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Dave
Questions and answers by
Dave
, page 5
Questions (497)
Evaluate the integral of e^(1/x) / x^2 from [1,2].
I let u =1/x, but then I am stuck because I am not sure what is the derivative
1 answer
319 views
Evaluate the integral of (x^3 + x^4*tanx) from [-pi/4, pi/4]
How do we know which one to let equal to u in order to start this
1 answer
332 views
Evaluate the integral of x * sqrt(x-1) from [1,2].
I let u=x-1 and du=1*dx, but then I can't get rid of the x to start
1 answer
337 views
Evaluate the integral of (e^z + 1)/(e^z + z) from [0, 1]
How do you know what to let equal to u to start this process? The answer
1 answer
338 views
Evaluate the integral of 1/(1+sqrtx)^4 from [0,1]
I started off letting u=1+sqrtx and du=1/2sqrtx, but then there is no 1/2sqrtx
2 answers
508 views
A 10.0000 g block of aluminum is heated and placed in a stream of oxygen gas, resulting in the formation of aluminum oxide on
3 answers
596 views
A 10.0000 g block of aluminum is heated and placed in a stream of oxygen gas, resulting in the formation of aluminum oxide on
4 answers
638 views
What is traveling faster, an x-ray wave or a radio wave?
The question is so general, so how am I suppose to figure it out without
2 answers
482 views
Solve the integral of (x*e^2x)/(1+2x)^2 by first using u substitution and then use integration by parts.
I am very confused on
4 answers
600 views
Solve the integral from [0,pi] of x*sinx*cosx*dx
I don't understand how to solve this problem because if I let u =x and du =1 and
3 answers
557 views
Evaluate the integral from
[sqrt(pi/2), sqrt(pi)] of x^3*cos(x^2) by first making a substitution and then using integration by
2 answers
709 views
Evaluate the integral of x*ln(1+x) dx by first making a substitution and then using integration by parts.
I let u=1+x and du = dx
2 answers
758 views
Evaluate the integral of (e^2x)*sin^3 x dx
I let u = e^2x, du = (1/2)e^2x dx v= (-1/3)cos^3 x , dv =sin^3 x dx When I used
2 answers
765 views
Solve the indefinite integral of 1/sqrt(x^2+2x+5).
I solved it all out by completing the square and then trig sub and then
4 answers
448 views
Solve the indefinite integral of 1/sqrt(x^2+2x+5).
I solved it all out by completing the square and then trig sub and then
1 answer
457 views
Solve the indefinite integral of 1/sqrt(x^2+2x+5).
I solved it all out by completing the square and then trig sub and then
5 answers
1,863 views
a) An investment gives you $10,000 from years 1 through 4 and 40,000 in year 5. If the interest rate is 7.5%, what is the
2 answers
612 views
1)Susan wants pizza for her birthday party. It costs $8 per pizza plus a $5 delivery fee. She doesn't know how many she needs,
2 answers
525 views
What's the purpose of finding derivatives? I don't understand why you would need to find a derivative, which is the tangent of
3 answers
543 views
Suppose y varies directly with x, and y = 14 when x = -4. What is the value of y when x = -6
How would i do this
4 answers
1,013 views
"Cab companies often charge a flat fee for picking someone up and then charge an
additional fee per mile driven. Pick a U.S. city
7 answers
asked by
Dave
7,161 views
Picks a group of microbes and describes what you envision as a big change/advancement in one aspect relating to that group of
2 answers
519 views
How do i solve x^3 (x-9) + (4x^3) don't give me the answer explain it
3 answers
356 views
In Republic IV, Socrates argues that the human soul, like the good city, has three divisions. What are the divisions of the
1 answer
458 views
2) In Republic VII, Socrates offers the allegory of the cave as an image of the soul’s ignorance or lack of education.
2 answers
736 views
Can you safely assume you are not allergic to a poison sumac plant if you have come in contact with it and 12 hours later you
1 answer
688 views
where does the exchange of oxygen occur in the lungs?
Ans: in the alveoli
1 answer
427 views
A is partly constant and partly varies as b when A is equal to 15 B was 2 when is equal to A 45 is B equal to 8
3 answers
459 views
What is the absolute value of x-700 that is ≤ 80
1 answer
264 views
Peach = 100
Apricot = 101 Apple = 50 Avocado = 605 Lime = 1051 Kiwi = ?
2 answers
606 views
You are driving down the highway late one night at 20 m/s when a deer steps onto the road 35 m in front of you. Your reaction
3 answers
4,576 views
A
glass bottle full of mercury has a mass 500g. 35°C, 243g of mercury are expelled. Calculate the mass of f mercury remaining in
3 answers
1,462 views
Which of the following explains the goal of Roosevelt’s lend lease policy
1 answer
455 views
"The hijab has many images for Westerners, while its meaning differs for those wearing it.
Explain at least three different
4 answers
414 views
X is partly constant and partly variable.when Y=5, x=19 and when y=10, x=34 find x when y is 7
1 answer
264 views
Consider the following: h={(1,2),(2,4),(3,6),(-1,-2),(-2,-4)}.
a) Explain why h: ℤ --> ℤ does not describe h correctly. This
1 answer
436 views
What intermolecular forces exist in dichloromethane, n-pentanol, and toluene besides London Dispersion Forces?
3 answers
2,479 views
Is n-petanol polar?
I know that methanol is polar, so would n-petanol be the same?
1 answer
261 views
A sandwich shop sells 12 different kinds of sandwiches.
