# jose

Popular questions and responses by jose-
## Statistics

Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.62 and a standard deviation of 0.43. Using the empirical rule, what percentage of the students have grade point averages that are

*asked on September 18, 2017* -
## physics

A 5.75 µC and a -2.61 µC charge are placed 19.8 cm apart. Where can a third charge be placed so that it experiences no net force?

*asked on January 25, 2011* -
## math

What is the unit rate? 1500 meters in 6 seconds?

*asked on July 10, 2013* -
## math

Determine if the Mean Value Theorem for Integrals applies to the function f of x equals the square root of x on the interval [0, 4]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem.

*asked on November 16, 2018* -
## math

Renee is a sales associate at a store. She earns $80 a week plus a 15% commission on her sales. Last week, she sold $200 worth of items. What is the total amount Renee earned for the week? How much did she earn from commission?

*asked on April 15, 2015* -
## physics

As shown in the diagram, a bullet of mass 7.0 g strikes a block of wood of mass 2.1 kg. The block of wood is suspended by a string of length 2.0 m, forming a pendulum. The bullet lodges in the wood, and together they swing upward a distance of 0.40 m from

*asked on January 4, 2016* -
## Pre-Calculus

Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x),and express the quotient P(x)/D(x) in the form P(x)D(x) = Q(x)+ R(x)D(x) . P(x) = 6x4 − 3x3 + 29x2, D(x) = 3x2 + 13

*asked on September 14, 2014* -
## College Chemistry

For each trial, enter the amount of heat lost by the calorimeter, qcalorimeter. Be careful of the algebraic sign here and remember that the change in temperature is equal to the final temperature minus the initial temperature. Report your answer using 4

*asked on April 12, 2013* -
## math

Irrational Perimeter and a Rational Area of a rectangle. a can = b can = Or, if it's impossible, explain how. Help me I'm confused.

*asked on August 12, 2016* -
## math

Suppose a 25-foot ladder is leaning against a wall making a 63 degree angle with the wall. How high up th wall is the end of the ladder?

*asked on March 19, 2015* -
## Chemistry

1. Which metal is the most easily oxidized? A.) highly active metal *B.) moderately active metal C.) slightly active metal D.) an inactive metal 2. What happens in a voltaic cell? *A.) Chemical energy is changed to a electrical energy. B.) Electrical

*asked on March 27, 2013* -
## chemistry

Calculate the temperature change in the water upon complete melting of the ice. Hint: Determine how much heat is absorbed by the melting ice and then use q =mC*Delta T to calculate the temperature change of the 314 g of water. under the following

*asked on November 17, 2010* -
## PHYSICS

If the current in a 100 mH coil changes steadily from 25.0 A to 10.0 A in 375 ms, what is the magnitude of the induced emf?

*asked on April 11, 2010* -
## science

What kind of terrain and landforms would indicate the prior existence of a valley glacier.

*asked on June 28, 2019* -
## Chemistry

If 100g of Methane are burned in this reaction to cook my dinner, How many moles of Carbon dioxide are produced?

*asked on March 21, 2019* -
## Physics

Suppose a gust of wind has carried a 52-μm-diameter dust particle to a height of 340 m. If the wind suddenly stops, how long will it take the dust particle to settle back to the ground? Dust has a density of 2700 kg/m^3, the viscosity of 25∘C air is

*asked on March 5, 2019* -
## Stoichiometry

C3H5+5O2-3CO2+4H2O

*asked on February 17, 2017* -
## statistics

If boys and girls are equally likely to be born, what is the probability that in a randomly selected family of 6 children, there will be at least one boy? (Find the answer using a formula. Round your answer to three decimal places.)

