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Questions (1,507)
1. According to the excerpt, the ruling on Obergefell v. Hodges did what? Select all that apply. (2 points)
extended and
17 answers
7,902 views
9. According to this excerpt, President Obama would most likely support which of the following? (1 point)
laws that restrict
6 answers
2,226 views
Statement 1 – Illegal immigrants who have resided in the United States for years should qualify for alternative paths to
2 answers
2,998 views
5. Which of the following are examples of discriminatory laws passed by the U.S. government that impacted those depicted in the
3 answers
3,476 views
Sorry this is a really stupid question.
Ive been going back to basics and im a bit lost (probably tired so I cant see the
0 answers
701 views
The history of mankind is a history of repeated injuries and usurpations [seizures] on the part of man toward woman, having in
5 answers
3,953 views
The peripheral nervous system (select all that apply) . Is made up of the brain and spinal cord. . Links the body to the brain
1 answer
934 views
A possible set of quantum numbers for the last electron added to complete an atom of potassium in its ground state is
a) n=4,
2 answers
2,310 views
Give the formal change on the sulfur atom in a Lewis structure for the sulfate ion in which every atom satisfies the octet rule.
1 answer
624 views
Which one of the following compounds does not follow the octet rule?
a) NF3 b) CF4 c) SF4 d) PH3 e) HCl I know I can eliminate A
3 answers
6,787 views
From a pool of six juniors and eight seniors three co captains will be chosen for the football team. How many different
1 answer
800 views
Use the Fundamental Theorem of Calculus to find the derivative of
f(x)=∫[4,x^2]((1/4)t^2−1)^15 dt
2 answers
698 views
Mrs. Eryth is carrier of the sex-linked hemophilia allele, and Mr.
Eryth is normal (as far as blood chemistry goes). A. Draw a
1 answer
1,522 views
Choose the most polar bond from the options given below.
a) B-O b) B-S c) C-N d) C-O
2 answers
2,573 views
In a given experiment 36.44 mL of NaOH were required for neutralize a solution of HCl 0.35 M.
Calculate the moles of NaOH present
1 answer
775 views
The box-and-whisker plot below shows the numbers of text messages received in one day by students in the seventh and eighth
7 answers
4,479 views
Arrange the following ions in terms of increasing atomic radius (arrange the increasing from left [lowest] to right [largest]):
P
1 answer
966 views
Explain why only four ionization energies are listed for Beryllium in the table listing ionization energies of elements.
1 answer
1,452 views
which event would benefit to producers rather than toy consumers?
28 answers
16,859 views
Use proof by contraposition to prove that the following statement is true for all positive integers n:
If n2 is a multiple of 3,
1 answer
607 views
How many different f orbitals are there?
2 answers
659 views
A metal foil has a threshold frequency of 5.45 x 10^14 Hz. Which color of visible light will not eject electrons from this
3 answers
7,214 views
A 32 W (1 W = 1 J/s) lamp generates violet light at a wavelength of 420 nm. How many photons of this light will the lamp
3 answers
4,232 views
Prove that there exists no positive real number such that:
4x^2+1/4x <1 Can I simplify this inequality in the following way:
4 answers
643 views
Hello,
Struggling to get my head around this. So we have this statement. ----------------------------------- If it rains on
2 answers
612 views
doctors during the civil war did not have a lot to work with what would you have done to change battlefield hospitals to make
2 answers
409 views
Use proof by contradiction to show there is no real number x:
4x^2+1/4x <1
1 answer
427 views
let the matrix A =
(10 | 10 -4 | -3) Find the eigenvalues for A and for each find the corresponding eigenvector. Also express A
1 answer
508 views
Use mathematical induction to prove that the following is true.
8+11+14...+(3n+5)=1/2n(3n+13), for all n in the set of natural
1 answer
1,902 views
a box slides under gravity down a flat slope 3 m long. Coefficient of sliding friction is 0.2.
Show that the speed of the box at
0 answers
477 views
Hello,
Is there a way to find the angle of inclination if given the coefficien of sliding friction? I've got 0.2 for the
0 answers
530 views
Hello everyone,
Trying to get my head around deductions and the deductive step using my text book, could someone look over my
3 answers
431 views
You are approaching a stoplight. If the frequency of the light being emitted is approximately 520 THz, what was the wavelength
1 answer
1,343 views
What is the energy of a photon in J emitted by the transition from the ni = 4 to the nf = 2 of a hydrogen atom?
