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There are 52 white keys on a piano. The lowest key is A. The keys are designated A, B, C, D, E, F, and G in succession, and then
1. 3 answers
2. 1,188 views
Ann takes 2 hours to wash her car. When her sister helps her, the job takes 5/4 hours. How long does it take Ann's sister to
1. 1 answer
2. 490 views
One of the formulas to find the area of a triangle is a = r*s. Where the r is the radius of the circle inscribed the triangle,
1. 1 answer
2. 470 views
IF the LCM of two numbers a and b is 40, what is the LCM of 7a^2 and 7b^2?
1. 1 answer
2. 1,156 views
When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the
1. 0 answers
2. 641 views
Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the
1. 0 answers
2. 741 views
In a quarter-mile drag race, two cars start simultaneously from rest, and each accelerates at a constant rate until it either
1. 1 answer
2. 1,493 views
Only two forces act on an object (mass=3.19 kg), as in the drawing. Find (a) the magnitude and (b) the direction (relative to
1. 1 answer
2. 927 views
An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x
1. 0 answers
2. 524 views
Two forces and are applied to an object whose mass is 5.75 kg. The larger force is . When both forces point due east, the
1. 1 answer
2. 694 views
Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test,
1. 1 answer
2. 878 views
A person in a kayak starts paddling, and it accelerates from 0 to 0.614 m/s in a distance of 0.372 m. If the combined mass of
1. 1 answer
2. 500 views
In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 46.6
1. 1 answer
2. 581 views
Given that the roots of the equation 3x^2+x+2=0 are a and b, show that 27a^4=11a+10.
1. 1 answer
2. 666 views
what metal is it if, it is 7.14g/mL => Cast Iron.
1. 1 answer
2. 405 views
6. The bending moment (M) along a beam is M = WLx/2 -Wx2/2 kNm where x is the distance of a beam length L from the left hand
1. 4 answers
2. 768 views
A steel factory wishes to make a cylindrical container, of thin metal, to hold 100cm³, using the least possible area of metal.
1. 1 answer
2. 756 views
Please help!!x^2+y^2+6y+5=0 x^2+y^2-2x-8=0
1. 2 answers
2. 300 views
A typical candy bar contains 300 kilo-calories of energy. if all the energy released by eating the candy bar could be used to do
1. 1 answer
2. 896 views
Tom used 5/8 yard of ribbon to tie weights on the tail of his kite. He cut the length of ribbon in equal pieces that were 1/12
1. 3 answers
2. 1,758 views
Three-dimensional tic-tac-toe can be played on three arrays of 3x3 lattice points. To win, three points in a line must be
1. 10 answers
2. 2,943 views
Nonverbal communication includesA.posture B.clapping C.eye contact D.all of the above
1. 3 answers
2. 652 views
All students in Peter's class have $1.05, consisting of nickels and/or dimes and/or quarters. Each student has a different
1. 22 answers
2. 4,142 views
All students in Peter's class have $1.05, consisting of nickels and/or dimes and/or quarters. Each student has a different
1. 0 answers
2. 877 views
How does Hamlet show his Heroism?
1. 1 answer
2. 395 views
You are standing 5 feet from one speaker and 14 feet from another. Both speakers are producing the same sound. If the combined
1. 1 answer
2. 732 views
Pure helium is closed into cylinder with a movable piston. The initial volume, pressure, and temperature of the gas are 15 dm3,
1. 1 answer
2. 640 views
A police car siren emits a sound wave with a frequency fs = 400 Hz and it is moving toward the wall at 25 /m/s. What frequency
1. 2 answers
2. 1,540 views
A ball with a mass of 4 kg and a velocity of 10 m/s strikes an 8kg ball that is initially at rest. If the collision is perfectly
1. 0 answers
2. 524 views
A train leaves San Diego at 1:00 PM. A second train leaves the same city in the same direction at 4:00 PM. The second train
1. 1 answer
2. 1,609 views
a farmer fences off a small.rectangular plot of land thay is 60 feet by 100 feet. within that area, a garden is planted and
1. 1 answer
2. 557 views
How can x-8 be modeled by being described as a situation?Answer:8x
1. 2 answers
2. 442 views
Problem 10-32 Project Evaluation [LO1]Aria Acoustics, Inc. (AAI), projects unit sales for a new seven-octave voice emulation
1. 1 answer
2. 1,036 views
A bag contains 5 red, 7 yellow, 8 green, and 3 blue markers. What is the p(two green markers) will be chosen if the markers are
1. 2 answers
2. 816 views
A snowball is melting at the rate of 2 inches per hour. How fast is the surface area of the snowball changing at the instant the
1. 2 answers
2. 4,381 views
Which one of the following actions would make the maxima in the interference pattern from a grating move closer together?A.Incre
1. 0 answers
2. 923 views
