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5/x+7/y=31,7x+5y=29xy by comparision and subsitition method
1. 2 answers
2. 523 views
the equation x^3 -x-5=0 has one solution for x between -2 and 2. what is the solution?how do I get this
1. 9 answers
2. 413 views
find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line.x=2=2sqrty,
1. 1 answer
2. 627 views
find the volume of the solid by rotating y=1-x^2, y=0 around the xaxis
1. 2 answers
2. 404 views
Consider a rotating platform such as you used in lab. Imagine that it is initially rotating at some angular velocity.You drop a
1. 2 answers
2. 997 views
A string is wrapped around a uniform disk of mass M = 1.6 kg and radius R = 0.10 m. (Recall that the moment of inertia of a
1. 1 answer
2. 2,964 views
A space station has the form of a hoop of radius R = 15 m, with mass M = 6000 kg. Initially its center of mass is not moving,
1. 1 answer
2. 1,507 views
Finddy/dx and d2y/dx2. x = et, y = te−t
1. 3 answers
2. 20,033 views
You know that a collision must be "elastic" if:The momentum of the two-object system doesn't change The sum of the final kinetic
1. 4 answers
2. 3,562 views
A hoop of mass M = 4 kg and radius R = 0.4 m rolls without slipping down a hill, as shown in the figure. The lack of slipping
1. 1 answer
2. 2,018 views
what is the radius of convergence for the sum n=1 to infinity of 3(-1)^n(n)(x^n)?
1. 1 answer
2. 621 views
does density affect weight?
1. 1 answer
2. 374 views
Which way is the momentum occuring if a child is riding a merry go round at a constant speed. So for example at each 4 "sides"
1. 1 answer
2. 622 views
Use the Trapezoidal Rule, the Midpoint Rule, and Simpson's Rule to approximate the given integral with the specified value of n.
1. 1 answer
2. 1,450 views
An isosceles triangle has a base 9.6 units long. If the congruent side lengths have measures to the first decimal place, what is
1. 1 answer
2. 1,791 views
evaluate the integral from 4 to 5.(x^3 -3x^2 -9)/(x^3 -3x^2)
1. 1 answer
2. 389 views
A car of mass 2900 kg collides with a truck of mass 4800 kg, and just after the collision the car and truck slide along, stuck
1. 1 answer
2. 2,458 views
A bullet of mass 0.062 kg traveling horizontally at a speed of 150 m/s embeds itself in a block of mass 90 kg that is sitting at
1. 2 answers
2. 850 views
Two thin hollow plastic spheres, about the size of a ping-pong ball with masses (m1 = m2 = 2e-3 kg) have been rubbed with wool.
1. 0 answers
2. 781 views
Was the action of the NPA in line with its and the RBA’s Code of Conduct.
1. 1 answer
2. 508 views
How many gram ofsodiun fluoride should be added to 100000liter of drinking water containing 0.6 ppm of sodium fluoride to
1. 4 answers
2. 5,171 views
If 50ml of a 7.5% (w/v) sodium bicarbonate injection are added to 500ml of a5% dextrose injection , what is the percentage
1. 2 answers
2. 1,316 views
Apharmacist incorporates 6g of coal tar into 120g of a5% coal tar ointment calculate the percetage (w/w) of coal tar in finshed
1. 1 answer
2. 2,256 views
a pendulum is swinging back and forth once every 1.25 second, how much longer should the pendulum be to increase its period by
1. 1 answer
2. 887 views
if v = (1, 2) and w = (3, -4) find the coordinates of 4v - w
1. 1 answer
2. 362 views
if the angle of rotation with respect to lines l and m measures 30 degrees, then l and m intersect to form an angle of how many
1. 1 answer
2. 616 views
which of the following applies to the graph of y = -2x + 4?a. m = -4; y-intercept = 2 b. m = 2; y-intercept = -4 c. m = 4;
1. 2 answers
2. 501 views
Radioactive decay is a process that follows first-order kinetics. The half-life of 32P is 0.03920 years; how long (in minutes)
1. 2 answers
2. 619 views
the length of nylon rope from which a mountain climber is suspended has a force constant of 1.40*10^4. how much would this rope
1. 1 answer
2. 1,041 views
suppose the length of a clock's pendulum is increased by 0.01 exactly at noon what time will be exactly next day by noon
1. 1 answer
2. 615 views
The formation of condensation on a glass of ice water causes the iceto melt faster than it would otherwise. If 8.00 g of
1. 1 answer
2. 781 views
if 20g of steam at 100 c is mixed into 80 g of water at 20 c what is the final temperature if no heat lost
1. 1 answer
2. 1,887 views
If during an experiment, only potassium channels open on a neuron, what do you expect will happen to the membrane potential?
