# Posts by Eva

Total # Posts: 203

**Math**

How is combing radicals by addition and subtraction similar to combining monomial expressions by addition and subtraction? Please use examples.

*February 8, 2017*

**Help on Social Studies please!**

Thanks, Ms. Sue. Got 8/8!

*October 26, 2016*

**Help on Social Studies please!**

Part A: What is the basic independent unit of world politics? a. country b. province c. nation *** d. organization Part B: Which of the following groups is an example of the basic unit you selected in the previous question? a. people who share a common language b. people who ...

*October 26, 2016*

**Chemistry**

Predict the effect of each of the following by mass of water in the hydrate and the chemical of the hydrate? a) not heating the hydrate enough b) overheating the hydrate and producing some copper (ii) oxide C) the initial hydrate appears to weigh less than it actually did, but...

*October 9, 2016*

**Economics**

analyze what happens to the market for cheeseburgers if the price of cheese rises (cheese being apart of the cost for a cheeseburger) . Be specific and explain what happens ( or is not affected) for each of the following: 1. the supply curve 2. the quantity supplied 3.the ...

*June 28, 2016*

**Chemistry**

When 0.07 moles of ammonium sulfate ((NH4)2SO4) are dissolved in enough water to make 254 milliliters of solution, how many ammonium ions are present?

*March 30, 2016*

**Chemistry**

A chemist dissolves 0.096 g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 10.8-mL sample of this solution is then transferred to a second 500-mL volumetric flask and diluted. What is the molarity of CuSO4 in the second ...

*March 29, 2016*

**Chemistry**

A chemist dissolves 0.096 g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 10.8-mL sample of this solution is then transferred to a second 500-mL volumetric flask and diluted. What is the molarity of CuSO4 in the second ...

*March 29, 2016*

**biology assignment**

Evapotranspiration

*March 17, 2016*

**Spanish**

fill in the missing letters in this sentence. Quizas anado una ---h---d-de--o picado tambien.

*March 2, 2016*

**Maths lit,business studies,consumer studies,tourism**

I chose this subjects Maths literacy,Consumer studies,business studies,tourism but i wanna know what can i do with does subjects after finishing school and i wanna become a 'Chef' are these subjects right or wrong for my subjects???

*January 13, 2016*

**physics**

A friend in another city tells you that she has two organ pipes of different lengths, one open at both ends, the other open at one end only. In addition, she has determined that the beat frequency caused by the second-lowest frequency of each pipe is equal to the beat ...

*December 1, 2015*

**Math**

-9(-5x+2)= -4(3x+2) I keep getting x=.30 but I know it's wrong!

*October 6, 2015*

**math**

Find period and phase shift and amplitude of y=10sin(x/4)-4pi)-5? The amplitude =10 Period=? Phase shift=?

*August 19, 2015*

**Math**

Solve -2x<9. x> ____

*May 21, 2015*

**Zoneton**

Solve: -2x<9. x>____

*May 21, 2015*

**Life Orientation**

The community members ,firstly got a permit to protest from Malamulele police station

*May 19, 2015*

**life orintation**

To be independent

*May 10, 2015*

**health**

potassium

*April 11, 2015*

**critical thinking**

thanks Ms Sue.

*March 17, 2015*

**critical thinking**

I reread and my answer is d.

*March 17, 2015*

**critical thinking**

Which of the following is an example of an indefinite pronoun? A. This B. You C. Which D. Each my answer is a.

*March 17, 2015*

**reading and writing**

Which of the following is a common error in composing a thesis statement? A. Your thesis statement is specific as opposed to general. B. You offer an original perspective on a familiar theme. C. You focus your thesis statement after you begin writing. D. Your thesis statement ...

*March 16, 2015*

**reading and writing**

a.

*March 16, 2015*

**reading and writing**

Please read the following excerpt from an essay. The sentences are numbered to help you respond to the question that follows. (1) After Sean was arrested for breaking into a pawnshop, I began to wonder. (2) Why did some kids from my neighborhood end up in trouble while most of...

*March 16, 2015*

**physics**

A block (mass m) hangs from a spring (spring constant k). The block is released from rest a distance d above its equilibrium position. (a) What is the speed of the block as it passes through the equilibrium point? (Use any variable or symbol stated above along with the ...

