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Ted

Questions (207)

-1/9 + (-5/7)A : -3/8 B : -52/63 C : -6/7 D : -61/63
1. 1 answer
2. 152 views
what is 113.47 meters rounded to the nearest meter
1. 1 answer
2. 453 views
Which of the following are polar coordinates of the point whose rectangular coordinates are (-2, -2sqrt3)?a.) (4, pi/3) b.)
1. 1 answer
2. 598 views
Use fundamental identities and or the complementary angle theorem to find the value of the expression: tan 55°-cos 35°/sin
1. 1 answer
2. 1,864 views
Which of the following is not a fifth root of -1?a.) cos 36°+ i sin 36° b.) cos 252°+ i sin 252° c.) cos 108°+ i sin 108°
1. 1 answer
2. 411 views
Convert the following equation from an equation using polar coordinates to an equation using rectangular coordinates:
1. 1 answer
2. 882 views
Which of the following polar coordinates describes the same point as the point (5, -pi/6) given in polar coordinates?a.) (5,
1. 2 answers
2. 2,581 views
Solve the equation 3sin(2x)+3sinx=0 on the interval 0 ≤ pi <2pi. Give the sum of all the solutions.
1. 2 answers
2. 1,775 views
Determine the total number of solutions for the given equation: tan(2θ-pi/2)=1 on the interval [0, 2pi]
1. 1 answer
2. 618 views
A solid sphere of diameter 18cm is placed in an empty vertical cylindrical tank of diameter 24cm enough water is poured into the
1. 2 answers
2. 783 views
A bag contains 2 green balls and 1 red ball Two balls are randomly selected without replacement. What is the probability of
1. 1 answer
2. 1,157 views
Find the rule for the volume of a cylinder in terms of r only if the height is equal to its circumference.The surface area of a
1. 1 answer
2. 742 views
A rectangular fish tank has a base area of 0.3 m squared and height 30 cm and is filled with 80 L of water. Ten large fish with
1. 1 answer
2. 723 views
A page of text is analysed, and of the 150 words on it, 30 are nouns, 10 of which start with a vowel. Of the words that are not
1. 1 answer
2. 756 views
Sophie has randomly chosen a card from a standard deck and placed it in her pocket. She is going to randomly choose a second
1. 1 answer
2. 1,368 views
Solve the system of equations using substitution, elimination by addition, or augmentedmatrix methods (your choice). Show work.
1. 1 answer
2. 628 views
In a European country, 20% of the families have three children, 30% have two children,40% have one child, and 10% have no
1. 1 answer
2. 626 views
Find the probability of the independent event.If P (E) = 0.9, P (F ∣ E) = 0.36, and E and F are independent, find P (F)
1. 1 answer
2. 425 views
Gluon Inc. is considering the purchase of a new high pressure glueball. It can purchase the glueball for $110,000 and sell its
1. 1 answer
2. 1,340 views
in four games of basketball, michael scored 14, 9, 10 and 11 points. After one more game his mean was 12 points per game. how
1. 2 answers
2. 584 views
what is the tone in the poem "Home for the Aged" by Elizabeth Brewster? NEED HELP
1. 3 answers
2. 1,355 views
When the lights of an automobile are switched on, an ammeter in series with them reads 9.70 A and a voltmeter connected across
1. 0 answers
2. 650 views
a 60-kilogram astronaut floating in space outside the capsule throws his 0.50-kilogram hammer such that it moves with a speed of
1. 1 answer
2. 648 views
Because a concave lens cannot form a real image of a real object, it is difficult to measure its focal length precisely. One
1. 0 answers
2. 1,278 views
An object is placed in front of a concave mirror, 16.0 cm from the mirror's focal point. The image formed by the mirror is two
1. 0 answers
2. 634 views
A)A very narrow beam of white light is incident at 42.20° onto the top surface of a rectangular block of flint glass 12.6 cm
1. 0 answers
2. 780 views
Light is incident from air onto a flat transparent slab of material, at an angle of 62.2° with the normal. The reflected ray
1. 1 answer
2. 1,429 views
A) On a calm, bright day, you're scuba diving in a deep lake (n = 1.33), 6.00 m away from your sailboat in the horizontal
1. 0 answers
2. 640 views
The flywheel of a steam engine runs with a constant angular speed of 112 rev/ min . When steam is shut off, the friction of the
1. 1 answer
2. 687 views
A cyclist starts from rest and pedals such that the wheels of his bike have a constant angular acceleration. After 20.0 s, the
1. 1 answer
2. 1,701 views
A 1.80-kg block slides down a frictionless ramp.The top of the ramp is h1 = 1.21 m above the ground; the bottom of the ramp is
1. 1 answer
2. 1,059 views
Two blocks, each with a mass m = 0.400 kg, can slide without friction on a horizontal surface. Initially, block 1 is in motion
1. 0 answers
2. 509 views
A 33.3- kg block (m1) is on a horizontal surface, connected to a 5.1-kg block (m2) by a massless string. The pulley is massless
1. 0 answers
2. 591 views
An aqueous solution of HCl has a concentration of .160m and a density of 1.0691 g/mL. What is the concentration of HCl as
1. 0 answers
2. 483 views
In Duluth, Mn the average temperature is -13.10 deg C . How much ethonal glycol, C2H6O2, must be dissolved in 1.00 kg of water
1. 0 answers
2. 467 views
You exert a larger force on the cart than the cart exerts on you. T/FWhen you stop pushing, the cart will continue moving at the
1. 1 answer
2. 787 views
• If you use a cart with half the mass, you reach _______final speed.• If you use half the force, you reach ______ final
1. 1 answer
2. 1,679 views
Starting from the constant-acceleration kinematic equations, write a formula that gives xf in terms of t, xi, vf, and a.
