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Daniel
Questions and answers by
Daniel
, page 4
Questions (1,063)
Consider the function f(x) = piecewise [(x^3)(cos(1/x)) , x=/=0], [0, x=0]. Use the definition of the derivative at a point to
1 answer
412 views
A cheetah running at 30 m/s is pursuing a zebra going in a straight line at 14 m/s. If the zebra has a 35 m head start, how much
4 answers
2,865 views
As an environmental chemist, you want to find the Kc for the following reaction: 2 NO2 (g) ⇌ N2 (g) + O2 (g) Kc = ? Use the
1 answer
404 views
When 0.100 mol of CaCO3 (s) and 0.100 mol of CaO (s) are placed in an evacuated container with a volume of 10.0-L and heated to
3 answers
2,791 views
Find the value of the missing variable
P=4s ; s=32
1 answer
359 views
What is the economic value today of each of the following payment streams if money can earn 7.5%?(Note that the two streams have
1 answer
417 views
A proton moves in a constant electric field from point A to point B. The magnitude of the electric field is 6.4 × 10^4 N/C; and
4 answers
2,101 views
A proton traveling due east in a region that contains only a magnetic field experiences a vertically upward force away from the
5 answers
3,783 views
Five styrofoam balls are suspended from insulating threads.Several experiments are performed on the balls and the
3 answers
1,609 views
A rectangle has a length of 2d and a height of d. Each of the following three charges is located at a corner of the rectangle:
4 answers
1,657 views
Implicit Differentiation question
x^y = y^x I was wondering if I was right in the steps I was taking first was to take the Ln or
3 answers
485 views
A buffer is prepared by adding 300.0 mL of M NaOH to 400.0 ML of 2.0 M CH3COOH. What is the pH of this buffer? ks=1.8X10^-5
2 answers
991 views
A plane flying horizontally at an altitude of 1 mi and a speed of 500 mi/h passes directly over a radar station. Find the rate
3 answers
1,145 views
The drawing shows a copper wire (negligible resistance) bentinto a circular shape with a radius of 0.48 m. The radial sectionBC
1 answer
1,243 views
A convex mirror in an amusement park has a radius of curvature of 3.00m. A man stands in front of the mirror so that his image
5 answers
3,915 views
An object is located 30 cm to the left of a converging lens whose focal length is 50 cm. (a) Draw a ray diagram to scale and
1 answer
798 views
Find the functional values requested in the problem.
h(x)=5 x-1
1 answer
362 views
Find three ordered pairs that satisfy the equation.
y = 5 x - 4
2 answers
496 views
Solve the system.
$ \left\{ \begin{tabular}{l} $ y = x + {\color{red}-2} $ \\ $ y = -{\color{red}3} x + {\color{red}10} $
1 answer
404 views
(a) Simplify the expression.
3(x - 2) - 9(x**2 + 7 x + 4) - 5(x + 8) (a) Simplify the expression.
1 answer
340 views
If a lead bullet goes fast enough, it can melt completely when it comes to a halt suddenly, and all it's kinetic energy is
5 answers
1,752 views
A ladder is placed 6 ft aainsgt a 25 ft building. How high above the ground does the ladder touch the wall?
2 answers
774 views
Evaluate the expression under the given conditions. (show work please)
sin(A-B); tan A=12/5, A in quadrant 3, sinB=-3sqrt(10)/10,
1 answer
1,048 views
A small 0.499 kg object moves on a frictionless horizontal table in a circular path of radius 0.96 m. The angular speed is 6.37
1 answer
910 views
A small 0.499 kg object moves on a frictionless horizontal table in a circular path of radius 0.96 m. The angular speed is 6.37
2 answers
569 views
What is the equation of a parabola whose vertex is (5, -2) and whose graph is 6 times taller than y=x^2?
Include y= as part of
1 answer
368 views
rewrite the quadratic equation y=-3x^2+3x+2 into standard form to determine the vertex
--------, ---------, --------
1 answer
419 views
Between the points (8,-6) and (-8, 6) find
A.) The distance (simplified radical form use sqrt(n). B.) The midpoint ( use ( , )
3 answers
533 views
If the major axis is vertical and has a length of 10 units,the minor axis has a length of 8 units,and the center C=(4,-2).Fill
2 answers
917 views
8x^2+y^2+80x-6y+193=0
Find the center (which i think is (-5,3) Find the major axis Find the minor axis && find the distance from
1 answer
402 views
If a business borrows $18,000 and repays $24,300 in 4 years, what is the simple interest rate?
