# College math questions and answers

Recent questions in Post Secondary

### Find the common difference d if the 7th term of a sequence is 33 and the 10th term is 21

quakbIi 2022-11-27

### In triangles UVW and XYZ, U and Z are right angles, $UV\cong \overline{YZ}$, and $\overline{VW}\cong \overline{XY}$. Which theorem proves these triangles are congruent? A. HA Congruence Theorem B. LA Congruence Theorem C. LL Congruence Theorem D. None of these

nonhumanWd3 2022-11-27

### the difference between these two logarithmI was just wondering what is the difference between $\frac{1}{\mathrm{ln}\left({n}^{2}\right)}$ and $\frac{1}{{\mathrm{ln}}^{2}\left(n\right)}$I know that $\frac{1}{\mathrm{ln}\left({n}^{2}\right)}$ is $\frac{1}{2\mathrm{ln}\left(n\right)}$ through the power rule, but I am not so sure about $\frac{1}{{\mathrm{ln}}^{2}\left(n\right)}$.

VarceprewN3M 2022-11-27

### Determine whether the sequence 36,27,18,9,... is geometric and if it is, what is the common ratio

cyflasaufMh 2022-11-27

### Convert $25$ degree Celsius into Fahrenheit.

Amina Wilkinson 2022-11-27

### Which of the following energy transformation takes place in a toaster? A.Solar energy → Electrical energyB.Electrical energy → Heat energyC.Electrical energy → Light energyD.Light energy → Heat energy

Arely Savage 2022-11-27

### Find the value of $\left(16{\right)}^{\frac{3}{4}}$

cyflasaufMh 2022-11-27

### Energy of an electron in the ground state of the hydrogen atom is $–2.18×{10}^{–18}J$. Calculate the ionization enthalpy of atomic hydrogen in terms of J $mo{l}^{–1}$.

LahdiliOsJ 2022-11-27

### The number of photons emitted by a 5mW laser source operating at 632.8 nm is ? $×{10}^{16}$

Naomi Rowland 2022-11-26

### A reaction has a standard free-energy change of . Calculate the equilibrium constant for the reaction at 25 degree Celsius

Garrett Mclaughlin 2022-11-26

### We can increase the strength of an electromagnet by increasing the number of turns of wire on the coil and but is there any other method with the help of which we can increase the strength of an electromagnet? By decreasing the flow of current By increasing the flow of current By increasing the thickness of wire By increasing the thickness of magnet

Emilia Carpenter 2022-11-26

### Which terminal of a battery is at a higher potential?

autreimL8 2022-11-26

### An electron is traveling at a speed of ${v}_{o}=2\ast {10}^{7}$ cm/s. The speed is increased such that the increase in energy is $\mathrm{△}E={10}^{-8}eV$. Determine the increase in electron speed.

Erick Wyatt 2022-11-26

### At what point does the curve have maximum curvature?$y=5\mathrm{ln}\left(x\right)$$\left(x,y\right)=\left(,\right)$κ(x) approaches ________ as $x\to \mathrm{\infty }$?

aamcastello1BN 2022-11-26

### Which of the following statements are true? Select all correct responses.The total momentum of any number of particles is equal to the vector sum of the momenta of the individual particles.The total momentum of any number of particles is equal to the algebraic sum of the momenta of the individual particles.The vector sum of forces acting on a particle equals the rate of change of momentum of the particle with respect to time.The total momentum of an isolated system is constant.The total momentum of any system is constant.The vector sum of forces acting on a particle equals the rate of change of velocity of the particle with respect to time.

experimediaisF 2022-11-26

### Find volume of concentrated nitric acid (15.8 M) is needed to prepare 4.0 L of a 2.0 M solution

aplaya4lyfeSS1 2022-11-26