Questions and answers by

sean

Questions (169)

Find the LCD for the following rational expressions.-3 / x^2 - 2x + 1 2x / x^2 - 5x + 4 a)(x - 1) (x + 4) b)(x - 1)^2 (x - 4)
1. 0 answers
2. 486 views
Which expression represents the sum of the following?5 / 2t + 1 + -1 / 4t^2 + 4t + 1 a)10t + 4 / (2t + 1)^2 b) 4 / (2t + 1)^3
1. 1 answer
2. 1,189 views
find the difference. express your answer in simplest form.x^2 + 3 / x - 2x^2 + 5 / x a)-x^2 - 8 / 2x b)-x^2 - 2 / x c)3x^2 - 8 /
1. 1 answer
2. 542 views
The 10th grade raffle sold 127 tickets. If they award 1st and 2nd prize, how many different pairs of winners are possible?a)
1. 2 answers
2. 654 views
solve: 2 / x - 1 - 3/4 = 5 / x - 1a) -3 b) 3 c) 2 d) -2
1. 3 answers
2. 319 views
solve: 1 / x + 2 + 1 / x - 2= 1 / x^2 - 4a)-2 b) 2 c)-1/2 d) 1/2
1. 3 answers
2. 339 views
Solve: 2 / x - 1 - 3/4 = 5 / x - 1a) -2 b) 2 c) 3 d) -3
1. 1 answer
2. 342 views
In a permutationa) the selections are independent b) some items will never be used c) the order matters d) there must be at
1. 1 answer
2. 352 views
find the LCD for the following rational expressions. -3 / (x^2 - 2x) + 1 / 2x (x^2 - 5x + 4)a) ( x - 1) (x - 4) b) (x - 1)^3 (x
1. 1 answer
2. 873 views
which expression represents the sum of the following?7 / a - 1 + 3 / 2a - 2 a) 10 / 3a - 3 b) 17 / 2(a - 1) c) 17 / 2(a -1)^2 d)
1. 2 answers
2. 509 views
simplify: 10^C6a) 60 b) 210 c) 151,200 d) 1,000,000 c
1. 2 answers
2. 389 views
Dwanye has 18 shirts hanging in his closet. He is going to donate 4 of them to a clothing drive. How many combinations of shirts
1. 2 answers
2. 391 views
simplify the rational expression x^2 - 81 / x^2 + 18x + 81a) x - 9 / x + 9 b) x + 9 / x + 9 c) x + 9 / x - 9 d) x - 9 / x - 9 a
1. 2 answers
2. 776 views
Multiply: 12m^5 / -2m^2 * 6m^6 / 28m^3a) 9m^5 / 7 b) -9m^5 /7 c) 9m^6 / 7 d) -9m^6 / 7 d
1. 3 answers
2. 586 views
Multiply: 8r + 16 / 24r - 24 * 6r - 6 / 3r + 6a) 2/3r b) 2/3 c) 2 d) 2(r + 2) / 3r b
1. 2 answers
2. 347 views
Divide: p^2 + 4p - 5 / p^2 + 7p + 10 * p + 4 / p - 1a) p + 2 b) p + 2 / p + 4 c) p+4 / p+2 d)2 Just need to know if my answer is
1. 2 answers
2. 420 views
what are the non-permissible value for the rational expression (x^2 + x -6) / (x^2 + x -12)?a) x = 0 and x = -2 b) x = 0 and x =
1. 3 answers
2. 1,504 views
what is the non-permissible value for the rational expression y + 5 / x - 3?a) x = 0 b) x = 3 c) y = 3 d) y = 0 c
1. 1 answer
2. 396 views
Which of the following is equivalent to the rational number [3x / 4x]?a) 6x / 8x b) 12x / 24x c) 48x / 56x d) 3x / 5x a
1. 3 answers
2. 461 views
Which of the following represents the data in the table?x y 3 5 6 2 1/2 9 1 2/3 12 1 1/4 15 1 a) xy = 3 b)y = 15x c) y = 15 / x
1. 2 answers
2. 404 views
what is the non-permissible value for the rational expression y + 5 / x - 3?a) x = 0 b) x = 3 c) y = 3 d) y = 0 b
1. 2 answers
2. 428 views
what is the value of the expression 5x^2y / 5x - y when x = 4 and y = 2?a) 8 / 1 b) 60 / 3 c) 80 / 9 d) 16 / 5 c
1. 2 answers
2. 358 views
What is the value of the expression 2x^2 y /4xy when x = 2 and y = 1?a)1 b)2 c)3 d)4 Just need to know if my answer is right or
1. 2 answers
2. 570 views
what are the non-permissible value for the rational expression x^2 + x - 6 / x^2 + x -12?a) x = 3 and x = -4 b) x = 0 and x = -4
1. 1 answer
2. 457 views
What is the value of the expression 5x^2y / 5x - y when x = 4 and y = 2?a) 80 / 9 b)60 / 3 c) 16 / 5 d)8 / 1
1. 1 answer
2. 580 views
what is the non- permissiable value for the rational expression y + 5 / x - 3?a) y = 0 b) y = 3 c) x = 0 d+ x = 3
1. 2 answers
2. 344 views
What is the value of the expression 2x^2y / 4xy when x = 2 and y = 1?a) 1 b) 2 c) 4 d) 3 b
1. 3 answers
2. 526 views
simplify: sqrt (90)a) 30 b) 3 sqrt (10) c) 10 srt (3) d) 9 sqrt (3)
1. 2 answers
2. 591 views
simplify: sqrt (25) / (16)a) 5/4 b) sqrt (5)/(4) c) sqrt (5)/ sqrt (4) d) 16 sqrt (5) / 4
1. 2 answers
2. 614 views
simplify the following radical expression : 4 sqrt (81)/ (16)a) 2/3 b) 3/2 c) 2 d) 3
1. 3 answers
2. 410 views
simplify: sqrt 2/7a) sqrt (7) b) 2 c) sqrt (2) d) sqrt (14) / 7
1. 2 answers
2. 756 views
solve: sqrt (m) + 7 = 5a) (-2) b) none or 0 c) (2) d) (4)
1. 1 answer
2. 370 views
what causes some genetic disorders like sickle cell anemia
1. 1 answer
2. 498 views
a girl on stilts weighing 600N applying twice as much force as to boys weighing 600N each sitting down
