T.T my school is fast paced, I am trying to keep up...
January 25, 2012

Math
How did you get 1 + cot^2 x?
January 25, 2012

Math
What is the first step. Explain please. Which expression is equivalent to cos^2x + cot^2x + sin2^x? a) 2csc^2x b) tan^2x c) cot^2x d) csc^2x cos^2x + cot^2x + sin2^x
January 25, 2012

inventions
Need to come up with an invention
January 25, 2012

Precalculus
Which value for x is a solution to cosx = sqrt of 2/2? a) -9pi/4 b) 3pi/4 c) -3pi/4 d) 4pi/3 What is the first step I should do?
January 24, 2012

Math
Options are a) 0 b) 1 c) -1 d) undefined
January 24, 2012

Math
Could someone explain the steps for this question. Simplify the expression tan(5pi/8)-tan(3pi/8)/1+tan(5pi/8)tan(3pi/8)
January 24, 2012

English
I am doing an application it says: Have you held any leadership type positions? Yes/No Please describe (100 words or less) I did not have any leadership type positions, so no. My question is, do I have to explain why I did not have any leadership or is it only if I say yes?
January 23, 2012

math
During an art contest you and a classmate each won blue ribbons for 1/3 of the pieces you entered. You won 2 blue ribbons and the classmate win 3. Explain how.
January 20, 2012

Math
If the diameter of a monster truck tire is 3.5 m and it makes one rotation every 5 seconds, how far does the tire roll in 1 minute? Diameter 3.5 radius: 3.5/2 = 1.75 12(2pi x 1.75) =131.9 m the book states that its 263.89 m? What did I do wrong?
January 19, 2012

Math
I am confused for number 3
January 19, 2012

Math
I am still confused for number 2. For number 3, you used the amplitude(which is 4) to find lowest+highest?
January 18, 2012

Math
1. The height of a bumble bee above the ground is modelled by h(t) = 0.5cos(2π t) + 2, where h is in metres and t is in seconds. At what time is the bee’s instantaneous rate of change of height with respect to time greatest? a.) 1 s b.) 1.25s c.) 1.5s d.) 2s Why is ...
January 18, 2012

Math
Thank you~
January 18, 2012

Math
Why is 32/5 = 6 2/5?
January 18, 2012

Math
If an object travels in a circle 32pi/5 radians, at what degree measure is it, relative to where it started? a) 1052° b) 144° c) 72° d) 98.6° I got 1152° but there is no option for the answer, what did I wrong?
January 18, 2012

Math
How do you find the distance? Please explain the steps >< A ball in a pinball machine moves 13 of the way through a circular groove that has radius 3 m. How far does the ball travel? a. 3.14 m b. 360 m c. 6.28 m d. 0.69 m
January 18, 2012

math
i think it is b credit unnion
January 11, 2012

math
7. A _______ is a group of people who agree to save their money together and to make loans to each other at a relatively low rate of interest. [A. commercial bank] B. credit union C. Christmas club D. investment firm
January 11, 2012

math
3. The gross income of David Vaughn is $785 per week. His deductions are $42.25, FICA tax; $90.33, income tax; 2% state tax; 1% city tax; and 3% retirement fund. What is her net income for one week? A. $675.32 B. $628.77 [C. $605.32] D. $749.77
January 10, 2012

english
1. Write a composition using one of the topics listed below. Your composition should be three to five paragraphs long. It should contain an introduction, a body, and a conclusion. c. Compare and contrast driving in the winter and driving in the summer. 2. Write a letter of ...
January 10, 2012

Precalculus
For number 4, I got this answer after calculating... 4x/(x-2)=(3x-2)/(x-2) 4x(x-2)=(3x-2)(x-2) 4x^2 - 8x = 3x^2 - 6x - 2x + 4 4x^2-3x^2-8x+6x+2x-4=0 x^2 - 4 =0 (x-2)(x+2)=0 x= 2, -2 Am I doing something wrong?
January 10, 2012

Precalculus
Could someone help/verify these answers~ Thanky you! 1.What is the range of the reciprocal function of f(x)=10-x^2? a) {YER|y≥1/10} b) {YER|y≥10} c) {YER|1/10≤y<0} d) YER|y<0 or y≥1/10} Answer: D? ---------------------------------------- 2. It ...
January 10, 2012

english
please check for mistakes it is in paragraphs but the one i put up is not
January 10, 2012

english
1. Write a composition using one of the topics listed below. Your composition should be three to five paragraphs long. It should contain an introduction, a body, and a conclusion. c. Compare and contrast driving in the winter and driving in the summer. 2. Write a letter of ...
January 10, 2012

