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Jacob
Questions and answers by
Jacob
, page 3
Questions (556)
There are one thousdand students in Central High School. Three hundred twenty-eight of the students are seniors. Write the
2 answers
530 views
On Friday, Jan hiked in the woods. If she hiked a vertical distance of 60 meters relative to sea level and then down 86 meters,
1 answer
355 views
On Friday, Jan hiked in the woods. If she hiked a vertical distance of 60 meters relative to sea level and then down 86 meters,
1 answer
353 views
A) Calculate [OH^-] in a o.12 M solution of hydrazine, H2NNH2(aq), having K of 3.0x10^-6.
B) what is the percent ionization of
4 answers
735 views
Calculate [H3O+] and [OH-] in 0.18M hydrobromic acid, HOBr(aq), having a K of 2.0x10^-9?
I got 9.0x10^-8
4 answers
579 views
What is the name of the 2nd biggest planet in our solar system?
6 answers
507 views
Obtain the radius of a sphere of zinc if its mass is 0.23 mg. The density of zinc is 7.14 g/mL.
The given formulas are: d=m/v
1 answer
360 views
How do I find the 2nd derivative of x^(-1/15)
3 answers
935 views
tan(tan-1 7.4)=?
3 answers
304 views
sec(cos-1 (4/5))=?
3 answers
828 views
A Ferris wheel with radius 11.0 m rotates at a constant rate, completing one revolution every 33.9 s. Suppose the Ferris wheel
1 answer
870 views
A ball of mass 5.3 kg and radius 8 cm rolls without slipping horizontally at 4.3 m/s and hits a spring attached to a wall. What
1 answer
366 views
Explain how to determine the value of x that gives a maximum for a transformed cosine function in the form y=acos(k(x-d)) + c,
1 answer
413 views
A rectangle with vertices at (2,5), (7,5), (7,8) and (2,8) is revolved around the line y=5 to obtain a cylinder. What is the
1 answer
436 views
Some students might argue that if you know how to factor a sum of cubes, then you do not need to know how to factor a difference
2 answers
531 views
Can someone help me with these T.T
1.Which polynomial function would have the end behaviour of as x-> -∞, y= +inf and as x->
1 answer
942 views
State the parent function that must be transformed to create the graph of y=2/3x^3 - 2. Describe the transformation that must be
3 answers
1,407 views
If x^3 = 1 and x does not equal 1, x(x+1)= ?
1 answer
293 views
A particle moves on the x axis so that it's position at any time t is greater than or equal to 0 is given by x(t)=2te^-t.
A) find
2 answers
716 views
Assume that the Starship Enterprise is moving through space at the speed of light. Calculate how much kinetic energy the ship
1 answer
389 views
find dy/dx when y = (5 sec^2 x-7 ) ^3 (x^5-5 cosec x - 1)^7
help
1 answer
297 views
Evaluate the following integrals by using appropriate method :
∫cos ^3 ( 2x-5 )dx help
1 answer
414 views
A pendulum has a period of 0.70 s on Earth. What is its period on a planet where the acceleration of gravity is about 0.31 that
3 answers
420 views
How many grams of Ag2S can be generated from a mixture of 2.48 g Na2S and 3.41 g of AgNO3 given the following unbalanced
4 answers
1,758 views
57 Cds in 8 organizers drawpicturesto tell how many are in each group and how many are left over.
4 answers
468 views
There are four people that want to cross a bridge. Sam can cross in 1 minute, Joe can cross in 2, Jack can cross in 5, and Steve
1 answer
660 views
64/8*3+25/5*8=
1 answer
189 views
I got part one but part 2 is confusing.
Part1: Create a class called Person that has two subclasses Student and Employee. Make
1 answer
478 views
A magician writes a list of numbers, 1 through 10, on the board then turns his back to the board. Two audience members are asked
2 answers
726 views
Enter parentheses to make the following expression have a Value of 45:
24/8*3+5*2+18/3 *= times/multiple /= divided by
1 answer
310 views
Enter parentheses to make the following expression have a Value of 45:
24/8*3+5*2+18/3 *= times/multiple /= divided by
1 answer
350 views
A horse draws a sled horizontally across a snow-covered field. The coefficient of friction between the sled and the snow is
2 answers
947 views
Q1. How do I know what a expression is called for example 6x^3-9x+3?
