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Emily

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Find d^2y/dx^2 at point P(2,1) if y is a differentiable function of x satisfying the equation:x^3+2y^3=5xy
1. 1 answer
2. 454 views
The average score on a recent test was 75%. One of the students earned a grade of 93% while another student earned a grade of
1. 2 answers
2. 673 views
A rancher wants to create a fence enclosing 1500 m2 of land. The plot will be divided into two equal areas by an additional
1. 2 answers
2. 617 views
Find the integral∫(x^2-6x+1)/(x^2+1) dx
1. 2 answers
2. 284 views
If I spent 1/3 of my money on a pen and 4/7 on books how much do I have left?
1. 3 answers
2. 805 views
How many 6-inch long pieces of ribbon can be cut from a piece that is 3 yards long?
1. 2 answers
2. 874 views
What volume of hydrogen, reacting with nitrogen, will produce 500 dm^3 of NH3 at STP?
1. 1 answer
2. 748 views
If f(x) =2x-1, then f^-1(x)=???
1. 1 answer
2. 260 views
What are the focus and directrix of the parabola represented by the equation:8(y-6)=(x+2)squared?
1. 1 answer
2. 752 views
Poem Meaning"I had sat within that marble circle where the Oldest bard is as the young, And some orient dawn had found me
1. 1 answer
2. 499 views
Find the average value of the function over the given interval and all values of x in the interval for which the function equals
1. 4 answers
2. 2,888 views
How did early humans use fire?
1. 1 answer
2. 511 views
A wire is attached to a cell phone tower at Sunshine Village. The wire is 15.6m in length, and the angle of elevation is 54°.
1. 1 answer
2. 520 views
A laser pointer attached at the top of a lighthouse emits a beam that makes contact with a ship in the ocean below. The length
1. 3 answers
2. 649 views
Susie has eight pieces of string. Three pieces are 7.8 inches long, and five pieces are 9.2 inches long. How many inches of
1. 6 answers
2. 2,069 views
Susie has eight pieces of string. Each string measures 6.5 inches long. How many inches of string does Susie have altogether
1. 10 answers
2. 1,810 views
A solid is formed by adjoining two hemispheres to the ends of a right circular cylinder. An industrial tank of this shape must
1. 3 answers
2. 9,984 views
A solid is formed by adjoining two hemispheres to the ends of a right circular cylinder. An industrial tank of this shape must
1. 0 answers
2. 550 views
Find the length and width of a rectangle that has the given area and a minimum perimeter.Area: 50 square feet
1. 1 answer
2. 1,501 views
Find the particular solution that satisfies the differential equation and the initial conditions.f''(x) = x^2 f'(0) = 8, f(o)=4
1. 1 answer
2. 879 views
A baseball is thrown upwards from a height of 2 meters with an initial velocity of 10 meters per second. Use the fact that -9.8
1. 1 answer
2. 8,375 views
Work out the area of an equilateral triangle, with side lengths a, in sure form.
1. 1 answer
2. 347 views
Find the particular solution that satisfies the differential equation and the initial condition.f '(s) = 10s − 4s3, f(3) = 7 &
1. 1 answer
2. 2,792 views
How many times greater is the 8 in the hundreds place then the 8 in the ones place explain your answer
1. 3 answers
2. 2,137 views
If 9 apples cost $8.1 how much would 5 apples cost
1. 1 answer
2. 303 views
Consider the following simplified economy described by a Cobb-Douglas production function with three factors of production:
1. 0 answers
2. 745 views
which word fits the sentance bestA horse is called a ______________. A frog is called a ______________. A school is called a
1. 1 answer
2. 615 views
Ramon planted 3 rows of seeds. He put 8 seeds in each row. Each row of seeds were 42 inches long. How far apart did Ramon plant
1. 2 answers
2. 669 views
After release at ground level, a balloon rises 100 feet in 30 seconds. During each succeeding 30 seconds, it rises 9/10as far as
1. 1 answer
2. 649 views
A local salesman receives a base salary of $575 monthly. If his total sales receipts for the month exceed $1800, he also
1. 1 answer
2. 2,210 views
What would be the wavelength of a 50-gram golf ball traveling at 40 meters/second? Is this large enough to be observable?
1. 1 answer
2. 363 views
What conflicts between humans and robots might occur in the future?Plzz Help!
1. 1 answer
2. 624 views
Suppose we detect red photons at 674 nanometers emitted by electrons dropping from the n = 3 to n = 2 orbital in hydrogen. The
1. 0 answers
2. 684 views
Two cars are traveling at 40 and 50 miles per hour, respectively. If the second car starts out 5 miles behind the first car. How
1. 1 answer
2. 708 views
The diameter of my trundle wheel is 50cm. I use it to measure the length of the school park. It rotates 87 times. What is the
1. 1 answer
2. 530 views
Find the set of points that the following function is continuous at them .f(x)= { (2x+1)/(x+3) if x<0 (√(x+4)-2)/2x^2-3xx if
1. 1 answer
2. 437 views
Find all the values of a and b in such a way that f is continuous function on its domain.f(x)= { (√x+a)+1 if -a ≤x ≤ 0
1. 1 answer
2. 466 views
Do you think the copper and zinc underwent a physical change or a chemical change?