Q1.With the aid of a diagram discuss the marketing systemsQ2.Discuss the problems that occur when universities and industry form
1. 4 answers
2. 592 views
Check my work & answer please. I need to make sure I am able to do this type of problem correctly.A typical car engine produces
1. 1 answer
2. 1,546 views
4. A typical car engine produces 44,000 kJ of heat in an hour. The cooling system has a capacity of 8.40 L and is filled with a
1. 1 answer
2. 2,240 views
A 1100- kg car collides with a 1400- kg car that was initially at rest at the origin of an x-y coordinate system. After the
1. 1 answer
2. 656 views
Suppose that y=f(x) = sqrt(2x), x>=0Find a c > 0 such that the tangent line to the curve y = f(x) at x = c has the same slope as
1. 2 answers
2. 3,513 views
Let f(x) = (x+3)^3 + 2.The graph of the inverse function y = f^–1(x) has a vertical tangent at: (Hint: Think about the
1. 5 answers
2. 2,450 views
Suppose f(x) = 4x^5-(1/x^4)Find the slope of the tangent line to the graph of y = f^–1(x) at (3, 1). You get: 1/24 1/16 00062
1. 2 answers
2. 2,803 views
Suppose that f(x) is an invertible function (that is, has an inverse function), and that the slope of the tangent line to the
1. 3 answers
2. 3,339 views
Suppose f(x) = sin(pi*cosx) On any interval where the inverse function y = f –1(x) exists, the derivative of f –1(x) with
1. 8 answers
2. 4,086 views
Suppose that y = f(x) = x^2-4x+4Then on any interval where the inverse function y = f^–1(x) exists, the derivative of y =
1. 5 answers
2. 2,740 views
For the function f(x) = sqrt(9-x), which is equal to d/dx(f-1( -1 is the inverse)(x))a) -2x b) sqrt(x) + 9 c) x^2 + 9 d) 2x e)
1. 5 answers
2. 3,158 views
For the function f(x) = x^2 - 4x +5, x>= 2, which is equal to d/dx (f-1 this is the inverse)(x)) ?1/(2y-4) where x and y are
1. 3 answers
2. 3,795 views
Remember that f(x) must be one-to-one (only one y-value for each x-value) over the domain where f –1(x)is defined as a
1. 3 answers
2. 1,874 views
Find the area of the region bounded by the curves y2 = x, y – 4 = x, y = –2, and y = 1.So far I have found that the area of
1. 1 answer
2. 472 views
A rock is thrown directly upward from the edge of the roof of a building that is 35.3 meters tall. The rock misses the building
1. 2 answers
2. 1,853 views
Measuring the speed of light through gelatin using a laser
1. 0 answers
2. 1,047 views
Use the formula d = 1.22�ãx to estimate how many miles a 5-foot-tall person can see standing on the deck of a ship that is 50
1. 1 answer
2. 518 views
A gardener pushes a mower at a distance of 900 m while mowing the yard. The handle of the mower makes an angle of 40.0 with the
1. 0 answers
2. 703 views
Find the coordinates of the point at 180 degrees on a circle of radius 3.4 centered at the origin.Round your answers to three
1. 1 answer
2. 1,648 views
Two small charges with a mass of 1.0 g each are connected by 2.0-cm-long insulating rod of negligible mass. Each ball has the
1. 0 answers
2. 710 views
When reading some schematics of a rectangular garden you see the binomial x +8 feet represents the length and the binomial x - 1
1. 2 answers
2. 1,112 views
Advertisers contract with Internet service providers and search engines to place ads on websites. They pay a fee based on the
1. 0 answers
2. 1,139 views
Two boat landings are 8.0 km apart on the same bank of a stream that flows at 2.8 km/h. A motorboat makes the round trip between
1. 1 answer
2. 503 views
If the thickness of the probe in the direction of B is 1.97 mm, calculate the charge-carrier density (each of charge e).
1. 0 answers
2. 485 views
43. A phone company charges 10 cents per minute for the first 3 minutes of a call, and 10-cents for each minute thereafter.What
1. 10 answers
2. 2,745 views
When a is divided by 7,the remainder is 4.When b is divided by 3,the remainder is 2.If 0<a<24 and 2<b<8, which of the following
1. 2 answers
2. 1,385 views
A large cylinrical tankor radius 40cm contins a liquid and at time,t the depth is h cm. There is a hole in the bottom and liuid
1. 1 answer
2. 438 views
Find the exact value of:Cos(inverse tan 4/3 + inverse cos 5/13)
1. 1 answer
2. 648 views
A 0.60 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (k = 430 N/m) whose
1. 1 answer
2. 640 views
(a) At a certain instant, a particle-like object is acted on by a force F=(2.9N)i-(1.7N)j+(5.7N)k while the object's velocity is
1. 1 answer
2. 2,218 views
Sort the terms and phrases as to whether they function in or describe primary growth or secondary growth?Place each term or
1. 8 answers
2. 4,368 views
the ratio of width to length of a television scree in 3:4. What is the width of the screen if the length is 32 inches
1. 1 answer
2. 655 views
If the area of a square is eighttimes, by what factor do itsw sides increase in length?
