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Melissa

Questions (688)

Factor1. a^4-16 2. (m-n)^2-(2m+3n)^2 3.2x^4y^4-6x^5y^3+8x^3y 4.12m^2n^3+18m^3n^2
1. 1 answer
2. 343 views
simplify1. (2x^4-3x^2-6)+(6x^4-x^3+4x^2+5) 2. -7x(x^2+x-1)-3x(2x^2-5x+6) 3. -2x[ 5x-(2x-7)]+6x[3x-(1+2x)]
1. 1 answer
2. 304 views
expand and simplify1. -(y^2-4y+7)(3y^2-5y-3) 2.2(a+b^3
1. 1 answer
2. 868 views
expand and simplify1.(x^2-3x+4)(-x^2+3x-4) 2.3(2x-5)-9(4x-5)
1. 1 answer
2. 778 views
Factor1. 8a^2-2ab-21b^2 2. 6m^2-90m+324 3.5x(2-x)+4x(2x-5)-(3x-4) 4. 9(y-1)^2-25 5. 3x^2-27(2-x)^2
1. 1 answer
2. 953 views
Expand and simplify1.(9a-3)^2 2.(x^2+2x-1)^2 3. 2(3a+4)(a-6)-(3-a)^2+4(5-a)
1. 1 answer
2. 426 views
If f(x) = (x-4) (x+3) , determine the x-intercept of each functiona)y=f(x) b) y=-2f(x) c) y=(-(x+1)) thanks for the help !!!!!!
1. 0 answers
2. 297 views
a function f(x)has doamin {xeR/x>-4} and range {yeR/y<-1) . Determine the domain and range for each function.a) y=2f(x) b)
1. 0 answers
2. 582 views
a function f(x)has doamin {xeR/x>-4} and range {yeR/y<-1) . Determine the domain and range for each function.a) y=2f(x) b)
1. 4 answers
2. 3,553 views
If f(x) = (x-4) (x+3) , determine the x-intercept of each functiona)y=f(x) b) y=-2f(x) c) y=(-(x+1)) thanks for the help !!!!!!
1. 1 answer
2. 847 views
for h(x)=5-4x, determine the input for x when the output of h(x) is -11i have tried to answer this question so many times , but
1. 2 answers
2. 378 views
a teacher asked her students to think of a number, multiply by 5, and subtract the product from 20 , then she asked them to
1. 1 answer
2. 777 views
for h(x)=5-4x, determine the input for x when the output of h(x) is -11
1. 1 answer
2. 286 views
a teacher asked her students to think of a number, multiply by 5, and subtract the product from 20 , then she asked them to
1. 1 answer
2. 3,496 views
write each addition vertically.decide which new groups you will make.then,add to see if you were correct.256+1273___________ a
1. 4 answers
2. 1,130 views
You compress air saturated with water vapor at 24°C and atmospheric pressure (101.325 kPa) until the totalpressure is doubled
1. 0 answers
2. 599 views
The V.A-3 had an average speed of 96 km/h. Its momentum at this speed was 4.8 x 10(4)kg x m/s. What was the mass of the V.A-3?
1. 1 answer
2. 447 views
60 = (66+72+90+49+59+x)/6Solve for x.
1. 1 answer
2. 387 views
60 = (66+72+90+49+59+x)/6Solve for x.
1. 2 answers
2. 339 views
To pass a course you need an average score of 60 or more. If your scores are 66, 72, 90, 49, and 59, find the minimum score that
1. 2 answers
2. 502 views
A piece of wood is floating at the surface of some water as illustrated (the diagram is not to scale). The wood has a circular
1. 1 answer
2. 1,925 views
A 50cm long hollow glass cylinder is open at both ends and is suspended in air. A source o sound that produces a pure frequency
1. 1 answer
2. 624 views
A solid cylinder has an area of 10cm2 and a height of 1.0 m. The cylinder is composed of two different materials with mass
1. 1 answer
2. 568 views
I NEED HELP ON C THROUGH F. THANK YOUA spring id vertically, as shown below, and a 500g mass is hung from its lower end. The
1. 1 answer
2. 511 views
Two ingenious 120 student students decide to use an oscillating mass on a spring to check the shutter (exposure) time of their
1. 1 answer
2. 575 views
Two ingenious 120 student students decide to use an oscillating mass on a spring to check the shutter (exposure) time of their
1. 0 answers
2. 560 views
A spring id vertically, as shown below, and a 500g mass is hung from its lower end. The EQUILIBRIUM extension of the spring is
1. 0 answers
2. 524 views
A traverse periodic wave described by the expression y=5sin (pi x/3 - 30pi t) (where y and x are in meters and t is in seconds)
1. 0 answers
2. 1,111 views
Two ingenious 120 student students decide to use an oscillating mass on a spring to check the shutter (exposure) time of their
1. 0 answers
2. 650 views
A spring id vertically, as shown below, and a 500g mass is hung from its lower end. The EQUILIBRIUM extension of the spring is
1. 0 answers
2. 520 views
A spring id vertically, as shown below, and a 500g mass is hung from its lower end. The EQUILIBRIUM extension of the spring is
1. 1 answer
2. 828 views
In how many ways can 8 instructors be assigned to five sections of a course in mathematics?
