# Posts by Lisa

Total # Posts: 3,422

BASIC ELEC
NAME THE 5 REQUREMENTS NECESSARY TO HAVE A SAFETY OPERATING ELECTRICAL CIRCUIT 1. CONDUCTOR 2. RESISTOR 3. SWITICH 4. CIRCUIT BREAKER IS THAT CORRECT? NAME 4 CONDUCTORS OF ELECTRICITY 1. COOPER 2. ALUMINIUM 3. BRASS 4. IRON IS THAT CORRECT ? WHAT ARE THE 4 FACTORS AFFECTING ...

statistics

statistics
I'm stuck on a question in MM207... Assume you want to estimate with the proportion of students who commute less than 5 miles to work within 2%, what sample size would you need?

ALGEBRA (SQUARE ROOT HELP)
am confused how would u do this 3√(3)

ENGLISH(romeo & Juliet)
What is the plan the nurse brings back from Romeo? is it this ? The nurse determines to get a ladder, which will allow Romeo to climb into Juliet’s room that night—because they will be married then and will do what married people do.

And you need to do the expirement to answer these questions

Alicia the fraction and mixed number i 1 and 5/14

chemistry
1. Show the e- dot structure for CuCl2, I2 and H2O. State the bond type and name. Show charges where necessary.

chemisstry
1. Show the e- dot structure for CuCl2, I2 and H2O. State the bond type and name. Show charges where necessary.

ENGLISH
is that right ???????????

ENGLISH
I don't get this from Act 2 Scene 3 What are your feelings about Friar Lawrence's involvement? Do you think he is right or wrong? Why? Use two quotes to support your answers. ITS FROM ROMEO AND JULIET

MATH
the square of a number is equal to the sum of 21 and 4 times the number. find the number X=-3 X=7 RIGHT?

pre Alg
3g - 9 = 6 +9 +9 3g=12 divide by 3 you get g = 4

MATH
so its x=7 x= -3

MATH
ok thanks

MATH
the square of a number is equal to the sum of 21 and 4 times the number. find the number WHATS THE EQUATION (AM CONFUSED ?)

its 4 and 5

the sum of the squares pf two postive consecutive even integers is 41. Find the integers.

Economics (inflation)
Hello! Could someone please check my answers for the first 2 problems and help me out with the 3rd? Thanks! 1. If the CPI in 1863 was 9 and the CPI in 2000 was 171.9, how much has inflation increased (%) since 1863? I used the inflation rate equation and got a 1898.89% ...

Calculus I Quick Optimization Problem
Could you please explain this problem step by step, thank you! You are planning to make an open rectangular box that will hold a volume of 50 cubed feet. What are the dimensions of the box with minimum surface area?

When the food relationship in a habitat are illustrated by means of diagram, the result is always a complicated web like pattern. This is due to the fact that 1 many consumers are adapted to use more than one food source 2 producer organisms always outnumber the consumer ...

Living environment
IN a natural community in New York State, the producer organisms might include (1) bacteria , fungi, and viriuses (2) deer, rabbits , and squirrls (3) grasses, maple trees , and weds (4) trout, peas, and earthworms I the answer 3 Which sequence illustrates a generalized food ...

Living environment
The apperance of the greatest percentageof white mice occured (1) before the maximum number of days of snow cover (2)at the same time as the maximum number of days of snow cover (3) after the maximum number of days of snow cover (4) both before and after the maximum number of ...

Living environment
1.All of Earth's water, land, and atmosphere within which life exists is known as a population b. an ecosystem c.the biosphere d. a biotic community IS THE ANSWER C

MATH plz helo check my answer
-3 ≤ 2x - 5 < 13 i thing the answer is 1 < x < 9 and how would you graph this on a number line so MY NUMBER LINE IS 1 TO 9, SO AT 1 i have a closed circle and at 9 i have a open circle and its shaded in is it right

ALGEBRA
Factor: 2x^2 - 5x + 2 am confused with this problem?

