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John
Questions (4,794)
How long will it take a shell fired from a cliff at an initial velocity of 800m/s at an angle 30 degrees below the horizontal to
4 answers
2,942 views
Q14. Describe the fighting during the American Revolution in Georgia with the correct terms:
The Battle of ______ ____________
3 answers
665 views
A lab manual states that to prepare a certain buffer requires mixing 25 ml of 0.200 M HClO (Ka=3.00 x 10^-8) with 50 ml of 0.2 M
0 answers
511 views
In a group of 40 students, 22 study Economics, 25 study Law, and 3 study neither of these subjects. Determine the probability
3 answers
2,917 views
In a group of 40 students, 22 study Economics, 25 study Law, and 3 study neither of these subjects. Determine the probability
1 answer
3,599 views
In a group of 40 students, 22 study Economics, 25 study Law, and 3 study neither of these subjects. Determine the probability
0 answers
1,024 views
Given P(A) = m is the probability of event A occurring in any given trial:
1. State the range of possible values of m 2. Suppose
1 answer
2,525 views
write a two column proof.
Given: RS=~ TS, V is the midpoint of RT Prove: /\RSV=~ /\TSV /\ is the triangle sign =~ is the
2 answers
4,637 views
Write the equation of the line that satisfies the given conditions. Express the final equation in standard form.
Contains the
1 answer
1,152 views
Find the critical points of the function. (Enter your answers as a comma-separated list.)
g(x) = square root(81 − x^2)
1 answer
2,742 views
Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter
2 answers
4,304 views
in a two by 3 grid, each lattice point is one unit from its nearest neighbours. a total of 14 isosceles triangles( but not right
1 answer
1,417 views
Three more than twice the smaller number is equal to the bigger number. If the sum of the numbers is 33, what is the smaller
1 answer
1,077 views
A football is kicked into the air. Its height in meters after t seconds is given by h=-5(t-2)^2+20
What was the height of the
1 answer
732 views
QP is (x y) = (3 -1) + r (14 10)
QR is (x y) = (3 -1) + s (17 -9) PR is (x y) = (0 18) + t (5 -7) where r, s, and t are scalars.
1 answer
636 views
QP is (x y) = (3 -1) + r (14 10)
QR is (x y) = (3 -1) + s (17 -9) PR is (x y) = (0 18) + t (5 -7) where r, s, and t are scalars.
0 answers
479 views
Can someone please help?
How much total energy is emitted from a collection of 2.50 moles of H atoms if each atom is emitting a
1 answer
443 views
Differentiate the function.((x^2)-((3x^2)(ln(4x))))/(x^6)
2 answers
477 views
Give all the products that you would expect by reaction of 2-bromo-3,4-dimethylbutane with methanol. Explain your answer.
Thank
0 answers
422 views
To travel 88 miles, it takes Sue, riding a moped, 4 hours less time than it takes Doreen to travel 72 miles riding a bicycle.
1 answer
680 views
Maria ate 1/3 of a pie. Her sister ate 1/5 of what was left. What fraction of the whole pie did her sister eat?
5 answers
3,846 views
Re: Qualitative analysis - group 1 cations lab
What single reagent could you add that would allow you to differentiate between
1 answer
1,049 views
The combined area of a square and a rectangle is 124 square centimeters. The width of the rectangle is 4 centimeters more than
1 answer
898 views
1. Start from rest with constant acceleration of 2.11 m/s2 for 20.0 s.
2. Maintain a constant velocity for the next 2.75 min. 3.
2 answers
495 views
9.3mL of ammonia base cleaner requires 12mL of 1M HCL to reach end point. A) what is molarity of ammonia and b) what is
1 answer
471 views
Suppose that you have a supply of a 30% solution of alcohol and a 70% solution of alcohol. How many quarts of each should be
1 answer
1,118 views
One-third of Connor's age is 11 years less than his age 13 years ago. How old is Connor?
1 answer
482 views
What is the goal of technology
A.to understand the natural world B.to improve how devices operate C.to improve how people live
28 answers
8,580 views
please help with this question .Name two planes that intersect in UV
in the figure to the right. I have a diagram to post as well
1 answer
676 views
Three friends have 1/2 a pizza left. If they divide it evenly, what fraction of a pizza will each friend get?and i already tried
11 answers
5,985 views
Generation and conduction of postsynaptic potentials
and Integration of postsynaptic potentials and generation of action
0 answers
508 views
A rectangular storage container with an open top is to have a volume of 10 . The length of its base is twice the width. Material
3 answers
1,174 views
Jennny decided to open up her new coffee shop. Jenny needs to know how much he will need to bring in with the coffee shop to
2 answers
676 views
An apartment building has 15 apartments in it. The tenant association is having a hard time collecting the fees from the tenants
2 answers
474 views
In a college, 30 students are taking a math class and 20 students are taking an English class. 5 students are taking both
1 answer
650 views
Use the empirical rule to solve the problem. The systolic blood pressure of 18 yr. old women is normally distributed with a mean
1 answer
1,198 views
Find the variance for the given data. Round your answer to two decimal places.
