# Matthew

Newest questions and responses by Matthew-
## English

“She asks my name, and when I tell her she hoots, ‘Barbara Bush!’ Despite my vigorous protestations, the joke is repeated twice during the breakfast service.” Why is it, most likely, that Barbara Ehrenreich protested “vigorously” to the joke

*asked on January 13, 2019* -
## English

(Nickel and Dimed) Ehrenreich’s experiences with low-wage workers revealed to her that in general, these workers treat each other A. as competition for higher-level jobs within the company B. as professionals who can help each other gain success C. with

*asked on January 13, 2019* -
## integrated science

please help me If the following elements were involved in a chemical reaction, which one would be most likely to form a cation? chlorine (Cl) nitrogen (N) potassium (K) fluorine (F) I think it is A.

*asked on December 19, 2018* -
## HELP AP Biology

I need help. I read over my book over and over again and I still don't get the question or even know how to answer it. Describe the process of speciation in relation to change in gene frequency, change in environment, natural selection, and genetic drift.

*asked on December 6, 2018* -
## Math

A cone is inscribed in a sphere of diameter 32 cm. Angle between height and slant height of the cone is 30. Find the volume of the cone.

*asked on November 29, 2018* -
## Math

A cone has base area of 17pi m2 and volume of 34pi m3. Find the angle between slant height and the base plane.

*asked on November 29, 2018* -
## Math

What angles do lateral faces make with the base plane of a rectangular pyramid with base edges of 10 m and 16 m and with lateral edges of 18 m each? Please help!

*asked on November 29, 2018* -
## Math

How do I find the angle between lateral edges of a regular triangular pyramid if the edge is 60m and the height is 18m? Please help!

*asked on November 29, 2018* -
## world history

What impact did the Silk Road have on Marco Polo’s expeditions to the Mongolian Empire? Marco Polo traveled the Silk Road to reach Mongolia but the path was too treacherous and led to Polo’s death. Macro Polo used the Silk Road to reach the Mongolian

*asked on November 29, 2018* -
## Geometry

Does a regular nonagon have point symmetry? I know it has rotational symmetry but I am not sure if it would work for point symmetry I think I would.

*asked on November 21, 2018* -
## math

A car skids to a stop, leaving four skid marks with an average length (D) of 60 feet. The road is asphalt. Skid tests reveal a drag factor(f) of 0.75. Since all four wheels were braking, the braking efficiency (n) is 100% or 1.00. To the nearest mile per

*asked on October 2, 2018* -
## Math

X+ 13/x=8/3

*asked on May 25, 2018* -
## pre-ap chemistry

HOW MANY GRAMS OF OCTANE WOULD BE NEEDED TO RELEASE 3,500 kJ OF HEAT? 2C8H18 + 25O2-----> 16CO2 + 18H2O DeltaH= -5,530 kJ/mole of reaction

*asked on May 2, 2018* -
## Math (Word Problems)

Hello and I’m sorry, I was wondering how to solve this problem, it looked easy at first but it was really difficult to find the answer. Here’s the question: A recipe for 6 quarts of punch calls for 3/4 cups of sugar. How much sugar is needed for 9

*asked on February 20, 2018* -
## Reading

You are writing to a teacher or an administrator at Edwards school. The context of your letter should state the reason why it is important to teach the Holocaust. Today, you are to write your first paragraph stating your main reason. Please do not simply

*asked on January 22, 2018* -
## Chem

At room temperature and pressure RbI crystallizes with the NaCl-type structure. (a) Use ionic radii to predict the length of the cubic unit cell edge. (b) Use this value to estimate the density. (c) At high pressure the structure transforms to one with a

*asked on January 2, 2018* -
## Maths

Two concentric circles are such that one circle has half the radius of the other. If a point is chosen at random inside the larger circle, the probability that it also lands outside the smaller circle is?

*asked on November 21, 2017* -
## Science

Witch of the following shows the path followed by nerve impulses in a reflex

*asked on October 31, 2017* -
## Math

The smaller angle between the hands of a clock at 8:43 is what?

*asked on October 25, 2017* -
## Math

A sum of $7260 is invested at 11 1/4 % simple interest for one year. The amount, in dollars, that must be invested at 7 1/2% simple interest for one year to earn the same amount of interest?