*March 8, 2015*

**learning skills**

a.

*March 8, 2015*

**learning skills**

A natural way to reinforce science process skills and introduces the scientific method. This strategy, especially appropriate for primary grades, is to have children do which of the following? A. Begin a collection B. Manipulate objects C. Observe D. Go on field trips my ...

*March 8, 2015*

**learning skills**

According to the text, why should teachers of young children share science activities with parents? A. Everybody should know the facts of science. B. Parents want to learn science. C. Science relates to all aspects of a child's life. D. Parents are their children's ...

*March 8, 2015*

**Pre-calc/trig**

The answer is only : A pendulum swinging back and forth. It cannot be the other options because when looking for a period behavior, we are also looking for something to come back to the initial starting point. Can't be the ball because logically it would eventually come to...

*March 6, 2015*

**Physics**

UPDATE: On 4, I tried using Δx=rΔӨ. It cleared up a lot of data issues.

*February 22, 2015*

**Physics**

In class, we've been working on moment of inertia and recently did a lab regarding its usage. I don't feel too confident with the material yet and was hoping someone could look over my work and offer advice on what to do. We used solid spheres in the lab (2/5mr^2 used...

*February 22, 2015*

**physics**

You work at a garden store for the summer. You lift a bag of fertilizer with a force of 122 N, and it moves upward with an acceleration of 0.760 m/s2.

*February 8, 2015*

**physics**

A 2011 kg elevator moves with an upward acceleration of 1.9 m/s2. What is the tension in the cable that supports the elevator?

*February 8, 2015*

**Physics**

A rope is attached from a truck to a 1403 kg car. The rope will break if the tension is greater than 2375 N. Neglecting friction, what is the maximum possible acceleration of the truck if the rope does not break? m/s2 If the truck can reach 30 mph within 7.5 s, should the ...

*February 8, 2015*

**COMBINED OPERATION ON FRACTIONS**

J MADE 3 OVER 5 OF JOURNEY 3 OVER 4 OF REMEINDER BY TRAIN N WALKED REST.DISTANCE WALKED 3 KM.HOW LONG WAS THE JOURNEY

*January 27, 2015*

**Physics I**

I'm not sure how to address any of these. I"ve attempted them but each time I do, I've gotten different answers. I'm not even sure where to begin. 1. The Duke’s efforts to conquer the Count are starting to really falter. He has been forced back away from ...

*December 16, 2014*

**Precalculus**

The revenue and cost equations for a product are R = x(50 - 0.0002x) and C = 12x + 150,000 where R and C are measured in dollars and x represents the number of units sold. How many units must be sold to obtain a profit of at least $1,650,000? What is the price per unit?

*December 11, 2014*

**Precalculus**

The revenue and cost equation for a product are R = x(75 - 0.0005x) and C = 30x + 250,000 where R and C are measured in dollars and x represents the number of units sold. How many units must be sold to obtain a profit of at least $750,000? What is the price per unit?

*December 11, 2014*

**Precalculus**

A rectangle is to be constructed so that it is bounded by the x-axis, the y-axis, and the line y = -3x + 4. What is the maximum area of this rectangle?

*December 11, 2014*

**Precalculus**

A farmer has 1000 feet of fencing materials available to fence a rectangular pasture next to a river. If the side along the river does not need to be fenced, what dimensions maximize the enclosed area? What is the maximum enclosed area?

*December 11, 2014*

**math**

the sides of a quadrilateral are in the ratio 1:3:5:7. if the perimeter of the quadrilateral is 64cm,what is the length of the second longest side/

*October 20, 2014*

**7th grade math**

11=3x-10 21=3x 7=x Ross scored 7 points?

*October 7, 2014*

**math**

If evies chicken lays 4 eggs in 5 days how many days will it take for evies chicken to 16 eggs?

*October 4, 2014*

**math**

If evies chicken lays 4 eggs every 5 days, how many days will it take for evies chicken to lay 16 eggs?

*October 3, 2014*

**Geometry**

Did I solve the following correctly? I had to the fin the midpoint. A (-3, 2) B (5, -4) I did the midpoint formula: M(-3+5/2, 2+ -4/2=M (2/2, -2/2). Is (2/2, -2/2) the correct midpoint?

