Posts by BOBBY

Total # Posts: 744

MATHS
480

ALGEBRA
In how many ways can a five questions,true or false test be answered if each question must be answered true or false

ALGEBRA
when the sun is 57 degree up from the horizon,a tree cast a shadow 14 yard long.how tall is the tree?

social studies
citizins of the country elect represenatives for the national legislature. Those represenatives then choose a well-respected member of the majority party to be the one who will make sure that laws are properly carried out. What type of democratic system is described om this ...

social studies
what is the difference between a federal form of government and a confederal form of government A. A federal government is democratic while a condederal government is dictatorial B.A federal governtment has a constitution while a confederal government does not C.A federal ...

social studies
citizins of the country elect represenatives for the national legislature. Those represenatives then choose a well-respected member of the majority party to be the one who will make sure that laws are properly carried out. What type of democratic system is described om this ...

social studies
which principles are typically associated with the republican party? select all that apply A.limited government B.social justice C.progressive ideals D. traditional values

Maths
A ship sails due north 3 kilometres( Point A) and then due east 16 kilometres(Point B) the returns to its original starting point. How far does it travel from point b back to the start. ( Shortest Distance)

Maths
A ship sails due north 3 kilometres( Point A) and then due east 16 kilometres(Point B) the returns to its original starting point. How far does it travel from point b back to the start. ( Shortest Distance)

Algebra Help ASAP Please
Tom, Dick, and Harry are three brothers and have $107.60 together. Tom feels sorry for hairy because he has less money than Tom. So Tom gives harry $2.10 so they both will have the same amount after the transfer. Dick doesn't know about Tom's gift and he gives $1 to ...

@AllCheaters
ok

Physics
hahhahhahahhah

Algebra Word Problem
During summer vacation, c children went to different destinations with their parents. 36% of the children went to Europe and 24 children to Asia. The rest of the children went to South America. How many children went to South America?

social studies
yea

math
2cos(1/2x)-cos(1/2x)=0 , where 0<x<2pi determine the complete solution for the equation

Ruwaydah
Hey there! I have looked it through quickly. And I think that you would need to pay your attention not only on the quotations marks. if you really care about the grade, go to the professional service like Supreme Writings and let them have a look at your paper.

Precalculus
The answer isn't 6 @Steve...

Precalculus
What is the smallest positive integer $n$ such that all the roots of $z^4 - z^2 + 1 = 0$ are $n^{\text{th}}$ roots of unity?

Algebra word problem
It takes john 12 hours to plow a field. After he had been working for 3 hours, his brother Mike came to help. Together they finished the job in 5 hours. How long would it take mike to plow the field working alone? How would I set this problem up in fraction form? And would I ...

precalculus, complex numbers
Let $\omega$ be a complex number such that $\omega^7 = 1$ and $\omega \neq 1$. Let $\alpha = \omega + \omega^2 + \omega^4$ and $\beta = \omega^3 + \omega^5 + \omega^6$. Then $\alpha$ and $\beta$ are roots of the quadratic \[x^2 + px + q = 0\] for some integers $p$ and $q$. ...

Math
A. Can't graph for you, sorry! B. The function is linear, as for every equal change in x, there is a set change in y. C. x increases by 1 every time y increases by 2. (y=2x-1) D. Plug into equation y=2x-1, so we get 20-1=19

precalculus
Let $R$ be the set of primitive $42^{\text{nd}}$ roots of unity, and let $S$ be the set of primitive $70^{\text{th}}$ roots of unity. How many elements do $R$ and $S$ have in common?

Math
How many three-digit counting numbers are exactly divisible by 6 but not also exactly divisible by 9?

