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Jacob
Questions and answers by visitors named
Jacob
, page 4
Questions (556)
2^(3/4)*4^(-3/2)
2 answers
198 views
What is the marginal average cost function?
4 answers
299 views
Let N = \int \int \int_B xyz^2\ dV , where B is the cuboid bounded by the regions 0 \leq x \leq 1, -1 \leq y \leq 2 and 0 \leq z
2 answers
1,208 views
For its beef stew, Betty Moore Company uses aluminum containers that have the form of right circular cylinders. Find the radius
4 answers
1,934 views
How many three digit numbers have three distinct digits?
4 answers
372 views
ABCD is a parallelogram. If �ÚABC=35 degrees , what is the measure (in degrees) of �ÚADC ?
1 answer
321 views
ABC is a triangle with circumcenter O , obtuse angle BAC and AB<AC . M and N are the midpoints of BC and AO respectively. Let D
1 answer
389 views
Let ƒÆ=sin −1 7 25 . Consider the sequence of values defined by a n =sin(nƒÆ) . They satisfy the recurrence relation
a n+2
1 answer
467 views
The function f(x)=x 3 +1 4 x−1 4 is a monotonically increasing function, hence it is injective (one-to-one), so its inverse
3 answers
625 views
The function f(x)=x^3 +1/4 x −1^4 is a monotonically increasing function, hence it is injective (one-to-one), so its inverse
1 answer
490 views
Find the absolute extrema of the function on the interval [2,3]. (Round your answers to the nearest hundredth.)
Absolute Minimum
6 answers
4,528 views
The world population at the beginning of 1990 was 5.3 billion. Assume that the population continues to grow at the rate of
3 answers
1,486 views
what does he makes his life seems like "poor me" and he is elevated the process of suffering to a level that any martyr would
1 answer
304 views
Find the scalar product of the vectors ai+bj and bi-aj . Where a and b are arbitrary constants. What's the angle between the two
2 answers
1,000 views
A bag contains 9 blue marbles and 1 green marble. What is the probability of drawing a blue marble followed by a green marble,
4 answers
4,030 views
What value of voltage will be reached across the plates of a capacitor, after two time constants, if the maximum value of
3 answers
413 views
What is smart estimation to determine an estimation range.
1 answer
244 views
A swimmer heads directly across a river, swimming at 1.9 m/s relative to the water. She arrives at a point 50 m downstream from
4 answers
1,892 views
(5d + 5) - (d +1)
4 answers
253 views
A certain ball is dropped from an altitude of 1 meter and rebounds one-half of it's previous altitude. What is the total
1 answer
1,031 views
Ginny has two quarters. For every week that Ginny does all of her chores, her mother increases the amount of money Ginny has
3 answers
822 views
A juggler throws a ball straight up into the air and it takes 2.80 seconds to reach its peak. How many seconds will it take
2 answers
704 views
So, one of my subjects midterm I got 71% (43 out of 60). The mid-term test was worth 25%. It is my first evaluation.
How do I
4 answers
368 views
How many formula units of the compound are present in 5.7g of Epson salt?
1 answer
381 views
A plane flies due north (90° from east) with a velocity of 100 km/h for 3 hours. During this time, a steady wind blows
2 answers
640 views
Let's say a company is manufacturing juice boxes that are rectangular prisms with dimensions 4 inches by 3 inches by 4 inches.
2 answers
1,118 views
Find the missing numbers for the dimensions and measures of a rectangular prism...
Length ? Width 7 m Height 5 m Surface Area 214
2 answers
597 views
Sum and diffence formula Finding Exact value of Tan 105-Tan 10)-15)/1+ tan(105)Tan(-15)
3 answers
604 views
A lump of ice falls from a jet plane as it tries to land at an airport. If the ice hits the ground with a vertical speed of
3 answers
505 views
What is the magnitude and direction of the electric field at a point 0.75 m away from a point charge of +2.0 pC?
3 answers
805 views
Which aspect of Einstein's theory of special relativity was testable?
the postulates only the postulates and the predictions the
3 answers
719 views
Quad ABCD with diagonal DB. <adc=90, <c=91, <cbd=43. segment ad=segment dc=9.
Which segment is longer ab or ad and why?
6 answers
538 views
Quad ABCD with diagonal DB. <adc=90, <c=91, <cbd=43. segment ad=segment dc=9.
