02/24/25

System of Equations|Please help!
3x + 4y = -232y - x = -19What is the solution (x, y) to the system of equations above?
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01/20/25

Chemistry 100 level
What is the oxidation number of S in NH4H2SO4?My professor says the right answer is +5, but Chat GPT says the right answer is +6, and she doesn't include +6 as one of the multiple choice options.... more
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01/20/25

College Chemistry 100 Level Questions
By convention, is Lattice Energy a positive or negative value? I wrote Negative on my test, but the professor says the answer is positive. Is she right?
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01/11/25

In a rare moment of carelessness, Ardy Brickfuss sprinkles 4.26 x 1022 molecules of sucrose (C12H22O11) on his breakfast cereal. Calculate the mass of sucrose involved in this blunder.
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01/07/25

What is the inverse equation for y= 1/2x-3

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12/16/24

Line k is defined as y = -5/7 + 6. Line j is perpendicular to line k. What is the slope of line j?
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12/11/24

Write an equation of the line that passes through $\left(1,5\right)$ and is perpendicular to the line shown. An equation of the perpendicular line is $y=$

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12/10/24

Phase Transition Chemistry - Determine Boiling Point
Determine the normal boiling point of a substance whose vapor pressure is55.1 mm Hg at 35°C and has a ΔHvap of 32.1 kJ/mol.
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12/05/24

a concrete block has a volume of 756 cubic meters and the dimensions are (3x-4),(2x-3) and x find the value of x
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12/02/24

Calculate the pH of this solution.

Calculate the pH of this solution. Round to the nearest hundredth.pOH = 3.45
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11/27/24

Determine Molar Solubilty
Given solubility product of PbBr2 is 4.45*10^-6, determine molar solubility in a 0.318 M Pb(NO3)2 solution.
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11/18/24

y=1/2x-4 in standard form
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11/18/24

transcribe and translate DNA to amino acids TAC-TGC-CGG-CCA-ACT
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11/16/24

From Delta math
Evelyn needs to order some new supplies for the restaurant where she works. The restaurant needs at least 769 glasses. There are currently 205 glasses. If each set on sale contains 12 glasses,... more
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11/15/24

What is the equation in slope intercept form of the line that passes through the point (6, 4) and is parallel to the line represented by y = 2.5x + 6?
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11/09/24

The function f is defined as follows. f(x) = x^2 +2 If the graph of f is translated vertically upward by 6 units, it becomes the graph of a function h. Find the expression for h(x) h(x) = ?
The function f is defined as follows.f(x) = x^2 +2If the graph of f is translated vertically upward by 6 units, it becomes the graph of a function h.Find the expression for h(x)h(x) = ?Please help... more
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11/08/24

Quadratic function help
Determine the quadratic function of the form f(x)=a(x−h)2+k with the points (2,8) and (0,-4)
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11/08/24

vertex form help
Write a quadratic function in the vertex form f(x)=a(x-h)2 +k such that the graph of the function opens down and has a vertex at (10,-2) and passes through point (9,-3)
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10/31/24

Reaction Stoichiometry

2Al + 3CuSO4 = Al2(SO4)3 + 3Cu Moles of copper produced based on 0.633 g Al used
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10/29/24

The points (9,1) and (8,6) fall on a particular line. What is its equation in point-slope form?
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10/29/24

Algebraic expressions

3 times the sum of 5 and x
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10/25/24

How do I make an equation for this?
Jackson is buying new shoes and a new hat. The shoes cost $40. He spends $59.40 for the shoes and hat after an additional 8% sales tax. How much did the hat cost before tax?
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10/24/24

J(x)=4/5x + 7 ; j(x) =-5
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10/23/24

Hardy-Weinberg Question-Please Help!

A population of rabbits may be brown (the dominant phenotype) or white (the recessive phenotype). Brown rabbits have the genotype BB or Bb. White rabbits have the genotype bb. The frequency of the... more
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10/21/24

Amount of Oxygen Used when cooking with CH4
how many moles of O2 are used if there are 6.00 moles of CO2 produced in the chemical equation CH4 + 2O2 gives CO2 + 2H2O
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