7 answers
578 views
I need a real life example on how growing up or maturing involves seeing and experiencing pain.
We used examples from this book
2 answers
975 views
A pile of sand that is stockpiled for winter road treatment is in the shape of a perfect cone. The beginning diameter is 110ft
1 answer
467 views
38.0kg mass of copper is melted to be cast into a graphite mold at a copper pipe foundtry. If the solid copper starts off at the
2 answers
922 views
On a warm summer day in Athens, the temperature is 33C (dry bulb temperature) and the relative humidity is 60%. What is the
1 answer
650 views
if the heat of combustion for a specific compound is -1320.0 KJ/mol and its molar mass is 67.53 g/mol how many grams of this
3 answers
456 views
In the double slit experiment with light, we know that the spacing of the interference fringes (which is what we call the bright
1 answer
478 views
A man is 6 feet tall and wishes to have a "full length mirror" in his house, meaning a mirror that lets him see himself from top
3 answers
1,130 views
I have to analyze John F. Kennedy's inaugural address.
I need to find the thesis, preview statement (forecasting or signposting),
2 answers
646 views
A teacher of 75.0 kg bungee-jumps (steps from rest) from a 100 m tower towards a river. The cord can stretch 40.0% of its
1 answer
784 views
A bear spies some honey and takes off from rest, accelerating at a rate of 2.3 m/s2.v If the honey is 18 m away, how fast will
3 answers
1,369 views
is moon a source of earth's energy?
1 answer
221 views
How energy flows through the Earth's system.
1 answer
252 views
You have to wrap gift boxes for your club project. Each box is 4.5 inches wide, 7 inch long, and 4 inches tall. What size sheet
2 answers
1,083 views
Sally applies a total force of 71 N with a rope
to drag a wooden crate of mass 100 kg across a floor with a constant acceleration
4 answers
2,498 views
A block is released from rest at the top of an incline which makes a 30 degree angle with the horizontal. The incline is 12 m
2 answers
545 views
factor the expression 2x^2+5x+3 I just don't understand and my teacher is not a good one
1 answer
329 views
In the following poem I need to know examples of assonance in lines 1-4
1. There once was a cowboy named Ray 2. Who never had
4 answers
502 views
A shell is fired from the ground with an initial speed of 1.72 103 m/s at an initial angle of 40° to the horizontal.
a)
1 answer
777 views
Joe wishes to hang a sign weighing 730 N so that cable A, attached to the store, makes a 30.0° angle, as shown below. Cable B
4 answers
5,605 views
Can you give me an outline of the Industrial Revolution?
1 answer
451 views
How did the Civil War affect the home front in the north and south?
2 answers
511 views
If 100.0 g of carbon-14 decays until only 25.0 g of carbon is left after 11,460 y, what is the half-life of carbon-14?
4 answers
3,587 views
Thallium-208 has a half life of 3.053 min. How long will it take for 120.0 g to decay to 7.50 g?
2 answers
1,282 views
If the half life of Iodine-131 is 8.10 days, how long will it take for 120.0 g to decay to 7.50g?
2 answers
541 views
The half-life of hafnium-156 is 0.025 s. how long will it take a 560 g sample to decay to one-fourth it's original mass?
4 answers
1,461 views
I have to factor 15x^2+2x-24 How can I do this?
1 answer
319 views
What force is needed to give a 0.25-kg arrow an acceleration of 196 m/s2?
A. 0.25 N B. 49 N C. 196 N D. 748 N
6 answers
1,402 views
The patient in the figure below is to receive an intravenous injection of medication. In order to work properly, the pressure of
5 answers
5,644 views
A pitcher holds 2 gallons of orange juice. The orange juice is made 20% concentrated juice and 80% water. How much water is used
3 answers
1,012 views
A book designer decided that the pages of a book should have 1-in. margins at the top and bottom and 1/2 in. margins on the
4 answers
3,174 views
Suppose a snowy-tree cricket chirps 180 times per minute if the temperature is 102 degrees, and chirps 120 times per minute when
2 answers
677 views
Use the method of bisection to find the root of the equation x^5 + 3x − 7 = 0
accurate to two decimal places.
2 answers
635 views
The drawing shows six point charges arranged in a rectangle. The value of q is 8.07 μC, and the distance d is 0.430 m. Find the
2 answers
578 views
The drawing shows six point charges arranged in a rectangle. The value of q is 8.07 μC, and the distance d is 0.430 m. Find the
2 answers
692 views
The drawing shows six point charges arranged in a rectangle. The value of q is 8.07 μC, and the distance d is 0.430 m. Find the
1 answer
651 views
The business was started on April 1st.