English
Why is it difficult? I have never thought about it. Try to say it not in a quick way. Separate the words - hope and full and that is all

english
Yes, I also think that variant B is the most general and it must be correct. And by the way, if you need to develop this sentence and write a whole paragraph, you may go to the service I like personally. It is Prime Writing service

Math
A pencil costs $3.50 and a pen costs $6.70. Jessica bought m pens. She also bought 4 fewer pencils than pens. Write an algebraic expression for the total amount she spent. The answer supposed to be 6.70m + 3.5 (m-4). I got confused of what to do

algebra 1
x = -3 ,-2 ,-1,1,2,3 y= ?

algebra 1
write and graph the inverse variation when y=3 and x=2 find k = write the inverse variation fill in the table of values and graph x = -3 ,-2 ,-1,1,2,3 y= ?

algebra 1
write and graph the inverse variation when y=3 and x=2 find k = write the inverse variation fill in the table of values and graph x = -3 ,-2 ,-1,1,2,3 y= ?

Math
f(x+h)?f(x)=4hx?1h+5h^2. Find f?(x).

trig
Thanks....got it

trig
Brian is riding a Ferris wheel. The wheel has a radius of 25 feet, and at his lowest point, Brian is 8 feet off the ground. Brian times how long it takes to travel from the lowest point to the highest point and finds that it takes 8 seconds. Write a sinusoidal equation to ...

Math
A rectangular football field, including both end zones, is 120 yards long. The field has an area of 57,600 ft.². What is the width of the field in feet.

math
Every night when Isabella came home from work she put any change she had in her pockets into a jar. One day she wanted to know how much change she had in her jar. She noticed that she had two more nickels than twice the number of dimes, and eight fewer quarters than twice the ...

Math
Help me find p please. (X-3.15)^2=4p(y-219.7981936) Thanks!!!

Math
thanks Jamez

Math
Michael saves $423 dollars a month for college. About how much will he have saved after 4 years?

Physics
Thank you so much for the help!! Just to double check my math is correct, did you get about 2J as your answer? 2.45 to be exact

Physics
A mass m = 1 kg initially at rest at height h = 2m slides to the bottom of a 45 ramp. there is no friction between the mass and the ramp. At the bottom of the ramp the speed of the mass is 4 m/s. How much heat was generated by the friction as the mass slides down the ramp? Any...

Physics
A motor lifts an elevator of mass m at constant speed. The power output of the motor is P and there are no frictional losses so that all the power output from the motor goes into lifting the elevator mass. What is the correct expression for the time required for the motor to ...

Physics
Searches related to a motor lifts an elevator of mass m at constant speed. The power output of the motor is P and there are no frictional losses so that all the power output from the motor goes into lifting the elevator mass. What is the correct expression for the time ...

ALGEBRA 2
Let's take this step by step. 1. We can let x = number of apple pies you would make and y= the number of apple cobblers you make. 2. We can make an inequality showing the constraint of apples we need. So: 4x+2y<=16. Done! 3. Next ingredient we would use is flour, so let...

Math
1     to see this. You should get a pivot in each column. 1 (c) No, they do not form a basis because they do not span P3. (You would need 4 vectors to span P3.) 3. Let M2×2 be the vector space of 2×2 matrices with the usual ...

Physics
When boiling​ water, a hot plate takes an average of 9 minutes and 47 seconds to boil 100 milliliters of water. Assume the temperature in the lab is 75 degrees Fahrenheit. The hot plate is rated to provide 195 watts. How efficient is the hot​ plate? Thanks.

Math
Based on how you phrased the question, 20 percent would be the answer

Math
9/45 * 100% = ?

Biology
Hi all, Need help with this: What is the difference that you see on a EKG when you have non-transmural MI vs. transmural MI? a) In transmural MI the Q wave is amplified, and the R wave is depleted making the QRS complex look inverted b) In non-transmural, the T wave is absent ...

Math
The cost for 3 dinners plus a 15% tip is $27.60. Write an equation representing the situation if p is the price of the dinner in dollars. You may asssume there is no tax.

math
AB = 3x + 9, BC = 4x - 7, AC = 37. What do x and AB equal?

