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. 549 views
y>-5/3x+3Please help me i need some guidance
1. 2 answers
2. 398 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. 541 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. 494 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. 712 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. 1,006 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. 805 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. 1,362 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. 600 views
a man walks 8km North and then 5km in a. direction 60degrees. find its distance from his starting point
1. 4 answers
2. 1,652 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. 522 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. 534 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. 621 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. 665 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. 781 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. 1,906 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. 464 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. 523 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. 486 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. 459 views
What are the differences betwen formal, functional, and perceptional regions?
1. 1 answer
2. 386 views
How many seven-digit numbers are there when 0 and 1 cannot be the leading number?
1. 0 answers
2. 314 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. 517 views
Which of the following statements is incorrect?1.)Early representative parliaments were elected by the people. 2.)Representation
1. 3 answers
2. 514 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. 391 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. 1,575 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. 449 views
A jar contains one half of a kilogram of water. How many grams of water does it have?
1. 1 answer
2. 603 views
Solve:2cos^2 theta - 3cos theta+ 1= 0 interval [0, 2ð)
1. 1 answer
2. 817 views
(1+ tan^2x)/(secx)
1. 1 answer
2. 456 views
sin x= -1
1. 1 answer
2. 363 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. 623 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. 466 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. 655 views
Find the derivative of f(x)=e^(sin(1))+(sin(1))^x.
1. 1 answer
2. 422 views
Find the derivative of f(x)=e^(sin(1))+(sin(1))^x
1. 0 answers
2. 302 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. 630 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. 473 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. 826 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. 690 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. 360 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. 400 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. 624 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. 694 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. 3,709 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. 1,043 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. 390 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. 723 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. 8,823 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. 898 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. 2,003 views
LetIf f(x) is a function which is continuous everywhere, then we must have m=________________
1. 2 answers
2. 844 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. 2,863 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. 901 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. 5,910 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. 777 views
What is the equation for heat of CuCO3 and heat of Pb(NO3)2.
1. 0 answers
2. 338 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. 357 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. 766 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. 758 views
Why is it important to simplify radical expressions before adding or subtracting? How is adding radical expressions similar to
1. 1 answer
2. 862 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. 286 views
What is the object of preposition in this sentenc?Sheepishly, she told her father the story.
1. 2 answers
2. 489 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. 4,741 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. 335 views
T OR FA rise in Canadian interest rates will boost the dollar's exchange value, reducing domestic price levels.
1. 1 answer
2. 403 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. 939 views
T or FInterest payments on Canadian government debts to foreigners are a major reason for our negative current account.
1. 0 answers
2. 854 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. 840 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. 311 views
Identify the coordinates of any local extrema of the function y=e^x - e^(2x).
1. 1 answer
2. 3,609 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. 491 views
Solve:20 = 10 (2^x)(ln2)
1. 1 answer
2. 360 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. 322 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. 627 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. 800 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. 489 views
What conditions must be satisfied by vectors u and v for this to be true?|u + v| >|u - v|
1. 0 answers
2. 410 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. 378 views
what are the indefinite pronouns
1. 0 answers
2. 355 views
What is the chemical equation for:1. Cyclohexane and Potassium Manganate VII 2. Cyclohexen and Potassium Manganate VII
1. 0 answers
2. 754 views
How much would 3.45* 10^21 C12H22 O11 molecules weigh
1. 1 answer
2. 569 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. 584 views
What is the boiling point of heaxane?
1. 1 answer
2. 364 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. 424 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. 247 views
I am having trouble with getting focused on WANTING to do my schoolwork. I want good grades and
1. 1 answer
2. 230 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. 1,937 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. 660 views
Give the phase shift in radians (along x) of f (x) = sin(x plus 4t+3/7)
1. 1 answer
2. 684 views
Give the phase shift in radians (along x) of f (x) = sin (x - 3pi/5
1. 0 answers
2. 431 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. 932 views
Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm
1. 1 answer
2. 512 views
Work out the following identitiesa) sin theta/cos theta b) tan theta cos theta
1. 1 answer
2. 398 views
If an angle is pie radians, what is the arc length in radians?
1. 1 answer
2. 1,065 views
If an angle is 1 radian, what is the arc length in radians?
1. 1 answer
2. 683 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. 587 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. 1,155 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. 599 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. 740 views