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The parametric equations x= 4 − 5 sin 3t and y = 2 + 5 cos 3t for 0 ≤ t ≤ 𝜋/6 represent a curve C.Find the length L of
1. 2 answers
2. 147 views
Consider the curve C parametrized byx = cos (8t) and y = sin (8t), for 0 ≤ t ≤ 𝜋/8 and traversed by a particle moving
1. 3 answers
2. 184 views
Consider the curve C parametrized byx = (t^2 + 1)/(t^2 − 1) and y = (2t)/(t^2 − 1) for all t in (−∞, −1 ) ∪ (−1,
1. 1 answer
2. 128 views
Let f (x) = cos x and g(x) = sin x. Find the center of gravity (x, y) of the region between the graphs of f and g on [0,
1. 3 answers
2. 157 views
Let C be parametrized by x = 3 sin2 t and y = 3 sin t cos t for 0 ≤ t ≤ 𝜋/2. Find the length L of C.L =
1. 2 answers
2. 168 views
A swimming pool has the shape of a right circular cylinder with radius 13 feet and height 10 feet. Suppose that the pool is full
1. 2 answers
2. 174 views
A rocket lifts off the pad at Cape Canaveral. According to Newton's Law of Gravitation, the force of gravity on the rocket is
1. 0 answers
2. 346 views
A region R is bounded by y= sqrt(x) and y = x^6. Set up the integral to find the volume V of the solid formed by rotating R
1. 2 answers
2. 136 views
Suppose a person pushes thumbtack that is 1/3 centimeter long into a bulletin board, and the force (in dynes) exerted when the
1. 1 answer
2. 265 views
Use the result of Exercise 37 in Section 6.1 (or the exercise above if your answer is correct) to find the volume V of the solid
1. 2 answers
2. 172 views
Let f (x) = 6x and g(x) = x^2 + 3x, and let R be the bounded region between the graphs of f and g. Set up an integral to find
1. 2 answers
2. 159 views
The base of a solid is a circle with radius 6. Each cross section perpendicular to a fixed diameter of the base is semicircular.
1. 2 answers
2. 136 views
19 more than Mabel’s savings is 49
1. 1 answer
2. 118 views
The perimeter of mc008-2.jpgABCD is 48 in. and AB is 5 in. less than BC. Find the length of all four sides of mc008-2.jpgABCD.
1. 1 answer
2. 93 views
The notion of ___________________ spreading into many countries terrified the Democracies of the west.
1. 0 answers
2. 173 views
After _________________________ surrendered, ending World War II in Europe, the allies split this country into different zones
1. 0 answers
2. 196 views
If a snail can move 3/10 of a meter every 1/12 hour, what is the speed of the snail in meters per hour?
1. 1 answer
2. 286 views
3/10*12=36/10=3 3/5 m/hr
1. 1 answer
2. 151 views
PT=3x+3 and TQ=5x−9 T is the midpoint of PQ
1. 2 answers
2. 251 views
A group of hikers is descending a mountain at the rate of 400 feet per hour. What is the change in the elevation of the hikers
1. 2 answers
2. 539 views
write an interger that descibes the situation a football player caught a 57 yard pass
1. 1 answer
2. 468 views
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature for the day is 70
1. 0 answers
2. 321 views
Continuing climate change is likely to make many ecosystems become more arid. PREDICT whether C3 or C4 crops will do better in
1. 0 answers
2. 256 views
Joan and her brother Justin left a hotel at the same time, driving in opposite directions at constant rates. After traveling for
1. 1 answer
2. 761 views
olewij
1. 1 answer
2. 255 views
How is soil on the surface of the Earth related to bedrock?
1. 11 answers
2. 830 views
A scuba diver dove from the surface of the ocean to an elevation of −899 10 feet at a rate of −24 feet per minute. After
1. 0 answers
2. 494 views
A bag contains 7 red marbles, 6 white marbles, and 10 blue marbles. You draw 4 marbles out at random, without replacement. What
1. 1 answer
2. 4,976 views
For v=<2,-2sqrt(3)>, why do you do 360 + (-60) to get the directional angle = 300 degrees.I did arctan = -2sqrt(3)/2 = -60
1. 1 answer
2. 385 views
For x+3/x-4 is less than or equal to 0, why is the interval notation [3,4)?
