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Abigail
Questions and answers by
Abigail
Questions (206)
Identify the coordinates of any local extrema of the function y=e^x - e^(2x).
4 answers
3,531 views
Using a ruler and a pair of compasses only (I) construct a triangle XYZ such that XY =8cm and angle YXZ =ANGLE ZYX =45 DEGREES .
4 answers
1,467 views
gender issues applied to learning and development
Boys’ stereotypes in k-12 to Grade 2 . How these issues will affect boys’
2 answers
491 views
How do you prove area of a circle?
Integrate an incremental area dArea = r dr dTheta from r=0 to R, and Theta from zero to 2PI
1 answer
541 views
According to Wikipedia, "the problems which are purportedly caused by immigrants equally exist amongst native-born populations
4 answers
538 views
"Immigrants have frequently been accused of taking jobs from "real" Americans. Politicians who oppose immigrants often use this
5 answers
638 views
What is the difference between a totalitarian and a communist government? Thank you!
6 answers
337 views
Please let me know if my answer to the following question is correct.
Question: 25 mL of standardized 0.45 mol/L NaOH is titrated
3 answers
830 views
Please let me know if my answer to the following question is correct.
Question: What is the concentration of a weak base if its
3 answers
796 views
Please judge my answer:
Question: 24 mL of 0.39 mol/L acetic acid is titrated with a standardized 0.33 mol/L KOH solution.
2 answers
681 views
Please judge my answer, thank you
Question: What is the pH of a 1.24 mol/L solution of HCN(aq) if its Ka = 6.2 x 10-10? Answer:
2 answers
548 views
Please judge my answer
Question:A solution of AgNO3 (45 mL/0.45 M) was mixed with solution of NaCl (85 mL/1.35 x 10-2 M) a)
2 answers
1,101 views
Question:A solution of AgNO3 (45 mL/0.45 M) was mixed with solution of NaCl (85 mL/1.35 x 10-2 M)
a) Calculate the ion product of
2 answers
544 views
If an angle is 1 radian, what is the arc length in radians?
2 answers
640 views
If an angle is pie radians, what is the arc length in radians?
2 answers
1,031 views
Work out the following identities
a) sin theta/cos theta b) tan theta cos theta
1 answer
368 views
Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm
1 answer
462 views
Please answer b)only
a) If a triangle has angles of 35 and 65 degrees, what is the measurment of the third angle? Is it a right
3 answers
845 views
Give the phase shift in radians (along x) of f (x) = sin (x - 3pi/5
1 answer
403 views
Give the phase shift in radians (along x) of f (x) = sin(x plus 4t+3/7)
2 answers
654 views
This is a book review that I have wrote for Jane Eyre by Charlotte Bronte. Could you please check if I have any obvious mistakes
6 answers
604 views
The midpoint of line segment AB is (1,2). The coordinates of A are (-3,6). Find the coordinates of B.
I know how to figure out
3 answers
1,858 views
I am having trouble with getting focused on WANTING to do my schoolwork. I want good grades and
1 answer
197 views
I am having trouble with getting focused on WANTING to do my schoolwork. I want good grades and I am just not motivated!!
2 answers
202 views
Which product equals 3t-12?
a. 4(t-3) b. (4-t)3 c. 3(t-4) d. (3-t)4
3 answers
394 views
What is the boiling point of heaxane?
1 answer
318 views
What are the balanced equation for the following reactions:
HCl and Sodium Hydrogen Carbonate HCl and Copper oxide HCl and
2 answers
530 views
How much would 3.45* 10^21 C12H22 O11 molecules weigh
2 answers
528 views
What is the chemical equation for:
1. Cyclohexane and Potassium Manganate VII 2. Cyclohexen and Potassium Manganate VII
2 answers
689 views
what are the indefinite pronouns
1 answer
318 views
Under what conditions does |proj of a on b| = |proj of b on a| for two non zero vectors? Show why.
1 answer
346 views
What conditions must be satisfied by vectors u and v for this to be true?
|u + v| >|u - v|
1 answer
382 views
What is the point of view of the followng quote from the story Journey
"you turn onto this road, which winds among the foothills
1 answer
442 views
Write a scalar equation of each plane, given its vector equation.