1. 3 answers
2. 2,954 views
A person is standing at the top of a 58.0m tall hill. He stumbles and falls.As he rolls down the hill, magically friction has no
1. 2 answers
2. 667 views
A committee of five people is to be formed from six lawyers and seven teachers. Find the probability that none are lawyers.
1. 1 answer
2. 1,454 views
thirty animals are to be used in a medical experiment on diet deficiency: 3 male and 7 female rhesus monkeys, 6 male and 8
1. 1 answer
2. 562 views
There is a woman that has a 40% chance of being in Casper recently, a 30% chance of being in Denver and a 27% chance that she
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2. 332 views
There is a woman that has a 40% chance of being in Casper recently, a 30% chance of being in Denver and a 27% chance that she
1. 1 answer
2. 328 views
If you are given odds of 3 to 4 in favor of winning a bet, what is the probability of winning the bet?
1. 3 answers
2. 5,593 views
A 4000N block is moved up a slope that is 20 degrees to the horizontal. If the coefficient of friction is 0.3, find the force
1. 4 answers
2. 953 views
The graph below shows the expected monthly temperature of a certain city from April to August; the readings that correspond to
1. 1 answer
2. 750 views
To test H0:  = 80 versus H1:  < 80. a simple random sample of size n = 22 is obtained from a population that is known to
1. 1 answer
2. 684 views
Why would normal force be set to zero to calculate the minimum possible speed a rider can have at the top of a loop.Please i
1. 0 answers
2. 382 views
A rock dropped into a pond produces a wavethat takes 15 s to reach the opposite shore, 35.8 m away. The distance between
1. 1 answer
2. 1,869 views
A rocket cruising past earth at 0.800c shoots a bullet out the back door,opposite the rocket's motion,at 0.900c relative to the
1. 1 answer
2. 963 views
How much work is done pushing a wheel barrow full of cement 5.3m forward if a force of 500N is applied 20 degrees from the
1. 1 answer
2. 563 views
A stopper tied to the end of a string is swung in a horizontal circle. If a mass of the stopper is 13.0 g, and the string is
1. 1 answer
2. 2,824 views
A 90 kg parachutist in free fall has an acceleration of 6.8 m/s^2. What is the frictional force provided by air resistance when
1. 0 answers
2. 506 views
The amount of internal energy needed toraise the temperature of 0.26 kg of water by 0.3�C is 326.5 J. How fast must a 0.26 kg
1. 1 answer
2. 765 views
A worker drives a 0.460 kg spike into a rail tiewith a 2.16 kg sledgehammer. The hammer hits the spike with a speed of 64.5 m/s.
1. 2 answers
2. 807 views
What is the final equilibrium temperaturewhen 7 g of milk at 5�C is added to 117 g of coffee at 68�C? Assume the specific heats
1. 1 answer
2. 526 views
A basketball is thrown from the ground into the air at an angle of 30 degrees to the horizontal. If this object reaches a
1. 2 answers
2. 2,304 views
A basketball is thrown from the ground into the air at an angle of 30 degrees to the horizontal. If this object reaches a
1. 0 answers
2. 509 views
A 64.7 kg astronaut is on a space walk awayfrom the shuttle when her tether line breaks. She is able to throw her 14.1 kg oxygen
1. 1 answer
2. 791 views
An ore car of mass 37000 kg starts from restand rolls downhill on tracks from a mine. At the end of the tracks, 9.9 m lower
1. 0 answers
2. 562 views
The force required to stretch a Hooke’s-lawspring varies from 0 N to 63.5 N as we stretch the spring by moving one end 5.31 cm
1. 1 answer
2. 2,317 views
A pendulum bob is released from some initialheight such that the speed of the bob at the bottom of the swing is 1.5 m/s. The
1. 2 answers
2. 2,062 views
An outﬁelder throws a 1.05 kg baseball at aspeed of 99 m/s and an initial angle of 47.5 ◦ . What is the kinetic energy of
1. 1 answer
2. 459 views
A 19 g bullet is accelerated in a riﬂe barrel70.6 cm long to a speed of 506 m/s. Use the work-energy theorem to ﬁnd the
1. 1 answer
2. 1,260 views
Vector AB is a vector whose tail is at (-4,2) and whose head is at (-1,3).Calculate the magnitude of vector AB Determine the
1. 0 answers
2. 1,232 views
Vector AB is a vector whose tail is at (-4,2) and whose head is at (-1,3).Calculate the magnitude of vector AB Determine the
1. 2 answers
2. 4,870 views
If Julie needs 3 1/4 cups of oatmeal, how many 1/4 cups oatmeal will shw use?