*asked on October 25, 2017* -
## Chemistry

Potassium superoxide, KO2, is used for producing oxygen and removing carbon dioxide in selfcontained breathing units, space shuttles, and other enclosed spaces. First the potassium superoxide reacts with moisture to release oxygen and produce potassium

*asked on October 15, 2017* -
## Chemistry

Suppose you have a mixture that contains CaCl2, plus other compounds that do not react with AgNO3. If 0.2918 g of the mixture yields 0.4462 g of AgCl, what is the percentage of CaCl2 in the mixture (thats what was missing from the prior q). Also what did

*asked on October 13, 2017* -
## Chem

An organic compound containing only C, H, and possibly O was subjected to combustion analysis. A sample weighing 0.4801 g yielded 1.014 g CO2 and 0.498 g H2O. What is the empirical formula of the compound? I got C5H12O2. Please let me know if this is

*asked on October 13, 2017* -
## Chem

CaCl2 reacts with AgNO3 in aqueous solutions to produce a precipitate of AgCl that can be filtered and weighed. The balanced equation for the reaction is: CaCl2 (aq) + 2 AgNO3 (aq) → 2 AgCl (s) + Ca(NO3)2 (aq) I got 59.22%.

*asked on October 13, 2017* -
## Biology

A stock protein sample that has a concentration of 250.0mg/ml. You need to dilute this sample to 20.0 mg/ml in buffer. The final volume of the diluted solution is 5.0ml. how much of the stock protein solution and buffer are required to achieve this? Answer

*asked on October 12, 2017* -
## Chemistry

A mixture of KCr(SO4)2 and its hydrate KCr(SO4)2•12H2O has a mass of 1.6336 g. After heating to drive off all the water, the mass is only 1.4659 g. What is the weight percentage of KCr(SO4)2•12H2O in the original mixture? Report your answer to 4

*asked on October 10, 2017* -
## Math

Nine wonderful students decided to buy their math teacher an expensive present, each contributing the same amount of money. Four other students found out about the plan and joined in, agreeing to pay their share of the present's cost. This resulted in a

*asked on September 20, 2017* -
## How many beats are in a measure of 3/8 time?

A)2 B)3*** My ansnwer C)4 D)8

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

How does the duration of a quarter note compare to a dotted quarter note? A) longer B) shorter**** my answer C) the same

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

to which subset of real numbers does the number -22 belong?

*asked on September 12, 2017* -
## algebra

simplify log (xy/z^2) log^5square root a^4/b^2

*asked on September 12, 2017* -
## algebra

thank you Steve for helping me out. Accurately classify the sequence and then create a corresponding explicit and recursive formula for finding the nth terms of each sequence. A. 32, 30, 28, 26,..... B. 9,-3, 1, - _1 .......

*asked on September 12, 2017* -
## algebra

find a quadratic model and term number the last given for 10,12,16,22,30,40,....516

*asked on September 11, 2017* -
## algebra

the second and fifth terms of an arithmetic sequence are 5 and 38 respectively. Find the explicit formula for the sequence

*asked on September 11, 2017* -
## algebra

If Ron put $1000 of his money into a bank account that earns a 2.3% annual interest rate, how much will he earn after 10 years if the interest is compounded A. yearly, B monthly? C. continuously?

*asked on September 11, 2017* -
## Math

The number of 3 digit odd numbers with no repeated digits is?

*asked on September 10, 2017* -
## English

In "Girls Can We Educate We Dads?," the writer uses dialect for all of the following reasons except to A) create a sense of rhythm B) emphasize the speaker's voice C) emphasize the speaker's viewpoint D) illustrate the theme of defiance

*asked on September 1, 2017* -
## College Chemistry

A 86.3mL sample of water is initially at 17.4 degC. How many kilojoules (kJ) of heat must be added to raise the temperature of the water to 31.8? The specific heat capacity of water is 4.184 J/g.degC. How do I set this up to find the answer. Really

*asked on June 14, 2017* -
## Chemistry

How many moles of nitrate ions are present in 24.0mL of a 2.93M solution of potassium nitrate? I'm thinking this is some form of unit conversion problem I know that M= molarity which is mol/L how ever I am confused on how to set this up and input

*asked on June 5, 2017* -
## english

Which of the following contains a comma splice? Geraldine is a volleyball star, she generated most of the points for her team. ** Obviously, the pull of gravity effectively keeps us from flying off into space. The letter on the coffee table, a note from

*asked on May 30, 2017* -
## english

Which sentence is correctly punctuated? Ivan arrived late to the theater, consequently, he could not enter until intermission.** Ivan arrived late to the theater consequently, he could not enter until intermission. Ivan arrived late to the theater.

