# sandy

Newest questions posted by sandy-
## Algebra

Provide an appropriate response. Suppose that A and B are two matrices such that A + B, A - B, and AB all exist. What can you conclude about the dimensions of A and B? A) A is a row matrix and B is a column matrix. B) A and B have the same dimension, but -
## math

A $76,000 trust is to be invested in bonds paying 8%, CDs paying 7%, and mortgages paying 10%. The bond and CD investment must equal the mortgage investment. To earn a $6670 annual income from the investments, how much should the bank invest in bonds? A) -
## math

A plane makes a 240-mile trip against a head wind in 1 hour and 30 minutes and returns, with a tail wind of the same speed, in 1 hour. What is the speed of the wind? A) 80 mph B) 200 mph C) 40 mph D) 160 mph -
## Algebra

How much will you have accumulated, if you annually invest $1,500 into an IRA at 8% interest compounded monthly for 40 years? -
## math

How much will you have accumulated, if you annually invest $1,500 into an IRA at 8% interest compounded monthly for 5 year? -
## Social Studies

Discuss the relationship between institutions (banks, business firms, government agencies, and unions) when it comes to making up an economic system. I couldn't find anything in google or my textbook, and if a full answer is cheating maybe just a little -
## World Studies

Portugal refused to sponsor him, but Columbus persuaded Ferdinand and Isabella of What to his voyage. -
## Algebra or Math help

Your friend thinks that the equation k - 3.5 = 21 is a true statement. Is your friend correct? Explain why and how you figured it out -
## Math

the interest rate on car loans increase from 8% to 9%. although this is a rise of only 1 percentage point, you will be paying ____% more in interest on you loan. If you interest payment was $400, what would it be with the increase? -
## STATISTICS

90% CONFIDENCE FOR THE MEAN TIME TO COMPLETE A TEST. POPULATION STANDARD DEVIATION OF 3 HOURS. SAMPLE SIZE IF THE ERROR SHOULD BE LESS THAN A HALF HOUR? -
## Calc

FInd the derivative of each of the following function. f(x)=xcosx+x^4e^2x All I know is the rule with the e^u equation where you would do e^2x times 1. other than that I dont know what to do can someone please help and show all work I will appreciate it -
## Math

Debbie flipped a coin 20 times. The result were 7 heads and 13 tails. What is the relative frequency of heads for her experiment? -
## Math

The area of a trapezoid is 720 cm square. The height is 10 cm. The two bases of the trapezoid are parallel. Find the length of each base, if one base is 3 times as long as the other. -
## education

I need help finding a local public policy web site and federal public policy website on foster care. -
## quick question

Are muscials considered plays? -
## pre calc

The population of a Midwestern city decays exponentially. If the population decreased from 900,000 to 800,000 from 2003 to 2005, what will be the population in 2008? Please help I got 670,422 and the computer marked it wrong i then tried rounding it to -
## pre calc

The population of a Midwestern city decays exponentially. If the population decreased from 900,000 to 800,000 from 2003 to 2005, what will be the population in 2008? Please help I got 670,422 and the computer marked it round i then tried rounding it to -
## Math

The volume of this cube is 343 cubic yards. What is the value of t? -
## Math

A positive integer is 2 less than another. If the sum of the reciprocal of the smaller and twice the reciprocal of the larger is 5/12, then find the two integers. algebraic expression is: 1/n-2 + (2)1/n = 5/12 -
## Algebra

-9 times the difference between a number and 63 is equal to the number plus 49 .Write the equation. -
## math

On December 10, 1999, Apple Computers' stock was valued at $615 billion; Microsoft's stock was valued in that quarter at $271 billion. How much more value is Apple's stock at its peak over Microsoft? -
## Math

An employee's annual salary was increased from $22,464.00 to $24,710.40 last year.If it is increased by the same percent this year,what will be the employee's salary? Thanks! -
## Math

12%+17%+3%=0.144612 The correct answer is 32% Please break it down to me where I can understand it. Thanks -
## ashworth

If the manager __________ here, we could meet the person who __________ all loans. A. were; approves B. was; approves C. were; approve D. was; approve -
## algebra

For three consecutive odd integers, the sum of 3 times the first integer and 2 times the second integer is 77 less than 4 times the third integer. What are the three integers? Please show work thank of you -
## science

calculate the mass of 120 cc of nitrogen at NTP. How many number of molecules are present in it? -
## Math

