01/24/20

Transformations. Need help immediately.
Which sequence of transformations will map figure Q onto figure Q′?Two congruent trapezoids figure Q and figure Q prime are drawn on a coordinate grid. Figure Q has vertices at (-9, 2), (-6, 4)... more
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01/23/20

The number of joules needed to raise the temperature of 100 g of water by 10°C is the same as the number of joules needed to raise the temperature of 1,000 g of water by what?
The partial answer is: X°C
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01/23/20

how much work is performed on an object to keep it moving on a frictionless surface
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01/23/20

write an equation of the line that is perpendicular to the given line and that passes through the given point
write an equation of the line that is perpendicular to the given line and that passes through the given point y+1=2(x-3); (5,0)
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01/23/20

thermochemistry
How much energy (in Joules) is required to convert 129 grams of ice at −23.0 °C to liquid water at 18.0 °C?(The specific heat of ice = 2.10 J/g°C; the specific heat of water = 4.184 J/g°C; the heat... more
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01/23/20

Limiting Reagent & Percent Yield

5. Determine the limiting reagent and calculate the percent yield of isopentyl acetate in the g reaction. The density of acetic acid is 1.049 gmL. You must show all work for credit. H2SO4 acetic... more
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01/23/20

I need help with this question for my University class
Solve this inequality for the y variable: -5x + 3y > 15
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01/23/20

if $2000 left in account for 4 years earned interest of $400, then how much interest would be earned in 5 years?
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01/23/20

Find the domain of the function using interval notation
G(x)=x+4/x3-4x
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01/22/20

Find the perimeter of the following problem (2x-1) length and (x+3) width
It is a rectangle we are trying to find the perimeter by simplifying algebraic expressions by distributive property and combining like terms
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01/22/20

If four times the reciprocal of a number is added to one-fifth of its reciprocal,the result equals 3. What is the number

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01/22/20

Calculation of the moles of the products.

the precipitation reaction of PB(NO3)ii and KI solution. The book asked us to calculate in moles of each reactant and product of when the PB(NO3)ii will be 0.0035moles (this solution is... more
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01/21/20

Math homework Algebra
Maria Aldo and Ryan have a total of $101 in their wallets. RYAN HAD 3 TIMES WHAT ALDO HAS. MARIA HAS $6 MORE THAN ALDO. HOW MUCH DOES EACH HAVE?
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01/21/20

Will povidone iodine dissolve a polar molecule?
Why or why not? Thank you. I just cannot seem to find answers on Google.
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01/20/20

Math answers to homework

Betsy a recent retiree, requires $6000 per year in extra income. She has $70000 to invest and can invest in b rated bonds paying 13% per year or in a certificate of deposit paying 5% per year. How... more
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01/20/20

Honors Chemistry Help
Phosphorous combines in several different forms. The density of a phosphorous vapor at 310 celsius and 101.3kPa is 2.64g/L. What is the molecular formula of phosphorous? A 2.650g sample of a gas... more
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01/20/20

Sapling question in chemistry
Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams, of 129 mL of ethanol?MASS: __________ g
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01/20/20

The sum of two numbers is 19. Their difference is 2. What are the numbers?
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01/19/20

Redox Reaction Titration Lab Question
How do I calculate the purity of a sample of impure oxalic acid if 0.4006 g of this material requires a titration with 28.62 mL of a potassium permanganate solution, 1.000 mL of which contains... more
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01/19/20

Math I need by tonight please

A cylinder and a cone have the same volume. The cylinder has a radius of 2 inches and a height of 3 inches. The cone has a radius of 3 inches. What is the height of the cone.
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01/19/20

law of sines trig

Find the missing side or angle. Round to the nearest tenth A=45° B=100° c=15° a= ?
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01/19/20

5 times the sum of x and twice y

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01/19/20

what does (n=5 to n=2) have to do with wavelength?
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01/19/20

What has a greater ionization energy, an element with a positive, negative, or neutral charge?
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01/19/20

Chemistry - solutions
The question is as follows, "You have 24 mol HCl, (assume it's in solid form even though it cannot be that in room temperature because it's gaseous), you'll blend HCl with a concentration of 2M.... more
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