1 answer
407 views
A car dealer will sell you a used car for $7,542 with $542 down and payments of $213.27 per month for 36 months. What is the
1 answer
337 views
A pizza place sells five topping pizzas with the following options. Crust: Classic, Crispy Toppings: Extra cheese, pepperoni,
2 answers
599 views
briefly explain how to demostrate that all the reactants in a neutralization reaction has been used up
1 answer
327 views
A boy lift a box that weighed 40 newtons if the boy was 1.5 meter tall how much work did he do as he lift the box?
1 answer
357 views
On 2 investments totaling 15,00, peter lost 2% on one and earned 8% on the other. If his annual receipts were $204, how much was
3 answers
1,579 views
On 2 investments totaling 15,00, peter lost 2% on one and earned 8% on the other. If his annual receipts were $204, how much was
1 answer
348 views
Function Table
X. Y 0.5. 2 1. 1 2. 0.5 4. 0.25 5 10 What is the function rule that represents the relationship between x and y.
3 answers
1,137 views
mathematically Evaluate without using tables 2 log base 10 raised 2 power 5 + log base 10 36 - log base10 9 that is, 2log10 5
4 answers
1,996 views
Sandusky Inc. has the following costs when producing 100,000 units:
Variable Costs $400,000 Fixed Costs 600,000 An outside
1 answer
662 views
How many moles of H2PO4 and HPO4 would be needed to prepare 1.0 L of a 0.01M phosphate buffer with a pH of 6.82?
4 answers
1,093 views
How many moles of H2PO4 and HPO4 would be needed to prepare 1.0 L of a 0.01M phosphate buffer with a pH of 6.82?
Use the
1 answer
749 views
Keith and Shawn each have some money. If Keith spends $38, the ratio of the amount of money Keith has to the amount of money
2 answers
582 views
What are some words with the ay slash igh sound
1 answer
271 views
An arrow is shot horizontally from a 50 m cliff with a velocity of 15 m/s. As the arrow travels in its parabolic path, its new
2 answers
503 views
a company paid dividend of $7 per share and has announced that it will increase the dividend by $4 per share each of the next 4
1 answer
794 views
"Will you lend me seven dollars for my lunch today? " asked Shannon.
Is there a question mark after today or a comma
2 answers
580 views
A uniform horizontal rod of mass M and length l rotates with angular velocity w (omega) about a vertical axis through its
4 answers
7,614 views
2. Contrast the metric units of distance, time, and speed. Describe the relationship between them.
1 answer
972 views
Are you always solving for final volume in the combined gas law?
1 answer
426 views
when do you reverse an inequality sign?
1 answer
363 views
What made iroquois headwomen different from regular Iroquois woman
1 answer
444 views
If there are 8 boys and 9 girls in a classroom , what is the ratio of boys to girls ?
4 answers
1,162 views
Calculate the energy change associated with the transition of an electron from the n=2 shell to the n=5 shell in a Bohr hydrogen
4 answers
6,475 views
How many possible orbitals are there for n= 4?
2 answers
482 views
Please explain the order of operations for the formula 30 divided by 5 times 6 Do I do the multiplication first, or do I do the
2 answers
513 views
An airplane flies at airspeed (relative to the air) of 430 km/h . The pilot wishes to fly due North (relative to the ground)
4 answers
3,895 views
For a certain transverse wave, the distance between two successive maxima is 1.82 meters and eight maxima pass a given point
2 answers
588 views
the endpoints of AB are a(-3,5) and b(9,15). find the coordinates of the points that divide AB into 4 congruent segments
4 answers
1,237 views
docs(DOT)google(DOT)com/file/d/0B3_sydO5xXRZOUpwTVZIbUdvNXM/edit
I have to write a childrens book(3rd-4th grader) for a history
2 answers
876 views
For the reaction of hydrazine (N2H4) in water, Kb is 3.0 10-6.
H2NNH2(aq) + H2O(l)--> H2NNH3+(aq) + OH-(aq) Calculate the
4 answers
2,928 views
How do I tell which curve is the top/bot or right/left? I keep getting confused about this.