*September 23, 2014*

**Literature**

Thank you so much! :)

*August 25, 2014*

**Literature**

The narrator is Scout. OH! Okay, so we learn about the characters through Scout's eyes and her points of view of them. Is that close to being correct?

*August 25, 2014*

**Literature**

American literature homework question: To Kill a Mockingbird? Can someone help me understand the following question, please?: Of all the ways an author has of telling us about a character, how do we learn about the characters in To Kill a Mockingbird? -I want to say it's ...

*August 25, 2014*

**Teaching in Early childhood progras**

Self appraisals should not be used to assess which of the following? A. Math concepts B. Dispositions regarding tasks C. IEP adherence D. Literacy my answer is c.

*August 18, 2014*

**Teaching in Early childhood progras**

are you sure

*August 18, 2014*

**Teaching in Early childhood progras**

1)When children rely on outside controls to guide their actions, they're operating at the _______ level of self-regulation. A. adherence B. amoral C. internalization D. identification 2)Which statement most accurately describes the Developmentally Appropriate Practices ...

*August 18, 2014*

**Teaching in Early childhood progras**

Why should teachers offer a variety of small-group activities for children every day? I. The children will be at different developmental levels. II. The children will be coming from different cultural backgrounds. III. Different children will be interested in different ...

*August 18, 2014*

**Teaching in Early childhood progras**

thanks

*August 18, 2014*

**Teaching in Early childhood progras**

_______ are helpful in assessing a variety of children's skills, including both cognitive abilities and motor skills. A. Art projects B. Smiley-face teacher evaluations C. Standardized tests D. Student-led conferences my answer is a.

*August 18, 2014*

**Teaching in Early Childhood Programs,**

thanks

*August 17, 2014*

**Teaching in Early Childhood Programs,**

Which of the following is least characteristic of internalization? A. It occurs at different times for different issues. B. It involves behaviors and attitudes that become basic parts of each child's personality. C. It involves some measure of self-condemnation. D. It ...

*August 17, 2014*

**math**

x square plus 12X plus 4 equals 0 what is the value of x

*August 6, 2014*

**Geometry**

Kevin has a salt water aquarium.As Shown below in the shape of a rectangular prism. ( base 36 in, width 18in,height 20 in) . When a rock is submerged into the aquarium the water level rises 0.25 inches. What is the voulume of the rock ?

*May 7, 2014*

**science**

When 4.56 g of a nonelectrolyte solute is dissolved in water to make 275 mL of solution at 22 °C, the solution exerts an osmotic pressure of 873 torr.

*April 25, 2014*

**Algebra**

Decide whether the given relation is a function of x. (NO CREDIT WILL BE GIVEN WITHOUT AN EXPLANATION). Give the domain. y=-7/x-16

*February 20, 2014*

**Algebra**

i try this one but graphmatica gives me different graph. Please help. Solve for y in terms of x and replace y with the function notation f(x). -2x + 5y = 9

*February 20, 2014*

**Math Algebra**

is this correct guys? F=k•g²•h 50=k(4) ² • 2 50=k•32 K= 50/32 divided by 2 K= 25/16 F= 25/16• (3) ² 6 F= 25/16 • 54/1 F= 1350/16 F= 84.375

*February 20, 2014*

**Math Algebra**

f varies jointly as g2 and h, and f = 50 when g = 4 and h = 2. Find when g = 3 and h = 6

*February 20, 2014*

**Essay**

I have the same problem ! And my intro's too long... I have a limit of only 700 words! I'm at 400 just with the intro and first body paragraph ! Please help...

*February 20, 2014*

**Algebra**

It is hard when you are taking online classes and professor doesn't explain anything. Thank you guys

*February 20, 2014*

**Algebra**

Let g(x) = -x2 + 4x + 1. Find g(k)

*February 20, 2014*

**Algebra**

Here is the question : Determine whether the equation represents direct, inverse, joint, or combined variation. y=2x^3

*February 20, 2014*

**Math**

Determine whether the equation represents direct, inverse, joint, or combined variation. y = 2x on 3rd

*February 20, 2014*

**physics (science)**

John walks 1.0 km north, turns and walks 1.2 km at 50 degrees north of due east, and then turns and walks .8 km at 25 degrees north of east. what is the resultant distance and direction he has flown

*October 25, 2013*

**statistics**

91

*September 16, 2013*

**math(Ms.Sue)**

6&1/2 gallons

*September 5, 2013*

**geometry**

WHAT IS ad TO THE NEAREST 10 ON A KITE WHEN THE KITE IS22,7, AND 12

*April 28, 2013*

**math**

simplify the expression 4/(x+2)-3/(x+2)

*April 24, 2013*

**law**

A crime scene investigator has located a witness at a crime scene, but he/she is uncooperative. The investigator strongly believes that this witness is fearful of something and is uncooperative. Describe the handling of witnesses and evidence. What would you as the ...

