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mike
Questions and answers by
mike
, page 4
Questions (1,026)
in one experient, a student placed 50.0ml of 1.00molar Hcl at 25.5celsius in a coffee-cup calorimeter. to this was added 50.0ml
2 answers
636 views
a reaction known to release 1.78 kilojoule of heat takes place in a calorimeter containing 0.100L of soln. the temperature rose
3 answers
499 views
You wish to prepare an aqueous solution of glycerol, C3H5(OH)3, in which the mole fraction of the solute is 0.093. How many
3 answers
1,159 views
how many gallons of water will a tank measuring 66 inches in diameter and 24 inches in height,hold?
2 answers
524 views
can u help me unscramble this word Dolurf
1 answer
445 views
A land developer wants to develop 20 acres of land. Each lot in the development is to be 5/4 of an acre. How many lots will the
5 answers
1,021 views
Stock in a company is selling for $113/4 per share. If someone purchases $893 worth of stock in this company, how many shares
1 answer
494 views
Erika spent5/6
hr. on her computer visiting the History Channel and the Discovery Channel websites. She spent 12 minutes at the
2 answers
571 views
A recipe for muffin mix calls for 8 cups of flour, 3 cups of oatmeal, and 4 tablespoons of baking powder along with other
2 answers
784 views
what is the stylistic device in "he sang a solitary song that whistled in the wind"
2 answers
579 views
Using the Gauss-Jordan method need to determine the coefficients a,b,c of the quadratic equation
x=ax squared +bx+c where y is
1 answer
369 views
Using the Gauss-Jordan method need to determine the coefficients a,b,c of the quadratic equation
x=ax squared +bx+c y=5.4 and x=8
6 answers
578 views
Company produces three models of speakers. models A,B,and C and can deliver them by truck, van and car. Truck holds 2 boxes of
4 answers
902 views
A long sleeve blouse requires 1.5 hrs of cutting and 1.2 hrs of sewing. A short sleeve blouse requires 1 hr of cutting and .9
3 answers
513 views
350 attend a play $3 for adults and $1 dollar for children Admission receipts are $750 how many adults and how many children
2 answers
639 views
when going more than 38 miles per hour the gas mileage of a certain car fits the model y=43.81 - 3.95x where x is the speed of
2 answers
751 views
find k so that the line through
(3,k) is parrallel to 5x - 3y = 2 then find k so that the line is perpendicular to 3x+2y=6
1 answer
462 views
find k so that the line through (3,k) and (1,-2) is parallel to 5x-3y=2. Find k so that the line is perpendicular to 3x+2y=6
3 answers
451 views
Consider the data points with the following coordinates.
x|33.8 37.2 14.1 46.3 29.5 ______________________________________ y| 2 7
5 answers
340 views
M[4,3_1,2]-M[1,1_1,0]+M[1,1_1,4]
perform the indicated operations where possible
3 answers
302 views
[4,3_1,2]-[1,1_1,0]+[1,1_1,4]
Re posting this one. this is a matrice and the question says perform the indicated operations where
1 answer
376 views
|a+2 3z+1 5m|+|3a 2z 5m|=|10 -14 80|
|4k 0 3 | |2k 5 6| |10 5 9 | This is a matrice and I am trying to find the values of the
1 answer
294 views
|a+2 3z+1 5m|+|3a 2z 5m|=|10 -14 80|
|4k 0 3 | |2k 5 6| |10 5 9| I needed to repost this. This is a matrice and I am trying to
1 answer
292 views
|a+2 3z+1 5m|
|4k 0 3| + |3a 2z 5m| |2k 5 6| = |10 -14 80| |10 5 9| I think I posted right this time I need the values of the
1 answer
282 views
|3a 2z 5m|
|2k 5 6| I am trying this one but am totally lost. You gave the answer to one earlier. If I am in need of the value of
1 answer
345 views
Need to find the sizes of the product AB and the product BA whenever these exist. We are given A and B
A is 4 x 3, B is 3 x 6
1 answer
412 views
Can you let me know if this is correct
|a+2 3z+1 5m| |4k 0 3| + |3a 2z 5m| |2k 5 6| = |10 -14 80| |10 5 9| can you let me know if
4 answers
322 views
Can you tell me if this is a correct answer. The question is find each matrix product.