1. 1 answer
2. 459 views
On june 1, coble company ltd borrows $40,000 from first bank on a 6-month, $40,000, 9% note. The note matures on December 1
1. 1 answer
2. 483 views
A high jumper of mass 80.0 kg consumes a meal of 4.00 103 kcal prior to a jump. If 3.3% of the energy from the food could be
1. 1 answer
2. 619 views
Find the voltage increase when 12 J of work is done to push a 0.0013 C charge into an electric field.
1. 0 answers
2. 510 views
A high jumper of mass 80.0 kg consumes a meal of 4.00 103 kcal prior to a jump. If 3.3% of the energy from the food could be
1. 0 answers
2. 665 views
What is the frequency of the microwaves in a microwave oven? The wavelength is 12 cm.I have to give the answer in GHz
1. 0 answers
2. 1,259 views
what would a clear definition of a presidential democratic governmental system?
1. 1 answer
2. 398 views
if 20g of magnesium react with excess hcl how many grams og mgcl2 will be produced
1. 1 answer
2. 652 views
if 60 grams of potassium chlorate is dissolved into 100cm3 of water at the temperature of 60 degrees celsius is the solution
1. 2 answers
2. 398 views
How can you demonstrate that finely ground fluids are not fluids.
1. 3 answers
2. 885 views
Compare and contrast liquids and gases.
1. 1 answer
2. 538 views
How do you distinguish between a fluid and a non- fluid.
1. 1 answer
2. 419 views
0.25 g of acid is titrated with .108 M NaOH. if it takes 27.22 mL of NaOH to reach the endpoint, what is the equivalent weight
1. 2 answers
2. 1,011 views
(3x^2y^4)(4xy^2)in simplist form please help
1. 1 answer
2. 521 views
sin theta/2cos theta/2=1/2 sine theta show the identiy and work
1. 0 answers
2. 496 views
S/A= 4.5, D/A=4.5,N/E=.80, A= D+E. SOLVE FOR N/S
1. 0 answers
2. 267 views
S/A= 4.5, D/A=4.5,N/E=.80, A= D+E. SOLVE FOR N/S
1. 0 answers
2. 266 views
S/A=4.5,D/A=4.5, N/E =.80& A = D + E solve for N/S
1. 3 answers
2. 311 views
lingustic of puerto rican americans
1. 2 answers
2. 406 views
Danielle was born with a birth defect which resulted in a lack of primary auditory cortex formation. Which of the following will
1. 1 answer
2. 955 views
Original quanity | new quantity . |price. |quanity supplieddemanded demanded 40 12$ 80 45 11$ 75 50 10$ 70 55 9$ 65 60 8$ 60 65
1. 1 answer
2. 596 views
my teacher gave us a question that says: compute the correlation coefficient (r) between pace of life and happiness.if peace of
1. 2 answers
2. 720 views
who ruled in europe before the french revolution?
1. 1 answer
2. 436 views
Which of the following statements best explains the results associated with condition 5? Room Conditions +Additional Heat
1. 1 answer
2. 482 views
The effects of training at a cellular, biomechanical and psychological level.
1. 1 answer
2. 380 views
differentiate y = tan^2(3x) + sec^2(3x)
1. 1 answer
2. 637 views
which best describes the relationship between the lines with equations 8x+y=6 and 16x+2y=0.... please help me...
1. 8 answers
2. 713 views
Could u help me with this question.The number, N, of people who have heard a rumor spread by mass media at time, t, in days is
1. 0 answers
2. 648 views
Please Could someone tell me what:1. A square number is 2. A cube number is 3. A triangle number is Thank you Square numbers are
1. 0 answers
2. 578 views
As a radio active material gets older, does it emit less, more or a constant level of radiation per second?There is less matter
1. 0 answers
2. 401 views
why is copper used for electrical wiring?The have writen 'Copper is a good conductor of electricity.' Is this correct? Yes,
1. 0 answers
2. 604 views
please could someone explain to me what the 4 factors of the marking mix are.I searched for marking mix and found nothing.
1. 0 answers
2. 565 views
the vertices of triangle abc are A(-2,3) B(10,3) and C(4,10. prove by coordinate geometry that the median to side AB is also the
1. 0 answers
2. 550 views
A ball of mass .44 kg and speed of 4.5 m/s collides head-on with a .22 kg ball at rest. Assuming perfect elasticity, what is the
1. 0 answers
2. 1,278 views
Hi!i need some help with this ASAP! a body is projected upwards from a point on level ground with a velocity of 45 m/s at an
1. 0 answers
2. 526 views
a ball is thrown at 15m/s at an angle of 30 degrees to the horizontal , how far does it travel horizontally before making
1. 1 answer
2. 1,519 views