1. 0 answers
2. 379 views
The square of negative nonzero integer is equal to four times of its absolute value. What is the integer?
1. 0 answers
2. 557 views
The product of a number and 8 has the same value as that number minus 2. what is that number?
1. 1 answer
2. 441 views
01. Your home directory can be represented by what single character?"-" or /home/<username> 02. What is a user friendly text
1. 0 answers
2. 677 views
If the " famas " of a number is equal to the number of perfect squares less than that number, what is the famas of 36 ?a. 5 b. 6
1. 3 answers
2. 620 views
{ 1,2,3, ...., 100 )How many numbers in the above set are perfect cubes ? a. 2 b. 3 c. 4 d. 5 e. 6 please answer and explain
1. 1 answer
2. 420 views
{ 30,31,32,....,100 }How many numbers in the above set are divisible by 8 ? a. 9 b. 10 c. 11 d. 12 e. 13 please answer and
1. 2 answers
2. 470 views
A sequence is generated in which each term is 5 less than the previous term. If the twentieth term is -32, what is the fifteenth
1. 2 answers
2. 1,451 views
John has 8 quarters, 3 dimes,and 7 nickels in the change holder in his car. He uses 16 of those coins, totaling $2.50, to buy
1. 3 answers
2. 792 views
The " lumper " of a number is equal to the sum of all the prime numbers less than that number. If the lumper of x is equal to
1. 2 answers
2. 515 views
A sequence is generated in which each term is equal to the sum of the two preceding terms, If the first two terms are 1 and 3,
1. 1 answer
2. 744 views
{ 1,2.3,..........,210 }How many numbers in the above set are multiples of 3 but not 9 ? a. 46 b. 47 c. 48 d. 69 e. 70 please
1. 3 answers
2. 506 views
A sequence is generated in which each term is 9 more than the previous term, If the eighth term is 13, what is the fourth term?a
1. 1 answer
2. 762 views
The length of a side of square S1 is x, and the length of a side of square S2 is five times larger then the area as square S1,
1. 1 answer
2. 507 views
A circle is divided into four segments from the center of the circle. One segment is x degree and each of the other three
1. 3 answers
2. 698 views
Karen baked desserts for a charity fund-raiser. She made 8 pies, 2 cakes, and 2 batches of cookies. She never baked more than
1. 0 answers
2. 536 views
A rectangle has a length of 8 and a width of 3, two squares with sides equal to the width of the rectangle are placed in the
1. 1 answer
2. 579 views
The area of rectangle ACED is 80 square centimeters, and the area of triangle BCE is 30 square centimeters, If AD = 4
1. 1 answer
2. 569 views
The circumference of a circle = 20 pi. If the circle is cut in half, what is the area of one of the resultant halves ?please
1. 1 answer
2. 740 views
If the length of a rectangle is increased by 25%, by what percentage should the width of the rectangle be decreased to maintain
1. 1 answer
2. 496 views
If the area of a circle is increased by a factor of 9, the circumference of that circle will be increased by what factor?a. 3 b.
1. 1 answer
2. 609 views
If the area of a circle increases by a factor of 9, by what factor does its circumference increase ?
1. 3 answers
2. 2,299 views
If the radius of a circle is doubled, by what factor does the circumference increase?
1. 1 answer
2. 729 views
If the side of a square increases by a factor of 3, by what factor does the area of the square increase?
1. 2 answers
2. 717 views
If a square of side length x is cut in half, what is the perimeter of one of the resultant halves?
1. 1 answer
2. 1,612 views
Check..... 1. Find 10% of $500 and 10% of $300.Since 6% is a little more than half of 10%, what is half of 10% of 500? Add this
1. 4 answers
2. 420 views
I came across with this last problem that I don't get on this sheet.Dan's uncle ask him to come work for him at his men's
1. 2 answers
2. 562 views
Find 10% of $500 and 10% of $300. Since 6% is a little more than half of 10%, what is half of 10% of 500? Add this with 10% of
1. 3 answers
2. 1,072 views
A store pays a 6% commission on the first $500 in sales and 8% on sales over $500. Find the commission on an $800 sale.I just
1. 6 answers
2. 1,133 views
The perimeter of the rectangle is 24 cm, the long side is x + 2, the width side is x , if a new rectangle is created by doubling
1. 3 answers
2. 746 views
A square measures 12 cm x 12 cm and is divided into four equal squares. If equal circles are incribed within each of the four
1. 2 answers
2. 838 views
A circle has an area of 25 pi cm^2.If a circle is drawn within that circle with a diameter equal to the radius of the first
1. 7 answers
2. 969 views

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