Matchstick Rings each pattern of square rings has been made with matchsticks which are all the same length. If the length of one side of a square ring is "m" matchsticks, try to find a formula, in terms of m, for each of the following: a) The outer -
## Math

Building Bricks A child is playing with building bricks like this one. He decides to build the simple tower shown. How many bricks would he need to build this tower? If the last column was 14 bricks high how many bricks would he need? If the last column -
## MATH

A beautiful Princess is locked inside the Castle. A Moat 15 metres wide surrounds the Castle. A Knight is attempting to rescue the Princess but he only has two planks of wood, both 14.5 metres long. How can the brave Knight bridge the Moat and rescue the -
## Math of investigation

Two identical circles are to be cut from a 12cm by 9cm sheet of paper. What is the maximum possible radius of these circles? Show that if the length of the sheet of paper is twice the breadth of the paper, then the radius of the largest circles which can -
## SOO URGENTT

A circular loop lies with its plane normal to a magnetic field given by B=(0.200 - 0.0200t) T, where t denotes the time in seconds. The induced emf in the loop is 1.36 V. Calculate the radius of the loop. -
## 11

SinA + sinB/sinA - sinB= tanA+B/2cotA-B/2 -
## Maths

How would the perimeter be affected if the side of the rectangle were increased by a factor -
## Math

What the relationship that happens between the increase of the length of the side and area or perimeter -
## Math

36 miles per gallon to miles per quart. (1 gal=4 qt) -
## Math

Ed is thinking of. number. If he adds four to his number, the result is less than 6. Write and solve an inequality about Ed's number -
## Math

In 35 minutes, 49 customers entered the store. At this rate, how many customers will enter the store in 2 hrs? -
## Chemistry

What is mass in grams of a pure iron cube that has a volume of 4.10 cm3 -
## science

when copper metal is added to silver nitrate in solution, silver metal and copper (II) nitrate are produced. what mass of silver is produced from 100.g Cu? -
## Operations with Integers

On a summer day, the low temperature of 75°F was reached at 6 am. The high temperature was reached 9 hours later, after the temperature rose 16°F. What was the high temperature that day? -
## Math

An automobile manufacturing plant produces cars according to a fixed pattern. During one day, the first five cars have the following colors and equipment. blue with a stereo and dark interior white with a stereo and light interior green without a stereo -
## Marh

An automobile manufacturing plant produces cars according to a fixed pattern. During one day, the first five cars have the following colors and equipment. blue with a stereo and dark interior white with a stereo and.light interior- green without a stereo -
## Math - Help!

The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6) -
## Algebra

Can someone help me with this? You have 2 tests with scores of 83 and 92, assuming you can't get a score over 100 on any test. Determine all possible scores you can get to score an average of 90 on all 3 tests. Represent the answer algebraically. -
## One Math

The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6) -
## Are all answers right?

The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6) -
## Help Math

The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6) -
## Check math please!

Anna mixes the letters S, E, L, E, C, T, E, and D thoroughly. Without looking, Mary draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that E will NOT be the letter Mary selects? A. 3/8, 0.375, 37.5% B. 8/5, 1.6, -
## Check math please!

Anna mixes the letters S, E, L, E, C, T, E, and D thoroughly. Without looking, Mary draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that E will NOT be the letter Mary selects? A. 3/8, 0.375, 37.5% B. 8/5, 1.6, -
## art

why did Picasso use cubism/ shapes in weeping woman? -
## math

Amanda can run 4/5 of a mile in 9 minutes.Express her speed as a unit rate in miles per hour. -
## math

input 10 output 5 input 15 output 6 input 20 output 7 input 25 output 8 what is the pattern thanks -
## Math

Hillside has 12 teams. Each team plays each other teams twice. How many games are played? -
## Math

The ski trip has to be cancelled. All 28 people must be told. In the first hour 2 people each call 2 people. The next hour each of the people called the hour before calls 2 people, and so on. How many hours will it take for all 28 people to be called? -
## MATH

help with expanding log base 5(x^2 times y)^4 -
## Math

Finneas plays with his toy mouse for 1/10 hour. then he chases a fly for 1/6 hour. How much longer does he spend chasing a fly than playing with his toy mouse? -
## Math