Which segment is longer ab or ad and why? steve,
2 answers
570 views
If you have tiny white bumps on your lips, probably caused by frequent lip biting, how can you treat it? Please help
5 answers
364 views
) The energy of the first excited state of a hydrogen atom is -0.34 eV ± 0.0003 eV. What is the average lifetime of for this
1 answer
378 views
Could someone explain whats the difference between these two questions?
Why do you wish to study the program(s)? What influenced
1 answer
466 views
A golfer, standing on a fairway, hits a shot to a green that is elevated 5.50 m above the point where she is standing. If the
3 answers
1,484 views
Stacy Multiplied 5 * 9 and said the answer was 44. What 2 patterns could you use to show that her answer is not correct?
1 answer
393 views
The voltage (in volts) induced in a coil of wire is v = (2t + 1)^0.5. The current in the coil is initially 0.3 amps, and the
1 answer
362 views
What are the typical ppm values of hard water and an unknown water sample and how do their titrations compare?
1 answer
413 views
The velocity (feet per second) of an object is given by the equation v = 3(2t + 1)0.4.
What is the equation for the acceleration
3 answers
495 views
What is a quartic function with only the two real zeros given?
x = -4 and x = -1 A. y = x^4 + 5x^3 + 5x^2 + 5x + 4 B. y = x^4 -
2 answers
579 views
Research studies indicate that the referral approach is effective because:
A. customers seldom trust a salesperson, but do trust
1 answer
1,179 views
6. If 4.0 × 1018 J of work done on a point charge changes its electric potential difference by 25.0 V, then what is the
2 answers
820 views
The minute-hand of a clock is 6cm long. How far does the end of the hand travel in 35m?
4 answers
606 views
The length of a rectangle is 11 cm more than the width. The perimeter is 90 cm. Find the length and width of the rectangle.
2 answers
862 views
if all the macro-molecules are made mainly of the elements CHO, how are they different?
3 answers
521 views
Two forces parallel to the x axis do 17.2 J of work on a small tray while moving it 19.0 m in the x direction across a gym
3 answers
569 views
There are many disease, disorders, syndromes that attack the muscular system such as muscular dystrophy, hypotonia, polio, etc.
2 answers
570 views
Over time,a plant pollinated by a hummingbird has developed very long, tube like flowers.Why might the flower have adapted in
3 answers
953 views
In this problem you will estimate the heat lost by a typical house, assuming that the temperature inside is T(in) = 20 degrees
1 answer
945 views
A dart gun is aimed horizontally at the center of a large target 150 m away. The initial velocity of the dart is 450 m/s.
3 answers
810 views
Find the point on the line -2x + 4y + 3 =0 which is closest to the point (-2,1). Note: I have been struggling on this for hours!
4 answers
3,240 views
A fence is to be built to enclose a rectangular area of 310 square feet. The fence along three sides is to be made of material
3 answers
2,876 views
a toy car rolls horizontally on to a ramp that has a total height of 0.8m. what minimum velocity will allow the car to reach the
2 answers
498 views
a wooden block of mass equal to 15kg is pressed against a spring. The spring has constant of 225N/m. If the spring is compressed
1 answer
445 views
An acceptable unit for power would be
A. kg-m/s B. kg-m-m/s/s/s C. N/s D. Kg-m-m/s/s E. J-s
1 answer
298 views
a ball rolls off the table top 2m tall. with a velocity of 10m/s. with what speed will it strike the ground?
A. 10m/s B. 6.3m/s
1 answer
474 views
Now how far the will the ball in the problem below will hit the ground?
a. 10m b. 6.4m c. 9.6m d. 20m e. 140m a ball rolls off
1 answer
377 views
Comment on the order of elution of the following solutes in (a) normal-phase and
(b) reversed-phase liquid chromatography. Give
1 answer
515 views
(a) What type of ion chromatography (cation or anion) will you use to separate
the following ions: Cu2+, Fe3+, Ag+ and Na+ . I'm
1 answer
625 views
A Gun of Mass 3.5kg fires a bullet at 320m/s. If the gun recoils with a speed of 24m/s, calculate the mass of the bullet.
2 answers
768 views
Find the volume of the solid generated by rotating the area bounded by y=x^2 and x=y^2 about the x-axis.
1 answer
407 views
find the area in the first quadrant bounded above by y=sinx, below by the x-axis, and to the right by x=pi/2 is divided into two
1 answer
465 views
There 46.5J of elastic potential energy stored in a spring. How far is the spring stretched if the spring constant is 455N/m
2 answers
492 views
What is UOLSRRSEDELO unscrambled? The word is a spanish word and is written as:
_ _ _(space) _ _ _ _ _ _ _ _ _ Thanks!