Is it just the right/top most
27 answers
394 views
Actual lengths of pregnancy terms are nearly normally distributed about a mean pregnancy length (of about 38-39 weeks) with a
1 answer
817 views
Two negative charges each of unit magnitude and a positive charge q are placed along a straight line. At what value of q will
2 answers
494 views
How is the integral of cos(2x) = sinxcosx?
1 answer
394 views
Experimentaly discribe how to determine the formula of magnesium.
1 answer
306 views
Clearly show and explain each step for full credit.
solve the inequality |4x-3|=5
1 answer
305 views
Integral of 10 / (5x^2 - 2x^3) Do not determine the numerical values of the coefficients.
Just wanted to know why when I write
4 answers
835 views
A list of numbers has an average of 48 and an SD of 12. The list is transformed by subtracting 3 from each entry and then
3 answers
400 views
A quiz consists of 10 questions. Each question is marked either “right” or “wrong.” For each student in the class, the
4 answers
576 views
In the quiz in Exercises 1 and 2, the grading scheme is as follows: each right answer is awarded 5 points, and 1 point is taken
5 answers
491 views
Discuss what the Egyptian stories of Isis, Osiris, and Horus reveal about Egyptian culture and what The Enuma elish reveals
2 answers
536 views
what is the momentum of a 0.60 g bumble bee flying at 15km/h
2 answers
570 views
find the exact length of the curve
y = ln(1-x^2), 0 <= x <= (1/2) So by doing the work I eventually get down to integral from 0
2 answers
604 views
• A car moves 26 km due east then 14 km due north. It then turns along a path running north-west with 15 km, then 17 km due
4 answers
415 views
What are five numbers that have a median of 71,300
1 answer
334 views
Hello. I would like to ask a college statistics question.
Q. One hundred draws are made at random with replacement from the box
4 answers
3,563 views
Inflation is currently causing the cost of items to increase by about 2.5% per year. In 2009 a litre of gasoline costs
3 answers
685 views
1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing
4 answers
924 views
1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing
5 answers
1,740 views
1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing
1 answer
793 views
1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing
1 answer
628 views
An antique dresser was purchased for $7500 in 2005. The dresser increases in value by 9% per year. Find the value of the dresser
3 answers
835 views
Confused!
So here is the question: Inflation is currently causing the cost of items to increase by about 2.5% per year. In 2009 a
4 answers
400 views
One more question:
Beginning with the function f(x) = (0.8)^(x), state what transformations were used on this to obtain the
3 answers
922 views
The Question is:
The value of a new car depreciates at a rate of 12% per year. 1)Write an equation to represent the approximate
3 answers
821 views
How many grams of H2SO4 are contained in 4.5 L of .30N (N standing for normality) sulfuric acid?
Help would be much appreciated.
1 answer
721 views
What are the freezing point and boiling point of an aqueous solution of 15.5 g glucose(C6H12O6) dissolved in 150 g of water?
2 answers
1,103 views
Wondering the answers to these:
Find the value of each of the following. Leave your answers as fractions where appropriate. [I
4 answers
526 views
An animal population is increasing at a rate of 150+20t animals per year. By how much does the animal population increase
1 answer
510 views
An animal population is increasing at a rate of 150+20t animals per year. By how much does the animal population increase
1 answer
344 views
In 1800, the area of the United States was 891,364 square miles. After the Louisiana Purchase in1803,the area increased by about
2 answers
585 views
Estimate the area under the graph of 25−x 2 from x = 0 to x = 5 using 5 left rectangles.
b. Sketch for yourself the graph of f
2 answers
682 views
If (Y x 15+20=245), what does Y equal?
3 answers
303 views
9 fair coins are independently tossed in a row. Let X be the random variable denoting the number of instances in which a Head is
3 answers
359 views
Jeff takes a loan of R25000 in a period of 5years calculate the interest rate?
1 answer
283 views
A quarter has a diameter of approximately 24 millimeters. What is the area of the quarter?
Did I work this right? A= 3.14 (12)
4 answers
1,747 views
imagine that you have a 100 ml of HCl, after adding 50 ml of 1M NaOH, how many moles of OH did you add
1 answer
392 views
imagine that you have a 100 ml of HCl, after adding 50 ml of 1M NaOH, how many moles of OH did you add
1 answer
297 views
If a diameter of a circle (which is 18 inches) is tripled, can the expression 9 (254.34 in square) be used to find the new
1 answer
186 views
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