|-9 2 1||2 | |3 0 0 ||-1| |4 | -16/6
1 answer
302 views
Show equation AX=B represents a linear system of two equations in two unknowns. Solve the system and sustitute into the matrix
1 answer
504 views
|2 0 4|
|3 1 5| |-1 1 -2| I needed the inverse of the matrix above and is the one below correct? If so how do I put the problem
1 answer
327 views
2x+4z=-8
3x+y+5z=2 -x+y-2z=4 I need to solve each system of equations by using the inverse of the coefficient matrix. Are these
2 answers
1,037 views
Show equation AX=B represents a linear system of two equations in two unknowns. Solve the system and substitute into the matrix
2 answers
1,117 views
What am I doing wrong I am using the Gauss Jordan method to calculate this answer and some other students are coming up with
6 answers
487 views
A manufacturer has decided to come out with a new and improved toilet. The fixed cost for the production of this new toilet line
3 answers
1,784 views
I did a problem and used the substitution method and it took me forever to solve by hand. Is there a shorter way to show how
2 answers
524 views
I need to solve the system of equations letting z be the parameter
7x+y+7z=-12 -3x+4y+6z=-1 This is suppose to be the right
3 answers
1,205 views
Barges from ports X and Y went to cities A and B. X sent 32 barges and Y sent 8. City A received 22 barges and B received 18
4 answers
2,899 views
| 2 3 5|
A=| 1 7 9| |-3 2 10| , |3| B=|4| |1| I need to solve this matrix equation AX = B FOR X BY FINDING A^-1, given A and B as
3 answers
373 views
How do I write A-1 The minus one is small and at the top but I am new at algebra and this is the first time I had to use this.
1 answer
294 views
una familia grande tiene muchas
1 answer
450 views
define the following new variables
X to A =W X to B =X Y to A =Y Y to B =Z w+x=32 y+z=8 w+y=22 x+z=18 You helped me solve for y
2 answers
489 views
w+x=32
y+z=8 w+y=22 x+z=18 220w+300(32-w)+400(22-w)+180(8-y)=9280 , w+y=22 I was able to solve for w and y but keep coming up
1 answer
288 views
I am trying to write the solutions that can be read from each simplex tableau.
X1 x2 x3 s1 s2 s3 x |0 2 0 5 2 2 0|15| |0 3 1 0 1
7 answers
1,428 views
3x[1]+x[2]<=12,x[1]+x[2]<=15,z=2x[1]+x[2]
I need the simplex for this problem. I have the right answer but keep coming up with a
3 answers
337 views
Is this a linear equation
-2x+2y=-8(y+5)
1 answer
343 views
46,207 x 125
1 answer
264 views
Doing a balance sheet. Trying to understand what Bal c/d, and Bal d/d means. It gives me the profit for the year then the payout
3 answers
514 views
Doing a balance sheet. Trying to understand what Bal c/d, and Bal d/d means. It gives me the profit for the year then the payout
2 answers
811 views
A computer can execute 36 instructions per microsecond.
How many instructions can it execute in 4 min?
2 answers
553 views
Indicate whether the deductive reasoning used is an example of affirming the hypothesis or denying the conclusion. 7)
If a number
2 answers
579 views
how do I find the width of a perimeter?
1 answer
326 views
what are 3 ways that language construct social reality.? i want an answer, not a website. if u don't know it, don't answer
3 answers
370 views
0.02 g of CaCO3 is dissolved in 1 L of water. Calculate the moles of calcium carbonate that have dissolved in the water, the
3 answers
581 views
0.02 g of CaCO3 is dissolved in 1 L of water. Calculate the moles of calcium carbonate that have dissolved in the water, the
2 answers
1,172 views
how do you start this problem
x/x+2=4/5,x=-2
1 answer
399 views
why formal communication differ from informal communication within a group? I don't want the difference, just state why they are
1 answer
425 views
a sample of seawater has a density of 1.02kg/L and has the following ion in parts per million by mass, 19,000 Cl-. how do you
3 answers
685 views
A firm has invested in corporate bonds it may engage in a financial futures contract in order to protect itself from what.
4 answers
1,351 views
Firms exposed to the risk of interest rate changes may reduce that risk by doing what
2 answers
486 views
Please show me how to solve this problem. A person wearing a shoulder harness can survive a car crash if the acceleration is
5 answers
1,219 views
A 2.5 kg block of ice at a temperature of 0.0 degrees Celcius and an initial speed of 5.7 m/s slides across a level floor. If
5 answers
3,597 views
Question: The amount of internal energy needed to raise the temperature of .25 kg of water by 0.2 degrees Celsius is 209.3 J.