1. 14 answers
2. 4,475 views
Posted by Ted on Wednesday, January 30, 2013 at 5:05pm.susan has $450. she uses 30% of her money to but a dress and 20% of the
1. 3 answers
2. 539 views
susan has $450. she uses 30% of her money to but a dress and 20% of the remainder to buy a pair of shoes. how much money does
1. 2 answers
2. 1,053 views
What's a good life in today's society? Some people think a good life is having money, family and friends. I do not know how else
1. 1 answer
2. 879 views
Hi. How does faith, charity and hope show leadership and service. I know the definitions to these words but i don't get how they
1. 1 answer
2. 1,083 views
Using oxidation numbers, explain why this reaction is not a redox reaction?CaCo3 --------> CaO + Co2 Please help.
1. 1 answer
2. 558 views
Hi. How to you solve 6.3*10^-4=4x^3 on a calculator? What buttons or functions do you press on the calculator to solve this
1. 1 answer
2. 462 views
Hi. How to you solve 6.3*10^-4=4x^3 on a calculator? What buttons or functions do you press on the calculator to solve this
1. 1 answer
2. 930 views
I have difficulty restating my thesis in a different way in my conclusion.my thesis: Ruby's sense of responsibility becomes her
1. 1 answer
2. 528 views
A group of students have volunteered for the student council car wash. Janet can wash a car in m minutes. Rodrigs can wash a car
1. 1 answer
2. 1,730 views
My teacher wants me to reword"moving out of the" in this sentence ''Instead of moving out of the marriage''. I cant think of
1. 7 answers
2. 1,147 views
What is the role of the church in relation to media today? How does media affect people morally and ethically? please help
1. 1 answer
2. 455 views
A 2 kg mass falls 40 m and buries itself into the ground 0.40 m. Find: a) How much work was done by gravity, b) How much
1. 0 answers
2. 380 views
A puncture in the tubing of a refrigerator can cause severe frosbite as chloroethane C2H5Cl, vaporizes. Use this thermochemical
1. 2 answers
2. 401 views
A puncture in the tubing of a refrigerator can cause severe frosbite as chloroethane C2H5Cl, vaporizes. Use this thermochemical
1. 1 answer
2. 390 views
9/5
1. 1 answer
2. 279 views
solve the inequality3(2x+4)greater than and equal to 2x
1. 1 answer
2. 416 views
A luggage carousel at an airport has the form of a section of a large cone, steadily rotating about its vertical axis. Its
1. 0 answers
2. 504 views
At what temp do hydrogen molecules, H2, have the same rms speed as nitrogen molecules, N2, at 455 C? At what temperature do
1. 0 answers
2. 1,407 views
At what temp do hydrogen molecules, H2, have the same rms speed as nitrogen molecules, N2, at 455 C? At what temperature do
1. 2 answers
2. 960 views
A stone is thrown straight up at 8.99 m/s. What is the stone's acceleration in m/s/s at the top of its rise?
1. 0 answers
2. 373 views
A stone is thrown straight up. To reach a height of 6.49 m above its release point, what must its initial speed be in m/s?
1. 1 answer
2. 373 views
A soccer player kicks the ball toward a goal that is 29.2 m in front of him. The ball leaves his foot at a speed of 19.1 m/s and
1. 0 answers
2. 496 views
A denaturation/renaturation (similar to the one carried out by Anfinsen with ribonuclease) experiment was carried out using
1. 0 answers
2. 949 views
The area is bounded by y= x^3, x= 2 is rotated around the x-axis. Find the volume using calculus.
1. 3 answers
2. 591 views
Assuming that Big Foot's bones are made of the ordinary ape, do you think his bones can support his weight? why or why not?
1. 1 answer
2. 387 views
A student, crazed by final exams, uses a force of magnitude 86 N and angle θ = 61° to push a 5.2 kg block across the ceiling
1. 1 answer
2. 1,286 views
A 110 g hockey puck sent sliding over ice is stopped in 14.9 m by the frictional force on it from the ice. (a) If its initial
1. 1 answer
2. 670 views
Two blocks, of weights 2.8 N and 5.5 N, are connected by a massless string and slide down a 47° inclined plane. The coefficient
1. 0 answers
2. 461 views
A loaded penguin sled weighing 66 N rests on a plane inclined at angle θ = 24° to the horizontal (Fig. 6-23). Between the sled
1. 0 answers
2. 681 views
In Fig. 6-21, a slide-loving pig slides down a certain 37° slide in twice the time it would take to slide down a frictionless
1. 2 answers
2. 2,332 views
A ball is thrown upward from the ground with an initial speed of 26.7 m/s; at the same instant, a ball is dropped from a
1. 2 answers
2. 1,093 views
Losing your bags during airline travel is not all that uncommon. Recently, an airline was cited for losing customers' baggage 8%
1. 1 answer
2. 982 views
If you add acid or base to water how will the pH change.
1. 1 answer
2. 891 views

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