MATH
thanks

ALGEBRA 1
ARE THESE ANSWERS RIGHT ? Express as a trinomial: (2x-3)(x+7) IS THE ASNWER 2x^2 + 11x - 21 WHAT IS THE VALUE OF 2 times 5^-2 IS THE ANSWER 2/25 DIVIDE: x/x^2-49 divide by 5x^3/x^2 + 9x + 14 IS THE ANSWER x+2/5x^2(x-7)

MAth
thanks

ALGEBRA
thanks

ALGEBRA
how to do this find the volume of a cylinder if the radius is 8 inches and the height is 10in (ANSWER MAY BE LEFT IN TERMS OF PIE)

Can you please correct these two sentences, thank you for the help earlier by the way. =) La mayoría de sus pinturas marinas y meticulosas son oleo en lienzo The majority of his meticulous, marine paintings are oil on canvas. La verdad es que la marina yo no le importa...

Spanish
Can someone please proofread a biography I wrote? The English translation is below the Spanish. Salvador Abril y Blasco era un marinista que ya gozaba de buen reputación en el mundo artístico, y que ha obtenido algunas medallas en las Exposiciones Nacionales. &...

algebra
N(x)=-0.6^2+15.6x+12, where x is the number of days since the concert was first announced, When will daily ticket sales peak and how many tickets will be sold that day ticket sales peak- number of tickets sold-

algebra
The width of a rectangle is 3ft less than the lenght. The area is 4ft^2. Find the lenght and the width

algebra
The number of tickets sold each day for upcoming perfomance of Handel's Messiah is given by N(x)=-0.6x^2+15.6x+12, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?

algebra
1.Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in stadard form ax^2+bx+c=0 Solution 7, only solution 2.The width of a rectangle is less than the length. The area is 4ft^3. Find the length and the width.

psy
On p. 84 of the text, in the Thinking Clearly section, the conduction action potentials and activation of neurotransmitters is related to a row of mousetraps on a wobbly shelf. Think of another analogy you can use to describe the conduction of action potentials and activation ...

english
Fill the bags with donated gifts for the orphanage. The word BAGS is what kind of compliment? I.e. predicate adjective, direct object, indirect object, predicate nominative

Statistics
Suppose you gave a skill test to 3 different PE classes and want to know if they differ in terms of their scores. The skill tests scores are as follows: Class 1: 23, 21, 19, 22 Class 2: 18, 19, 21, 18 Class 3: 21, 20, 19, 22 Conduct an ANOVA and report the test statistic ...

Finance
why are dates on financial statements important?

math
the difference between a square root inside a bracket and one outside a bracket

English
I need help understanding adverb clauses...

Chemistry
Sorry still confused. Here's the problem: 0.249g of a diatomic element occupies a volume of 125mL at 120 degrees Celsius and 2.00 atm. This element IS? I used PV/RT =n so: 2.00 atm (.125L)/0.0821L*atm/mol*K (393K) = 11.96 then 0.249/11.96 =20.1 which is Neon. It isn't ...

physics
Suppose the time taken for light to bounce to and fro between the parallel mirrors of a light clock is 1 second, in the frame of reference of the light clock. As seen by another observer moving at high speed at right angles to the to-and-fro motion of the bouncing light, the ...

English
Select the gerund phrase in the sentence below. Then, determine the noun function of the gerund. Writing a research paper sounds difficult

Chemistry
Got it! H2S is bent. Thank you!

Chemistry
Are these shapes correct?PH3-trigonal pyramidal, CHCl3-tetrahedral, H2S-linear and PO4^-3-tetrahedral?

chemistry
Thank you! Sorry about duplicate entries-laptop acting funny.

chemistry
0.249 g of a diatomic element occupies a volume of 125mL at 120 degrees C and 2.00 atm. This element is? Please help. I'm lost.

chemistry
0.249 g of a diatomic element occupies a volume of 125mL at 120 degrees C and 2.00 atm. This element is? Please help. I'm lost.

chemistry
0.249 g of a diatomic element occupies a volume of 125mL at 120 degrees C ad 2.00 at. This element is? Please help. I'm lost.

