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CJ

Questions and answers by CJ

Questions (147)

what is 90 plus 2 divided 7.89?Try this on your calculator... 11111111 times 111111111 Neat.
1. 1 answer
2. 472 views
How many grams of Fe is needed to make 8 g of FeO3.I was given Fe + H2O ---> H2 + FeO3. I balanced it: 2Fe +3H2O -----> 3H2
1. 1 answer
2. 454 views
A 2.50g bullet, traveling at a speed of 425m/s, strikes the wooden block of a ballistic pendulum. The block has a mass of 270g(a
1. 4 answers
2. 5,609 views
The warranty on a new tire says that an automobile can travel for a distance of 92,000km before the tire wears out. The radius
1. 3 answers
2. 1,634 views
an automobile tire has a radius of 0.350M, and its center forward with a liner speed of v=13.0m/s.(a) Determine the angular
1. 2 answers
2. 604 views
A ceiling fan has two different angular speed settings: 1 = 475 rev/min and 2 = 170 rev/min. What is the ratio a1/a2 of the
1. 1 answer
2. 981 views
A bowling ball encounters a 0.76m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore frictional
1. 1 answer
2. 702 views
A woman stands at the center of a platform. The woman and the platform rotate with an angular speed of 4.00 rad/s. Friction is
1. 1 answer
2. 779 views
A rotating door is made from four rectangular glass panes. The mass of each pane is 90kg. A person pushes on the outer edge of
1. 4 answers
2. 624 views
lunch tray is being held in one hand, as the drawing illustrates. The mass of the tray itself is 0.240 kg, and its center of
1. 1 answer
2. 705 views
How do I convert from kg to Newtons?You cant. kg is mass, newtons is force. If a mass is in a gravity field, then force= mass*g
1. 1 answer
2. 441 views
when an object of mass M1 is hung on a vertical spring and set vertical simple harmonic motion, its frequency is 12 Hz. When
1. 1 answer
2. 658 views
A water bed has dimensions of 1.83mx1.86mx.238m. The floor of the bed room will tolerate an additional weight of no more than
1. 1 answer
2. 616 views
A glass bottle of soda is sealed with a screw cap. The absolute pressure of the carbon dioxide inside the bottle is 1.80
1. 3 answers
2. 3,527 views
A glass bottle of soda is sealed with a screw cap. The absolute pressure of the carbon dioxide inside the bottle is 1.80
1. 2 answers
2. 693 views
Good morning. I know I have posted this question several times but I am still getting the wrong answer. So I decided to repost
1. 1 answer
2. 914 views
A wave traveling in the +x direction has an amplitude of 0.50 m, a speed of 5.7 m/s, and a frequency of 18 Hz. Write the
1. 1 answer
2. 1,106 views
How has Christianity, a faith based on the teachings of one text (the Bible), divided into so many denominations?There are many
1. 1 answer
2. 1,180 views
What events and figures have shaped the development of Islam in the United States?These sites explain how Islam has developed in
1. 1 answer
2. 655 views
you are about to take a test that contain questions of type A worth 4 points and of type B worth 7 points. You must answer at
1. 5 answers
2. 4,307 views
Simplify: (5x2y3z)(6xyz2)
1. 1 answer
2. 313 views
Simplify:35xy4z2 _______ 7y2z
1. 1 answer
2. 310 views
I am just curious if you know of any one I could submit an English Essay to. It is less than one page and I need someone to
1. 9 answers
2. 618 views
if you add one number divisible by n and one number not divisble by n will the result be divisible by n?and.. if you add two
1. 1 answer
2. 472 views
I need help with this problem:50.0 mL of 4.4 g/L AgNO3 is added to a coffee-cup calorimeter containing 50.0 mL of 4.4 g/L NaI,
1. 4 answers
2. 886 views
the area of a cirlce is 460ydsq. Find the radiusbof the circle.
1. 2 answers
2. 1,091 views
Find the limit of sin4x/(sqrt(x)) as it approaches positive infinity.
1. 1 answer
2. 425 views
I can find anything on these questions I need to answer to pass year nine. My teacher said he doesn't matter where the answers
1. 1 answer
2. 335 views
I'm having trouble understanding which formula to use to answer this question. What is the apparent weight of an astronaut
1. 1 answer
2. 428 views
k=1/2mv^2, for mV= h/e v- E/e, for e Please help.