A computer screen measures 200mm by 150mm. What is the length of the diagonal? -
## Math

A square television screen has 19-inch diagonal. How long is a side of the screen, to the nearest tenth? Length of side______ Area_____ -
## Math

A square television screen has 19-inch diagonal. How long is a side of the screen, to the nearest tenth? Length of side______ Area_____ -
## Math

The student council sold refreshment at cost. A case of 24 cans of the fruit punch cost $7.68. Each can fills 1 cup of punch. A box of 48 cups cost $1.44. How much did the council charge for a cup of fruit punch? -
## physics

A box containing food supplies for a refugee camp was dropped from a helicopter flying horizontally at a constant elevation of 414.1 m. If the box hit the ground at a distance of 95.3 m horizontally from the point of its release, ... a) what was the speed -
## math

From the top of a light house the angle of incidence of the two ships are 45&30 degree respectively if both the ships are at a distance 200m from each other then find out the height of the light house -
## Math

The odometer on a car shows 26962 km. Notice that this number is a palindrome. After the car has travelled two hours at a constant rate, the odometer shows the next possible palindromic number. How fast is the car travelling? -
## community psycology

How each of “the four acts of qualitative research” would apply to you personally if you was doing this study. for prescription drug addiction -
## physics

When a car moves up an incline, does the kinetic energy and potential energy decrease or increase? -
## algebra i

two rubber balls are dropped from two different heights 136 ft and 287 ft. Find the function that describes them. I believe it is H(t) = -16t^2 + 136 and H(t) = -16 ^2 + 287. There are no answers in the book . I assumed velocity is 0. Am I correct? Thanks, -
## Math quadratic function

Jose bautista hits a baseball that travels for 142m before it lands. The flight of the ball can be modelled by a quadratic function in which x is the Horizontal distance the ball has travelled away from jose, and h(x) is the height Vertical distance of the -
## Math grade 11 uni

Jose bautista hits a baseball that travels for 142m before it lands. The flight of the ball can be modelled by a quadratic function in which x is the Horizontal distance the ball has travelled away from jose, and h(x) is the height Vertical distance of the -
## Math grade 11 u

Jose bautista hits a baseball that travels for 142m before it lands. The flight of the ball can be modelled by a quadratic function in which x is the Horizontal distance the ball has travelled away from jose, and h(x) is the height Vertical distance of the -
## Politics

Which of the following statements about interest groups is correct? -
## Math

I have no idea how to do inverse functions... How would I do this question? Y=-3x^2 - 18x - 25 -
## physics

A bullet is fired through a wooden board with a thickness of 10.0 cm. The bullet hits the board perpendicular to it, and with a speed of +390 m/s. The bullet then emerges on the other side of the board with a speed of +234 m/s. Assuming constant -
## 6th grade math

Mrs Roberts is 3 times as old as her son. The sum of their ages is 48 years. How old was Mrs. Roberts when her son was born? -
## 4th Grade Math

The ratio of the number of dogs to the number of cats at an animal shelter is 5:4, if there is a total of 153 cats and dogs, how many cats are in the shelter -
## Math

Kenji has a box containing many blue rods, each one 252 cm long. Mei-Ling has a box containing many green rods, each one 408 cm long. They each start making a long line of rods of their colour by laying rods end to end. After a while, their lines are -
## MATH

Really need help with this: You purchase a computer for $875.00 plus 5% sales tax. You decide to finance it through the store's 0% program for 12 months. The terms state that you must pay $100.00/month and that if you miss a payment, you will be assessed a -
## Math

Really need help with this: You purchase a computer for $875.00 plus 5% sales tax. You decide to finance it through the store's 0% program for 12 months. The terms state that you must pay $100.00/month and that if you miss a payment, you will be assessed a -
## MATH

You purchase a computer for $875.00 plus 5% sales tax. You decide to finance it through the store's 0% program for 12 months. The terms state that you must pay $100.00/month and that if you miss a payment, you will be assessed a late fee of $39.00 plus the -
## Math

You purchase a computer for $875.00 plus 5% sales tax. You decide to finance it through the store's 0% program for 12 months. The terms state that you must pay $100.00/month and that if you miss a payment, you will be assessed a late fee of $39.00 plus the -
## MATH