PE
True C C

Physics
idk sorry fam

Physics
A ball is thrown horizontally from the building roof at a speed of 20 m/s. Takes ball 4 seconds to reach the ground. How tall is building? What is the ball’s speed and direction as it contacts the ground? How far from the base of the building does the ball land? Use ...

Math
In the NFL, a division consists of 4 teams, each of which plays each other team twice. Assume that in any game, either team is equally likely to win (and there are no ties). What is the probability that, at the end of the season, the division has neither a perfect team with 6 ...

math
10 years ago raj deposited $5000 into an investment account with intrest compound quarterly. for the first 5 years the intrest rate was 6% and for the next 5 years the interest rate changed to 4.5% how much money is in the account now

Chemistry
A buffer was prepared by mixing 0.1 M ch3cooh with 0.1M ch3cooNa in the ratio 8:2. Calculate ph after the addition of 2mL of 0.1 M HCl? When you do the 8:2 ratio and add 2 mL of 0.1 M HCl, the buffer is gone and you are left with 1*10^-3 moles of ch3cooh. How would you ...

Chemistry
The acetate buffer were prepared by mixing 0.1 M ch3cooh with 0.1M ch3cooNa in the ratio 8:2 and 2:8. Calculate the resulting ph after the addition of 2mL of 0.1 M HCl to 10 ml of buffer 8:2 and 4ml of 0.1 M NaOH to 10 ml of buffer 8:2.

Geometry
maria is building a carrying case for a musical instrument. The case will have the shape of a triangular prism. She wants to know how much material will be needed to build it. The case will have the dimensions given in the diagram. What is the surface area of the case in ...

Math
19 students share 6 pizzas each need equal portions how much will each one have? I divided 6 pizzas into 8 pieces which gave me 48 pieces so 6/8 of a pizza

Maths
Tom reads that each seedling he is planting needs an area of 150 square centimetres of garden. Tom has 80 seedlings to plant. What is the total area of garden the seedlings will need? Give the area in A: Square Centimetres or B: Square Metres

math
Write4.1x10 to the 5th power in standard form

Math
What is the range between 58 degrees and -88 degrees

Physics
An airplane has a velocity of v=(5m/s)i + (4m/s)j at t1= 3s. For the time interval from t1=3 seconds to t2=13s the average acceleration is a= (.5m/s^2)i + (.2m/s^2)j. At 13s find the magnitude and direction of the velocity of the airplane.

Physics
A grizzly bear is running at a speed of 25m/s with respect to a man. The man is running 20m/s with respect to a rock. What is the bears speed with respect to the rock. (ALL VELOCITIES ARE IN THE SAME DIRECTION AND POSITIVE)

Physics
A grizzly bear is running at a speed of 25m/s with respect to a man. The man is running 20m/s with respect to a rock. What is the bears speed with respect to the rock. (ALL VELOCITIES ARE IN THE SAME DIRECTION AND POSITIVE)

Physics
An airplane has a velocity of v=(5m/s)i + (4m/s)j at t1= 3s. For the time interval from t1=3 seconds to t2=13s the average acceleration is a= (.5m/s^2)i + (.2m/s^2)j. At 13s find the magnitude and direction of the velocity of the airplane.

Dynamics
A 45ft long conveyor is used to move boxes up to a second level. The belt speed is 150ft/min and the conveyor is inclined at 15 degrees. Boxes are dropped vertically onto the conveyor and have no horizontal speed. The static and dynamic coefficient of friction between the belt...

math
The race was around a circular track for twenty-two laps.Calculate the number of radians a racer would travel from start to finish

English
What roles are played by the female characters you encountered in this unit? Describe some of these female characters, their traits, and the roles they played within the selections you read, especially considering that all of those selections had male characters as protagonists.