1. 1 answer
2. 306 views
solve:I=Prt, for P
1. 3 answers
2. 3,021 views
Sally and a partner holds the ends of a spring 4 meters apart. There are 5 nodes in the standing wave produced. Sally moves her
1. 2 answers
2. 931 views
Sally and a partner holds the ends of a spring 4 meters apart. There are 5 nodes in the standing wave produced. Sally moves her
1. 4 answers
2. 1,743 views
Follow on the Sall Sue question earlier. What frequency would be required for sally and her cheerful and hard-wroking partner to
1. 2 answers
2. 586 views
The mean IQ among members of a club is 118 with a standard deviation of 9.46. What percentage of the members had IQ scores of
1. 3 answers
2. 1,019 views
I think I know how to answer the following question IF I assume that the distribution is normal - however, since the question
1. 2 answers
2. 504 views
how to solve this problem. Completing the square. Find the value of a such that u^2-8u+a is a perfect square
1. 3 answers
2. 463 views
Hello...I need help with the following question, I have the answer but am not sure how to solve it. Any help would be greatly
1. 1 answer
2. 388 views
Write and simplify an expression for the perimeter of the triangle. side A-4x+3, side B-6X and side C-3x-1.Thank you!
1. 1 answer
2. 193 views
Write and simplify an expression for the perimeter of the rectangle. side A=x+6 Side B=4x-5.Thank you!
1. 3 answers
2. 536 views
Write and simplify an expression for the perimeter of the triangle. side A)3x, side B) 5x-4 and side C)2x+5.Thank you!
1. 1 answer
2. 229 views
A deep mountain valley is separated by two vertical cliffs. One cliff is 600 meters high and the other is 400 meters high. A
1. 2 answers
2. 589 views
A deep mountain valley is separated by two vertical cliffs. One cliff is 600 meters high and the other is 400 meters high. A
1. 2 answers
2. 602 views
what events or objects were studied in Hubble's paper A RELATION BETWEEN DISTANCE AND RADIAL VELOCITY AMONG EXTRA-GALACTIC
1. 1 answer
2. 369 views
A car starts from rest and accelerates uniformly over a time of 6.5 seconds for a distance of 150 m. Determine the acceleration
1. 3 answers
2. 1,169 views
Can an adult male be rescued from a fall by tying a rope to a car's axle?
1. 1 answer
2. 316 views
I know the answer to the question, but don't know how to write it out.What is the percentage of increase from 58,000 to 89,000.
1. 1 answer
2. 347 views
Three masses are arranged in the (x,y) plane. The X and Y units are meters4kg at (-1,5 3kg at (1,1) 5kg at (0,0) What is the
1. 5 answers
2. 1,469 views
what is meant by the term utility and how does it relate to purposeful behavior?
1. 1 answer
2. 511 views
Write at least two equivalent fractions for each whole numberCan I do this with the number zero?
1. 4 answers
2. 535 views
in volley ball is it an illegal hit if you hit it underhand while ball is in play
1. 1 answer
2. 346 views
0.4/2.4=f/6Dont know how to solve please explain so i can know thank u
1. 5 answers
2. 186 views
3/2(4x-6)-x(3-x)=1/3x(3x-6)
1. 1 answer
2. 327 views
Determine sin x - tan x - sin x=0 for 0 ≤ x < 360°
1. 1 answer
2. 367 views
Find the area of a sector, given a central angle of 240° and a radius of 15 cm. Round your answer to the nearest tenth please.
1. 2 answers
2. 831 views
Solve △ABC, given a = 4.4, b = 9.1, and c = 5.7. Round your answer to the nearest tenth.
1. 2 answers
2. 779 views
Find the length of the intercepted arc, given a central angle of 3pi/5 and a radius of 4.5 cm. Round your answer to the nearest
1. 3 answers
2. 1,029 views
1. Solve: 2 cos² x - 3 cos x + 1 = 0 for 0 ≤ x < 2pi.2. Solve: 2 sin x - 1 = 0 for 0° ≤ x < 360° 3. Solve: sin² x =
1. 2 answers
2. 532 views
Given sinθ=0.76, find θ in degrees to the nearest tenth.
1. 1 answer
2. 514 views
Convert 2pi/3 radians into degrees.
1. 2 answers
2. 513 views
The average temperature, in °F, of City B is given by the equation:y=19.5sin(pi/6t-2.06)+62 , where t is the time in months and
1. 3 answers
2. 624 views
Find the exact value of cosθ if sinθ=-2/3, and θis in standard position with its terminal side in Quadrant IV.
1. 3 answers
2. 695 views
If sinθ=1/5 and θis in Quadrant I, find the exact value of 2θ.
1. 2 answers
2. 517 views
Given sinθ=0.76, find θ in degrees to the nearest tenth.
1. 2 answers
2. 663 views
Find two exact values of sin(cosˉ¹√5/6)
1. 1 answer
2. 413 views
Verify the identity: cos x + sin x tan x = sec x.
1. 2 answers
2. 527 views
Given sine of alpha=2/3 and cosine of alpha is less than zero, find the exact value of the other five trigonometric functions.