1. 1 answer
2. 387 views
A card is selected from a deck of 52 playing cards. Find the probability of selecting· a prime number under 10 given the card
1. 1 answer
2. 635 views
how does social and cultural influences influence science education
1. 1 answer
2. 397 views
If the odds of winning a raffle are 12:258, what is the probability of winning?12/270 12/258 258/270 258/12
1. 1 answer
2. 427 views
Given p is true, q is false, and r is trus, find the truth value of the statement (~p^q)<->~r. Show step by step work.
1. 0 answers
2. 466 views
How do I construct a truth table for (p v q)->~p
1. 0 answers
2. 528 views
play interaction stratiges for Artist Apprentice,Peacemaker,Guardian of the gate,Parallel
1. 1 answer
2. 386 views
In one cycle a heat engine absorbs 450 J from a high-temperature reservoir and expels 290 J to a low-temperature reservoir. If
1. 1 answer
2. 943 views
rationalize the denominator 12 over 5 pie 90
1. 1 answer
2. 548 views
How do I graph .4x + y = 325,000
1. 1 answer
2. 383 views
Write the phonic concept which identifies the common sounds found in each group of words below. Do not identify each sound
1. 1 answer
2. 544 views
What the answer for this?3 more than the quotient of a number and 2
1. 0 answers
2. 802 views
What the answer for this?3 more than the quotient of a number and 2
1. 1 answer
2. 359 views
Given the following sets, select the statement below that is true A = {r,i,s,k,e,d}, B={r,i,s,e},C={s.i,
1. 0 answers
2. 422 views
In 1837, were the rebels justified in taking up arms against the official government?
1. 2 answers
2. 1,132 views
Please complete each equation1. 15k = (9 - _____)k 2. 3.6p - p = _____ - 0.4p 3. (8 + _____) * = 5m
1. 1 answer
2. 423 views
Find the average value of the squared distance between the origin and points in the solid paraboloid D={ (x,y,z): 0 ≤ z ≤ 4
1. 0 answers
2. 512 views
How many grams of copper are produced when excess aluminum reacts with 11.6g of copper oxide?
1. 1 answer
2. 437 views
Outliers are often easy to spot in histograms...my question is can a historgram have more than one outlier.
1. 2 answers
2. 417 views
How much surface area would 1 fluid oz. of gold cover?Thickness .0002 (two Tenths)
1. 1 answer
2. 680 views
Is this correct the way I answered this-I don't like onion cake so I'm telling them Sorry,but I don't like it.¿Quieres comer
1. 2 answers
2. 527 views
1.Which one is correct?Tocamos el piano. Jugamos el piano. Tocamos al piano. I think it is the Tocamos el piano because if it
1. 2 answers
2. 832 views
Which of the following is correct?Mis hermanos tocan a la guitarra. Mis hermanos tocan la guitarra. Mis hermanos juegan la
1. 1 answer
2. 651 views
I'm trying to find the gravitational force of an electron at earth's surface.I know I say Fg = mass electron * gravity Gravity
1. 2 answers
2. 860 views
What score in a distribution that has a mean of 500 and a standard deviation of 100, would identify the top 60% of scores?
1. 1 answer
2. 561 views
A square steel plate is 9.00 cm on a side and 0.600 cm thick. Assume that the plate is oriented with the square faces horizontal
1. 1 answer
2. 1,312 views
Homer won a prize in the lottery of $1000, payable $500 immediately and $500 plus 4% simple interest payable in 250 days.
1. 0 answers
2. 488 views
**Describe the outcome space**(a)If a Families that have three children each and select one such family at random. Describe the
1. 0 answers
2. 671 views
A 30 mL sample of 0.150 M KOH is titrated with 0.125 M HClO4 solution. Calculate the pH after the following volumes of acid have
1. 1 answer
2. 1,166 views
A 30 mL sample of 0.150 M KOH is titrated with 0.125 M HClO4 solution. Calculate the pH after the following volumes of acid have
1. 2 answers
2. 1,461 views
What is the shape of the schoolyard if four sides measure 40feet each and the fifth side measures 50 feet?
1. 1 answer
2. 403 views
A dog food is to be mixed from three kinds of ingredients: rolled oats, beef parts, and whey. The cost of each is 20 cents, 40
1. 0 answers
2. 577 views
Perform the indicated operation and, if possible simplify. 7/12+(-3/5)
1. 1 answer
2. 612 views
I am trying to analyze Wendi Kaufman's "Helen on Eighty-Sixth Street." I do not understand what Vita's mother means when she
1. 0 answers
2. 636 views
Consider a polygon ABCDE with coordinates A(0,4), B(3,0), C(7,2) , D(11,6) and E(8,15)Choose all possible pairs from below at
1. 2 answers
2. 502 views
A 214 kg boat is sinking in the ocean. The boat's weight is partially offset by the 790 N buoyant force of the water. What is
1. 1 answer
2. 1,352 views
Calculate the molar solubility of MgF2 in 0.08M MgCl2 at 25 degrees C.