1. 1 answer
2. 524 views
you have $50 in your bank account and you deposit $20 per week. Write an equation for the total amount of money you have in your
1. 1 answer
2. 705 views
CLIMATOLOGIST Each year a tree is alive,it adds a layer of growth,called a tree ring,between its core and its bark. A
1. 14 answers
2. 1,848 views
Revise the following sentence so that ACTIONS name KEY VERBS.1. Our discussion was lively and fun
1. 1 answer
2. 557 views
A major component of gasoline is octane C8H18. When octane is burned in air, it chemically reacts with oxygen gas O2 to produce
1. 1 answer
2. 2,142 views
a parallelogram has an area of 150 cm^2. the side lengths are 80 cm and 40 cm what are the measures of the angles
1. 0 answers
2. 366 views
A door is opened by pushing inwardexplain in terms of torque why this is most easily accomplished when pushing at right angles
1. 0 answers
2. 696 views
a wrench is rotated with torque of magnitude 175 N (M). the force is applied 45 cm from the pivot point at an angle of 48
1. 1 answer
2. 881 views
Would k(a-b) x (a x c) -a +( b x c) be a scaler, vector or meaningless? (these are all vectors besides k)?
1. 1 answer
2. 314 views
Mr.Adams had a coin collection including only nickels, dimes, and quarters He had twice as many dimes as nickels and half as
1. 4 answers
2. 2,552 views
Determine the value and value for each of the following:a) 2(3,y )-5(x,2)= (6,-4 )
1. 1 answer
2. 282 views
Find the angle between the vectors ⃗⃗u (-1,4,2 ) and ⃗v (-2,5,1 )
1. 1 answer
2. 392 views
Why is a cool basement damp, in terms of humidity?I know that when you increase temperature and relative humidity decreases but
1. 1 answer
2. 422 views
Marie traveled to work (7km) in 25 minutes. What was her speed?I got 16.8km/h but my teacher said it's 28km/h and I have no idea
1. 1 answer
2. 474 views
Find the area of the region bounded by the curves y = x^(-1/2), y = x^(–2), y = 1, and y = 3.a) (1/2)(3)^1/2 + (4/3) b)
1. 2 answers
2. 2,525 views
You want to cover a trapezoidal box with paper. You have a sheet of paper that is 1m by 500cm. What is the size box that can be
1. 1 answer
2. 608 views
You want to cover a trapezoidal box with paper. You have a sheet of paper that is 1m by 500cm. What is the size box that can be
1. 0 answers
2. 429 views
A tank measures 30 can by 60cm by 50cm. What is the height of water in the tank when 60000 ml of water are poured into it?
1. 1 answer
2. 534 views
Yesterday kate and her cousin robert went out for a movie there they spent $50 in total robert spent $10 more than kate how much
1. 1 answer
2. 854 views
how many grams of AlCl3 is produced if 15.5 grams of Al are reacted with excess Cl2 gas? 2Al + 3Cl2 > 2AlCl3
1. 1 answer
2. 694 views
The colour of some clothing fades overtime when washed. Suppose a pair of jeansfades by 5% with each washing. To the nearest
1. 2 answers
2. 1,807 views
a cube slides down a frictionless incline as shown and inelastically strikes a cube at the battom of the incline that's 1/2
1. 0 answers
2. 596 views
a cube slides down a frictionless incline as shown and inelastically strikes a cube at the battom of the incline that's 1/2
1. 0 answers
2. 573 views
A person plans to invest a total of $9000 in an account that pays 3% annual interest and another account which pays 8% annual
1. 1 answer
2. 838 views
Blood flows in an aorta of radius 4.62mm at 35.0cm/s. Calculate the volume flow rate.Although the cross-sectional area of a
1. 0 answers
2. 714 views
A 0.294-kg box is placed in contact with a spring of stiffness 3.792×102 N/m. The spring is compressed 1.42×10-1 m from its
1. 5 answers
2. 1,822 views
The pH of human blood needs to be between 7.35 and 7.45. You want to prepare a buffersolution that gives a pH of 7.40. You
1. 1 answer
2. 784 views
I don¡¯t know how to slove this problem can someone help me£¿The shorter leg of a 30¡ã60¡ã90¡ãtriangle is 2.5 feet
1. 2 answers
2. 526 views
Consider a metal rod that is 1.42 m in length at a temperature of 14.4°C. The coefficient of linear expansion is
1. 1 answer
2. 787 views
The volume flow rate in an artery supplying the brain is 4.59E-6 m3/s. If the radius of the artery is 5.33 mm, determine the
1. 1 answer
2. 1,019 views
A block of mass M=0.525kg is floating stationary in a beaker of water. A string connected to the bottom of the beaker holds the
1. 1 answer
2. 1,135 views
The pH of human blood needs to be between 7.35 and 7.45. You want to prepare a buffersolution that gives a pH of 7.40. You
1. 2 answers
2. 779 views
A high school has 438 students with about the same number of males and females. Describe a simulation to predict how many of the
1. 0 answers
2. 660 views
Talia tossed a penny many times. she got 40 heads and 60 tails. she said the experimental probability of getting heads was 40
1. 1 answer
2. 1,711 views
A population of bacteria has exponential growth and will double after 10 hours. Find the growth rate to the nearest hundredth.