*asked on March 30, 2014* -
## Math

Write a measurement division story problem for 5/12 divided by 1/6

*asked on October 16, 2019* -
## math seriously help me

Sally graphs the geometric sequence an = 2(3)n - 1 on a coordinate plane where she plots an on the y-axis and n on the x-axis. This graph is the same as the graph of which type of function? A) cubic B) linear

*asked on May 5, 2017* -
## physics

A ball is projected upward at time t = 0 s, from a point on a flat roof 10 m above the ground. The ball rises and then falls with insignificant air resistance, missing the roof, and strikes the ground. The initial velocity of the ball is Consider all

*asked on October 11, 2015* -
## science

which of the following is the best course of action when it comes to using natural resources

*asked on November 7, 2013* -
## statistics

A company is considering installing new machines to assemble its products. The company is considering two types of machines, but it will buy only one type. The company selected eight assembly workers and asked them to use these two types of machines to

*asked on January 23, 2011* -
## physics

A thin 12 cm long solenoid has a total of 460 turns of wire and carries a current of 2.1 A. Calculate the magnitude of the field inside near the center.

*asked on April 3, 2010* -
## BUSINESS

Question What are the differences between an internal proposal and an external proposal? Also I need to summarize why the two proposal types are different in terms of the following elements: Consider the following scenario: Management at your project

*asked on May 25, 2009* -
## english

In the United States, cell phones are a very popular item. What are all VERBS both "Action" and "Be."

*asked on May 16, 2016* -
## trig

Find the component form of v and sketch the specified vector operations geometrically, where u = 4i − j, and w = i + 5j. v = −u + w v = ( , )

*asked on November 2, 2015* -
## Ela

Write each phrase below to make it a plural or singular possessive or plural possessive.the backpacks belonging to the girls,the covers of the bookd

*asked on October 26, 2015* -
## pcc

A volume of 40.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 21.7mL of 1.50 M H2SO4 was needed? The equation is

*asked on July 15, 2013* -
## Physics please help!!

A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 2.23 hours. What is density of the planet? Assume that the planet has a uniform density.

*asked on March 4, 2013* -
## SCI/275

Compare and contrast the western world view with the deep ecology world view. Challenge one of the world views presented in Visualizing Environmental Science. Which world view is closest to your own? Why?

*asked on December 6, 2012* -
## applied chemistry

A 50.0mL volume of AgNO3, solution contains 0.0285 mol AgNO3 (SILVER NITRATE). What is the molarity of the solution?

*asked on March 7, 2012* -
## Language arts and writing

The first compact microwave ovens were sold in 1960. Everybody didn't use them until the 1980's.

*asked on February 6, 2012* -
## verbs

kris enjoys action movies at the theatre

*asked on August 2, 2011* -
## chem

How many liters of 12.3 molar NaOH stock solution will be needed to make 12.4 liters of a 1.2 molar NaOH solution? Show the work used to solve this problem.

*asked on April 6, 2011* -
## physics

In the figure , the total resistance is 10.0 kOmega, and the battery's emf is 28.0 V. If the time constant is measured to be 40.0 mu s. Calculate the total capacitance of the circuit.Calculate the time it takes for the voltage across the resistor to reach

*asked on March 2, 2011* -
## Chemistry

How much water can be produced from the complete reaction of 2.56 L of oxygen gas, at STP, with hydrogen gas answer in units of g.

*asked on March 29, 2011* -
## Chemistry

How much water can be produced from the complete reaction of 2.56 L of oxygen gas, at STP, with hydrogen gas answer in units of g.