*asked on May 30, 2017* -
## Probablity

Having a hard time with this question: Help Please With Replacement: This is a multi-stage experiment. There are 7 colored cubes in a bag. The colors are purple, blue, red, orange, white, yellow, and green. This is a multi-stage experiment with dependent

*asked on April 30, 2017* -
## Math

This 3 dimensional shape has 6 faces that are triangles as well as one base that is a polygon. What is this shape?

*asked on April 30, 2017* -
## Probablity

Having a hard time with this question: Help Please This is a multi-stage experiment. There are 7 colored cubes in a bag. The colors are purple, blue, red, orange, white, yellow, and green. This is a multi-stage experiment with dependent events. Determine

*asked on April 30, 2017* -
## Probablity

There is a bag with 200 cubes in it. Some of the cubes are red and some are black. You reach into the bag 20 times, each time picking up random cube, recording its color, and putting the cube back in the bag. You picked 7 black cubes and 13 red cubes. With

*asked on April 30, 2017* -
## math

Circle the prime numbers in the following set of numbers. Show your work. 953, 1,427, 2,971 I can tell whether each number is prime but I am having a hard time with individual numbers

*asked on April 29, 2017* -
## Chemistry

If 50.00 mL of 0.250 M barium nitrate are combined with 50.00 mL of 0.400 M sodium sulfate, how any grams of precipitate will form? I'd really appreciate it if someone could walk me through this problem. I don't want the answer, I just want to have a hint

*asked on March 12, 2017* -
## pre calc

write the equation in the slope-intercept form 8x − 3y + 6 = 0

*asked on January 4, 2017* -
## History

PLEASE HELP!!! What role did the city of Wittenberg, Germany play in the renaissance?

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

PLEASE CHACK MY ANSWER!!! Discussion for Applications of Linear Systems When solving a system of equations, how do you determine which method to use? My answer: I determine which method to use by looking at the equations. If both equations are in

*asked on December 15, 2016* -
## very hard PHYSICS QUESTION

Consider a solid ball of mass m = 50g and is placed on a long flat slope that makes an angle of 30° to the horizontal. The ball was initially at rest and was then released such that it rolled down the slope without slipping. With a detailed explanation of

*asked on November 21, 2016* -
## Physics

query=a stone of mass 30grams is placed in a measuring cylinder containing some water. the reading of the water level increases from 50cm cubic to 60cm cubic. what is the density of the stone?

*asked on November 10, 2016* -
## Algebra

you are the manager of a firm that produces two products X and Y at zero cost. there are three types of consumers(1000 of each type) with the following valuations of the two products. consumer type Product X($) ProductY($) 1 90 60 2 70 140 3 40 160 What

*asked on October 27, 2016* -
## Science-physics

A bottle weighs 35g when empty,95g when filled with water and 119g when filled with an organic liquid. What is the capacity of the bottle: A-60cm cube B-84cm cube C-130cm cube D-154cm cube

*asked on October 26, 2016* -
## Math

A submarine at -28 feet dives 40 feet. What is the submarine's elevation after the dive?

*asked on October 23, 2016* -
## Chemistry

A sample of cobalt, A, with a mass of 5g is initially at 25 degrees Celsius. When this sample gains 6.70J of heat, the temperature rises to 27.9 degrees Celsius. Another sample of cobalt B with a mass of 7 g is initially at 25 degrees Celsius. If sample B

*asked on October 17, 2016* -
## social studies

Mrs. Sue I need your help. Which statement BEST describes the power of government provided by the Articles of Confederation? A) The national government held most of the power. B) Congress enforced its power by taxing the states. C) The states had more

*asked on October 12, 2016* -
## Math

All the odd numbers from 51 to 5001 are written. What is the total number of digits used?

*asked on October 4, 2016* -
## math probability

Assume that every time you buy an item of the Hong Kong Disney series, you receive one of the four types of cards, each with a cartoon character Mickey, Minnie, Donald and Daisy with an equal probability. Over a period of time, you buy 6 items of the

*asked on September 27, 2016* -
## Algebra

A rock is thrown upward with a velocity of 21 meters per second from the top of a 48 meter high cliff, and it misses the cliff on the way back down. When will the rock be 7 meters from the water, below? Round your answer to two decimal places.