5.0, 8.0, 4.9, 6.8, and 2.8
1 answer
447 views
Identify the given random variable as being discrete or continuous.
The number of stories in a specific Manhattan office
1 answer
1,209 views
Determine which of the four levels of measurement is most appropriate.
Heights of survey respondents.
1 answer
905 views
A bag contains 5 purple marbles, 7 yellow marbles, and 3 orange marbles. If two marbles are selected from the bag:
What is the
1 answer
808 views
Consider the two inequalities 3x + 2y ≥ 4
9x + 8y ≤ 14 2y ≥ -3x + 4 2y/2 ≥ -3x/2 + 4/2 y ≥ -3x/2 + 4/2 y ≥ -3x/2 + 2
3 answers
425 views
If x + (1/x) = a
Find these in terms of a: x^2 + (1/x^2) and x^3 + (1/x^3) I got a^2 and a^3 as my answers, but the book says a^2
1 answer
354 views
Find a trigonometric equation in the form y = a sin (b (x-c)) which has a minimum of (3, -5) and a zero value of (6, -1).
There
4 answers
570 views
Solve 3^2x+1 = 5(3^x) + 2
I would know how to solve it if it was only 3^2x+1, but now it seems more complicated.
1 answer
389 views
b.Find the seventeenth term of an Arithmetic Progression, whose 9th and 15th term are 19 and 37 respectively.
1 answer
1,349 views
The green revolution depended on
A) new biodegradable pesticides. B) high-yielding grain varieties. C) clearing forest for crop
1 answer
511 views
How do global positioning systems use elevation points on Earths system to find latitude and longitude
A. By using signals from a
9 answers
3,749 views
Do global positioning systems use elevation on Earths system to find latitude and longitude
A. By using signals from a network of
8 answers
1,500 views
In which category should Atomic energy be placed, conventional source of energy or non conventional source of energy ?
Please
1 answer
379 views
I need help balancing this acidic equation out with reduc/oxidation.
Mn+2 (aq) + NaBiO3(s) -----> Bi+3(aq) + MnO4-1(aq)
1 answer
795 views
The graph of y =1/x
is vertically stretched by a factor of 3, reflected across the y-axis and shifted to the left by 2 units.
3 answers
3,051 views
In the twentieth century the United States entered the world arena as an international power.
What are some major points that led
1 answer
794 views
show that the circles x^2 + y^2 - 10x - 8y + 18 = 0 and x^2 + y^2 - 8x - 4y + 14x = 0 do not intersect.
1 answer
501 views
Which of the following statements regarding DNA and RNA is true?
DNA can melt while RNA cannot. DNA is resistant to alkaline
0 answers
1,705 views
Which of the following features of the structure of double-stranded DNA is most important in recognition of specific base
0 answers
638 views
Simone has been flipping a coin and has just flipped 5 heads in a row. she says that because she has just gotten so many heads,
1 answer
1,042 views
how many three letter security codes can be made from 4 letters A,B,C,D without using a letter twice? For example, BAC and A,D,B
0 answers
997 views
cara uses 2/3 of a cup of almonds to make 4 cups of trail mix. how many cups of almonds would she use to make 9 cups of trail
3 answers
1,917 views
In the predicted electron configuration of Molybdenum (Mo), how many electrons are in the 4d subshell?
2. How many electrons are
0 answers
672 views
The force of interaction between two charges q1=6uC and q2=2uC is 12N. If charge q=-2uC is added to each of the charges then the
2 answers
5,544 views
Cosmic ray bombardment of the atmosphere produces neutrons, which in turn react w/ nitrogen to produce radioactive carbon-14.
1 answer
829 views
gaseous butane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water. Suppose 38.9 g of butane is
3 answers
1,461 views
The square root of number that is two bigger than k is twice as big as the square root of the number one less than k. What is k?
2 answers
609 views
A vertical mast is on top of building and is positioned 6 ft from the front edge. The mast casts a shadow perpendicular to the
3 answers
1,580 views
A vertical mast is on top of building and is positioned 6' from edge of building. The mast casts a 90' shadow from front of
2 answers
1,229 views
particle P of mass m kg is attached to two fixed points A and B by two identical model springs, each of stiffness k and
natural
0 answers
605 views
Throughout the season, drew scored 18 touchdowns. He scored 10 in the first 6 games. How many did he score in the last 4 games?