1. 0 answers
2. 403 views
there are about 100,000 genes in each cell. Why would it be important scientists to identify what every one of these genes does?
1. 0 answers
2. 529 views
Based upon the intermolecular forces present, rank the following substances according to the expected boiling point for the
1. 1 answer
2. 5,894 views
The terms below are measures or individual components of the money supply. Specifically considering the money supply of the
1. 2 answers
2. 3,286 views
economics- what is the law called where cost of input increases so cost of output must increase (in order to keep max profit)
1. 0 answers
2. 437 views
the frequency of wave A is 250 hertz and the wavelength is 30 cm. the frequency of wave B is 260 hertz and the wavelength is 25
1. 2 answers
2. 1,586 views
In the country of Ambiguostan, the government is providing salt-mine concessions to USalt & Co, but due to recent elections,
1. 2 answers
2. 509 views
leah has three fewer than 4 times as many dvds as Sonia has. Leah has 37 dvds. how many dvds does Sonia have?
1. 1 answer
2. 2,209 views
how are buckeyballs,diamond, and graphite similar? how are they different?
1. 2 answers
2. 383 views
Find the correct values for the equation -x^3 +bx^2 +cx + d, using this information, local min x= -5, local max (1,11). Point of
1. 3 answers
2. 567 views
11) Three point charges of magnitudes +6.0 mC, -7.0 mC, and -13 mC are placed on the x-axis at x = 0 cm, x = 40 cm, and x = 120
1. 1 answer
2. 858 views
What should I credit in this journal entry: If the owner of a company puts 50,000 of his own money into the company and gets
1. 0 answers
2. 485 views
Jason left home at 6:12 pm on march 25. He arrived back home 36 hours and 12 minutes later. What time did he arrive home?
1. 1 answer
2. 656 views
sue and dave shared 1/3 pound of cherries equally. What fractional part of a pound did each get?Molly wrote the following
1. 3 answers
2. 572 views
In the net ionic equation for the neutraliza- tion reaction between hydroﬂuoric acid (HF) and sodium hydroxide (NaOH), the HF
1. 1 answer
2. 601 views
Which of the following substances would be expected to be the strongest electrolyte (best conductor of electricity) in solution
1. 1 answer
2. 1,514 views
20%is less than 32
1. 1 answer
2. 322 views
The bond length of RbF is 284.00 pm. What would be the dipole moment, in D, of this compound by assuming a completely ionic
1. 1 answer
2. 697 views
Radioactive substances decay by first-order kinetics. How many years would be required for a sample containing strontium-90 to
1. 1 answer
2. 613 views
given THE DERIVATIVE 8X^3+ 9X^2 -2X +5. find the original equation using (2,3)
1. 1 answer
2. 382 views
The equation of a line is X+Y=1 and the equation of the function is y= 2/x +k. Solve for k and find the points on the tangent
1. 1 answer
2. 476 views
A woman wantes to drive 83 km in 2 h. If she average 42 km/h for the first 1.27 h, what average velocity must she maintain for
1. 0 answers
2. 360 views
I have to do an explanatory speech. i have to choose a discovery or innovation that people know the general idea about but don't
1. 2 answers
2. 474 views
How to do data, picture, equation and result for a problem
1. 1 answer
2. 342 views
A barge is hauled along a straight-line section of canal by two horses harnessed to tow ropes and walking along the tow paths on
1. 1 answer
2. 668 views
Melaine is tired all the time. No matter how much rest she gets and food she takes in she doesn't have energy. What is the
1. 1 answer
2. 484 views
Identifying Zeros and Their Multiplicitiesf(x) = 5(x - 2)(x + 3)²(x - 1/2)4
1. 1 answer
2. 410 views
Nitroglycerin, C3H5N3O9, is a shock sensitive liquid (density = 1.450 g/mL) that detonates by the reaction4 C3H5N3O9(l) ®
1. 1 answer
2. 715 views
in a sample of 159,949 first year college students, the national survey of student engagement reported that 39% participated in
1. 2 answers
2. 673 views
The derivative of a function f is f'(x) = x^2 - 8/x: Then at x = 2, f hasA. an infection point B. a relative maximum C. a
1. 3 answers
2. 414 views
A display case is in the shape of a rectangular box with a square base. Suppose the volumeis 21 cubic ft and it costs $1 per
1. 2 answers
2. 692 views
Find an equation for the tangent line to the curve x2y + xy3 = 2 at the point (1, 1).
1. 1 answer
2. 446 views
When 30 orange trees are planted per acre each tree yields 150 oranges For each additionaltree per acre, the yield decreases by
1. 6 answers
2. 1,481 views
what type of lines do you see in the art piece Kerry James Marshall 1994?