Chemistry
A 70.0 mL solution of 0.171 M potassium alaninate (H2NC2H5CO2K) is titrated with 0.171 M HCl. The pKa values for the amino acid alanine are 2.344 (pKa1) and 9.868 (pKa2), which correspond to the carboxylic acid and amino groups, respectively. a) Calculate the pH at the first ...

Chemistry
What volume (in milliliters) of 0.100 M NaOH should be added to a 0.120 L solution of 0.024 M glycine hydrochloride (pKa1 = 2.350, pKa2 = 9.778) to adjust the pH to 2.95? I don't know how to do this problem! Steps with answers please!! HELP!!

physics
Mayan kings and many school sports teams are named for the puma, cougar, or mountain lion Felis concolor, the best jumper among animals. It can jump to a height of 12.2 ft when leaving the ground at an angle of 44.2°. With what speed, in SI units, does it leave the ground ...

Algebra 2
A right triangle has a 45 degree angle. The hypotenuse is x and the leg is 8. Find the value of x.

math
The length of a rectangle is 8 less than twice the length. If the perimeter of the rectangle is 194 inches, find the dimensions of the rectangle.

Language Arts
Great! Thanks, Ms. Sue! I appreciate it.

Language Arts
Could it be C?

Language Arts
Simile has "like" in it. So, A?

Language Arts
I don't know if it is A or B for the first one... But, for some reason, I'm looking in at B.

Language Arts
Or, could it be A on the first one?

Language Arts
Which of the following answer choices contains a METAPHOR? a. His skin was sandpaper. b. The sun sparkled like a diamond. * c. Sh wanted to be like the birds and fly away. d. They felt free when they ran through the doors. What is a key characteristic of a refrain in poetry? a...

Algebra
Tell whether the lines for each pair of equations are parallel perpendicular or neither. Y= -2x + 4 -5+10y=5 I think perpendicular Next question is same kind- Y=-1/4x+10 -2x+8y=6 I think it's neither

Algebra
Match the equation with its graph -2/3 x - 1/4y = 1/3

Physics
A light ray in water is directed at the water surface at an angle of incidence at 40 degrees. Calculate the angle of refraction of the light ray at this surface.

Algebra
Flying against the wind, an airplane travels 28 km in 5 hours. Traveling with the win, the same plane travels 3760km in 4 hours. What is the rate of the plane and still air and what is the rate of the wind?

MATH
6 is one of the common multiples

Logarithms
Solve the following equations for x and check the solution using log. 2^6x-1 = 28 The answer is log56/6log2. Explain each step.

algebra
thank you you helped allot

algebra
thank you

aarays and expanded algorithm
How to get the answer to this problem 37 ×45

Lititure
How do u write a melcon and rikki-tikki-tavi as a bully

chemistry
49.5(0.506-x)(0.253-x)=4x^2 How to make it in quadratic equation Please help with step by step. thank u so much

find the area of the rectangle
84cm And 19cm?

Writing
I want to tell you that you should definitely check the link sent at the previous answer. That helped me too. Also what helped me a lot is an online writing service as Marvelous essay service. You may check it too

science
Do I need the comma after "months" here? Over the past 6 months, OvaScience has been continuously hammered down by short sellers.

chemistry
3A+2B+2C > 4D+2E 1) what is the rate of this reaction in terms of change of concentration of reactant B? - is it '1/2' ? 2) what is the rate of this reaction in terms of change of concentration of product D? please help

Computer
Finnaly more answers.

maths
What is the sum of 4x dollars and 4x cents. Express your answer in cents .

geomery
Triangle ABC, inscribed in a circle, has AB = 15 and BC = 25. A tangent to the circle is drawn at B, and a line through A parallel to this tangent intersects line BC at D. Find DC.

math
why is the answer to this problem? 5/3 -5/6

Anatomy & Physiology
A person is complaining of muscle weakness, numbness, paralysis and pain. Which disorder of the nervous systemis this person most likely experiencing?

Chemistry
I have no idea

  1. Pages:
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. Next>>