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July 1, 2014
Find the critical value za/2 that corresponds to the given confidence level.
96%
2 answers
asked by
Kasey
4,398 views
Consider the following reaction: 4NH3 + 7O2 (arrow) 4NO2 + 6H2O.
A) How many moles of NH3 react with 5.64 mol of O2? B)How many
1 answer
asked by
Apryl
3,929 views
Compute the critical value za/2 that corresponds to a 85% level of confidence.
2 answers
asked by
Kasey
3,380 views
A Gallup poll of 1236 adults showed that 12% of the respondents believe that it is bad luck to walk under a ladder. Consider the
2 answers
asked by
Kasey
3,376 views
Evan is making a table that will be created in the shape of the figure below. The table top is a triangle attached to a
1 answer
asked by
monica
3,323 views
13) Mercury is an environmental pollutant because it can be converted by certain bacteria into the very poisonous substance
3 answers
asked by
Luke
2,594 views
One of the ways Robert nourishes his aggressive nature is by
A. Playing violent video games B. Playing quarterback on the
5 answers
asked by
Cassie
2,542 views
In a hardware store the ratio of shovels to rakes is 3:5. If there are 10 more rakes than shovels, how many rakes are there in
1 answer
asked by
Anne
2,297 views
A car moves with a speed of 30km/hr for half an hr,25km/hr for 1he and 40km/hr for 2hrs. What is the average speed of car?
3 answers
asked by
mira
2,238 views
24) It was found that a 20.00 mL portion of a solution of oxalic acid, H2C2O4, requires 6.69 mL of 0.200 M K2Cr2O7 for complete
2 answers
asked by
Luke
1,918 views
Sodium carbonate, Na2CO3(s), can be prepared by heating sodium bicarbonate, NaHCO3(s).
2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)
1 answer
asked by
Anonymous
1,797 views
An isosceles triangle has a base 9.6 units long. If the congruent side lengths have measures to the first decimal place, what is
1 answer
asked by
sara
1,753 views
A 20 kg box approaches the foot of a 30 degree inclined plane with a speed of 10 m/s. the coefficient of friction between the
2 answers
asked by
Clair
1,723 views
A dress is on sale for a 15% discount, meaning 85% of the price remains. If the sale price of the dress is $51, then the
3 answers
asked by
Kimberly
1,664 views
Many states are carefully considering steps that would help them collect sales taxes on items purchased through the Internet.
2 answers
asked by
Kasey
1,614 views
A solution of calcium nitrate, Ca(NO3)2, reacts with a solution of ammonium fluoride, NH4F, to form solid calcium fluoride,
1 answer
asked by
Joe
1,560 views
Which of the following statements is NOT true about the benefits of intermediate sanctions?
A. Channeling offenders into
1 answer
asked by
Pat
1,537 views
The equation y=5sin(3x-4) where y is in millimeters,x is in metres and t in seconds,represent motion. Find;
Frequency Period
5 answers
asked by
onyeakagbusi Gift
1,430 views
If someone gave u a tonnie,three quarters,a nickel,two dimes and a penny.how much money did they give u
2 answers
asked by
ope
1,422 views
Use the Trapezoidal Rule, the Midpoint Rule, and Simpson's Rule to approximate the given integral with the specified value of n.
1 answer
asked by
sara
1,396 views
What is the definition of a hook?
a. a topic sentence that states the main point b. an elaborating sentence that provide details
1 answer
asked by
Ashley
1,331 views
18) Aspirin is a monoprotic acid called acetylsalicylic acid. Its formula is HC9H7O4. A certain pain reliever was analyzed for
1 answer
asked by
Luke
1,322 views
A loan has a due date of December 20. If it is made on September 19, for how many days is the loan?
1 answer
asked by
Sherry
1,288 views
In the spectrum of a specific element, there is a line with a wavelength of 486 nm. Use the Rydberg equation to calculate the
1 answer
asked by
Sarah
1,266 views
What is the interpretation of the journey by Duane big eagle
1 answer
asked by
Sara
1,265 views
In a silphuric acid (H2SO4)-Sodium Hydroxide (NaOH) acid-base titration, 17.3mL of 0.126M NaOH is needed to neutralize 25mL of
2 answers
asked by
Dawn
1,233 views
12) Naturally occurring argon is composed of 0.3365% of 36Ar (atomic mass, 35.9675 u), 0.0632% of 38Ar (atomic mass, 37.9627 u),
3 answers
asked by
Luke
1,211 views
Read the paragraph.
The snow began falling early in the morning. Tiny, weightless crystals. By early afternoon, the ground was
1 answer
asked by
Ashley
1,210 views
Find the critical values x2L and x2R that correspond to the given confidence level and sample size.