1. 1 answer
2. 631 views
A spring loaded ballistic pendulum gun requires an increasing force to load. When loading a ball of mass 0.054 kg, the spring is
1. 1 answer
2. 1,257 views
A pendulum clock can be approximated as a simple pendulum of length 1.03 m and keeps accurate time at a location where g = 9.82
1. 1 answer
2. 2,533 views
a jewlery box in the shape of a rectangle prism has a volume of 90in.3 and a height of 2 1/2 in, What are possible demensions
1. 1 answer
2. 624 views
A horizontal circular platform (m = 110.1 kg, r = 3.21m) rotates about a frictionless vertical axle. A student (m = 98.3kg)
1. 1 answer
2. 710 views
Which hand has covered more distance from the 12 on a clock, the minute hand at 4:00 or the second hand at 15 seconds past?
1. 0 answers
2. 524 views
Find the exact values of sec(x)=7.I know that cos(x)=1/7. I know that sin(x)= sqrt(1-91/4900). I know that tan(x)=1. I know how
1. 1 answer
2. 502 views
Find the exact value of cot(arcsin(12/13))and cos(arcsin(1.7/2)) I know that cos(arcsin(x))=sin(arccos(x))=sqrt(1-x^2). I'm
1. 3 answers
2. 1,143 views
How do I tell the difference between a non conic function and a conic function by looking at an equation?
1. 1 answer
2. 487 views
Find two consecutive even integers such that the square of the lesser integer increased by twice the greater integer is 364.
1. 1 answer
2. 478 views
A high-speed sander has a disk 5.70 cm in radius that rotates about its axis at a constant rate of 1120 revolutions per minute.a
1. 4 answers
2. 2,815 views
How do you turn revolutions into radians? Please help!
1. 1 answer
2. 412 views
A wheel has a radius of 5.22 m.a.) How far (path length) does a point on the circumference travel if the wheel is rotated
1. 1 answer
2. 541 views
A pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Each time the
1. 1 answer
2. 1,069 views
A block of mass 0.61kg starts from rest at point A and slides down a frictionless hill of height h. At the bottom of the hill it
1. 3 answers
2. 807 views
In a skating stunt known as "crack-the-whip", a number of skaters hold hands and form a straight line. They try to skate so that
1. 1 answer
2. 746 views
A 9.37 kg monkey is hanging by one arm from a branch and swinging on a vertical circle. As an approximation, assume that the
1. 1 answer
2. 584 views
A car travels at a constant speed around a circular track whose radius is 2.59 km. The car goes once around the track in 380 s.
1. 1 answer
2. 668 views
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats
1. 2 answers
2. 644 views
Arrange the following compounds in order of increasing boiling point.butanal 1-butanol diethylamine tartaric acid butane
1. 1 answer
2. 1,560 views
Points J and K, plotted on the coordinate grid, are two vertices of rectangle JKLM. Rectangle JKLM has an area of 7 square
1. 9 answers
2. 5,165 views
The formation constant* of [M(CN)4]2– is 7.70 × 1016, where M is a generic metal. A 0.170-mole quantity of M(NO3)2 is added
1. 1 answer
2. 4,268 views
Block B has a mass of 3.40kg and is moving to the left at a speed of 4.20m/s. Block A has a mass of 6.40kg and is moving to the
1. 1 answer
2. 610 views
Block B has a mass of 2.20kg and is moving to the left at a speed of 2.30m/s. Block A has a mass of 2.70kg and is moving to the
1. 1 answer
2. 794 views
If adriana drew 20 pitchers and 3/4 of them are in art class how many pitchers did adriana draw in art class
1. 1 answer
2. 390 views
A 63-kg ice-skater glides with a speed of 10 m/s toward a 14-kg sled at rest on the ice. The ice-skater reaches the sled and
1. 1 answer
2. 1,135 views
A 64.8 kg ice skater is skating along in a straight line (in the positive direction) at 9.2 m/s when he bends down and scoops up
1. 1 answer
2. 1,167 views
A car of mass 422 kg is moving 36.0° North of East at a speed of 15.4 m/s. What is the magnitude of the momentum of the car?
1. 1 answer
2. 676 views
A car of mass 422 kg is moving 36.0° North of East at a speed of 15.4 m/s. What is the magnitude of the momentum of the car?
1. 1 answer
2. 500 views

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