W
1 answer
264 views
Based on the ratio of mean moles of O2/mol KClO3 what is the chemical equation for the reaction that occurred? Why? Is this
0 answers
838 views
Carol has 8 3/4 yards of material. She needs to use 1/3 of the material to make a dress. How many yards of material will she
4 answers
2,368 views
The diagram shows a tent which has a rectangular base with vertical sides of height 2m, width 6m and length 8m, surmounted by a
1 answer
717 views
Hello,
Can someone explain to me how does negative feedback loop work with a person whose condition is hyperthyroidism? How does
1 answer
521 views
When you apply a magnetic field to a material it is observed that the magnetic field inside decreases. What material property
1 answer
480 views
what did Microsoft do to prevent viruses like Melissa virus?
1 answer
464 views
Determine two positive integers such as 5 less than two times the first number is the second number.
The sum of the second number
2 answers
553 views
Consider free protons following a circular path in a uniform magnetic field with a radius of 1m. At t =0s, the magnitude of the
1 answer
566 views
Does Japan have a stronger civil society than South Korea?
1 answer
413 views
Melanie would like to have $25,706.30 in an ordinary annuity in 5 years. The annuity has a 10.8% annual interest rate, and she
1 answer
1,790 views
Consider classical electron orbit with radius
53pm (picometers) that has a magnetic moment equal to sqrt(2)*μB (the Bohr
0 answers
460 views
Am I correct? Please show me how if I am wrong
1.How many 6 digit numbers can be made using each of the digits {8,8,9,5,5,6}
3 answers
851 views
1.How many positive integers five-digit integers end with the digit 0? 9x10x10x10x? what number would represent zero
2.Using the
3 answers
953 views
Which Number Is A Perfect Square?
A. 32~~~~ B. 144 C. 1000 D. 36000
3 answers
1,460 views
IT division budget for the current year is $300,000. they already spent 10% of the budget on equipment, 66% on salaries, 8% on
1 answer
768 views
1.How many positive four-digit integers can be formed that are even?9x9x9x5=3645
2.Three differently colored six-sided dice are
2 answers
718 views
Which material is the densest air,water,plastic,or iron
1 answer
504 views
What Is the measure of an angle that is complementary to a 47 degrees angles?
A. 43 degrees B 53 degrees~~~ C. 153 Degrees D. 180
5 answers
4,137 views
Explain How To Construct A Perpendicular bisector
2 answers
1,106 views
I need help on these four questions. I was sick from class one day and now I am very confused about what is happening in Romeo
0 answers
529 views
1.How many positive three-digit integers can be made from the digits {3,4,5,6,7} if digits may be repeated? 5x4x3=60
2.In how
1 answer
993 views
I'm having a hard time understanding the fundamental counting principal and I don't even know where to start on some of the
1 answer
819 views
A boat is capable of 20 km/h in still water. You wish to cross the river downstream so that the angle the boat's push makes with
5 answers
684 views
a cyclist rides for 5 hours at a certain speed and then for 4 hours at a speed 6 km/h greater than her original speed. If he
2 answers
2,123 views
If 4 cards are drawn randomly from the standard deck of 52 cards, what is the probability that all 4 cards are red cards?
How
2 answers
737 views
Ann and Tom want to establish a fund for their grandson's college education. What lump sum must they deposit at a 9.39%
2 answers
2,097 views
Car A is 12 m ahead of car B on a straight stretch of road. Car A starts from rest and accelerates away from B at 4.0 m/s2. Two
3 answers
1,590 views
Prove that limit(z -> z_0) z^2 = z_0^2
I must show that for any positive number E that there exists a positive number delta so
0 answers
397 views
Consider a one step reaction. Which of the following does not describe the activation energy of the process?
The minimum amount
1 answer
525 views
A hollow sphere has a uniform volume charge density of 4.61 nC/m3. The inner radius is a = 14.6 cm and the outer radius is b =
2 answers
1,549 views
The doctor ordered an IV infusion of NaCl at 125 ml/hr for the next 48 hours. THe drop factor for the IV tubing is 10.
1)
1 answer
571 views
The intensity of light varies inversely as the square of the distance from its source. If two searchlights are 600 meters apart
1 answer
519 views
The intensity of light varies inversely as the square of the distance from its source. If two searchlights are 600 meters apart
1 answer
1,187 views
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