Suppose that you work at the Peacock Blue store for 40 hours over five days at a rate of $9.25/hour. You then quit your job. Deductions are FICA (7.65%), federal withholding (12%), and state withholding (8%). Your expenses are transportation at $5.25/day, -
## leal aspects of health information

Name the types of fraudulent billing. -
## legal aspects of health information

Dr. Pearson has recently been hired into the Central City Internal Medicine Group as its fifth physician. He has recently completed his residency and is eager to enter private practice. Dr.Pearson is introduced to Meredith and Dawn, two members of the -
## legal aspect of health information

is Dr. Pearson subject to liability although he doesn't know Meridith is conducting fraud activities -
## physical science

Picnickers see a lightning flash and hear the resulting thunder 9.0 s later. If the storm is traveling at a rate of 15 km/h, then how long, in minutes, do the picnickers have before the storm arrives at their location? -
## Chem

Copper(I) chloride has Ksp = 1.7 × 10-7. Calculate the molar solubility of copper(I) chloride in (a) 0.0858M HCl solution (b) 0.419 M HCl solution (c) 0.653 M CaCl2 solution -
## Math- MDM4U data Managment

How do you solve this question. I literally have no idea on where to start. "If the mean of the following numbers is /7, find the c value. Produce an algebraic solution. Numbers: 12, 18, 21, c, 13 Please help. -
## Maths

Runner A speed 1km/hour Runner B speed 2km/hour They start of at the same point at the oval.In a lap that is 500m, how many times will they meet at the starting point after 10 hours. I managed to get the LCM for runner A,B using the time taken to complete -
## Art

What advantage does multi-spectral analysis hold over the X-ray Machine? a. Multi-spectral analysis can analyze pigments that an X-ray cannot detect b. multi-spectral analysis reveals what is not visible to the naked eye c. multi-spectral analysis can be -
## Art

You would use different criteria to analyze different styles of art for all of the following reasons except A. the styles have different stylistic qualities. B. the expected skill set of the artists may vary. C. the subject matter may be drastically -
## Chemistry

A sealed container comtains 1.50 mol of nitrogen gas, 2.00 mol of oxygen gas and 3.50 mol of argon gas. If the total pressure is 900 kPa, what is the pressure of the nitrogen gas? -
## chemistry

A 5.0 L sample of nitrogen gas has a pressure of 95 kpa. What is the final volume of the gas if the pressure is tripled? I know p1 = 95, v1=5.0 and p2 = tripled What i don't understand is what number is tripled, is it 95 times 3?? -
## DrBob222 my previous question

You asked me to show my work for one of my questions a few minutes ago and i need you to verify my work because you said my answer was wrong -
## chemistry check my answer

In an acid base titration 32.5 ml of sodium hydroxide were neautralized by 17.6 ml of 0.180 mol/l sulfuric acid. Calculate the concentration of the sodium hydroxide. I asked this question earlier but i wanted to make sure i got the right answer My answer: -
## Science help please

Use the word bank below to answer the questions that follow: conservation carbon footprint decompose slower renewable biodegradable desertification fossil fuels aquaculture hydroelectric geothermal ozone land reclamation point decompose faster nuclear -
## Language arts check answers

If you fail to plan, you plan to fail. simple complex compound <----My choice compound-complex I was thinking about meeting Susan for dinner and then we could go shopping. compound simple complex <----My choice compound-complex Strawberries and -
## Math

Write the sum (in sigma notation) 1 + 3/2 + 2 + 5/2 + 3 + 7/2 + 4 Sigma notation? -
## Science one question!

Explain how gravitational, electrical and magnetic force act on a maglev train? I just need help on magnetic thanks! -
## Chemistry

I don't know how to do this question, or even start it. Please Help. 2 kg copper kettle (specific heat capacity 0.385j/gC) has .0500 kg of water at 20C. How much heat is needed to raise the temperature of the kettle and content to 80C? -
## math probability

How many three digits codes (single digits 0-9) are possible part A is codes must exceed value of 400 i think answer is 400 multiply 10 multiply 400 or 400x400x400 as three digits -
## math probability

In box containing marbles 1-75, how many ways A) first marble are chosen Answer, i think 1/75 Part B) two marbles are chosen i think answer are inconclusive Part C is ball with number 37 is chosen i think answer is 1/74