99%: n=23
0 answers
asked by
Kasey
1,202 views
an elevator is moving up at a rate of one meter per second. the elevator is now at the street level. when was the elevator five
2 answers
asked by
jamjam
1,158 views
Air pressure at the surface of a fresh water lake near sea level is about 10^5 N/m2. At approximately what depth below the
1 answer
asked by
katherine
1,138 views
A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and
2 answers
asked by
Kasey
1,128 views
When reviewing the procedure the student found that 4.912 x 10-1 M barium nitrate solution had been used instead of that in the
1 answer
asked by
Steve
1,000 views
The debate team has m members. Each
member sold 20 coupon books as a fundraiser. Write a variable expression that shows the
4 answers
asked by
Anonymous
995 views
A theological argument offered by Donne in "Death Be Not Proud" may be summarized as?
A. chance and fate rule all. B. life is
17 answers
asked by
Unmei
982 views
help! where do i begin with this problem...in one area, monthly incomes of technology related workers have a standard deviation
0 answers
asked by
carmen
982 views
The distribution of IQ scores is a nonstandard normal distribution with a mean of 100 and a standard deviation of 15. What are
1 answer
asked by
Kasey
965 views
use 100 square grids
to shade 1.5 and what fraction would remain un shaded
1 answer
asked by
Noor
958 views
A dilute solution of hydrochloric acid with a mass of 614.86 g and containing 0.33004 mol of HCl was exactly neutralized in a
1 answer
asked by
Sarah
857 views
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 320 babies were born,
0 answers
asked by
Kasey
826 views
The velocity acquired by a body moving with uniform acceleration is 12m/s in 2 seconds and 18m/s in 4 seconds.Find the initial
1 answer
asked by
Aheli Chowdhary
798 views
Assume that a procedure yields a binomial distribution with a trial repeated n times. Use a binomial probabilities table to find
0 answers
asked by
Kasey
788 views
Which of the following is an inertial frame of reference?
a) a child on a moving swing observes the child next to them moving in
0 answers
asked by
Liz
785 views
calculate the total amount of work performed in 5 minutes of exercise on the cycle ergometer given the following flywheel 25n
1 answer
asked by
leroy
783 views
the temperature has been changing at a rate of-2 degrees fareinheit per hour and is predicted to continue at this rate. The
1 answer
asked by
jamjam
778 views
14) A lawn fertilizer is rated as 7.04% nitrogen, meaning 7.04 g of N in 100 g of fertilizer. The nitrogen is present in the
1 answer
asked by
Luke
748 views
A solution of calcium nitrate, Ca(NO3)2, reacts with a solution of ammonium fluoride, NH4F, to form solid calcium fluoride,
1 answer
asked by
Joe
746 views
You take a 10 N block and lift it 1 meter vertically from the floor and then place it back down on the floor. How much work do
1 answer
asked by
Macy
745 views
Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to
0 answers
asked by
Kasey
744 views
How many grams of water could have its temperature raised from 25 ºC (room temperature) to 100 ºC (the boiling point of water)
1 answer
asked by
joshua
740 views
Using the gas laws, calculate the new volume of methane gas at STP, which has escaped from a landfill and been captured at an
3 answers
asked by
John
740 views
A solution of calcium nitrate, Ca(NO3)2, reacts with a solution of ammonium fluoride, NH4F, to form solid calcium fluoride,
2 answers
asked by
Joe
732 views
A particle (m=3*10^-6 g, q=5*10^-6 C) moves in a uniform magnetic field given by (60j) mT. At t=0 the velocity of the particle
0 answers
asked by
monique
717 views
2. You're an IT professional, and your boss has asked you to prepare a briefing for senior staff on the comparative advantages
1 answer
asked by
lily
713 views
1. what happens to the force required for an object to maintain circular motion if the period is halved (goes twice as fast
0 answers
asked by
Liz
712 views
A balloon is released and flies straight up for 4 miles, and then the wind blows it west for 4 miles. Find the distance between
1 answer
asked by
hunter
707 views
A student synthesized 6.895 g of barium iodate monohydrate, Ba(IO3)2*H2O by adding 30.00 mL of 5.912 x 10-1 M barium nitrate,
1 answer
asked by
Chris
704 views
In the sentence - "Tom could see the anger in Mr. Adams' face."
is "Mr. Adams' face" a compound noun? I know Mr. Adams' is a
3 answers
asked by
Erik
699 views
An investor has $1400 to invest, and his financial analyst recommends two types of junk bonds. The A bonds have a 6% annual
0 answers
asked by
Kasey
693 views
In a triangle ABC, PQ is the midpoint of AB and AC. PQ = 2cm, BC =3cm. The area of trapezium PQCB = 10cm^2.