14 answers
9,426 views
A pilot with a mass of 50 kg comes out of a vertical dive in a circular arc such that at the bottom of the arc her upward
3 answers
832 views
Small, slowly moving spherical particles experience a drag force given by Stokes’ law: where r is the radius of the particle,
2 answers
869 views
Can you tell me what this sign means
^
3 answers
364 views
can anyone tell me a tv show or movie that has misconceptions about listening?
1 answer
318 views
can the following formula to find the sum of the interior angles of a polygon be used on a concave polygon?
180(n-2) where n= the
14 answers
4,050 views
please help me with the question I posted at 4:56pm today
4 answers
339 views
In checking the angles of a section of a bridge support, an engineer finds the expression sin(2 cos-1 0.70). Write a paragraph
2 answers
523 views
Given that math SAT scores are normally distributed (follow the empirical rule)
m=500 Standard deviation=100 what is the math SAT
1 answer
681 views
Given that math SAT scores are normally distributed (follow the empirical rule)
m=500 Standard deviation=100 what is the math SAT
1 answer
659 views
If the perimeter of a square 220 centimeter what is the lenght of each side
3 answers
245 views
Use an associative property to write an equivalent expression.
2r + (19s + 22)
2 answers
1,099 views
how would you describe how you spied for the colonist in the american revolution
1 answer
293 views
. If you are performing a full backup each Friday to a single tape and a differential backup to a single tape on all other days
1 answer
401 views
A car is designed to get its energy from a rotating flywheel with a radius of 1.50 m and a mass of 600 kg. Before a trip, the
2 answers
769 views
what is data management technology
2 answers
869 views
particle 1 of mass m1 = 0.29 kg slides rightward along an x axis on a frictionless floor with a speed of 1.8 m/s. When it
3 answers
920 views
9x^2 + 16y^2 - 36x + 96y + 36 = 0 How do i find the major axis?
3 answers
1,399 views
a 3.5 kg dog stands on a 21 kg flatboat at distance D = 6.1 m from the shore. It walks 2.3 m along the boat toward shore and
4 answers
477 views
please can you examples on consonance,
allusion,alliteration and juxtaposition?
2 answers
490 views
particle 1 of mass m1 = 0.29 kg slides rightward along an x axis on a frictionless floor with a speed of 1.8 m/s. When it
1 answer
740 views
The air pressure variations in a sound wave cause the eardrum to vibrate. Find the maximum velocity and acceleration of the
3 answers
1,000 views
write a program that asks the user to enter today's sales rounded to the nearest $100 for each of three stores. the program
3 answers
738 views
write a program that produce a bar chart showing the population growth of Prairieville, a small town in the Midwest, at 20 year
2 answers
1,135 views
The need for an increase or decrease in short-term borrowing can be predicted by?
2 answers
719 views
dangerous and overcrowded prisons could make it difficult for Mexico to put more narcotics smugglers behind bars under a $1.4
1 answer
330 views
-0.5 Q^2+24Q-Q*Q^0.5-100=0
solve the eqution find value of Q
1 answer
342 views
A 2.40 kg object is hanging from the end of a vertical spring. The spring constant is 53.0 N/m. The object is pulled 0.200 m
4 answers
575 views
Use the Midpoint Rule to approximate the integral:
the upper number of the integral is 14 the lower number is 10 (4x+6x2)dx. with
1 answer
916 views
Evaluate the definite integral:
upper number of the integral is 6 lower number is 2(4x^2+5)/sqrt of x*dx
1 answer
396 views
upper number is 1 lower number of the integral is 0 u^3(u^-1/2+u^-1/5)du
1 answer
272 views
Evaluate the indefinite integral.
integral of 8 sin^4 x cos x dx
1 answer
409 views
Evaluate the integral
upper number is 8 lower number is 1 1/x^2 times sqrt of (1 + 1/x) dx
1 answer
402 views
i am greater than 30 and less than 40 the sum of my digits is less than 5
5 answers
298 views
Use logarithms to solve log 8 / log x < 1.
I understand that there are 2 cases: when x is negative or positive. I don't
2 answers
808 views
. How did U.S. manufacturers become vulnerable to offshore outsourcing
5 answers
387 views
How does:
(k(k-1))/2! * (1/k)^2 simplify into: (1- (1/k))/2! Could you show me step-by-step? thanks.
4 answers
828 views
1. What adaptive advantage did seeds provide
-------------------------------------- Notes: Embryo is protected in a seed. The
1 answer
468 views
what advantages does the structure of a flower give angiosperms over gymnosperms
1 answer
914 views
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