*asked on March 29, 2011* -
## math

Write three number that are greater than 1,543,000 but less than 1,544,000

*asked on October 18, 2010* -
## dictionary

What does the italicized n stand for in a dictionary entry

*asked on September 24, 2008* -
## chemistry

Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. Water has the highest boiling point. B. Two lone pairs of electrons are assigned to the oxygen in each Lewis structure of all three molecules. C. Dispersion

*asked on February 4, 2008* -
## math

wat is1/2 plus 1/3

*asked on December 17, 2007* -
## Physics

A airplane has a speed of 290 km/h and is driving at an angle of 30 degrees below the horizontal when the pilot releasese a radar decoy. The horizontal distance between the release point and where the decoy hits the ground is 700m. a) How long is the decoy

*asked on October 24, 2006* -
## math

Find the equation of the line of best fit for the points (-4,10) (-1,5)(2,-1)(3,-6)(5,-7)

*asked on June 25, 2018* -
## Math

What is the work for the problem 61,125 divided by125

*asked on September 5, 2017* -
## math

two concentric circle with the ratio of radii as 2:3, what is the ratio of the area? thanks

*asked on December 10, 2016* -
## Math

A marine surveyor uses a rangefinder and a compass to locate a ship and an island in the vicinity of the coast on which she stands. The rangefinder indicates that the island is 379 ft from her position and the ship is 600 ft from her position. Using the

*asked on October 29, 2016* -
## financial math

Rate: 7% Payments: 360 @ $665.31 Total Interest: $139,511.60 How much will be repaid for this loan? $ 239,511.60239,502.40100,000.00 What percentage of this total is total interest? 60.256.258.2 What will be the average amount per payment for interest? $

*asked on October 18, 2016* -
## physics

A mass m = 0.068 kg of benzene vapor (Lv = 3.94x105 J/kg) at its boiling point of 80.1°C is to be condensed by mixing with water at 45.0°C. What is the minimum mass of water required to condense all of the benzene vapor? Assume the mixing and

*asked on April 10, 2016* -
## Math

Marisa says that reflecting a point across the x axis and then reflecting its image across the y-axis will produce the same final image as just reflecting the original point across the line y equals x is this true?

*asked on February 23, 2016* -
## math

To date, Jay Ward has xumulative earnings of $ 107,600. This week he is paid $3,000. What is the total amount of Social Security tax for this week? Assume a rate of 6.2% on $110,100 for Social Security and 1.45% for Medicare.

*asked on November 28, 2015* -
## Math

x/(x+1) - 2/(x-1)= 1 I have been trying to solve it but I do not know the steps to solve it.

*asked on September 27, 2015* -
## algebra

whats the difference between a 16 ounce brick and a carpenter?

*asked on August 18, 2015* -
## Physics

An airplane flies 220 km due east, makes a right-angle, and then flies 400 km due north. Find the magnitude of the plane's displacement from it's starting point. Neglect the culrvature of the earth

*asked on September 14, 2014* -
## math

There are 2 leaves along 3 in.of an ivy vine. There are 14 leaves along 15 in. of the same vine. How many leaves are there along 6 in. of the vine?

*asked on March 27, 2014* -
## Math

Becca wants to make a giant cherry pie to try to break the world record. If she succeeds in making a pie with a 20 foot diameter, what will be the total distance around the pie?

*asked on March 16, 2014* -
## Math

Pam served her apple pie on a 13 inch diameter dish. She wanted to tie a ribbon around the dish to make it a little more festive. How long does the ribbon need to be in order to fit around the dish?

*asked on March 16, 2014* -
## geometry

Given the equation of the circle (x – 9)2 + y2 = 484 , where is the center of the circle located at?

*asked on November 12, 2013* -
## tax

Business Investigation Expenditures. During January and February of the current year, Big Bang LLC incurs $3,000 in travel, feasibility studies, and legal expenses to investigate the feasibility of opening a new entertainment gallery in one of the new

*asked on July 31, 2013* -
## Humanities

What are peer reviewed articles/journals?

*asked on February 12, 2013* -
## math

if a house square feet is 3,546 sq what is the perimeter of the house

*asked on December 19, 2012* -
## chem

why is hydrogen gas placed in the 1A column of the periodic table?