Math
So I have to use quadratic formula right? If so, no wonder I don't get the answer
January 9, 2012

Math
How do you do this question? I am not sure if this right. 1. solve rational equation A) (x+3)/(x-1)=2x+1 x+3=(2x+1)(x-1) x+3=2x^2 - 2x + x - 1 ??
January 9, 2012

calculus AB
ç is the integral sign
January 8, 2012

calculus AB
given ç 1to-1 f(x)dx=0 and ç 1to0 f(x)dx=5, compute the following a.ç 0to-1 f(x)dx b.ç 0to1 3f(x)dx=0 c.ç 1to-1 (f(x)+7)dx=0
January 8, 2012

calculus ab
The velocity of a particle tralling along the x-axis is given by v(t)=(e^-t)(sin(t)). Find the following a. Compute the net change in distance from time t=1 to time t=3 (this is equivalent to s(3)-s(1) b. compute the total distance traveeled from time t=0 to time t=6pi c. Find...
January 8, 2012

ap calculus ab
for f(x)=lnx we know that f(e)=1. Use the tangent line at(e,1) to compute the tangent line approximation of f(3). what does the difference between the actual value and the tangent line approximation have to do with the concavity (2nd derivative) of the function at (e,1)?
January 8, 2012

Math Fractions
12/12 divided by 3/8 i really need help someone plz help!!!!
January 5, 2012

Math Fractions
12/12 divided by 3/8 i really need help someone plz help!!!!
January 5, 2012

Math Fractions
12/12 divided by 3/8 i really need help someone plz help!!!!
January 5, 2012

Math Fractions
12/12 divided by 3/8 i really need help someone plz help!!!!
January 5, 2012

Math Fractions
12/12 divided by 3/8 i really need help someone plz help!!!!
January 5, 2012

Shurley
im srry if i offended you ms.sue
January 4, 2012

Shurley
no? I dont no wat u meen
January 4, 2012

Shurley
ty btw y do u answer all the questions
January 4, 2012

Shurley
I'm in Shurley Grammar does any1 no how to clasify way?
January 4, 2012

english
20. Which of the following is a run-on sentence? A. We like to take a walk after dinner. B. Mike joined the army, and he became more disciplined during the training. [C. Karen's uncle arrives tomorrow she wants to see him.] D. The house was owned by the mayor.
January 4, 2012

english
19. Which of the following sentences is correctly punctuated? A. Mary remembered to buy milk didn't she? B. The company held it's annual party at the convention center. [C. Mr. Jones visited the YMCA before becoming a member.] D. The local police asked the F.B.I. to ...
January 4, 2012

english
17. Which of the following is a complex sentence that contains a dependent adverbial clause? A. Mark expects the photo to arrive late. B. Mark expects the photo to arrive in damaged condition. [C. Mark expects the photo to arrive when the letter arrives.] D. Mark expects the ...
January 4, 2012

english
16. Which of the following is a compound sentence? A. Rain and heavy winds caused damage along the coast. [B. Sue gave Jim a new racket, and he left for the tennis courts.] C. We found our way home without a map. D. Kim will take her daughter shopping when she learns to behave...
January 4, 2012

english
my other answer was B
January 4, 2012

english
6. Which one of the following sentences is punctuated correctly? A. The sea calmed; but no boats, left shore. B. The sea calmed, but no boats left shore. [C. The sea calmed but no boats left shore.] D. The sea, calmed, but no boats, left shore.
January 4, 2012

english
15. Which sentence uses the passive voice? A. Lies destroy friendship. B. John searched for a job. C. The rain continued until dawn. [D. The tree was planted by Mary.]
January 4, 2012

english
14. Which sentence contains words in italics that form a gerund phrase? (A gerund is a verb form used the same way as a noun.) A. An interesting novel provides good entertainment. [B. Winning the race demanded speed and endurance.] C. I am going home. D. The laughing boy sat ...
January 4, 2012

english
13. One of the following sentences contains an independent clause and a dependent clause, which makes it a complex sentence. Which is the complex sentence? A. I came home; I saw an envelope in the mailbox. [B. After the rain ended, the sky became blue.] C. I hesitated a moment...
January 4, 2012

english
12. In the sentence "I want to sleep when I'm tired," the words "to sleep" are a/an A. prepositional phrase. B. indirect object. C. predicate adjective. [D. infinitive phrase.]
January 4, 2012

