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Alex

Questions and answers by Alex, page 5

Questions (2,580)

Hello everyoneI have this homework about protection programs can you tell me wat these r. plz The Data protection act The
1. 3 answers
2. 556 views
Find z such that 44.0% of the standard normal curve lies to the left of z.0.151 -0.772 -0.151 -1.519 1.519
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2. 531 views
A person's level of blood glucose and diabetes are closely related. Let x be a random variable measured in milligrams of glucose
1. 4 answers
2. 2,991 views
The pH of a 0.10 M salt solution is found to be 8.10. Determine the Kb and the degree of ionization of the basic ion.
1. 3 answers
2. 539 views
If a square handkerchief has an area of w^2+4w+4feet, what is the length of one side?
1. 1 answer
2. 327 views
What is the outcome/results of the Genocide Rwanda conflict & what are its consequences for the UN?
1. 1 answer
2. 447 views
The length of a rectangular field is 18 m longer than the width. The field is enclosed with fencing and divided into two parts
1. 4 answers
2. 1,918 views
Calculate the cell potential for the electrochemical cell consisting of Ag metal in a 0.500 M AgNO3 solution and Fe metal in a
1. 2 answers
2. 721 views
Choose the one alternative that best completes the statement or answers the question.Solve the problem. Assume that simple
1. 4 answers
2. 1,159 views
how do you find all real and non real solutions to these type of equations?:(x+3)^2 - 81=0 (x+1)(x-2)=18 THANKS!
1. 1 answer
2. 441 views
Your calculator gives an answer of x=1.1578074156, y=2E-13 when using ROOT or ZERO in the graphing mode. Give the coordinates of
1. 2 answers
2. 1,090 views
A rock thrown straight up with a velocity of30 m/s from the edge of a building just misses the building as it comes down. The
1. 3 answers
2. 1,653 views
1. You have 88.8 mL of 2.50 M solution of Na2CrO4 (aq). You have 125 mL of a 2.50 M solution of AgNO3 (aq). Calculate the
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2. 2,158 views
solve for ra+ar=b+r Help! Thank you.
1. 3 answers
2. 350 views
how do you graph the function...f(x)=2^x over the interval -2 is less than or equal to x is less than or equal to 3. Help
1. 1 answer
2. 351 views
Name two states that extend futher south than louisiana
1. 4 answers
2. 581 views
What is the least common multiple of 35, 70, 140
1. 3 answers
2. 254 views
On one day the value of $1.00 U.S. was equivalent to 0.77 euro. On the same day $1.00 U.S. was equivalent to $1.24 Canadian.
1. 2 answers
2. 789 views
A sample of 8.44 grams of NaOH is dissolved into 536 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then
1. 2 answers
2. 685 views
Some islands are of the coast of Californa.What is th sbject and prepositio in this sntence?
1. 1 answer
2. 315 views
Use the fact that the speed of light in a vacuum is about 3.00 x 10^8 m/s to determine how many kilometers a pulse from a laser
1. 4 answers
2. 687 views
• Create a timeline of four to six significant events that occurred during World War II.o Include the following in your
1. 2 answers
2. 595 views
factor5x^2-35+60
1. 1 answer
2. 321 views
two ropes are attached to a 200. kg sled. A 490. newton dog attached to on eo the ropes applies a force of 300. N b north of the
1. 2 answers
2. 524 views
a)What is the theoretical yield for this reaction under the given conditions?b)What is the percent yield for this reaction under
1. 2 answers
2. 610 views
Find the area of the surface generated by revolving the curve y =(x + 3)^1/2, 2 ≤ x ≤ 4 about the x-axis.
1. 3 answers
2. 594 views
Simplify the rational expression.(45y-9xy)/(x^2y-25y) I got an answer of 9y/y(x+5) but it seems to be wrong. Can anyone solve
1. 10 answers
2. 526 views
Simplify the rational expression.(45y-9xy)/(x^2y-25y) I got an answer of 9(5-9x)/((x-5)(x+5)) but it seems to be wrong. Can
1. 4 answers
2. 528 views
how did cultures throughout history attempt to explain events such as volcano eruptions, earthquakes, and ecipses?
1. 2 answers
2. 520 views
What are some of the social issues in today's society?I'm supposed to make an Advocacy speech to effect positive changes on a
1. 2 answers
2. 1,006 views
What are the key elements of the scientific method and how dose this method relate to economic principles and laws?
1. 1 answer
2. 1,060 views
Could someone help me with this questionSimplify the rational expression. (3x^2y+9xy^2-12y^3)/(36x^3y-27x^2y^2-9xy^3)
1. 1 answer
2. 822 views
Could someone help me with this questionSimplify the rational expression. (3x^2y+9xy^2-12y^3)/(36x^3y-27x^2y^2-9xy^3)
1. 2 answers
2. 520 views
Tungsten is a dense metal that is used to make the filaments in incandescent light bulbs. A piece of tungsten has a volume of
1. 3 answers
2. 550 views
Please help I am 11 and lost.y question is a piece of tungsten has a volume of 5.2cubic centimeters and and mass of 100 grams.