[x,y,z] = [3,7,-5] + s[1,2,-1] + t[1,-2,3]
2 answers
755 views
Write a scalar equation of each plane, given its parametric equations.
x = 3 - 2s + 2t y = 1 + 3s + t z = 5 - s - 2t
2 answers
590 views
Find the distance between the parallel line and plane:
l: r=[2,0,1] + t[1,4,1] pi: 2x - y + 2z = 4
1 answer
291 views
Solve:
20 = 10 (2^x)(ln2)
1 answer
333 views
Determine the equation of the line perpendicular to the tangent line to the function f(x) = 1/2 (e^x)at the point on the curve
1 answer
452 views
How long will it take for the population to reach 10 times its initial level?
y=50(e)^(0.5t)
1 answer
275 views
A ball was tossed into the air. its height, in metres, is given by h(t)= - 4.9t^2 + 6t + 11, where t is time, in seconds.
Write
2 answers
812 views
T or F
Interest payments on Canadian government debts to foreigners are a major reason for our negative current account.
1 answer
806 views
T OR F
A payment made to a Canadian shareholder from an American corporation would be recorded as an invisible import.
3 answers
898 views
T OR F
A rise in Canadian interest rates will boost the dollar's exchange value, reducing domestic price levels.
1 answer
373 views
Two vectors are given by
a = 3.7i + 6.9j, and b = 1.9i + 4.7j. Find (b) a·b = (c) (a + b)·b = (d) the component of a in the
1 answer
301 views
Figure 10-42 shows a uniform disk that can rotate around its center like a merry-go-round. The disk has a radius of 2.00 cm and
4 answers
4,679 views
What is the object of preposition in this sentenc?
Sheepishly, she told her father the story.
3 answers
455 views
A truck is going from 20 km/h to 59 km/h in .20 hours, has an acceleration of what?
3 answers
259 views
Why is it important to simplify radical expressions before adding or subtracting? How is adding radical expressions similar to
2 answers
790 views
I'm a 8th grade student and i need to write a Proffesional Business letter to My 7th grade english Teacher can you help?
4 answers
710 views
I have an exponent properties test tomorrow, its our last one before the final, so its important, but anyways, there is one
5 answers
715 views
What is the area of the irregular shape of a cone if the radius is 7in and the height is 22in?
1 answer
328 views
What is the equation for heat of CuCO3 and heat of Pb(NO3)2.
1 answer
316 views
Consider the function f(x)=8.5x−cos(x)+2 on the interval 0¡Üx¡Ü1 . The Intermediate Value Theorem guarantees that there is
3 answers
717 views
An electrical circuit switches instantaneously from a 2 volt battery to a 20 volt battery 3 seconds after being turned on.
7 answers
5,816 views
A 0.2 ml dose of a drug is injected into a patient steadily for 0.75 seconds. At the end of this time, the quantity, Q, of the
2 answers
843 views
A function f(x) is said to have a removable discontinuity at x=a if:
1. f is either not defined or not continuous at x=a. 2. f(a)
4 answers
2,796 views
Let
If f(x) is a function which is continuous everywhere, then we must have m=________________
3 answers
794 views
Sorry...
Consider the function f(x) = 8.5 x − cos(x) + 2 on the interval 0 ¡Ü x ¡Ü 1. The Intermediate Value Theorem
4 answers
1,956 views
A 0.2 ml dose of a drug is injected into a patient steadily for 0.75 seconds. At the end of this time, the quantity, Q, of the
1 answer
848 views
A 0.2 ml dose of a drug is injected into a patient steadily for 0.75 seconds. At the end of this time, the quantity, Q, of the
4 answers
8,748 views
A function f(x) is said to have a removable discontinuity at x=a if:
1. f is either not defined or not continuous at x=a. 2. f(a)
1 answer
670 views
Let
f(x) = mx-12 if x is less than -5 = x^2 +5x -7 if x is greater than or equal to -5. If f(x) is a function which is continuous
1 answer
361 views
How many milliliters of 0.645 M K2CrO4 are needed to precipitate all the silver in 405 mL of 0.190 M AgNO3 as Ag2CrO4?
3 answers
1,000 views
Decide if the following function f(x) is differentiable at x=0. Try zooming in on a graphing calculator, or calculating the
4 answers
3,627 views
Can someone please explain me how to do this problem?
A 25mL solution of 0.5 M NaOH is titrated until neutralization into a 50mL
3 answers
639 views
Please help me with this one...