*April 10, 2013*

**Algebra**

I got 20 students... 7 students take math and band...9 take choir and math...and 4 take band and choir

*March 12, 2013*

**Trigonometry**

Why

*January 7, 2013*

**math**

im a little confused i still dont know how you got that can you walk me through it please

*December 3, 2012*

**statistics**

90% confidence; the sample size is 1150 of which 40% are successes.

*November 7, 2012*

**biology**

what would happen if an excess of mg(oh)2 is used

*September 23, 2012*

**physics**

A pelican ﬂying along a horizontal path drops a ﬁsh from a height of 3.3 m. The ﬁsh travels 8.7 m horizontally before it hits the water below. What was the pelican’s initial speed? The acceleration of gravity is 9.81 m/s 2 . Answer in units of m/s

*August 31, 2012*

**Math**

The length of a rectangle is 1 more than the side of a square and the width of the rectangle is 1 less than the side of the square. of the area of the rectangle 35, find the length of the side of the square.

*July 24, 2012*

**Physics**

In the reaction U gives Th + He 6.88*10-13 J energy are released as the kinetic energies of the products. If the ratios of the masses Th to He is 234:4 find the kinetic energy of the alpha particle

*February 23, 2012*

**physics**

In the reaction U gives Th + He 6.88*10-13 J energy are released as the kinetic energies of the products. If the ratios of the masses Th to He is 2.4:4 find the kinetic energy of the alpha particle

*February 23, 2012*

**Physics**

A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light, frictionless pulley. If the acceleration of the block is measured to be 1.0 m/s2, what is the coefficient of friction between the block and the table?

*February 21, 2012*

**English**

What was the Clinton Healthcare plan in the early 1990's? Know of any links or info that I can read up about it? Thanks!

*December 6, 2011*

**geometry**

obtuse because the angle is more than 90 degrees

*November 8, 2011*

**english**

correct these sentence. i had to rewrite them into reported speech . are they okay? 1-why are you decorating the house? she asked me why i was decorating the house. 2-what style do you like? she asked me what style did i liked. 3-do you always get what you want? she asked me ...

*October 25, 2011*

**agriculture**

How do I find the marginal profitability of using precision ag practices in wheat production?

*September 20, 2011*

**math**

how to figure out ? % of 25=20 and 25% of ? = 7

*April 25, 2011*

**Precalculus**

55-2+54 min --1/2 bacteria 54-2=51 min --1/4 bzcteria

*April 13, 2011*

**Calculus Please Help**

Oh... I got them... thanks anyways...

*April 6, 2011*

**Calculus Please Help**

Let f(x)=e^(2x)-kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the y-coordinate of the minimum. y= _____ ...

*April 6, 2011*

**Calculus Please Help**

Oh I got the answer... it was 275(9.574) -- (9.574)^3

*April 6, 2011*

**Calculus Please Help**

If 1100 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box. I'm supposed to type the answer in cubic centimeters... my answer was 2500 cm^3 but it's wrong... I have also tryed with ...

*April 6, 2011*

**Calculus (pleas help!!!)**

Let f(x)=e^(2x)-kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the y-coordinate of the minimum. y= _____ ...

*April 6, 2011*

**microeconomics**

among monopoly, oligopoly, monopolistic competition, and perfect competion, how would you classify the markets for each of the following drinks? a. tap water b. bottled water c. cola d. beer

*March 16, 2011*

**microeconomics**

among monopoly, oligopoly, monopolistic competition, and perfect competion, how would you classify the markets for each of the following drinks?

*March 16, 2011*

**Calculus**

tan 0=1 csc 0 = sqrt. 2 cos 0 = sin 0 os 0 = cos (-pie/6) The 0s means that symbol for angle. Please someone help me do these problems.

*March 8, 2011*