*asked on November 8, 2012* -
## Physics

A car starts from rest and accelerates uniformly to a speed of 50km/h in 18s. If the wheels of the car are 70cm in diameter. Calculate; a.The final angular velocity of the wheels b.angular acceleration

*asked on March 22, 2012* -
## chemistry

Calculate the relative molecular mass of a gas if a 500cm3 sample at 20¢ªC and 1 atomic mass of 0.66g

*asked on June 21, 2011* -
## calculus

A cylindrical metal can with an open top is to be constructed. the can must have a capacity of 24pie cubic inches. the metal used to contruct the bottom of the can costs 3 times as much as the metal in the rest of the can. Find the dimensions(radius and

*asked on January 17, 2011* -
## algebra

one plane left an airport at 11:30 am. A second plane, traveling at 320 mph left the same airport at 1:00 pm and overtook the first plane at 4:30 pm. At what speed was the first plane traveling?

*asked on October 17, 2010* -
## math

A video game store charges a monthly membership fee of $7.50 but the charge to rent each movie is only $1.00 per movie. Another store has no membership fee but it costs $2.50 to rent each movie. How many movies need to be rented each month for the total

*asked on September 26, 2010* -
## IPC

IF THE SIDE OPPOSITE A 45 ANGLE IN A RIGHT TRIANGLE 12.5 METERS, HOW LONG IS THE ANGLE?(ROUND THE ANSWER TO THE NEAREST TENTH)

*asked on April 14, 2010* -
## PHYSICS

The magnetic field inside an air-filled solenoid 39 cm long and 2.0 cm in diameter is 0.85 T. Approximately how much energy is stored in this field?

*asked on April 11, 2010* -
## PHYSICS

What is the inductance L of a 0.40 m long air-filled coil 3.2 cm in diameter containing 10,000 loops?

*asked on April 11, 2010* -
## PHYSICS

What is the inductance of a coil if the coil produces an emf of 8.20 V when the current in it changes from -28.0 mA to +31.0 mA in 45.5 ms?

*asked on April 11, 2010* -
## PHYSICS

A 14 cm diameter circular loop of wire is placed in a 0.58 T magnetic field. (a) When the plane of the loop is perpendicular to the field lines, what is the magnetic flux through the loop? (b) The plane of the loop is rotated until it makes a 36° angle

*asked on April 3, 2010* -
## chemistry

what is the maximum number of grams of PH3 that can be formed when 6.2 g of phosphorus reacts with 4.0 g of hydrogen to form PH3

*asked on March 21, 2010* -
## algebra

what is 4 to 4th power and show the process?

*asked on November 10, 2009* -
## chemistry

how do i convert these 0.25g = how many cgs 400 cm^3 = how many Ls and 400 cm^3 = how many m^3s?

*asked on February 11, 2008* -
## science

Which of the following is NOT found in animal cells? a. cell wall b. cell membrane c. organisms d. prokaryotes I think the answer is cell wall, but I'm not sure. Cell walls are only found in plant cells as far as I know. yes, a

*asked on March 25, 2007* -
## math

what is the difference between translation , rotation, relections, and dilation in 8 grade work In 8th grade talk, I recommend you check the examples in your book. OR, if you put your definitions here, I can critique them.

*asked on January 28, 2007* -
## Math

You’ve decided to paint your room instead of using wallpaper. You know you will need to apply two coats of paint to fully cover the walls. One gallon of paint will cover 400 square feet. How many quarts of paint will you need to purchase if there are 4

*asked on May 30, 2020* -
## Geometry

In right triangle ABC,

*asked on May 16, 2020* -
## Math

Fraction equal to 1 that has a denominator of 12

*asked on April 9, 2020* -
## History

What can you infer about the northeastern states by looking at the maps ?