1. 1 answer
2. 585 views
A 25.0 mL sample of 0.100 M propanoic acid (HC3H5O2, Ka = 1.3 ✕ 10-5) is titrated with 0.100 M KOH solution. after the
1. 2 answers
2. 1,685 views
In which of the following types of publications are you least likely to find a personal essay?A journal focusing on a particular
1. 3 answers
2. 458 views
Which of the following was a result of the Great Depression?A. widespread unemployment B. inflation C. a surplus of food
1. 9 answers
2. 2,468 views
does anyone speak spanish please help. my friend has a question
1. 3 answers
2. 514 views
an ocean grapher measured a set of waves during a storm and modelled the vertical displacement of waves using
1. 1 answer
2. 546 views
In what way do the people actually "disappear" in "The City Is So Big"
1. 2 answers
2. 1,013 views
Sound travels at 343 meters per second. You measured 3 seconds for sound travel from place A to place B. What is the distance
1. 3 answers
2. 964 views
write a program that will calculate the average of the total marks scored by 10 students, if each student has done 4 exams.
1. 1 answer
2. 1,317 views
Which theory do most scientists believe about the first inhabitants of North America?A. They walked across the frozen Bering
1. 58 answers
2. 16,870 views
Which of the following statements best describes a negative consequence of the federal government's use of credit?A. The
1. 6 answers
2. 1,465 views
The author of a book on running receives a royalty of 75¢ per copy sold. If the royalty rate is 12% of the single copy price,
1. 1 answer
2. 615 views
A supertanker (mass = 1.57E+8 kg) is moving with a constant velocity. Its engines generate a forward thrust of 7.47E+5 N.
1. 2 answers
2. 2,738 views
Sphere 1 has surface area A1 and volume V1 and sphere 2 has surface area A2 and volume V2. If the radius of sphere 2 is 3.53
1. 1 answer
2. 1,729 views
Farmer Brown is making a garden 14.5 feet long and 8.75 feet wide. He puts up a fence 23.5 feet long and 17.75 feet wide. What
1. 1 answer
2. 634 views
Tingles wants to sell potato chips in cylindrical containers. So the chips do not fall out the containers will have ends. To be
1. 1 answer
2. 582 views
What is the average useful power output of a person who does 5.50×106 J of useful work in 6.50 h?Working at this rate, how long
1. 1 answer
2. 783 views
I am prepping for a mid-term. A deep sea diving bell is lowered at a rate (constant). After 10 min, the bell is at a depth of
1. 1 answer
2. 554 views
What fraction of a square mile is a field that is 1/2 mile long and 1/4 mile wide?
1. 2 answers
2. 1,417 views
ell whether each equation has one solution, zero solutions or infinite solutions5(x-3)+6=4x+3
1. 1 answer
2. 384 views
tell whether each equation has one solution, zero solutions or infinite solutions5(x-3)+6=5x-9
1. 1 answer
2. 1,509 views
What is the approximate ratio of the solubility of CaSO4 (Ksp = 2.4 x 10−5) in pure water to the solubility of CaSO4 in 0.10 M
1. 3 answers
2. 1,810 views
Calculate how many moles of Na2S2O3 must be added to dissolve 0.020 mol AgBr in 1.0 L of water at 25°C (assume constant
1. 1 answer
2. 1,991 views
how did america's economy change after the civil war.
1. 1 answer
2. 457 views
How do scientists explain the fact that some landforms that are far apartand separated by oceans appear to be related?
1. 9 answers
2. 1,582 views
Consider two equally sized balloons at room temperature, one filled with oxygen gas and one filled with an unknown gas. If the
1. 1 answer
2. 1,064 views
If 2.00 g of element G reacts with 5.00 g of element M to produce 7.00 g of a compound with the formula G3M2, what is the atomic
1. 2 answers
2. 513 views
How do I solved=ut+(1/2)at^2
1. 1 answer
2. 360 views
a board of 4 members is going to be formed from the 30 students of a class. The board is formed of a president a vice president
1. 1 answer
2. 461 views
four girls bought each a swimsuit and decided to borrow among themselves. How many possible ways can they dress up knowing that
1. 1 answer
2. 523 views
an anagram of a word is obtained by permuting its letters.a-how many anagrams does the word "MAIRE" have b-Same question for the
1. 1 answer
2. 573 views
in how many different ways can 3 boys and 2 girls sit on a bench?in how many different ways can they sit knowing that the boys
1. 1 answer
2. 705 views
find the probability of correctly answering the first 2 questions on a multiple choice test if random guesses are made and each
1. 2 answers
2. 1,163 views
will a heavy metal spring launch a baseball 7 feet in the air with 5 pounds of preasure
1. 1 answer
2. 341 views
Math club purchased 3 adult tickets and 12 student tickets for $262.50. Physics club purchased 4 adult tickets and 8 student
1. 2 answers
2. 475 views
A bird watcher meanders through the woods, walking 0.744 km due east, 0.925 km due south, and 3.97 km in a direction 18.3 °
1. 1 answer
2. 697 views
A bird watcher meanders through the woods, walking 0.544 km due east, 0.925 km due south, and 3.58 km in a direction 17.3 °
1. 1 answer
2. 663 views
A rectangular piece of carpet is place on the floor of a rectangular room leaving a margin of 1 m around it. If the room
1. 5 answers
2. 2,270 views
Two horizontal forces, and , are acting on a box, but only is shown in the drawing. can point either to the right or to the
1. 2 answers
2. 809 views
You set your stationary bike on a high 80 N friction like resistive force and cycle for 30 min at speed of 8 m/s. Your body is
1. 1 answer
2. 1,215 views
A fire engine must lift 30 kg of water a vertical distance of 20 m each second. What is the amount of power needed for the water
1. 2 answers
2. 3,364 views
A 75 kg bobsled is pushed along a horizontal surface by two athletes. After the bobsled is pushed a distance of 4.5 m starting
1. 1 answer
2. 1,216 views
A student wearing frictionless in-line skates on a horizontal surface is pushed, from rest, by a friend with a constant force of
1. 2 answers
2. 1,170 views
How much work is required to accelerate a 0.145 kg baseball from rest, to a speed of 38.7 m/s?