1. 1 answer
2. 472 views
The world population in 1992 is 5.42 billion. If its population doubled every41 years, what would its population be in 41 years?
1. 1 answer
2. 955 views
In the space before each of the following items, place a C if the capitalization is correct, a zero (0) if it is incorrect. Then
1. 2 answers
2. 637 views
Market demand facing a monopolist is Qd=-5P+20. If the monopoly practices perfect price discrimination, what is the
1. 0 answers
2. 462 views
Choose from the list the correct electron configurations for the following ions.A B C D E F G H I J K+ A B C D E F G H I J In+ A
1. 1 answer
2. 930 views
write each addiction vertically. decide which new groups you will make. then add to see if you were correct.256+1.273 A new ten?
1. 8 answers
2. 4,543 views
A shopper in a supermarket pushes a loaded cart with a horizontal force of 12 N. The cart has a mass of 33 kg.(a) How far will
1. 1 answer
2. 990 views
(x+4)^2/3=9
1. 1 answer
2. 314 views
If a= 9990.9 and b= 9886.1. First, convert these to scientific notation. If only three significant digits are allowed in decimal
1. 1 answer
2. 585 views
What is the primary claim made by those who oppose hate crimes legislation?
1. 1 answer
2. 496 views
How would you analyze an audience for the topic: Should regulations for home schools be changed?
1. 1 answer
2. 365 views
can you plz correct itHowdy comrades! Shouldn’t surprise anyone that we took a beating this year, given the insane pricing
1. 2 answers
2. 1,426 views
The height of an outdoor basketball backboard is 12 1/3 feet and the backboard casts a shadow 19 1/5 feet. Find the angle of
1. 1 answer
2. 751 views
a sum of money trebles in 9years 4 months.in how many years will it double
1. 1 answer
2. 357 views
find three points on each plane [x,y,z]= [3,4,-1]+s[1,1,-4]+ t[2,-5,3]
1. 3 answers
2. 383 views
a horizontal force of 600Npulls two masses 10kg lying on a frictionnnnless surface connected by a light string .what is the
1. 0 answers
2. 458 views
explai biot-savart,law.an electron with velocity 3*107ms1 describe a circular path in a uniform magnetic field of
1. 1 answer
2. 586 views
at a certain factory each worker either drives to work or take the bus. the ratio of worker who take the bus to those who drive
1. 2 answers
2. 1,895 views
Consider the following system of inequalities:{(c−1)x^2+2cx+c+4≤0 cx^2+2(c+1)x+(c+1)≥0 The sum of all real values of c,
1. 0 answers
2. 575 views
the probability that a house in an urban area will develop a leak is 5%. if 23 houses are randomly selected, what is the
1. 3 answers
2. 12,589 views
how many gram of h2 needed to react with 3.10 n2
1. 1 answer
2. 555 views
how many gram of h2 needed to react with 3.10 n2
1. 0 answers
2. 327 views
i am researching an article and am having trouble understanding the title. can someone please explain to me in simple terms:Defi
1. 1 answer
2. 383 views
A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the
1. 0 answers
2. 904 views
The Ka of a monoprotic weak acid is 7.25 × 10-3. What is the percent ionization of a 0.167 M solution of this acid?If the
1. 0 answers
2. 732 views
The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its
1. 0 answers
2. 872 views
A flask contains 0.342 g of acid and a few drops of phenolphthalein indicator dissolved in water. The buret contains 0.120 M
1. 0 answers
2. 566 views
One of Rudolph Dreikur's contributions to the field of early childhood education is his belief that?A. All behavior is goal
1. 1 answer
2. 408 views
solve the problem A drug is injected into a patient and the concentration of the drug is monitored. The drug's concentration,
1. 1 answer
2. 801 views
Let’s say you are a health policy expert and you are sitting in your office and you receive a phone call from a news reporter.
1. 0 answers
2. 435 views
In a study examining associations between level of education and response to the Philadelphia Public Health Department’s
1. 1 answer
2. 492 views
) In a recently published article authors reported on their research examining the effectiveness of compound C-4277, an
1. 0 answers
2. 502 views
why is the head temperature kept below 90 c in the initial step of the dehydration reaction?
1. 2 answers
2. 900 views
13. A drawback to using _______ when inventory costs are rising is that the company reports lower netincome. A. LIFO B. FIFO C.
1. 1 answer
2. 1,304 views
There is a slide in the park that is 18 feet long. The ladder to the top of the slide is 7.5 feet long. If the ladder and the
1. 0 answers
2. 583 views

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