Questions and answers by

Abigail

Questions (207)

Find the sum of all values of a such that the point (a,7) is 3 sqrt 5 from the point (2,1).
1. 2 answers
2. 584 views
y>-5/3x+3Please help me i need some guidance
1. 2 answers
2. 433 views
Janel walks for x minutes and runs for y minutes for a total of 30 minutes of exercise. Ramal walks for 3 times as long as Janel
1. 2 answers
2. 588 views
I need help with my research paper outline.(ARE THERE ANY MISTAKES?)According to (author/source)Michael Martinez and Jaqueline
1. 1 answer
2. 533 views
My daughter has a worksheet due tomorrow and is stressing because she read the book Dragonwings and didn't get it at all and
1. 2 answers
2. 751 views
Abby delivers twice as many newspapers as Jillian, and Brandy delivers 50 more papers than Abbey. How many papers does each
1. 3 answers
2. 1,066 views
The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head,
1. 1 answer
2. 845 views
An airplane is flying with a velocity of 220 m/s at an angle of 30.0° with the horizontal, as the drawing shows. When the
1. 2 answers
2. 1,397 views
In which sentence are the italicized words a dangling modifier? A)Flying beneath the cloud, the pilot could see the airport.
1. 1 answer
2. 626 views
a man walks 8km North and then 5km in a. direction 60degrees. find its distance from his starting point
1. 4 answers
2. 1,715 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. 1 answer
2. 548 views
A line in coordinate plane contains the points P(2, -7) and Q(-4, -1). What point is the midpoint of PQ?
1. 1 answer
2. 562 views
A ball is thrown horizontally from the top of a building 150 meters high. The ball strikes the ground 56 meters horizontally
1. 1 answer
2. 667 views
A ball is thrown horizontally from the top of a building 150 meters high. The ball strikes the ground 56 meters horizontally
1. 1 answer
2. 705 views
A ball is thrown horizontally from the top of a building 150 meters high. The ball strikes the ground 56 meters horizontally
1. 1 answer
2. 831 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
1. 3 answers
2. 1,958 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. 1 answer
2. 512 views
List the basic problem of scarcity and how it drives economic decison-making.Describe the role of factors of production. What is
1. 4 answers
2. 544 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. 1 answer
2. 514 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. 1 answer
2. 504 views
What are the differences betwen formal, functional, and perceptional regions?
1. 1 answer
2. 416 views
How many seven-digit numbers are there when 0 and 1 cannot be the leading number?
1. 0 answers
2. 339 views
After the passage of the 19th Amendment, white women _____.1.)faced the same practical obstacles to voting as blacks did My
1. 5 answers
2. 556 views
Which of the following statements is incorrect?1.)Early representative parliaments were elected by the people. 2.)Representation
1. 3 answers
2. 558 views
The president's fast track authority was revoked in _____ but restored in _____.1.)1978, 1995 2.)1945, 1965 3.)1980, 1987 My
1. 4 answers
2. 416 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:
1. 8 answers
2. 1,642 views
we are makeing rube goldberg machiensbut are problem is hot to activate the pulley by putting the string in to the fire befor
1. 1 answer
2. 481 views
A jar contains one half of a kilogram of water. How many grams of water does it have?
1. 1 answer
2. 642 views
Solve:2cos^2 theta - 3cos theta+ 1= 0 interval [0, 2ð)
1. 1 answer
2. 834 views
(1+ tan^2x)/(secx)
1. 1 answer
2. 483 views
sin x= -1
1. 1 answer
2. 389 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. 0 answers
2. 657 views
Find the derivative off(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
1. 3 answers
2. 508 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
1. 1 answer
2. 710 views
Find the derivative of f(x)=e^(sin(1))+(sin(1))^x.
1. 1 answer
2. 449 views
Find the derivative of f(x)=e^(sin(1))+(sin(1))^x
1. 0 answers
2. 324 views
A cart running on frictionless air tracks is propelled by a stream of water expelled by a gas-powered pressure washer stationed
1. 3 answers
2. 684 views
A cart running on frictionless air tracks is propelled by a stream of water expelled by a gas-powered pressure washer stationed
1. 0 answers
2. 511 views
An astronaut is performing a space walk outside the International Space Station. The total mass of astronaut with her space suit
1. 2 answers
2. 880 views
An astronaut is performing a space walk outside the International Space Station. The total mass of astronaut with her space suit
1. 0 answers
2. 745 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. 1 answer
2. 389 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. 1 answer
2. 434 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)
1. 2 answers
2. 657 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
1. 2 answers
2. 755 views
Decide if the following function f(x) is differentiable at x=0. Try zooming in on a graphing calculator, or calculating the
1. 2 answers
2. 3,786 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?
1. 2 answers
2. 1,091 views
Letf(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. 1 answer
2. 409 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. 0 answers
