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john
Questions (2,072)
suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000 use the rule to find the
1 answer
1,850 views
A football kicker can give the ball an initial speed of 25m/s. What are the greatest and least elevation angles at which he can
1 answer
929 views
Table of enthalpy of solution for selected cesium salts
Compound and ΔsolH kJ mol-1: - Cesium bromide: 25.98 - Cesium iodide:
6 answers
870 views
The figure above shows a chain being held on a table with one quarter of its length hanging over the edge. Friction is
0 answers
588 views
A 13 ohm, 35 ohm, and 2k ohmresistor are connected in a series circuit with a 190 V battery. What is the equivalent resistance
1 answer
470 views
1.1 The gametophyte generation in a fern plant changes to the sporophyte generation by A.fertilisation B.melosis C.asexual
0 answers
659 views
What volume (in mL) of 0.55 M Na2SO4 solution is needed to precipitate all the barium, as BaSO4(s), from 15.5 mL of 0.25 M
1 answer
882 views
find the length of an arc of a circle of radius 5.6 cm which subtends an angle of 60 degrees at the centre of the circle.(take
2 answers
1,341 views
How do i find the 12th term of the sequence
36,18,9.... using a formula
4 answers
1,101 views
find the number of terms for the following sequence.
125,109,93,.......-115 i got the answer of 15 terms. How do i get it though
1 answer
534 views
find the missing terms for the following sequence
geometric sequence 96,__,__,__,6
1 answer
698 views
find the 12th term of the sequence
36,18,9....
2 answers
1,120 views
How much heat is produced by the complete reaction of 5.91kg of nitromethane?
1 answer
722 views
15. Identify the sentence in which the underlined pronoun is used incorrectly.
There are only six days left in the school year.
4 answers
4,279 views
Five friends picked 7 pounds of apples. They will share the apples equally. How much will each get?
3 answers
1,413 views
17. Calculate H for the following reaction using Hess law
H2 (g) + Br2 (g) → 2 HBr (g) Experimental information 2 H+ → H2
1 answer
1,218 views
I have 10 letters. My 1st and 2nd letter means not. My 1st to 5th letter means below. My 6th to 10th letter is to stand. In all,
1 answer
546 views
a 50g bullet is shot from a rifle at 900m/s
a) what is the KE of the bullet? b) how much work is done on the bullet if it starts
1 answer
508 views
75 pupils sat for a Science Test. The average score was 58 marks. If the average score of the girls was 62 marks and the average
3 answers
524 views
which of the following molecules will exhibit hydrogen bonding?
a. CH3OCH3 b. HF c. CH4 d. LiH
2 answers
3,142 views
Mary invested $3,750 for 42 months at a simple interest rate of 3.85%. How much interest did she earn?
1 answer
523 views
Evaluate using L'Hopital Rule?
lim as x approaches x from left (1-x)^(3/x)
1 answer
605 views
when 5g of impure sample of CH4 is completely combusted, 9g of H2O was produced.what is the percentage purity of the sample of
1 answer
464 views
what is y=x^2-2x-8 in vertex form?
1 answer
406 views
Hi,
How do I improve my math skills? I can't calculate in my head (I.e 2x43), I would actually have to write it down to solve it.
1 answer
636 views
1.. Write the decimal three and four thousandths.
2.. the ratio of apples to bananas is 4:1.
5 answers
732 views
At a certain location in the Coachella Valley of California the elevation is 215 feet below sea level.
Clara wrote this elevation
2 answers
768 views
3/8jof the cast in a musical hE TO SING. WHAT FRACTION OF THE CASt DOES not have to sing?
1 answer
425 views
how many terms are there in an arithmetric sequence if it has a common difference of 3 , a last term of 30 and the sum of its
1 answer
493 views
If a rubber tire having a weight of 18.0lbs requires a force of 38.0N to keep it in uniform motion on a level highway find the
0 answers
438 views
assume that a business firm
produces two commod ities, X and Y, with two different inpu ts, Labour (L) and Capital (K). The total
0 answers
486 views
trying to help the kid with hw but not smart enough. please help.