Chemistry
Thank you!

Chemistry
A gas occupies a volume of 0.500L at 125 degrees Celsius and 0.443 atm. What mathematical expression will yield the correct temperature at 0.750 L and 0.689 atm? Is it the combined gas law of P2V1/T1=P2V2/T2?

Physics
A racing car has a mass of 1540 kg. What is its kinetic energy if it has a speed of 110 km/h? Assume that air resistance is negligible.

Math
Draw a curve and shade the area between z= -.35 and z= 35

math
Draw a curve and shade the area between z=1.15 and z=1.35

Intermediate Algebra
I need to know what the perpendicular equation is to x-3y=6 with the line through (-2,-9)

Intermediate Algebra
I need to know what the perpendicular equation is to x-3y=6 with the line through (-2,-9)

math
There are n people in a room. Each person will shake hands with every other person once and only once. How many hand shakes will there be?

Physics
In an electric shaver, the blade moves back and forth over a distance of 2.2 mm in simple harmonic motion, with frequency 116 Hz. Find (a) the amplitude (in mm), (b) the maximum blade speed, and (c) the magnitude of the maximum blade acceleration. I got that (a) is 1.1 mm, but...

spanish
Could someone please read my (corrected) summary in Spanish for grammar and fluidity? The English version appears below for help. Thanks! Spanish: Al principio del cuento, el narrador y su familia de braceros migratorios tenían que mudarse a Fresno porque la cosecha de ...

spanish
Could someone please proofread this summary in Spanish on a short story? The English version is also below. Thank you. Spanish: Al principio del cuento, el narrador y su familia de braceros migratorios tenían que mudarse a Fresno porque la cosecha de fresas se hab&...

chemistry
Thank you, Dr. Bob! Wish YOU would have written my chemistry book!

chemistry
Please help again. How many grams of lithium are required to completely react with 70.7 mL of N2 gas at STP when given the following reaction: 6Li + N2 = 2Li3N

algebra
During the first part of a trip a canoeist travels 71 miles at a certain speed. The canoeist travels 5 miles on the second part of the trip at the speed 5mph slower. The total time for the trip is 4hrs. Waht was the speed on each part of the trip

Chemistry
thanks! Duh! Got it! Yippie!

Chemistry
Here's how I worked it: P= ? n= 0.0155 mol v=206mL so .206L t=30C +273 is 303K then 0.0155mol *0.0821 L*atm/mol*K *303K divided by .206L which gives you 1.87 mmHg What did I do wrong?

Chemistry
What is the pressure in millimeters of mercury of 0.0155 mole of He gas with a volume of 206 mL at a temperature of 30 degrees C? I used the ideal gas law and ended up with 1.87 mmHg but it said that was wrong. Please help.

algebra 2
Write an equivalent expression using radical notation 1.(a^2b^2)^1/9 Use the laws of exponents to simplify 2.6^3/5* 6^5/10

spanish
1) un traje de baño 2)el impermeable 3)gafas de sol 4)los zapatos de tenis 5)centro comercial 6)tarjeta de crédito

Chemistry
Which is a polar covalent bond? PbCl2 or CS2?

math
Subject cars. A scale drawing if an automobile has a scale of 1 inch = 1/2 foot. The actual width of the .car is 8 feet. What is the width on the scale drawing

Math
What adds up to get 100%? 68% , 1/2 , 60% ,1/20 , 1% , 0.9 , 0.04 ,13/20 , 1/7 , 3/25 ,16% ,55% , 0.02 , 1/9 , 0.15 , 1/8 , 24% , 0.44 , 0.06 , 1/6 , 1/4 , 29% , 0.037 , 1/3 , 19% , 17/50

algebra
Darla is building a new deask. to make sure she had made a square corner, she measures 4ft. from the corner along one edge and 6ft from the corner long the othe edge . how long should the diaonal be between those two points if the corner is a right angle? (round to the nearest...

algebra
Guy wire. How long is a guy wire reaching from the top of a 24ft ploe to a point on the ground 16 feet from the pole What is the exact length? what is the lenght approximated to three decimal palces?