1. 2 answers
2. 723 views
The average temperature, in °F, for Atlanta, GA is modeled by the sinusoidal functiony = 18.25 sin(pi/6 t - 2.09) + 61.15 where
1. 3 answers
2. 1,083 views
Using the same equation from problem 1, what is the average temperature in Atlanta, GA, for the month of June?equation from #1
1. 2 answers
2. 610 views
The following is a table for the maximum temperature per month, for Boulder, COMonth|° F Jan:45.1 Feb:48.2 Mar:53.8 Apr:62.8
1. 3 answers
2. 606 views
What is the angular displacement of 1.6 revolutions? Round to the nearest tenth.
1. 5 answers
2. 527 views
Find the angular velocity of an object, rotating on a circular object, moving through 9.7 revolutions in 11 seconds. Express
1. 2 answers
2. 1,115 views
Find the length of the intercepted arc with radius 2.5 cm and a central angle of 95degrees. Round your answer to the nearest
1. 2 answers
2. 898 views
Find the area of the sector, given a central angle of 55degrees and a radius of 5.7 in. Round your answer to the nearest tenth.
1. 2 answers
2. 1,179 views
Find the radius of a circle with a central angle of pi/7 and a length of the intercepted arc equal to 7.7 cm. Round your answer
1. 4 answers
2. 530 views
Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.
1. 1 answer
2. 412 views
How do you find the height of a triangle ?
1. 3 answers
2. 306 views
Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.
1. 1 answer
2. 419 views
Find the radius of a circle with a central angle of pi/7 and a length of the intercepted arc equal to 7.7 cm. Round your answer
1. 2 answers
2. 589 views
Solve: 2 cos2 x - 3 cos x + 1 = 0 for 0 is less than or equal to x is less than 2pi.
1. 1 answer
2. 370 views
Solve: 2 sin x - 1 = 0 for 0 degrees is less than or equal to x is less than 360 degrees.
1. 3 answers
2. 1,842 views
Solve: sin2 x = cos2 x for 0 degrees is less than or equal to x is less than 360 degrees.
1. 2 answers
2. 560 views
Solve: sin x - 2sin x cos x = 0 for 0 is less than or equal to x is less than 2pi.
1. 1 answer
2. 1,082 views
Factorize the following :x4-x2-6 HELP!!!!!!
1. 1 answer
2. 390 views
Factorize the following :x4-x2-6 HELP!!!!!!
1. 4 answers
2. 393 views
PLEASE HELP ME! i have this homework due tomorrow and i only have 1 question left and am sooo desperate for an answer:The
1. 5 answers
2. 621 views
Write a polynomial of the smallest degree with roots 1, -3, and 4.
1. 1 answer
2. 393 views
A waffle cone has a width of 7.6 cm and height of 15.2cm and a chocolate coating that is 2mm thick. What is the volume of the
1. 2 answers
2. 931 views
Draw two line segments connecting angles of the hexagon to make four quadrilaterals...
1. 3 answers
2. 589 views
What is the degree of the following polynomial equation?(x+9)(x-5)(x+2)=0 1. 2 2. 3 3. 4 4. 5
1. 1 answer
2. 323 views
Explain why the simultaneous equations y=1/2x+2 and 2y-x:4 have an infinite number of solutions. What is diffrent about these
1. 3 answers
2. 1,047 views
At what constant, continuous annual rate should you deposit money into an account if you want to have $1,000,000 in 25 years?
1. 6 answers
2. 1,103 views
In formula for where ferenheit and celsius converge (T = T x 9/5 +32); what is the logic that T x 9/5 = T + T = 4/5?
1. 1 answer
2. 410 views
Why are government policies on immigration so controversial?
1. 1 answer
2. 359 views
If the length of the sides of two similar triangles are in the ratio 3:4, what is the ratio of the lengths of a pair of
1. 3 answers
2. 752 views
Brett wants to use 40 feet of twine to mark off a rectangular area in his yard for a garden. What are the length and width for a
1. 1 answer
2. 391 views
Sulfuric acid (H2SO4) is prepared commercially from elemental sulfur using the contact process. In a typical sequence of
1. 4 answers
2. 759 views
For the reaction? ZnS + ? O2 →? ZnO+? SO2 , what is the maximum amount of ZnO which could be formed from 14.06 g of ZnS and
1. 2 answers
2. 751 views
In the reaction below, 16 g of H2S with excess O2 produced 8 g of sulfur.? H2S + ? O2 → ? S + ? H2O . What is the percent
1. 5 answers
2. 2,547 views
1)one number is four more than a second number. Twice the second is three more than the first. Find the numbers.2)four times one
1. 2 answers
2. 752 views

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