1. You want to buy 5 different sandwiches to bring home to your family.
2 answers
681 views
An employer has $500 that she can award in bonuses to her 7 employees. If she wants all of the bonuses to be in $25 increments
1 answer
386 views
An employer has $500 that she can award in bonuses to her 7 employees. If she wants all of the bonuses to be in $25 increments
1 answer
350 views
An employer has $500 that she can award in bonuses to her 7 employees. If she wants all of the bonuses to be in $25 increments
1 answer
317 views
#1: a) Let a, b, c be integers and x is congruent to y (mod m). Prove that ax^2+bx+c is congruent to ay^2+by+c (mod m).
b) Show
1 answer
487 views
1. Let T = {a, b, c, d}.
a. Find an example of a relation of this set that is transitive, but neither reflexive nor symmetric. b.
1 answer
321 views
Given the following partition of the set A = { 6, 7, 8, 9, 10, 11 }. Find the associated relation { [6, 7, 8], [10], [9, 11] }.
1 answer
310 views
Call a relation R “orbital” if x R yand y R zimply z R x. Prove that R is an equivalence relation if and only R is both
1 answer
457 views
Call a relation R “orbital” if x R yand y R zimply z R x. Prove that R is an equivalence relation if and only R is both
1 answer
444 views
A quilter has 15 different squares made up, 8 with blue as the main colour, 4 with gold, and 3 with green. What
is the total
4 answers
1,230 views
An investment of $12,000 earns interest at an annual rate of 8% compounded continuously.
Question 1: Find the rate of change of
2 answers
775 views
The liquid in a car's radiator is 75% water and 25% antifreeze. Suppose that 30% of the radiator's liquid is drained out and
3 answers
541 views
4y^2+5
1.Name the polynomial using both the number of terms and the degree. 2.Is the polynomial in standard form
1 answer
273 views
What are the the two forms used by Benjamin Britten in his composition, "The Young Person’s Guide to the Orchestra"?
1 answer
269 views
Is this a A categorical syllogism?
Most Humans are frightened of the unknown. The deep seas are unknown. Most Humans are
1 answer
208 views
I have 2 questions I can't solve. I am Stuck.
1. A person with very good musical pitch listens to a guitarist on a moving stage
1 answer
495 views
In triangle, A is equal to 115 degree, A is equal to 65m,B is equal to 32m,solve the triangle completely
4 answers
599 views
In a class 40 students,31 play football,26play hockey and 13play volleyball.19 play football and hockey,8play both football and
3 answers
576 views
A small railroad engine is able to exert a 17,500 lb pulling force. The coefficient of friction for steel wheels on steel rail
3 answers
507 views
Which of statements best describes the movement of the diaphragm when we inhale
1 answer
237 views
What is the approximate yield to maturity for the following bonds? Assume these are bonds issued in the United States.
a. 10
1 answer
218 views
A trapezium has the parallel side of a length Xcm and (X-6)cm;the distance between the parallel lines is (X-3),if the area of
1 answer
204 views
The sides of a rectangle are
1) 4X+3 2) 4X-Y 3) 3X-1 4)X+6Y Find X and Y and the area of the rectangle
1 answer
122 views
The sides of a rectangle are
Length:4X-Y,3X-1 Breath:4X+3,X+6Y Sorry for the inaccurate description last time
1 answer
130 views
The probability of selecting a banana from a bowl containing 10 bananas
1 answer
108 views
In an A.P. if a4=84 and a10=60 then find the maximum possible partial sum of the sequence.
4 answers
100 views
What multiplication fact an help you find 7 divided by 7?
1 answer
104 views
Represent 0.09 in words and fractions
4 answers
92 views
The sum of the derivative and integral of a constant equals what? Explain in great detail along with mathematical expressions
2 answers
71 views
How to animate on flipaclip
2 answers
77 views
How to play shadow fight 2
2 answers
78 views
How to defeat titan in shadow fight 2
2 answers
72 views
Who are you
2 answers
63 views
Do you believe in God
2 answers
57 views
In football who is better between Ronaldo and Messi
2 answers
73 views
Who am i
2 answers
55 views
How can I improve my IQ
2 answers
54 views
What are the applications of sum of derivative and integral of a constant in real life and in physics
2 answers
90 views
How to formulate a Function
2 answers
52 views
Is Space-time flat or curved
2 answers
60 views
What if Space-time was flat
2 answers
58 views
Is Space-time flat because of the presence of mass or Space-time is inherently curved?
2 answers
69 views
How should a theory of quantum theory of Gravity look like?
2 answers
44 views
1/0 is undefined explain in detail along with mathematical expressions and it's real life implications importance and
2 answers
75 views
How can you plot a graph of Tan 0 to 360. Explain in detail
2 answers
69 views
Why is Tan 90 Undefined. Explain it in detail along with mathematical expressions and equations.
2 answers
85 views
If mass distorts the curvature of space time which produces gravity and since it is a attractive force,it must attract smaller
2 answers
51 views
When two rocks or bodies are pressed against each other a force is experienced. What is it called and it's principle of Action
2 answers
31 views
How to formulate a partial differential equation for modelling a phyics and give examples. Explain it in detail along with
2 answers
76 views
How to be unstoppable in tennis 3d
2 answers
27 views
How to be unstoppable in tennis 3d game
2 answers
35 views
How can you integrate a formula? Explain it in detail along with mathematical expressions and equations.
3 answers
51 views
What is the integral of the Quadratic formula? Explain it in detail along with mathematical expressions and equations.
3 answers
47 views
In not less than 450 words write a narrative essay on a birthday party you attended following this guidelines
1) Introduction 2)
1 answer
59 views
What were the consequence of Hewett treaty?
1 answer
22 views
Why did Sudan fall easy prey to Egypt ?
1 answer
12 views
Why did menelik agree to give away territories to the Italians ?
1 answer
34 views
Discuss the impact of menelik's expansion on the conquered regions ?
1 answer
22 views
A group of 22 travellers were each required to obtain a passport, a health certificate and convertible currency equivalent to
1 answer
19 views
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