Reno O. B.

12/13/21

The number of self-inflicted distractions 𝑧 that a worker encounters in a workday is inversely proportional to the number of hours of sleep 𝑡 that she receives.

The number of self-inflicted distractions 𝑧 that a worker encounters in a workday is inversely proportional to the number of hours of sleep 𝑡 that she receives. If she only had 4 distractions when... more

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Chemistry Chem

12/13/21

Chem help please confused

I have a mixture of three gases in a flask at 25 oC. The total pressure in the flask is 26.2 psi. If my gas mixture consists of 13.2 g of CHCl3, 25.8 g of HCl, and 3.2 g of H2, what is the pressure... more

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Math Calculus

12/13/21

Evaluate the integral using the given substitution

∫ 6(2X-1)-3 dx, u = 2x -1(2x-1)-2 + C-3/4(2x-1)-4 + C-3(2x-1)-2 +C-3/2(2x-1)-2 +C

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Sat Math

11/26/21

Answer the following:

Find a quadratic equation f(x)=ax2+bx+c that passes through the points (0.6), (3, -6) and (-1, 14)

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Trigonometry

11/26/21

Show that sin^4x-cos^4x/sin^2x -cos^2x =1

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Answers •2

Precalculus

11/23/21

Use the sun and difference formula cosine

you are given that cos(A)= 3/5 with A in quadrant 1, and sin (B)= -24/25, with B in Quadrant 3. Find cos(A-B)

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Answers •3

Linear Relations Coordinate Geometry

11/23/21

A line has gradient (or slope) 6 and passes through the points with coordinates (-1,6) and (7,a) find a

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Answers •1

Chemistry

11/17/21

What is the final state of the hydrogen atom?

A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.27nm. It then gives off a photon having a wavelength of 384.3nm What is the final state of the hydrogen atom? Where... more

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Math Algebra 2 Calculus

11/16/21

Hi, please help it's on arc length and sectors

If a sector has an area of 16pi/3in2 and a central angle of pi/6 radians, what is the radius of the circle? If a sector has an arc length of 10pi/3in and a radius of 10 inches, what is the central... more

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Chemistry

11/16/21

Does CNO- have isomers?

Does CNO- have isomers? If so, how do we draw them?

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Calculus

11/15/21

Suppose you have a triangle whose height is 10 times its width. The base of this triangle has a length of 8 units. Find b and the corresponding function.

This area corresponds to the value ofWhere b is ___ and the function is __.Originally thought b=8 but that is too easy.Thank you for the help in advance!

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Pre Calculus

11/15/21

Hi, I need help with this exercise

A function f is given, and the indicated transformations are applied to its graph (in the given order). Write the equation for the final transformed graph.f(x) = |x|; reflect in the x-axis, shift 3... more

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Answers •2

Calculus Limits Of A Function

11/14/21

Let 𝑓 be a function such that lim ℎ→0 𝑓(3+ℎ)−𝑓(3) / ℎ = 5. Which ones must be true?

(a)𝑓 is continuous at 𝑥 = 3(b) 𝑓 is differentiable at 𝑥 = 3 (c) The derivative of 𝑓 is continuous at 𝑥 = 3 (d) 𝑓 can be integrate at 𝑥 = 2 (e) The area under the curve 𝑓 around 𝑥 = 3 is 5

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Answers •1

Calculus

11/14/21

Let 𝑥(𝑡) = 𝑡^3 − 4𝑡 2 + 𝑡 and 𝑦(𝑡) = 𝑡^2 − 6𝑡 + 3. Find followings at 𝑡 = 1.

a. x(1)b. y(1)c. dx/dt |t=1d. dy/dt |t=1e. dy/dx|t=1My answers:a. 1b. -2c. 3t^2-8t+1d. 2t-6e. 3t^2-18t+23/2(t-3)^2 Not sure if I did any of them correctly, to be frank. I forgot to consider t=1 for... more

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Answers •3

Math Math Precalculus

11/13/21

Independent events, A and B where P(B) = 0.25 and P(A ∩ B) = 0.15. Find P(B' l A) and P(A' ∩ B')