1. 6 answers
2. 1,373 views
If a saturated solution prepared by dissolving solid BaSO4 in water has [Ba2+]= 1.04*10^5M, what is the value of Ksp for BaSO4?
1. 2 answers
2. 1,600 views
Complete hydrolysis of 25 mM ethyl acetate in an enzyme esterase catalyzed reaction is carried out in a 40 mM NaCl solution
1. 0 answers
2. 727 views
Angle U and Angle V are complementary angles. If Angle U is three less than twice Angle V, what are the measures of the angles?
1. 2 answers
2. 523 views
A building contractor is planning to build an apartment complex with one, two or three bedroom apartments. Let x,y,z
1. 4 answers
2. 753 views
A 119.2mL sample of 0.105M methylamine (CH3NH2, Kb=3.7*10^-4) is titrated with 0.255M HNO3. Calculate the after the addition of
1. 1 answer
2. 3,089 views
A 23.0mL sample of a diprotic acid is titrated with 0.260M KOH. If 55.5mL of base is required to reach the second equivalence
1. 2 answers
2. 726 views
The area of the top of a triangular corner desk must be at least 7 sq. ft. If the base of the triangular desk top needs to be
1. 3 answers
2. 463 views
A value of the number k for which there is either no solution or an infinite number of solutions for (y,v) to the system of
1. 1 answer
2. 421 views
The formula for epson salts is MgSO4*7H2O. If 1.250 g of the compound is dissolved in water, calculate the number of milliliters
1. 1 answer
2. 926 views
How can I rewrite this sentence: A boy and his bog sat by a house?
1. 3 answers
2. 603 views
The suppliers will supply 3,300 units if the price is $350.00 and 3,800 units if the price becomes $410.00. Then the linear
1. 0 answers
2. 345 views
The question says ..match the equivalent addition and subtraction expressions a) -6 -9 b)-10 - (-12) c)6-9 d)10-12 e)-12-10
1. 1 answer
2. 444 views
The question says ..match the equivalent addition and subtraction expressions a) -6 -9 b)-10 - (-12) c)6-9 d)10-12 e)-12-10
1. 1 answer
2. 538 views
Choose between the numbers 0, 2, 3, 4, 5, and 6 to make the largest four digit natural number in terms of value that you can.
1. 1 answer
2. 599 views
Using the following six digits, 1, 2, 4, 6, 8, and 9, fill in the blanks below to make the maximum product that you can. Use
1. 1 answer
2. 535 views
what are the non-monetary benefits of growing tobacco, of working as a plumber's assistant, and of working as a carpenter during
1. 0 answers
2. 454 views
What are the non-monetary benefits of growing tobacco, of working as a plumbers assistant, and of working as a carpenter during
1. 0 answers
2. 472 views
explain why the cost tructure associated with many kinds of information goods and services might imply a market supplied by a
1. 0 answers
2. 529 views
Mark each of the following True or False.___ a. All vectors in an orthogonal basis have length 1. ___ b. A square matrix is
1. 0 answers
2. 1,197 views
How do I say I'm wearing black pants?"Llevo pantalones negro." or do I have to add an "s" to negro? Thank you
1. 2 answers
2. 593 views
Could someone help me please?Which of the following says "some strong men" in Spanish los hombres fuertes unos hombres fuertes I
1. 2 answers
2. 564 views
A 3.90×10^2kg cube of ice at an initial temperature of -18.0degreesC is placed in 0.480kg of water at 41.0degreesC in an
1. 1 answer
2. 632 views
A group of doctors is trying to see if a vaccine causes a certain type of disease. They take individuals with the certain
1. 1 answer
2. 786 views
what mass of calcium oxalate can be dissolved in 180 ml of distilled water before a precipitate forms?
1. 3 answers
2. 489 views
What are the hard and fast rules of Science, if any?
1. 0 answers
2. 334 views
nick has 1 3/4 gallon of milk how many pints does nick have. I think it is 14.
1. 4 answers
2. 826 views
3x-9y=632x-6y=-18 Solve system of equations by graphing then classify as Independent on dependent and consistent or
1. 3 answers
2. 963 views
One canned juice is 20% orange juice: another is 10% orange juice. How many liters of each should be mixed together in order to
1. 2 answers
2. 879 views
Ethanol burns to produce 1300.0 kJ/mol and has a heat capacity of 65.6 J/mol·K. If Dr. Porter has 1.00 L of liquid ethanol
1. 2 answers
2. 802 views
Hydrofluoric acid etches glass by reacting with the silica in it according to the following equation.H° = 54.5 kJ and S° =
1. 2 answers
2. 425 views
A typical model rocket engine exerts an average force of 5 N on its exhaust gas. How much average thrust force does the gas
1. 2 answers
2. 532 views
2 H2O (l) → 2 H2 (g) + O2 (g)Using the thermodynamic values to calculate accurate values of ΔHr and ΔSr, will the reaction
1. 0 answers
2. 582 views

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