I have the following events that happened: what accounts should I debit and credit? 1.
2 answers
528 views
The business was started on April 1st.
I have the following events that happened: what accounts should I debit and credit? 1.
1 answer
416 views
A copy machine makes 60 copies per minute. A second copy machine makes 80 copies per minute. The second machine starts making
3 answers
1,556 views
Find the slope m of the tangent line to the graph of the function at the given point and determine an equation of the tangent
2 answers
605 views
Under a set of controlled laboratory conditions, the size of the population of a certain bacteria culture at time t (in minutes)
2 answers
508 views
Rewrite the expression using positive exponents only. (Simplify your answer completely.)
(x^3-y^3)(x^-3+y^-3)
3 answers
1,225 views
Jerome is 1.5 meters tall, and at a certain time of day, he casts a shadow that is 2 meters. His friend measures the shadow
1 answer
471 views
How many grams of NH3 gas can be made if 42.0 g of N2 gas and 12.0 g of H2 gas react with each other?
N2 + 3 H2 ↔ 2 NH3
4 answers
1,935 views
Find the derivative of the function f by using the rules of differentiation.
f(x)=340
3 answers
718 views
Find the derivative of the function:
f(x)=(x^2+9)/square roote of x
3 answers
284 views
What are the symbols I would use in Excel for each of the following Comparison Operators?
"At Least" --> "More Than" --> "X Or
1 answer
345 views
Find the derivative of the function.
g(t) = ((8t + 10)^2)*(((10t^2) - 7)^-3) I am supposed to use The Chain Rule. However, I am
1 answer
393 views
Find the derivative of this function:
g(t)=(8t+10)^2*(10t^2-7)^-3 Using the Chain Rule.
1 answer
364 views
Find the derivative of the function:
(x^(3)-8)/(x^(2)+9)
6 answers
930 views
Find the first and second derivative of the function:
x/(7x+10) Using quotient rule. This is part of my homework in the section
3 answers
535 views
Find the third derivative of the function:
(5t+4)^(1/2)
1 answer
262 views
Use differentials to approximate the quantity (give answer to 4 decimal places)
4th root of 256.6.
4 answers
2,143 views
What is(are) the precipitate(s) that form when K2SO4, BaCl2, and AgNO3 solutions are mixed?
4 answers
2,253 views
Find the x-value of the relative minima of the function:
2x^(2)+((256)/(x))+8
1 answer
329 views
If the line passing through the points
(a, 1) and (−8, 7 is parallel to the line passing through the points (−11, 8) and (a +
1 answer
379 views
Find the third derivative of the function:
g(t)=square root of 7t+5
1 answer
390 views
Find the third derivative of the function:
g(t)=square root of 7t+5
1 answer
373 views
Let f(x) = −x2 + ax + b.
Determine the constants a and b such that f has a relative maximum at x = 2 and the relative maximum
5 answers
4,921 views
Let f(x) = x3 − 4x2.
Find the point(s) on the graph of f where the tangent line is horizontal.
2 answers
531 views
Find the relative extrema, if any, of the function. Use the Second Derivative Test if applicable. (If an answer does not exist,
1 answer
482 views
Find the absolute maximum and absolute minimum values, if any, of the function. (If an answer does not exist, enter DNE.)
h(x) =
4 answers
4,550 views
If an open box has a square base and a volume of 112 in.3 and is constructed from a tin sheet, find the dimensions of the box,
2 answers
1,020 views
A rectangular box is to have a square base and a volume of 50 ft3. The material for the base costs 32¢/ft2, the material for
4 answers
674 views
Two children, m1 = 50 kg and m2 = 55 kg, and a plastic sled of mass 35 kg start at rest and slide for 5.0 s down a hill. The
1 answer
491 views
Two children, m1 = 50 kg and m2 = 55 kg, and a plastic sled of mass 35 kg start at rest and slide for 5.0 s down a hill. The
2 answers
786 views
A truck gets
800/x miles per gallon (mpg) when driven at a constant speed of x mph, where 40 ≤ x ≤ 80. If the price of fuel
4 answers
1,721 views
2log[base3]9 = ?
3 answers
503 views
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