2. 763 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. 1 answer
2. 8,895 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. 0 answers
2. 949 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
1. 2 answers
2. 2,047 views
LetIf f(x) is a function which is continuous everywhere, then we must have m=________________
1. 2 answers
2. 874 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. 3 answers
2. 2,921 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. 1 answer
2. 952 views
An electrical circuit switches instantaneously from a 2 volt battery to a 20 volt battery 3 seconds after being turned on.
1. 5 answers
2. 5,978 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
1. 2 answers
2. 817 views
What is the equation for heat of CuCO3 and heat of Pb(NO3)2.
1. 0 answers
2. 362 views
What is the area of the irregular shape of a cone if the radius is 7in and the height is 22in?
1. 0 answers
2. 381 views
I have an exponent properties test tomorrow, its our last one before the final, so its important, but anyways, there is one
1. 4 answers
2. 820 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?
1. 3 answers
2. 792 views
Why is it important to simplify radical expressions before adding or subtracting? How is adding radical expressions similar to
1. 1 answer
2. 929 views
A truck is going from 20 km/h to 59 km/h in .20 hours, has an acceleration of what?
1. 2 answers
2. 311 views
What is the object of preposition in this sentenc?Sheepishly, she told her father the story.
1. 2 answers
2. 510 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
1. 2 answers
2. 4,793 views
Two vectors are given bya = 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. 0 answers
2. 352 views
T OR FA rise in Canadian interest rates will boost the dollar's exchange value, reducing domestic price levels.
1. 1 answer
2. 433 views
T OR FA payment made to a Canadian shareholder from an American corporation would be recorded as an invisible import.
1. 2 answers
2. 960 views
T or FInterest payments on Canadian government debts to foreigners are a major reason for our negative current account.
1. 0 answers
2. 891 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
1. 1 answer
2. 863 views
How long will it take for the population to reach 10 times its initial level?y=50(e)^(0.5t)
1. 0 answers
2. 331 views
Identify the coordinates of any local extrema of the function y=e^x - e^(2x).
1. 1 answer
2. 3,645 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. 1 answer
2. 530 views
Solve:20 = 10 (2^x)(ln2)
1. 1 answer
2. 370 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. 1 answer
2. 344 views
Write a scalar equation of each plane, given its parametric equations.x = 3 - 2s + 2t y = 1 + 3s + t z = 5 - s - 2t
1. 1 answer
2. 663 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]
1. 1 answer
2. 839 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. 1 answer
2. 513 views
What conditions must be satisfied by vectors u and v for this to be true?|u + v| >|u - v|
1. 0 answers
2. 445 views
Under what conditions does |proj of a on b| = |proj of b on a| for two non zero vectors? Show why.
1. 1 answer
2. 407 views
what are the indefinite pronouns
1. 0 answers
2. 376 views
What is the chemical equation for:1. Cyclohexane and Potassium Manganate VII 2. Cyclohexen and Potassium Manganate VII
1. 0 answers
2. 785 views
How much would 3.45* 10^21 C12H22 O11 molecules weigh
1. 1 answer
2. 586 views
What are the balanced equation for the following reactions:HCl and Sodium Hydrogen Carbonate HCl and Copper oxide HCl and
1. 1 answer
2. 613 views
What is the boiling point of heaxane?
1. 1 answer
2. 377 views
Which product equals 3t-12?a. 4(t-3) b. (4-t)3 c. 3(t-4) d. (3-t)4
1. 2 answers
2. 453 views
I am having trouble with getting focused on WANTING to do my schoolwork. I want good grades and I am just not motivated!!
1. 2 answers
2. 279 views
I am having trouble with getting focused on WANTING to do my schoolwork. I want good grades and
1. 1 answer
2. 269 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
1. 1 answer
2. 2,003 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
1. 5 answers
2. 710 views
Give the phase shift in radians (along x) of f (x) = sin(x plus 4t+3/7)
1. 1 answer
2. 730 views
Give the phase shift in radians (along x) of f (x) = sin (x - 3pi/5
1. 0 answers
2. 475 views
Please answer b)onlya) If a triangle has angles of 35 and 65 degrees, what is the measurment of the third angle? Is it a right
1. 2 answers
2. 975 views
Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm
1. 1 answer
2. 557 views
Work out the following identitiesa) sin theta/cos theta b) tan theta cos theta
1. 1 answer
2. 433 views
If an angle is pie radians, what is the arc length in radians?
1. 1 answer
2. 1,116 views
If an angle is 1 radian, what is the arc length in radians?
1. 1 answer
2. 725 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
1. 1 answer
2. 638 views
Please judge my answerQuestion:A solution of AgNO3 (45 mL/0.45 M) was mixed with solution of NaCl (85 mL/1.35 x 10-2 M) a)
1. 1 answer
2. 1,206 views
Please judge my answer, thank youQuestion: What is the pH of a 1.24 mol/L solution of HCN(aq) if its Ka = 6.2 x 10-10? Answer:
1. 1 answer
2. 642 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.
1. 1 answer
2. 780 views