1 answer
435 views
To what volume must 1.0 l of a 6.0 m solution of hcl be diluted in order to prepare a 0.2 m solution?
I just need to find wht
3 answers
2,006 views
A teacher graded the tests for each of her students. She calculated a mean grade of 80 and a standard deviation of 3. One of her
4 answers
555 views
- Simplify: x^2+6x+8/x^2-2x-8 . Identify any excluded values
- Simplify : x^2-36/x^2+6x * x^3+4x^2/x^2-4x-12
1 answer
446 views
Prime factorize the following using factor tree method:
66, 99, 20, 108, 37 and 450
4 answers
1,237 views
What intermolecular forces are present in CSH2??
2 answers
524 views
Write two equations to represent the same exponential function with a y-intercept of 5 and an asymptote at y=3 . Investigate
4 answers
2,343 views
The inside wall of a furnace needs to be designed such that it transmits a
maximum heat flux of 600 W/m2 . The inside wall
1 answer
499 views
If a ball is thrown at an initial speed of 8.0m/s at an angle of 35 degrees above the ground, what is the speed of the ball when
4 answers
800 views
A bullet shot horizontally strikes the ground with a velocity of 150.0km/h (10 degrees below the horizontal), determine the
1 answer
373 views
A person 1.90 m tall walks on a horizontal icy surface. The coefficient of friction between the surface of the ice and the
1 answer
768 views
A person 1.90 m tall walks on a horizontal icy surface. The coefficient of friction between the surface of the ice and the
2 answers
688 views
A plane is headed due south with an airspeed of 190 mph. A wind from the direction of S 40 degrees W is blowing at 30 mph. Find
2 answers
916 views
The tallest volcano in the solar system is the
29 km tall Martian volcano, Olympus Mons. An astronaut drops a ball off the rim of
2 answers
630 views
A knight sits on a castle wall during a siege.To while away the time, he notes that boulders catapulted from below land on the
1 answer
477 views
How many different arrays can you make with a total of 6counters?
1 answer
385 views
A ladder of mass M and length L leans against a wall as shown. There is no friction with the wall but there is friction with the
1 answer
504 views
order the acceleration from least to greatest.
a) 30<-object ->50 b) 20<-object c) 20<-object->40 d) 10<-object->30 I think the
1 answer
429 views
A Piece Of Cloth Costs Birr 200. If The Piece Was 5m Longer, And The Cost Of Each Metre Of Cloth Was Birr 2 less,the Cost Of The
7 answers
3,043 views
Suppose f is a function of x.
1) find d/dx f^2 2)use the result to find the integral ∫ lnx/xdx. I did 1), and I got 2fdf, but
1 answer
348 views
Can someone help me with this question?
A can in the shape of a right circular cylinder is required to have a volume of 1,000
2 answers
487 views
William rode his bike 20 miles in 2 hours. Lorie rode her bike 30 miles in 2.5 hours. If they both continue at the same rate,
3 answers
815 views
An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only
2 answers
671 views
Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular,
3 answers
1,534 views
at the end of 1999 you bought shares in a company for 100 euro. During 2000 the shares increase in value by 10%. During the 2001
2 answers
515 views
if 50,000 tons of freight imports came from japan and 200,000 came from the USA. Can you show the difference between the two in
1 answer
335 views
using a 6.0M stock solution and a 2.5M stock solution, create two 0.01M solutions of hydrochloric acid with a 250mL volume
1 answer
362 views
A $40 000 car depreciates at a rate of 13% per year.
a) Write an equation to represent this situation. b) Find the value of the
3 answers
1,096 views
How many 5-pound bags of apples can be made from 400 apples, each weighing ¼ pound?
7 answers
9,429 views
Anorexia is a type of eating disorder that usually begins with young people
with obese parents around the onset of puberty***
2 answers
1,177 views
Individuals suffering from anorexia suffer extreme weight loss, usually _____ below the person's normal body weight
5% 8% 10%****
5 answers
1,345 views
Anorexia is considered a _______ disorder
physical social predatory psychological***
2 answers
619 views
_________ commonly over-exercise, abuse laxatives, and refuse to eat in order to lose weight
Bulimics Binge-eaters Anorexics***
3 answers
1,572 views
_______ is a psychological eating disorder in which a person will binge eat and then purge
there are no options for this one. I
2 answers
529 views
Bulimia can be difficult to discover because most sufferers hide there condition and they tend to be
a normal weight, sometimes
4 answers
952 views
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