*asked on March 30, 2020* -
## Chemistry

The molar heat capacity of C6H6(ℓ) is 136J/mol · ◦C and of C6H6(g) is 81.6 J/mol · ◦C. The molar heat of fusion for benzene is 9.92 kJ/mol and its molar heat of vaporization is 30.8 kJ/mol. The melting point of benzene is 5.5◦C, its boiling point

*asked on March 19, 2020* -
## science

A student throws a ball upwards from the ground level where gravitational potential energy is zero. At a height of 15 m, the ball has a potential energy of 60 J, and is moving upwards with a kinetic energy of 40 J. Ignoring air resistance, the maximum

*asked on December 5, 2019* -
## Math

A sum of money was shared among Aaron,Ben,and Charles in the ratio 2:5:7.If Charles's share was $1,180 more than Aaron's share,what was the original sum of money shared?

*asked on November 13, 2019* -
## Algebra

What is the answer for 2-11×^2-8×+6×^2

*asked on May 3, 2019* -
## Chemistry

How many grams of Oxygen are needed to react with 100g of Nitrogen monoxide?

*asked on March 21, 2019* -
## PHYSICS

A car, moving along a straight stretch of highway, begins to accelerate at 0.024 m/s 2 . It takes the car 61.8 s to cover 1 km. How fast was the car going when it first began to accelerate?

*asked on February 2, 2019* -
## geometry

the perimeter of a angle is 40 inches the ratio of lengths is 3:4:6: find the shortest side lengths

*asked on January 22, 2019* -
## Math

Micah has a new remotely controlled car that has a circular range with a radius of 30 feet. What is the area of the circular range?

*asked on January 16, 2018* -
## Chemsitry

A student reacts 0.506 grams of aluminum with excess KOH and H2O according to reaction one from the lab manual. 2Al + 2KOH +6H2O ---> 2K[Al(OH)4]+3H2 Enter your answers in numerical format. How many moles of aluminum was reacted? How many moles of

*asked on October 28, 2017* -
## Chem 1C

the hydrolysis of sucrose is a part of the digestive process. to investigate how strongly the rate depends on our body temperature, calculate the rate constant for they hydrolysis of sucrose at 35C given that k=1.0 mL/(mol*s) at 37C and that the Ea=108

*asked on October 17, 2017* -
## math

Sally graphs the geometric sequence an = 2(3)n - 1 on a coordinate plane where she plots an on the y-axis and n on the x-axis. This graph is the same as the graph of which type of function? A) cubic B) linear

*asked on May 5, 2017* -
## algebra

find the periodic payments necessary to accumulate the amount given in a sinking fund. Assume end of period deposits and compounding at the same intervals as deposits. $70,000 in a fund 7% per year, monthly payments for 5 years Thank you your time is

*asked on March 7, 2017* -
## Geometry

At a campground, a rectangular fire pit is 5 feet by 4 feet. What is the area of the largest circular fire that can be made in this fire pit? Use 3.14 for π. Round to the nearest square inch.

*asked on February 9, 2017* -
## Math

On friday,a cold front came through the city at 8am that dropped the outside temperature at an average rate of 2 degrees every half hour. Which integer represents the change in temperature from 8am to 11am

*asked on December 31, 2016* -
## math

Two cars leave Kansas City at the same time. One car is moving east and the other west. After 5 hours, the cars are 575 miles apart. One car is traveling 15 miles per hour faster than the other. Let S = the speed of the slower car and F = the speed of the

*asked on December 18, 2016* -
## math-circles

The area of two circles are in a ratio of 4:9. If both radii are integers, and r(1) - r(2) = 2, what is the radius of the larger circle?

*asked on December 16, 2016* -
## math

In pallelogram, ABCD, E is the midpoint of DC, AE intersecs BD at point O, the area of triangle DOE is 12cm^2, what is the area of triangle AOB?

*asked on December 16, 2016* -
## triangles

In triangle ABC, AB = 12, AC= 9, D is a point on AC, AD = 3. E is a point on AB, so that triangle ADE is similar to ABC, what is the length of AE? (two different answers)

*asked on December 10, 2016* -
## Math.

two concentric circle with the ratio of radii as 2:3, what is the ratio of the circumferences

*asked on December 10, 2016*