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Answers •2

Chemistry

04/04/21

Finding the produced gas from baking soda and vinegar

I’m trying to understand how to calculate the gas produced (carbon dioxide) when mixing baking soda and vinegar. I have the balanced equation part, but unsure what to do next. I know it will... more

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Chemistry

03/20/21

What us the solubility in mol/L of manganese(II) sulfide (MnS) given that its Ksp value is 1.7 x10^-13?

i wanna check my answer

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Precalculus Trigonometric Equations

03/17/21

cosθ−2sinθcosθ=0

I have to solve the trigonometric equation but I'm kinda confused on how I should begin

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Answers •2

Chemistry

03/17/21

I need help writing a rate law

(H2O2) decomposes into water and oxygen gas in the presence of light. [H2O2] was monitored in the data shown in the graph. What is the rate law for the decomposition of hydrogen peroxide?

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Answers •2

Chemistry

01/25/21

Average Rate from Concentration-Time Data

For the gas phase decomposition of dinitrogen pentoxide at 335 K2 N2O54 NO2 + O2the following data have been obtained: [N2O5],... more

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Chemistry

12/27/20

Hess's Law problem. Please help

The reaction in hand warmers is 4Fe (s) + 3O2 (g) ===> 2Fe2O3 (s) ΔH= -1652 kJ. Calculate the amount on energy released by a hand warmer that contains 1.25 g of Fe (s).

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Chemistry

12/14/20

Which of these molecules are esters? Check all that apply.

Which of these molecules are esters? Check all that apply.ABCDEF

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Answers •1

Algebra 1 Algebra 2 Algebra

12/03/20

The current student population of Tucson is 1600. If the population increases at a rate of 18.3% each year. What will the student population be in 6 years?

The current student population of Tucson is 1600. If the population increases at a rate of 18.3% each year. What will the student population be in 6 years?Write an exponential growth model for the... more

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Algebra 1 Algebra 1 Algebra 2

12/03/20

A population numbers 14,000 organisms initially and grows by 12.7% each year.

A population numbers 14,000 organisms initially and grows by 12.7% each year.Suppose P represents population, and t the number of years of growth. An exponential model for the population can be... more

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Trigonometry

04/05/20

Solve triangle ABC. b=9, c=7, gamma = 48 degrees.

I am confused someone please help

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Answers •2

The number of self-inflicted distractions 𝑧 that a worker encounters in a workday is inversely proportional to the number of hours of sleep 𝑡 that she receives.

Chem help please confused

Evaluate the integral using the given substitution

Answer the following:

Show that sin^4x-cos^4x/sin^2x -cos^2x =1

Use the sun and difference formula cosine

A line has gradient (or slope) 6 and passes through the points with coordinates (-1,6) and (7,a) find a

What is the final state of the hydrogen atom?

Hi, please help it's on arc length and sectors

Does CNO- have isomers?

Suppose you have a triangle whose height is 10 times its width. The base of this triangle has a length of 8 units. Find b and the corresponding function.

Hi, I need help with this exercise

Let 𝑓 be a function such that lim ℎ→0 𝑓(3+ℎ)−𝑓(3) / ℎ = 5. Which ones must be true?

Let 𝑥(𝑡) = 𝑡^3 − 4𝑡 2 + 𝑡 and 𝑦(𝑡) = 𝑡^2 − 6𝑡 + 3. Find followings at 𝑡 = 1.

Independent events, A and B where P(B) = 0.25 and P(A ∩ B) = 0.15. Find P(B' l A) and P(A' ∩ B')

Finding the produced gas from baking soda and vinegar

What us the solubility in mol/L of manganese(II) sulfide (MnS) given that its Ksp value is 1.7 x10^-13?

cosθ−2sinθcosθ=0

I need help writing a rate law

Average Rate from Concentration-Time Data

Hess's Law problem. Please help

Which of these molecules are esters? Check all that apply.

The current student population of Tucson is 1600. If the population increases at a rate of 18.3% each year. What will the student population be in 6 years?

A population numbers 14,000 organisms initially and grows by 12.7% each year.

Solve triangle ABC. b=9, c=7, gamma = 48 degrees.

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