1. 0 answers
2. 410 views
10.55 Consider an experiment with four groups, with eightvalues in each. For the ANOVA summary table below, fill in all the
1. 0 answers
2. 1,127 views
A bee flies to a flower 583 m due south of itshive. The bee’s speed in still air is 0.68 m/s, and there is a wind blowing
1. 0 answers
2. 874 views
Rubber tires and wet blacktop have a coefficient of kinetic friction of 0.5. A pickup truck with a mass 750 kg traveling 30.0
1. 0 answers
2. 921 views
A plane cruising at 247 m/s accelerates at28 m/s 2 for 8.7 s.How far will it have traveled in that time?
1. 2 answers
2. 786 views
A car travels in a straight line for 2.8 h at aconstant speed of 53 km/h . What is its acceleration? Answer in units of m/s 2
1. 2 answers
2. 1,056 views
Water is poured into a container that has a leak.Themass 'm' of the water is given as a function of time 't' by, m=5t^0.8 -3t +
1. 1 answer
2. 1,501 views
The space shuttle, with an initial mass M = 2.41×106 kg, is launched from the surface of the earth with an initial net
1. 0 answers
2. 711 views
A space probe is to be put into a circular orbit of radius 42.00 km about an asteroid. At this radius the magnitude of the
1. 1 answer
2. 626 views
Student Calamity reported a final yield of 50%. List four things she might have done wrong to account for this yield.Student
1. 2 answers
2. 609 views
you have not added enough sodium hydroxide to precipitate all the copper as copper hydroxide. How could you tell that not all
1. 1 answer
2. 585 views
A mass m = 6.0 kg is attached to the lower end of a massless string of length L = 27.0 cm. The upper end of the string is held
1. 0 answers
2. 819 views
have 10 boxes each box contains 50 peices and we're selling for 8.00 per box. If I had to repackag them into 20 pieces each how
1. 1 answer
2. 353 views
If a took a loan of $12000 for one year at 9.5% simple interest what would be my interest
1. 1 answer
2. 440 views
if a took a loan out for $12000 for one year at 10% simple discount what would be my interest
1. 1 answer
2. 361 views
In your own words, describe the meaning of marginal cost. You normally buy a crate of wine for $75. One crate has 6 bottles of
1. 1 answer
2. 806 views
if there is no oxygen for the glycolysis what process would that be called?
1. 0 answers
2. 370 views
If you have 10 lbs shrimp at 80 deg F how much ice would it take to reach 50 deg F in 10 minutes?
1. 1 answer
2. 996 views
5x-10/5 ?
1. 1 answer
2. 558 views
−(6p + 12
1. 1 answer
2. 240 views
A block is pressed against a vertical wall by a force , as the drawing shows. This force can either push the block upward at a
1. 1 answer
2. 1,482 views
Geosynchronous communications satellites are placed in a circular orbit that is 3.59 107m above the surface of the earth. What
1. 1 answer
2. 978 views
In two successive chess moves, a player first moves his queen four squares forward, then moves the queen three steps to the left
1. 0 answers
2. 365 views
In two successive chess moves, a player first moves his queen four squares forward, then moves the queen three steps to the left
1. 0 answers
2. 348 views
In two successive chess moves, a player first moves his queen four squares forward, then moves the queen three steps to the left
1. 0 answers
2. 402 views
In two successive chess moves, a player first moves his queen four squares forward, then moves the queen three steps to the left
1. 0 answers
2. 370 views
How many milliliters of 1.0 M NaOH must be added to 200. mL of 0.10 M NaH2PO4 to makea buffer solution with a pH of 7.50? (5
1. 0 answers
2. 1,038 views
A boy is pushing his sled up a snowy slope. The sled has a mass of 20.4 kg and weighs 200 N. The boy pushes with a constant
1. 3 answers
2. 2,218 views

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