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Writing Equations With One Variable

Dontes’s age is 4 less than half of Dominic’s age. Dominic’s age is 6 more than three times Oscar’s age. The sum of their ages is 104. Find the age of each person. I need help with this i know... more

Trigonometry 2 section proof

Prove the identity in a 2 column format. sin2(2x) + 4cos4(x) = 4cos2(x)


What conclusion can be made by 8×6=48

What conclusion can be made from 8x6=48


A model rocket is shot out of a building and into the sky. The path of the rocket can be modelled by the equation ℎ = −2(𝑡 − 4)^2 + 50, where h is the height above ground in metres and t is the... more

How many grams of O2 are needed to completely react with 5.0 g of butane in a butane lighter?

I was given the balanced equation: 2 C4H10 + 13 O2 → 8 CO2 + 10 H2O. I have done the conversion to find that 5 g of butane is .09 moles of butane. I am unsure where to start when it comes to the... more

The emission spectrum from atoms and molecules

a. Occurs only in the visible region of the electromagnetic spectrumb. Is a discrete spectrum that is unique to each atom or moleculec. Is a continuous spectrumd. Is a descrete spectrum that is the... more

The value of ni if the observed wavelength is 657 nm is

The value of ni if the observed wavelength is 657 nm isa. 4b. 2c. 5d. 3 I think the answer is b. 2, since 657 nm is part of the Balmer Series (to n=2)

Verifying inverse functions

Are they inverse functions?f(x)=3-1/2xg(x)=-2x+6yes or no ?

Precalulus verifying inverse functions

Are these inverse functions? h(x)=10+6x/5f(x)=-2x+5yes or no ?

Find the probability

A bag contains 10 balls, of which 7 are green and 3 are white. A ball is picked atrandom from the bag and its color is noted. The ball is not replaced and a second ballis then picked out. Find the... more


A woman pushes an initially stationary 11.0 kg gift up a 19.1 degree ramp a distance of 8.09 m.

If she pushes with constant force of 89.7 N and the coefficient of friction is 0.399, what is the final velocity of the gift?


2M(s)+6HCl(aq)⟶2MCl3(aq)+3H2(g)Δ𝐻1=−947.0 kJ HCl(g)⟶HCl(aq) Δ𝐻2=−74.8 kJ H2(g)+Cl2(g)⟶2HCl(g) Δ𝐻3=−1845.0 kJ MCl3(s)⟶MCl3(aq) Δ𝐻4=−256.0 kJ 2M(s)+3Cl2(g)⟶2MCl3(s)

Consider these reactions, where M represents a generic metal. Use the given information to determine the enthalpy of the reaction

Please answer this question.

A biology test is worth 100 points and has 36 questions.a. Multiple-choice questions are worth 2 points each and essay questions are worth 6 points each. How many questions of each type are on the... more


How to graph y ≤ 4x


Derivatives of Natural Log

Use the Laws of logarithms to rewrite the expressionin a form with no logarithm of a product, quotient or power.After rewriting we havewith the constant  the constant  and the constant  


Derivatives of Log

In each part, find the value of  in simplest form.(a)  = (b)  = (c)  = 


Derivatives of Natural Log

 Differentiate . 

What is the meaning of a 1,4,5 chord progression

1) Students grow musically as they gain understanding of concepts such as chord progressions and how they are formatted .2) To see that chords usually follow an order and are not simply... more
2 4 5 6 7 9594

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