1 answer
795 views
A college football coach wants to know if there is a correlation between his players' leg strength and the speed at which they
1 answer
1,332 views
The following ions contain three oxygen atoms:
A) carbonate, sulfite, and nitrite B) sulfite, nitrate, and bromate C) sulfate,
3 answers
513 views
Calculate the standard enthalpy change for the reaction:
2C8H18(l) + 17O2(g) --> 16CO(g) + 18H2O(l) Given: 2C8H18(l) + 25O2(g)
1 answer
2,167 views
Calculate the amount of heat necessary to raise the temperature of 12.0 g of water from 15.4ºC to 93ºC. The specific heat of
1 answer
2,758 views
Potassium is a reactive element. Bromine is a reactive element. Write the complete balanced chemical equation using appropriate
1 answer
780 views
The enthalpy of combustion of benzoic acid (C6H5CO2H) is –3228 kJ/mol. The burning of 1.698 g of benzoic acid in a calorimeter
1 answer
1,019 views
Given H2(g) + (1/2)O2(g) --> H2O, ∆Hº = -286 kJ/mol, determine the standard enthalpy change for the reaction 2H2O(l) -->
1 answer
7,773 views
Given ∆Hºrxn = -1670 kJ/mol for 2Al(s) + (3/2)O2(g) --> Al2O3(s), determine ∆Hº for the reaction 2Al2O3(s) --> 4Al(s) +
1 answer
6,136 views
Which of the following processes is endothermic?
a) H2O (g) --> H2O (l) b) 3O2 (g) + 2CH3OH(g) --> 2CO2(g) + 2H2O(g) c) H2O (s)
3 answers
6,045 views
When .1625 g of Magnesium is burned in a bomb container that has a heat capacity of 3.03 kJ/ºC, the temperature increases by
2 answers
1,823 views
In which of the following reactions is work done by the system to the surroundings?
A) 2CH3OH(l) + 3O2(g) --> 4H2O(l) + 2CO2(g)
2 answers
6,299 views
Which of the following equivalences is true?
x^2 ≥ 0 ⇔ (x+1)^2 ≥ 1 x^2 ≥ 0 ⇔ x^2+1 ≥ 1 x > 0 ⇔ x^2 > 0 x^2 > 0 ⇔
2 answers
559 views
A particle moves such that its velocity at time t is given by
v =5t^5i + 4t^5j + t^3k. If its position x at time t = 0 is given
1 answer
407 views
A particle of mass 45 kg moves in a straight line such that the force (in Newtons) acting on it at time t (in seconds) is given
1 answer
774 views
What is the final temperature when 180.0 mL water at 101.3 C is added to 93.1 mL of water at 65.5 C?
1 answer
1,645 views
A gas expands its volume from 4.7 L to 8.9 L at constant temperature. Answer the following:
a) If the gas expands against vacuum
2 answers
2,144 views
Which statement is always true if ΔU sys is always negative?
a) q = w b) +q>–w c) -w> +q d) +w>-q
3 answers
5,450 views
Identify which of the following changes is exothermic.
a) liquid water boils to steam b) liquid water freezes to give ice c) ice
4 answers
2,807 views
what volume of oxygen is needed to react to complete reaction and to form 5cm of so3?
3 answers
518 views
When kevin commuted to work one morning, his average speed was 45 mph. He averaged only 30 mph for the return trip because of an
1 answer
1,774 views
the ratio of A to B is 3:8 and the ratio of B to C is 1:6 what is the ratio of A to C
3 answers
3,258 views
For the equation -4y =8x what is the constant variation?
-4 -2 1 2 Is it -2?
1 answer
386 views
Which type of rule allowed western governments to run colonies themselves?
A: Direct rule B: indirect rule C: Sphere of influence
8 answers
1,773 views
Does anyone have the answers for the Penn Foster Math for Business and Finance proctored exam? 060497
2 answers
1,523 views
Use the identities cos^2 x + sin^2 x =1
and cos2x=cos^2 x -sin^2 x to show that cos^4 x -sin^4 x = cos2x Im not sure how, I can
1 answer
583 views
Morning,
Bit confused: I have been given the following: g(x,y)=(4x,6y) h(x,y)=(x+2y,y) k(x,y)=(y,x) and ive got the following
2 answers
596 views
Find f''(2) of function f(x)=xsin(pi/x)
1 answer
459 views
So I have the following differential equation.
The general solution I have is: t=k(-1/r)+c I now need to find the particular
3 answers
729 views
1. The perimeter of a rectangle is 78 cm. The length is 3 greater than twice its width. Find the dimensions.
2 answers
1,547 views
Confused on how to find the reactants in these two compounds
Ba(OH)2 (aq) + I2Zn (aq) -> ?? Additionally, I am not really sure
1 answer
368 views
Hiya,
Dt/dr =k/r^2 Is this directly solvable or do I need to separate variables. I've got t=-k/r+c from the former and something
2 answers
434 views
What is the path that electrons take in C3 photosynthesis?