english
is it D
January 4, 2012

english
9. How is a compound sentence formed? A. By joining a simple sentence with a dependent clause B. By joining a dependent and independent clause with a conjunction [C. By joining two independent clauses and one dependent clause] D. By joining two simple sentences with a comma ...
January 4, 2012

english
8. Which one of the following sentences fails to follow parallel construction? A. I would be surprised if Jacob's essay does not demonstrate critical thought, careful analysis, and exhaustive research. B. It was a fine but extremely boring lecture. [C. I want nothing more ...
January 4, 2012

english
7. Which sentence uses correct parallel construction? A. Most people enjoy ice cream and the plant grows. B. Anyone who is going to work here will have to be athletic, an intelligent person, and have a good sense of humor. C. You can either talk to the manager about your ...
January 4, 2012

english
6. Which one of the following sentences is punctuated correctly? A. The sea calmed; but no boats, left shore. B. The sea calmed, but no boats left shore. [C. The sea calmed but no boats left shore.] D. The sea, calmed, but no boats, left shore.
January 4, 2012

english
is it C
January 4, 2012

english
5. How could you combine the following two sentences into one compound sentence? The rabbit jumped into the bushes. The dog followed it. [A. The dog followed the rabbit when it jumped into the bushes.] B. After the rabbit jumped into the bushes, the dog followed it. C. The ...
January 4, 2012

english
4. Identify the sentence that contains a noun clause in italics. A. Betty would like to harvest the corn. B. When should Betty harvest the corn? [C. What Betty wants is to harvest the corn.] D. Betty wants to harvest the corn.
January 4, 2012

english
3. Which one of the following statements is an example of a complex sentence? A. Sparrows at the bird feeder compete for seeds. B. Neap tide is the best time for digging clams. [C. The earth was spinning when Lucas first saw Lucille.] D. The crescent moon is a symbol of Islam.
January 4, 2012

english
1. A split infinitive is an infinitive that A. is used as an adjective or a noun. B. must have a subject. C. is used without the word "to." [D. has a word between "to" and the verb.]
January 4, 2012

english
is it C
January 3, 2012

english
14. Concerning dictionaries and their proper use, which one of the following statements is most accurate? A. Formal usage of a word is considered colloquial. B. A dictionary's word entry offers a fixed, permanent meaning. C. A syllable is a unit of sound. [D. Foreign words...
January 3, 2012

english
12 is B
January 3, 2012

english
no i am not really clear but is it B
January 3, 2012

english
is it A
January 3, 2012

english
is A correct
January 3, 2012

english
11. Which of the following italicized words is correctly capitalized? A. Jim must drive to the North to study the northern lights. B. Mount mckinley is the tallest mountain in North America. C. The most beautiful State is Hawaii. [D. Marsha speaks excellent german.]
January 3, 2012

english
9. Which sentence below contains a correctly used modifier in italics? [A. He spoke sharply to his sister.] B. I feel goodly now that I'm over the flu. C. The sauce tasted bitterly, and I couldn't swallow it. D. Joe looked sad at his broken bike. is my answer correct
January 3, 2012

english
if this is wrong my 2 answer is A
January 3, 2012

english
6. Which one of the following sentences contains an incorrect usage of the singular possessive? A. The alpha male is often the pack's leader. B. Icarus's fate was sealed when he approached the sun. [C. Mary was dominant among Jesus' disciples.] D. The north forty ...
January 3, 2012

english
is it a
January 3, 2012

english
5. Choose the sentence that has a subject complement. A. I felt much better. [B. The nurse felt my pulse.] C. The day ended with many surprises. D. We can't leave without seeing her. is my answer correct
January 3, 2012

english
2. Which of the following is a correctly written compound word? A. Quickly-running B. Thirty one [C. Self-evident] D. Spur of the moment-decision is my answer correct
January 3, 2012

physics
A 55kg Man is on a merry go round and is 15m from the center. It takes 4.5 seconds for 1 complete trip. What is ac and fc?
December 27, 2011

Modeling Exponential Growth and Decay
Information provided: Whooping Crane Population Size 1940-1996 Year # Cranes 1940 22 1950 34 1960 33 1970 56 1980 76 1990 146 1991 132 1992 136 1993 143 1994 133 1995 158 1996 159 1.) Use exponential regression to find an exponential model of the data. y= ae^(bx) 2.) Use your ...
December 19, 2011

english
thanks for all the help
December 14, 2011

english
20. Which of the following sentences has a helping verb? [A. She had rested on the dock.] B. She swam across the lake. C. He went home late. D. Her brother paddled the canoe.
December 14, 2011

english
d is correct answer
December 14, 2011

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