1. 3 answers
2. 392 views
Add and subtract the rational expressions as indicated. Be sure to express your answer in simplest form((9)/(7x)) + ((1)/(2y))
1. 2 answers
2. 506 views
Calculate the molarity of a solution made by dissolving 0.0715 mol Na2SO4 in enough water to form 550 mL of solution.While we're
1. 3 answers
2. 1,015 views
What mass of NaOH is required to precipitate all the Fe2+ ions from 52.0 mL of 0.200 M Fe(NO3)2 solution?
1. 4 answers
2. 1,462 views
Express the following in simplest radical form. All variables represent positive real numbers.square root of 80a^2b divided by
1. 2 answers
2. 986 views
Have you ever wondered what to do with your unused pet while on vacation? Do you feel bad about just dumping it in some airport
1. 1 answer
2. 410 views
Have you ever wondered what to do with your unused pet while on vacation? Do you feel bad about just dumping it in some airport
1. 1 answer
2. 466 views
A Borg cube starship is zooming past Earth with a speed v=0.97c as shown. The cube has side lengths of 3.03 km. What is its
1. 3 answers
2. 374 views
Please help on this: ^ means exponentSimplify 48y^6z^0 ___________ -8y^6 z^2
1. 3 answers
2. 354 views
Simplify by removing factors of 12w-4/2w
1. 3 answers
2. 390 views
Find the LCM of this6^4c^9, 3a^3c^7, 14a^8c^7
1. 3 answers
2. 377 views
Find all numbers for which the rational expression is undefined.m^3-8m / m^2-25
1. 1 answer
2. 421 views
add, simplify if possible.z+r/zr^2 + 8z+r/z^2r
1. 1 answer
2. 322 views
Monochromatic light strikes a diffraction grating at normal incidence before illuminating a screen 1.81 m away. If the
1. 1 answer
2. 937 views
A laser emitting light of wavelength 580 nm is incident on a diffraction grating. What is the maximum number of lines per
1. 2 answers
2. 995 views
A skier is gliding along at on horizontal, frictionless snow. He suddenly starts down a incline. His speed at the bottom is .Wha
1. 2 answers
2. 488 views
A skier is gliding along at on horizontal, frictionless snow. He suddenly starts down a incline. His speed at the bottom is .Wha
1. 2 answers
2. 475 views
The materials for each feeder cost $6, and they sell an average of 20 per week at a price of $10 each. They conduct a survey and
1. 1 answer
2. 381 views
A billiard ball of mass m = 0.250 kg hits the cushion of a billiard table at an angle of θ1 = 63.4° at a speed of v1 = 24.8
1. 2 answers
2. 1,277 views
Summary of problemPhotosynthesis uses CO2 & H20 to make C6H12O2. If a plant has 99 grams of CO2 & 68 grams of H2O for
1. 5 answers
2. 594 views
Balance?Cr2O7^2- + C2H4O yields C2H4O2 + Cr^3+ (When I say ^ a number followed by a plus or minus that's the charge)
1. 1 answer
2. 705 views
A golfer imparts a speed of 32.1 m/s to a ball, and it travels the maximum possible distance before landing on the green. The
1. 2 answers
2. 594 views
A manufacturer of a new product for whitening teeth would like to investigate the effects of package design and label
1. 7 answers
2. 2,123 views
If f(x) = 2x − 1 and g(x) = x^2 + 5, find (f of g)(−3) and (g of f)(2).Can anyone help ?
1. 1 answer
2. 256 views
I'm looking a problem in my textbook and I don't understand how it goes from one step to another.It starts out as: (120 *
1. 1 answer
2. 447 views
lim as b approaches infinity of integral of xe^-x^2 from 0 to baka lim b->inf int(0,b) x*e^(-x^2) dx
1. 1 answer
2. 490 views
1. A spinner has four outcomes Three outcomes have the same probability and the fourth is half as likely.2. A spinner has three
1. 2 answers
2. 687 views
A spinner has three outcomes, each half as likely as the one before it.How can I set this up?