What is the oxidizing agent in the following redox reaction: HNO3(aq) + K2CrO4(aq) + Fe(NO3)2(aq)
3 answers
570 views
Let f(x)= (1/x). Use the limit definition of derivative to find f'(x).
My professor's answer is: -1/x but I keep getting: -1/x^2
1 answer
348 views
Let f(x)= (1/x). Use the limit definition of derivative to find f'(x).
My professor's answer is: -1/x but I keep getting: -1/x^2
1 answer
326 views
An astronaut is performing a space walk outside the International Space Station. The total mass of astronaut with her space suit
1 answer
647 views
An astronaut is performing a space walk outside the International Space Station. The total mass of astronaut with her space suit
3 answers
760 views
A cart running on frictionless air tracks is propelled by a stream of water expelled by a gas-powered pressure washer stationed
1 answer
446 views
A cart running on frictionless air tracks is propelled by a stream of water expelled by a gas-powered pressure washer stationed
4 answers
581 views
Find the derivative of f(x)=e^(sin(1))+(sin(1))^x
1 answer
278 views
Find the derivative of f(x)=e^(sin(1))+(sin(1))^x.
1 answer
390 views
The Crab pulsar (m=2.00x10^30 kg) is a neutron star located in the Crab Nebula. The rotation rate of the Crab pulsar is
2 answers
599 views
Find the derivative of
f(x) =cos^-1(x^2) Ok so I'm having a little confusion with the chain rule and I'm not sure if my answer is
4 answers
423 views
Assume you wish to make a box whose base is a rectangle with one side twice as long as the other side and whose volume is 100
1 answer
588 views
sin x= -1
1 answer
345 views
(1+ tan^2x)/(secx)
1 answer
432 views
Solve:
2cos^2 theta - 3cos theta+ 1= 0 interval [0, 2ð)
2 answers
778 views
A jar contains one half of a kilogram of water. How many grams of water does it have?
2 answers
553 views
we are makeing rube goldberg machiens
but are problem is hot to activate the pulley by putting the string in to the fire befor
1 answer
407 views
Help, I can't find the pattern rule for this sequence(eg. -6,-3,2,9,18 and the pattern rule is n squared-7)
The pattern:
9 answers
1,471 views
The president's fast track authority was revoked in _____ but restored in _____.
1.)1978, 1995 2.)1945, 1965 3.)1980, 1987 My
5 answers
361 views
Which of the following statements is incorrect?
1.)Early representative parliaments were elected by the people. 2.)Representation
4 answers
476 views
After the passage of the 19th Amendment, white women _____.
1.)faced the same practical obstacles to voting as blacks did My
6 answers
476 views
How many seven-digit numbers are there when 0 and 1 cannot be the leading number?
1 answer
291 views
What are the differences betwen formal, functional, and perceptional regions?
1 answer
344 views
the scoring of IQ tests is designed so that the scores of the test taking population are normally distributed with a mean of 100
1 answer
416 views
Mike scored 85, 88, 87, 93, 95, 92, and 83 on his math tests. What is the least he can score on the next test if he wants to
1 answer
449 views
List the basic problem of scarcity and how it drives economic decison-making.
Describe the role of factors of production. What is
5 answers
471 views
Need to check answers.
Q1. Find the length of the following segment created by these pairs of endpoints: (0, 1), (0, 7) Answer :
1 answer
416 views
A ball is thrown horizontally from the top of a cliff 20m high. If the initial horizontal velocity is 8.0m/s,find how long it
4 answers
1,829 views
A ball is thrown horizontally from the top of a building 150 meters high. The ball strikes the ground 56 meters horizontally
2 answers
734 views
A ball is thrown horizontally from the top of a building 150 meters high. The ball strikes the ground 56 meters horizontally
2 answers
628 views
A ball is thrown horizontally from the top of a building 150 meters high. The ball strikes the ground 56 meters horizontally
2 answers
586 views
A line in coordinate plane contains the points P(2, -7) and Q(-4, -1). What point is the midpoint of PQ?
2 answers
497 views
Jessica says she can add 1/3"2/6"3/9"4/12"and 5/15 together using mental math.Explain how she can do this.
1 answer
480 views
a man walks 8km North and then 5km in a. direction 60degrees. find its distance from his starting point
5 answers
1,588 views
In which sentence are the italicized words a dangling modifier? A)Flying beneath the cloud, the pilot could see the airport.
2 answers
557 views
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