*asked on September 21, 2016* -
## Math

Find the area of each triangle with the given dimensions Base=3 centimeter, height =3centimeter

*asked on June 28, 2016* -
## Ecology

an endemic species is best defined as a species that

*asked on June 5, 2016* -
## Physics

A charge of -5.02 μC is traveling at a speed of 8.86 × 106 m/s in a region of space where there is a magnetic field. The angle between the velocity of the charge and the field is 54.6o. A force of magnitude7.85 × 10-3 N acts on the charge. What is the

*asked on May 17, 2016* -
## Chemistry

What is the molar mass of toluene if 0.85 g of toluene depresses the freezing point of 100 g of benzene by 0.47 degrees celsius? Kf= 5.12 C/m

*asked on May 6, 2016* -
## math

A crowd of people is watching a live TV show in an auditorium. Section B of the auditorium has eight rows of seats. Each row has 10 seats. If 75 percent of Section B is occupied, how many people are seated in that section?

*asked on April 25, 2016* -
## Chemistry

At 350 K, Kc = 0.142 for the reaction 2 BrCl(g) ⇀↽ Br2(g) + Cl2(g) An equilibrium mixture at this temperature contains equal concentrations of bromine and chlorine, 0.077 mol/L. What is the equilibrium concentration of BrCl?

*asked on April 23, 2016* -
## Physics

Bob (80 kg) lands with a resultant GRF of 1200 N at an angle of 80 degrees from the horizontal. Round answers to nearest whole number. What was his vertical acceleration during landing?

*asked on March 20, 2016* -
## Functions, graphs

f(x)=(x+1)/(1+x^2) a) explain why the graph lies above the x axis on the interval x=0 and x=sqrt(3) b)write an expression using the indefinite integral that gives the area between the graph f and the x axis between the values x=0 and x=sqrt(3). c)use

*asked on March 5, 2016* -
## Math Algebra

Learning Center would like a possible net profit of $650,000 on its new resource manual it sells to schools. The fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. If the estimated unit sales are 1,250,000 units,

*asked on February 26, 2016* -
## Physics

A spherical satellite has 12 identical monopropellant thrust chambers for attitude control with the following performance characteristics: thrust (each unit): 5 lbf; Is (steady state or more than 2 sec): 240 sec; Is (pulsing duration 20 msec): 150 sec; Is

*asked on February 19, 2016* -
## Physics

(Someone please help me !! I don't understand this.) Two tiny conducting spheres are identical and carry charges of -27.3C and +61.0C. They are separated by a distance of 2.64 cm. (a) What is the magnitude of the force that each sphere experiences? (b) The

*asked on February 9, 2016* -
## math

Chelsea has 10 yards of yarn. How many bows can be made if each bow uses 2/3 yard of yarn? Draw a diagram that represents the situation. How many 2/3 yard did he cut? Does he have any left over? How much? Write a division sentence to show the situation.

*asked on February 3, 2016* -
## chem

The temperature of a 80.0 g sample of mate- rial increases from 15.0◦C to 42.0◦C when it absorbs 4.00 kJ of energy as heat. What is the specific heat of this material? Answer in units of J/g · K.

*asked on February 1, 2016* -
## English

I have to do a 10-minute speech based on this: Give an account of Britain’s colonial policies concerning Africa, Australia, India, and New Zealand in the 19th century. I have little to no prior knowledge of this, so I'm not really sure where to start, or

*asked on December 10, 2015* -
## Algebra

If x varies directly as y and x=9 when y=2 find x when y is 6

*asked on November 24, 2015* -
## geography

Where did the Cold War take place?Please just be specific(answer in countries).

*asked on November 16, 2015* -
## math

Least to greatest quart gallon liter pint cup deciliter

*asked on November 9, 2015* -
## Programming

Create and test a Visual Basic application to allow teachers to enter student results. One dimension of the array will hold the results for up to 10 students. The other dimension will hold up to 5 subjects. Additionally a string based array will hold the

*asked on October 28, 2015* -
## Norman

Algebra 2 The difference of two numbers is 4. Three times the smaller minus the larger is 10. Find the numbers.

*asked on September 30, 2015* -
## science

What is the rarest element?

*asked on September 29, 2015* -
## math

What is the hardest expression in the world?

*asked on September 28, 2015* -
## math

What is 57 divided by 2.95

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

A scuba diver dives to a depth to a of 50 feet, then rises 15 feet, sinks 12 feet, then rises 20 feet, whats the answer?