1. 1 answer
2. 311 views
Calculate the cell potential for a cell based on the reactionCu(s) + 2Ag+(aq) -> Cu2+(aq) + 2Ag(s) when the concentrations are
1. 3 answers
2. 732 views
A cat chases a mouse across a 1.0 m high table. the mouse steps out og the way, and the cat slides off the table and strikes the
1. 2 answers
2. 704 views
Use the theorem on bounds to establish the best integral bounds for the roots of the equationw^(4)-8w^(3)+2w^(2)+10w-1=0
1. 2 answers
2. 579 views
How do I find the length of the segment AB when A(-4,6) and B(3,-5)
1. 1 answer
2. 441 views
I am doing something called "Mystery word match". you have to combine all three words to make another word.renovate activity
1. 1 answer
2. 430 views
In a standard deck of playing cards there are 13 hearts. If 3 cards are drawn without replacement what's the probibility that
1. 1 answer
2. 392 views
A ball (radius 0.2 m) is rolling on level ground toward an incline. If its velocity is 3 m/s, to what maximum height above the
1. 3 answers
2. 1,054 views
A 550-g ball traveling at 8.0 m/s undergoes a head-on elastic collision with a 250-g ball traveling toward it also at 8.0 m/s.
1. 4 answers
2. 2,685 views
Two children are riding on a merry-go-round. Child A is at a greater distance from the axis of rotation than child B. Which
1. 2 answers
2. 582 views
A car travels 12 km due north and then 26.2 in a direction 0/( that is supposed to be a circle with a line through it)67.3 west
1. 1 answer
2. 674 views
find the sum∑(n/(n+1)!) from n=1 to infinity
1. 1 answer
2. 354 views
ý22xn is between 80 and 85 what is n?
1. 2 answers
2. 598 views
Is the ritalin molecule a polymer?
1. 1 answer
2. 356 views
Solve & plot a graph for the following: F(X)=cos(X)-cos to second power X for the interval negative pi greater than or equal to
1. 1 answer
2. 399 views
Let F be the function defined by F(X)=12X to the 2/3 power minus 4X Find the intervals of which F is increasing? Find X & Y
1. 4 answers
2. 2,320 views
Solve & plot a graph for the following: F(X)=cos(X)-cos to second power X for the interval negative pi greater than or equal to
1. 1 answer
2. 1,033 views
a police helicopter is flying at 200 km/hr at a constant altitude of 1 km above a straight road. The pilot uses radar to
1. 2 answers
2. 680 views
For the following electronic transitions in the hydrogen atom, calculate the energy, frequency, and wavelength of the associated
1. 3 answers
2. 789 views
Hey jiskha.Microwave ovens emit microwave radiation that is absorbed by water. The absorbed radiation is converted to heat that
1. 3 answers
2. 880 views
Hey jiskha.Microwave ovens emit microwave radiation that is absorbed by water. The absorbed radiation is converted to heat that
1. 3 answers
2. 962 views
What is a enantiomer?
1. 1 answer
2. 322 views
could someone please help me solve this problem...e^x - 12e^(-x) - 1
1. 1 answer
2. 465 views
In the figure below, two point particles are fixed on an x axis separated by a distance d. Particle A has mass mA and particle B
1. 1 answer
2. 1,131 views
When served at 200 km/h (124 mph), what is the equivalent weight exerted on the tennis ball?
1. 3 answers
2. 394 views
Is the exact area of a circle with an 16 m radius 32 m squared? And what would be the approximate area be?
1. 1 answer
2. 340 views
There's a circle with that has a dot in the middle with two line going to the left and right that's is 16 m. I have to find the
1. 2 answers
2. 859 views
the probability of the home team's winning a basketball game is 80% describe a simulation of the probability the home team will
1. 3 answers
2. 777 views
I'm doing a song about Italian Immigration from the 1800's for a project nd I'm kind of stuck. Can someone help me out? What I
1. 1 answer
2. 468 views
Why does tension in a rope increase as the rotational speed of a ball increases?
1. 1 answer
2. 368 views
Jessica, I am aslo doing my exam but I am really having problems with number 4 in part B exam # 40976200 was wondering if you
1. 2 answers
2. 595 views
A toddler is on a playground swing. When she is all the way on the right, then ...her tangential acceleration is maximal to the
1. 3 answers
2. 386 views
I'm doing a song about Italian Immigration from the 1800's for a project nd I'm kind of stuck. Can someone help me out? What I
1. 5 answers
2. 542 views
12.5 g of KCl (MM = 74.55 g/mol) is dissolved in enough water to make 675 mL of solution. Calculate the molarity of the KCl
1. 2 answers
2. 602 views
a sled mass 50 kg is pulled along snow-covered, flat group. the static friction coefficent is 0.30, and the sliding friction
1. 4 answers
2. 1,265 views
a flight attendant pulls her 75 N flight bag a distance of 325 m along a level airport floor at a constant velocity. the force
1. 3 answers
2. 812 views
Today i got asked to write 3 fact bullets about the 7 aspects of civilization With details from the fertile crescentdose that
1. 1 answer
2. 391 views
If 0.0900 g of a metal, M, reacts with excess hydrochloric acid to form 5.00*10(exp.)-3 moles of hydrogen gas and a solution of
1. 3 answers
2. 631 views
A 100.0 meter long transmission cable is suspended between two towers. If the mass density is 2.00 kg/m and the tension in the
1. 1 answer
2. 515 views

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