Thank You! -(5/7) ^ -2/5 can be written as -(a)^b where "a" is
1 answer
483 views
one company makes 50 t-shirts for $295 and another offers 40 t-shirts for $250. which company is the better deal? answer please
3 answers
437 views
Spencer Morris works in the telemarketing division for a company that pays a salary of $735
per month plus a commission of 31 2%
1 answer
553 views
(cx)={X if 0 is less than or equal x less than or equal 10 and 0.9x if 10<x
1 answer
389 views
27=-2y+15
2 answers
269 views
Let X be a number. Translate the English phrase or sentence into a mathematical expression. Then evaluate the expression for X
4 answers
3,948 views
As part of a data base on new births at a hospital some variables recorded are the age of the mother, marital status of the
1 answer
870 views
Solve, using linear combination.
5x + y = 2 4x + y = 4 Write your answer as an ordered pair or write "no solution" or "infinitely
1 answer
504 views
1. A sudden escalation in medical costs for treatment of ischemic heart disease would immediately:
Answer Benefit providers. Be
1 answer
481 views
Chisel is a pivot point between the wire and a 2 cm distance between the pins and the hand is 10 cm F 50 Newton force
How much is
6 answers
496 views
a packing device is set to fill detergent powder packet with a mean weight of 5 kg . The standard deviation is known to be 0.01
0 answers
655 views
a boy has 380 prize tickets he wants to exchange for action figures at a prize booth,the prize both tickets 5 tickets can be
2 answers
1,533 views
what impulse is needed to slow a 45kg object from 15m/s to 12m/s?
0 answers
439 views
steven throws a 3.5kg ball at a speed of 25m/s. what is the momentum of the ball? Please show work
1 answer
425 views
how do you write the simplest polynomial function with the given zeros
1 answer
559 views
how do you write simples polynomial function with the given zero
1-i and 2
2 answers
430 views
how to you solve polynomial equation by factoring
x^3 + 3x^2 - 9x = 27
1 answer
1,341 views
solve polynomial equation by factoring
x^4 +100 = 29x^2
1 answer
501 views
solve polynomial equation by factoring
2x^3 - 12x^2 = 32x - 192
1 answer
777 views
how do you solve polynomial equation by factoring 3x^4 + 11x^3 = 4x^2
1 answer
513 views
how do you solve 3x^4 + 11x^3=4x^2
0 answers
321 views
need help please. the time required for one complete oscillation of a pendulum is called its period. if L is the length of the
1 answer
583 views
using long division
(x^6 - 4x^5 -7x^3) / (2x^3)
1 answer
411 views
a 2.0-kg ball has a momentum of 25 kg*m/s. what is the ball's speed?
2 answers
1,638 views
a net force of 200 newton's is applied to a wagon for 3 seconds. this causes the wagon to undergo a change in momentum of
1 answer
1,025 views
a net force of 100 newton's is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of
2 answers
1,811 views
Use Table 9.4 to calculate an approximate enthalpy or heat of reaction for the combustion of one mole of methane gas (CH4) to
1 answer
1,362 views
Using Table 9.4, calculate an approximate enthalpy (in kJ) for the reaction of 1.02 g gaseous methanol (CH3OH) in excess
1 answer
1,215 views
A student obtained an average PV value of 42,000 in column (f) of the data table. If the syringe had been able to be adjusted to
1 answer
2,123 views
Draw the dominant Lewis structure for NO2+. Note, that this ion is isoelectronic with CO2. How many double bonds does this
0 answers
1,186 views
Draw one of the Lewis structure of the N2O5. In each case one oxygen bridges the nitrogens (N-O-N single bond) and 2 other
1 answer
819 views
The average car today has a mass of 1100 kg, and when accelerating from rest, covers 0.25 miles in 15 seconds. Each rim and tire
1 answer
512 views
let f(x)=-5x+6 find and simplify f(x+2)
f(x+2)=___
1 answer
322 views
Under certain conditions, the reaction
3 A + 4 B → 5 C is observed to proceed at a rate of 0.0106 M · s−1. What is the
1 answer
747 views
Find the x- and y-coordinates of the center of gravity of a 4.00 ft by 8.00 ft uniform sheet of plywood with the upper right
0 answers
887 views
Two people (from the 1950s!) sit on opposite sides of a uniform board of length L. One person, of mass m1 = 50.0 kg, sits at a
2 answers
612 views
the lenght of a rectangle is twice its width.If the width is reduced by 1cm and the lenght is also reduced by 2cm,the area will
1 answer
731 views
Compare the literary and rhetorical devices in Elie Wiesel's Nobel Peace Prize Acceptance Speech and his novel Night. Explain
1 answer
1,131 views
How did Europe’s geography/advantages lead to its rise as a global power?