0 answers
338 views
A spherical balloon remains spherical as it is slowly inflated. The radius of the balloon r (in cm) at time t (in seconds)
1 answer
683 views
Cupid Co. has total assets of $600,000 and its liabilities are equal to two-thirds of its total assets. What is the amount of
2 answers
534 views
Let f(t)=sint where t is the measure of the angle in degrees. Thus f is the sin function on your calculator if you select degree
1 answer
449 views
How did the issue of states' rights influence South Carolina's decision to secede?
this is a short answer, so there are no
1 answer
627 views
How did the results of the presidential election in 1860 influence South Carolina's decision to secede?
there are no choices, it
1 answer
548 views
Which ordered pair would be plotted by starting from the origin and moving 0.25 units left and then 3 units up?
A) (3, -0.25) B)
29 answers
5,828 views
How do I shift
f(x)=x^2+sinx 3 to the right and 7 up?
1 answer
373 views
Name a pair of complementary angles
A- anglesign 1 and anglesign 4 B- anglesign 1 and anglesign 6 C- anglesign 3 and anglesign 4
1 answer
545 views
5 students are randomly seated along the side of a table. What is the probability that they are seated in order of age?
4 answers
474 views
You drop a rock into a deep well. You can't see the bottom of the well but you can hear the impact after T seconds. Suppose the
0 answers
516 views
You work for President Lula's government. You are most likely to support
A) tax cuts for corporations.**** B) privatization of
1 answer
776 views
Brazil's culture reflects what unique aspect of its colonial history?
A) its Roman Catholic missionary roots B) its ties to the
2 answers
781 views
Wealth disparity in Brazil results mostly from?
A)unequal land distribution.**** B)insufficient arable land. C)lack of oil and
3 answers
845 views
A very long uniform line of charge has charge per unit length 3.70 µC/m and lies along the x-axis. A second long uniform line
0 answers
1,238 views
The base of a right triangular prism is a right isosceles triangle whose equal sides measure 25 cm each. The volume of the prism
3 answers
1,508 views
Which equations represent exponential growth?
Which equations represent exponential decay? Drag the choices into the boxes to
5 answers
3,032 views
The price of products may increase due to inflation and decrease due to depreciation. Derek is studying the change in the price
3 answers
6,881 views
Belinda wants to invest $1000. The table below shows the value of her investment under two different options for three different
5 answers
6,665 views
A scientist is studying the growth of a particular species of plant. He writes the following equation to show the height of the
4 answers
9,978 views
Statistical questions will have.
A)Only one correct answer**** B)A variety of answers C)Fewer than three answers D)No answers
45 answers
8,515 views
For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.
8|13 16|26 24|39
6 answers
4,532 views
Find the lower, upper and interquartile range
20,22,25,28,29,30,32,33,34 Math is not my best subject.
15 answers
3,084 views
In some cultures, people choose not to eat any type of animal products. How might these people get the protein they need?
A)fruit
8 answers
2,305 views
The position function of a particle in rectilinear motion is given by s(t) = 2t^3 - 21t^2 + 60t + 3 for t ≥ 0. Find the
1 answer
1,026 views
During the 20th century, what has happened to make TX more like the rest of the nation? On the other side of that question, what
3 answers
434 views
How did Lyndon Johnson alter southern politics? What was it about his being a Texan that influenced him in these actions?
How
3 answers
578 views
Consider these three Supreme Court cases Smith v. Allwright (1944), Sweatt v. Painter (1950), Brown v. Board of Education
6 answers
670 views
1.) Which best describes a system of equations that has no solution?
•consistent, independent •inconsistent, dependent
3 answers
1,477 views
Find the area of the surface of revolution generated by revolving the curve y = 3 sqrt (x), 0 <= x <= 4, about the x-axis.
Okay,
1 answer
2,304 views
15x \equiv 20 (mod 88)
13=88-5*15 2=15-1*13 1=13-2*6 GCF is 1. Im trying to use backwards substitution and so far have
1 answer
495 views
Use the Divergence Theorem to calculate the surface integral
S F · dS; that is, calculate the flux of F across S. F(x, y, z) =
0 answers
937 views
So using the inverse of 17 modulo 26
I have -3(y-4)(mod 26) first am I correct? (I originally started with -3(y+22)(mod 26)) And
0 answers
575 views
Use the Divergence Theorem to calculate the surface integral
S F · dS; that is, calculate the flux of F across S. F(x, y, z) =
0 answers
651 views
Use the Divergence Theorem to calculate the surface integral
S F · dS; that is, calculate the flux of F across S. F(x, y, z) =
1 answer
857 views
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