*asked on September 14, 2015* -
## Math

Suppose that a wind is blowing in the direction S45°E at a speed of 50 km/h. A pilot is steering a plane in the direction N60°E at an airspeed (speed in still air) of 150 km/h. The true course, or track, of the plane is the direction of the resultant of

*asked on September 14, 2015* -
## Algebra 1

Find the range of f(x)=-x+4 for the domain {-3,-2,-1,1} A) {7, 6, 5, 3} B) {7, 6, 5, 4} C) {-7,-6,-5,3} D) {-7,-6,-5,4}

*asked on June 30, 2015* -
## governmnt

Congress convenues every two years on_____of every____ year.

*asked on May 8, 2015* -
## Pre-calc

There exist constants a, b, c, and d such that(sin x)^7 = asin 7x + bsin 5x + csin 3x + dsin x for all angles x. Find d. I tried rewriting them in the exponential form, but it becomes ugly as there are many negative cosines and divisions of i. Help?

*asked on April 7, 2015* -
## Physics

A skateboarder approaches the circular hill with a velocity of 8.0 m/s at point B. The angle formed between the lines that join point AO and BO is 20 degrees. a) what is her speed at the top of the hill(Point A) if she coasts up to this point? b) what min

*asked on April 7, 2015* -
## chemistry

why doesnt the radius ratio rule work for TlCl3??? the division would be the radius of the cation / radius of the anion. For Tl3+ and Cl-...88pm/181pm = .49 which would correspond to a 'zinc blende' crystal structure and not a CsCl type crystal as the rest

*asked on March 7, 2015* -
## math

A cyclist covers his outward journey downhill at 24mph. His return journey, over exactly the same distance uphill, is covered at only 12mph. What is the cyclist's average speed over the entire journey?

*asked on March 5, 2015* -
## Chemistry Help

How many moles of H2 and N2 can be formed by the decomposition of 0.250 mol of ammonia, NH3? Is it 0.250*3mol H2=0.75 0.25*1mol N2=0.25 Am I correct?

*asked on February 28, 2015* -
## Chemistry Help

How many milliliters of 0.534 M Ba(OH)2 solution are needed to completely neutralize 34.5 mL of 0.220 M HBr solution? The reaction is Ba(OH)2(aq) + 2HBr(aq) → BaBr2(aq) + 2H2O(l) I did 0.0345 * 0.220 = 0.00759 Moles of HCl =2*0.00759= 0.01518

*asked on February 27, 2015* -
## Chemistry Need Help

Given the chemical equation, Cl2 + F2 2ClF, how many moles of ClF are produced in the reaction, if 1.50 moles Cl2 are made to react with 1.75 moles F2 ? I got the answer 3.50 moles but it was wrong. Can anyone help me please.

*asked on February 27, 2015* -
## Math

1 inch = 15 miles: Franklin to Washington is 45 Miles (3 inches) Franklin to Lincoln is 30 miles (2 inches) How much farther from Franklin is Washington than is Lincoln? I worked it out to be 7 1/2 miles but my teacher says I am wrong? She says the answer

*asked on February 25, 2015* -
## science

two small spheres lie 1.5 meters apart and carry identical charges. How large is the charge on each if a sphere experiences a force of 2.0 N.

*asked on February 24, 2015* -
## Math

47. For science class, Kyle needs to make a dilute solution of 12 ounces that is 30% vinegar. But he only has 20% vinegar 60^ vinegar. How many ounces of 20% vinegar should he use? A. 3 ounces B. 6 ounces C. 9 ounces D. 10 ounces

*asked on February 18, 2015* -
## Math

In triangle ABC, the degree measure of angle A is 20 degree greater than the degree measure of angle B. Angle C is a right angle. What is the measure of angle B? Is it 70 degrees. 90-20=70

*asked on January 28, 2015* -
## Calculus

F(x) = 3/4x^4 –x^3 -3x^2 + 6x Determine the interval(s) where f(x) is increasing (if any) and the interval(s) where f(x) is decreasing (if any). How do I know where f(x) is increasing or decreasing?

*asked on January 12, 2015* -
## sociology

What does "Social Space" mean when we talk about location

*asked on January 3, 2015* -
## Sociology101

I have to write an essay for my Intro to Sociology class. Do I write it in MLA or APA style?

*asked on January 2, 2015*