Physics
A 0.165-kg ball, moving in the positive direction at 10 m/s, is acted on by the impulse shown in the graph below. What is the ball's speed at 4.0 s?

Math
But we don't post to use a calculator. It says to estimate.

Math
What is 21% of 41? I think it is 10 but I'm not for sure.

statistics
Measures of Central Tendency,variability, and postion 12th Grade math class. organize the data 78,67,95,85,84,86,82,75,85,94,91,57,78,77,88,90,91,86,84,82,75,58,73,75. Then do 4 columns of Grades,Deviations,Squares,and Z-Scores

statistics
What is the probability that a student in a college of 650 students in both a math major and a computer science major ( assuming these events are independent) If there are 72 math majors and 105 computer science majors?

Cert III lab skills
Explain how to calculate preparing 250.0ml of 1.25 mol/L solution of Na2CO3(aq)

Math
Ragu ran the first 3 miles of a 5 mile race in 24 minutes. What percent of the race has he run? Please help me

phi 103
1. Logic can help analyze ethical problems. (Points : 1) True False 2. Putting an argument into premise-conclusion form can make it easier to (Points : 1) ignore the argument. think the argument is pretty. evaluate the argument. avoid the argument. 3. Karl Popper advocates, as...

math
If X=3 cm, Y=5 cm, Z=3 cm, W=5 cm, and V=2, what is the volume of the object?

math
Three cards are drawn without replacement from a well-shuffled standard deck of 52 playing cards. Find the probability that none is a face card.

geometry
Given l parallel to m, find the measures of each angle. <PTU

math
yes divide 141 by 7

Biology
describe the following processes in the plant life cycle and why they are important for the plant to complete, listing all of the plant hormones involved and describing their functions: 1) elongation of the plant shoot. 2) the process by which seeds orient themselves. 3) ...

algebra
1. Jodie biycles 5km/h faster than Predup. In the same time it takes Predup to bicycle 60km, Jodie can bicycle 75km. How fast does each bicyclist travel? 2.The officejet printer can copy Janet's dissertation in 20min. The LaserJet printer can copy the same document in ...

algebra
1. Find the LCM of (8+7), (64-49v^2), and (8-7v) 2. Find the LCM of 14x^7 and 98x^5 3. Find all numbers for which the rational expression is undefined 5/v-9

algebra
Hat sizes are determined by measuring the circumference of one's head in either inches or centimeters. Use ratio and porportion to complete the following table. hat sizes 7 1/4 7 1/8 Head circumference (to nearest 1/5inch) 22 4/5 Head circumference (to nearest centimeter...

algebra
Hat sizes are determined by measuring the circumference of one's head in either inches or centimeters. Use ratio and porportion to complete the following table. hat size Head circumference 7 1/4 (to nearest 1/5inch) 7 1/8 22 4/5 Head circumference (to nearest centimeter) 58

algebra
The stopping distance d of a car after the brakes are applied directly as the square of the speed r. If a car traveling 80mph can stop in 360ft, how many feet will it take the same car to stop when it is traveling 90mph

algebra
The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 58cm when the weight is 3kg, what is the distance when the weight is 8kg

algebra
The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 58cm when the weight is 3kg, what is the distance when the weight is 8kg

algebra
1. The speed of a passenger trin is 18mph faster than the speed of a freight train. The passenger train travels 260 miles in the same time it takes the feight train to travel 170 miles. Find the speed of each train.

Chemistry
Thank you so much, Dr. Bob! :)

Chemistry
Purple light in the visible region of the electromagnetic spectrum has a shorter wavelength than does the green region of the spectrum. Which of the following can you conclude? Is it: a)a photon of purple light has a higher frequency than does a photon of green light or b) ...

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