3 answers
547 views
how do i work this problem 8x25x23 using subtraction in mental math
2 answers
1,558 views
If there were no air resistance, with what
speed would drops hit the Earth if they fell from a cloud 1980 m above the Earth’s
1 answer
1,282 views
2/5(x+3)=6
2/5x+6/5=6 5/2(2/5x) +6/5 = 6(5/2) X+6/5=15 X-6/5=15-6/5 X=
1 answer
274 views
A 3.70 L sample of neon at 11.24 atm is added to a 10.0 L cylinder that contains argon. If the pressure in the cylinder is 5.24
0 answers
660 views
a fish tank that holds 80 gallons of water is 55 percent full how many gallons are in the tank now and how many more gallons are
4 answers
2,260 views
A farmer wants to make three identical rectangular enclosures along a straight river, as in the diagram shown below. If he has
1 answer
5,362 views
there are 32 boys and 24 girls. what re the various number of teams that can be made that would have the same number of boys and
1 answer
1,052 views
when the students place the unknown cart on the scale the scale reads the mass of 1.20 kg
a)calculate the percent difference b)
0 answers
478 views
Please check my answers I think they are right if not please tell me where I went wrong. Thanks
The annual net income of general
2 answers
592 views
if total ticket sales were $1625 adult tickets were $7.00 and student tickets were $3.00 and twice as many students bought
1 answer
655 views
A solution is prepared by placing 23.9 g of KCl in a 0.500 L volumetric flask and adding water to dissolve the solid, then
1 answer
1,111 views
jocelyn got 19 correct answers out of 25 questions on her last test. What percent of the questions did she answer correctly?
2 answers
708 views
I invest a sum of money at 10% annual simple rate and twice that amount at 12% annual simple interest.My total yearly in come
0 answers
570 views
a 25 inch piece of a steel rod is cut into 3 pieces so that the length of the second piece is twice the length of the first
2 answers
1,303 views
The ionic radii of Na+ (atomic weight 22.99) and Cl- (atomic weight 35.45) are 1.0 and 1.8 Angstrom, respectively. Treating the
1 answer
2,275 views
(1.b) Calculate your de Bröglie wavelength and momentum when you are driving a car at a speed of 104 km/hr (~65 mph), assuming
1 answer
601 views
An ant must walk from one vertex of a cube to the "opposite" vertex (that is, the vertex that is farthest from the starting
1 answer
914 views
Every marble in a jar has either a dot, a stripe or both. The ratio of striped marbles to non-striped marbles is 3:1, and the
1 answer
4,000 views
Assume a projectile is launched from ground height over a flat plane, at an angle of 50 degrees above the horizontal with an
1 answer
572 views
A spacecraft of mass 3.5 x 102kg was moving at 1.5 x 102ms-1 when its motor, operating at 8.4 x 102 kW fired for 5.0s Find the
1 answer
620 views
3. Now that we have discussed the concept of being customer oriented, let's discuss MARKETING ORIENTATION. Customer oriented
0 answers
772 views
Many companies claim that they are customer-oriented, but their customer service leaves a lot to be desired. Why do you think
1 answer
422 views
How does the marketing relate to your own experiences and beliefs? Which information do you find particularly interesting and/or
1 answer
393 views
Three point charges are fixed in place in a right triangle. What is the electric force on the q = -0.7 µC charge due to the
1 answer
1,467 views
a solution is prepared by mixing 1.0 grams of benzen(c6h6) in 100g of water to create a solution total volume of 100ml.calculate
1 answer
1,198 views
Calculate the mass of alanine and the volume of HCl required to prepare 1 litre of 0.1mol/litre buffer with pH of 2
1 answer
545 views
Oladudah equiano wrote
1 answer
383 views
Regardless of what Jim says, baseball is a more refined sport than ice hockey. This is so because more refined people watch
0 answers
585 views
The second proposition is this: an action done from duty has its moral worth, not in the purpose that is to be attained by it,
1 answer
869 views
The point (-3,4) is on a circle with its center at the origin. Which of the following points must also be on the circle?
2 answers
4,581 views
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