If the area of
1 answer
asked by
Christopher
688 views
The midpoint of two points is (6,2). If one of the points is (3,5), find the other point.
x_m = (x_1 + x_2)/2 6 = (3 + x_2) / 2 =
2 answers
asked by
Anonymous
658 views
A block of mass 21.5 kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a
0 answers
asked by
val
657 views
A solution of calcium nitrate, Ca(NO3)2, reacts with a solution of ammonium fluoride, NH4F, to form solid calcium fluoride,
1 answer
asked by
Joe
651 views
what is 8,618,175 more than the sum of 149,347 and 897,956?
what is 2,194,871 plus 986,732 increased by 489,549?
1 answer
asked by
yhury
650 views
You worried about math last year for 300,000 minutes. this year you will worry about math for only 60 minutes.What percent
1 answer
asked by
Johnny
640 views
Find the intersection of two lines. i have the answer just please tell me how it was made
4x-3y-4=0 , 4x+2y+5=0 -5y/-5 = 9/-5 y=
1 answer
asked by
Joy
633 views
A mixture is prepared by adding 28.6 mL of 0.169 M Na3PO4 to 39.7 mL of 0.255 M Ca(NO3)2. What mass of Ca3(PO4)2 will be formed?
1 answer
asked by
joshua
621 views
Fiber-optic cables are used widely for internet wiring, data transmission, and surgeries. When light passes through a
1 answer
asked by
Tjae
582 views
1.Discuss the significance of industrial development.
2.Adduce solutions to the problems of manufacturing industries on tropical
2 answers
asked by
john kelechi
558 views
A block of mass 21.5 kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a
0 answers
asked by
val
555 views
The drug is a salt form while a molecular weight of 181.6G/mol. She needs a concentration of the stock solution of 100mM and she
4 answers
asked by
Totally Lost
548 views
One of the ways most people relieve stress is to reward themselves with sweets. According
to one study in Food Technology, 46
0 answers
asked by
Alfie
544 views
what force parallel to an inclined plane of height 3 meter and base 4 meter can just support a block mass 500 gram on the plane
1 answer
asked by
Adarsh
539 views
A vertical load W is applied to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial
0 answers
asked by
SD TRUSS PROBLEM WITH THE METHOD OF JOINTS
524 views
A girl inside a room is looking at the window and sees a volleyball passing outside
the window of width w and height d. The ball
0 answers
asked by
talal
516 views
how can i learn math fast.can you show me
2 answers
asked by
salome
499 views
Plug in the information into the Distance Formula:
D = sqrt((x_2 - x_1)^2 +(y_2 - y_1)^2)
1 answer
asked by
hunter
480 views
what is 6 divided by 8.4
1 answer
asked by
cool
466 views
The endpoints of a line segment are (-2, 5) and (8, 13), determine the midpoint of the line.
x_m = (x_1 + x_2)/2
1 answer
asked by
hunter
464 views
molecular wt of glucose is 180.14g/mole. What is the quanity of glucose in a 500mL IV solution of a 5% dextrose normal saline
1 answer
asked by
Anonymous
464 views
an initial pressure of 1.50atm, an initial volume of 30.0L and an initial temperature of 40.0C.
1 answer
asked by
John
460 views
Homework:(please help)
Determine all prime numbers that divide 50 factorial.
1 answer
asked by
faru
445 views
where can I find compounds that are basic in nature that are inorganic bases and organic bases?
1 answer
asked by
Anonymous
426 views
How do you ask..."have you been studying your driver's manual?" in Spanish
2 answers
asked by
Mackenzie
425 views
HOW CAN YOU TELL WETHER 2 CHARGES HAVE THE SAME MAGNITUDE
1 answer
asked by
TYDUS
408 views
some Problems based on heron's formula at home
1 answer
asked by
Anonymous
405 views
how can you change 1/2 to a mixed number?
1 answer
asked by
cool
394 views
twelve boys spent 420 for their electrical project. what is the share of each boy if they divided the expenses equally?
1 answer
asked by
Jeanelle Macario
390 views
Find the distance between the following points: (-2,4),(3,2)
1 answer
asked by
terrie
383 views
57865-______+23129=48675
2 answers
asked by
josephine
355 views
how much sale tax in due for a payment of 993.91
1 answer
asked by
jennifer
343 views
4/3 multiply by 0 multiply by 1/2
1 answer
asked by
Noor
310 views
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