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Posts by logan

Total # Posts: 364

geometry
Triangle APQ is the image of ABC under a dilation centered at vertex A with scale factor 1/2 Triangle RBT is the image of ABC under a dilation centered at vertex B with Scale factor 3/4 which statement about ABC APQ and RBT is correct

Science
Which of the following would have more thermal energy? 200 mL of water at 100 degreesC or 100 mL of water at 100degreesC

math
Can an irrational number be a real number? (Yes) Therefore, B is false because being a real number does not imply being a rational number

Math
Oh, put the "Can these be checked" in the top of the post next time xD Your answer to question 3 is incorrect.

Math
Note that in my response, I made a typo in this line: "So you can look at something like question 1 and see that in all the possible answers, only option C has the same slope as the slope (-1) in y=-x-2. " I meant to write option D

Math
Eliminate all the answers that aren't parallel, then eliminate the answers which don't pass through the given point for X,Y So for the graph to be "PARALLEL" it must have the exact same slope. The "slope" is represented by the value in front of the...

Algebra 2
Step 1: Multiply first equation by ?1 and add the result to the second equation. The result is: -2x+2y+3z=0 -3y-2z=-3 2x+3y+3z=5 Step 2: Multiply first equation by 1 and add the result to the third equation. The result is: -2x+2y+3z=0 -3y-2z=-3 5y+6z=5 Step 3: Multiply second ...

Engineering
When we drive our car at 110 feet per? second, we measure an aerodynamic force? (called drag) of 61 ?pounds-force that opposes the motion of the car. How much horsepower is required to overcome this? drag?

Algebra
Basically she's traveling at 6mph (12mph - 6mph). To travel 3 miles at a speed of 6mph, she would need to paddle for 30 minutes

Algebra
2000 * .085 + 4000 * .0925

English help urgent
Yeah I looked up the question, it's supposed to be from an excerpt from The Lost Prince by Francis Hodgson Burnett. I imagine the answer is soot.

Algebra
9/4 = 2.25 Lay it out in an equation using x for your unknown. (2.25)% * (x) = 9 Divide both sides by 2.25% (or .0225) 9/.0225 = 400 x = 400

Algebraic equations real life problems
A book cover has the length and width(in inches) shown in the diagram. A) Find the values of a and b B) Find the perimeter of the book cover. Widths are top--3b in. bottom--(2+a)in. Lengths are left--(3a-b) in. And right--(2+a+2b) in.

Math
The area of a rectangular photo is 35 square inches. If the width of the photo is 5 inches, how tall is the photo?

Algebraic linear equations
Stefanie's train will leave the station in 24 minutes and she is y miles from the station. To catch the train, she walks at a speed of 4 miles per hour and later runs at a speed of 8 mph. Write an equation in terms of y for the distance she has to walk, w, to reach the ...

Probability & Stats
An experiments consists of tossing 4 coins successively. The number of sample points in this experiment is a. 16 b. 8 c. 4 d. 2 Please show work and why it is the answer! Thank you!

algebra
Simplify. Answer should contain only positive exponents. Please show work. (3a^2)^3 Thank you!!

Math
He got 210 because 180 + 30. 3 hours plus a half of an hour

8th Grade Math-exponents
Thank you!! It must be a typo in the book. Singapore Math. I appreciate all of your help!!

8th Grade Math-exponents
Thank you!! It must be a typo in the book. Singapore Math. I appreciate all of your help!!

8th Grade Math-exponents
Let me try writing it again... (X/2)^3*(X/2)^4 --------------------- (X/2^3)^2 I keep getting X/2^6, but the book says X/2^5. How do you get X/2^5????

8th grade math-exponents
I can't quite write the problem, so I'll try to explain it as best I can. In exponents and in fractions... (X/2) to the 3rd power times (X/2) to the 4th power...all over,or divided by, (X/2 to the 3rd power) to the 2nd power. The book says the answer is X/2 to the 5th ...

8th grade math-exponents
Let me try writing it again... (X/2)^3*(X/2)^4 --------------------- (X/2^3)^2 How do you get X/2^5????

8th grade math-exponents
I can't quite write the problem, so I'll try to explain it as best I can. In exponents and in fractions... (X/2) to the 3rd power times (X/2) to the 4th power...all over,or divided by, (X/2 to the 3rd power) to the 2nd power. The book says the answer is X/2 to the 5th ...

biology/science
Oxygen attracts electrons more strongly than hydrogen does. What kind of bond forms between the two hydrogen atoms and single oxygen atom that form a water molecule? A. A metallic bond B. A hydrogen bond C. An ionic bond D. A polar bond Currently stuck here.

science
What should be the range for the exponent of [H+] in solutions that are characterized as acidic? A. 0 to -0.07 B. 0 to 0.7 C. 0 to -7 D. 0 to 7

science
Which of the following is the pOH range of gastric acid? A. 1.5 to 3.5 B. 10.5 to 12.5 C. 1.5 to 2.5 D. 6.5 to 7.5

science
When are more products of a reaction available initially than at equilibrium? A. K = 0 B. Q < K C. Q = K D. Q > K

science
When Q < K, what can you conclude about the reaction? A. The reaction is not yet at equilibrium, and the reaction will proceed in the forward direction. B. The reaction is not yet at equilibrium, but the direction of the reaction must be experimentally determined. C. The ...

science
so c?

science
If the reaction is at equilibrium, which change will help to increase the amount of ammonia formed? 3H2(g) + N2(g) 2NH3(g) + heat A. Removing nitrogen B. Raising the temperature C. Lowering the pressure D. Adding hydrogen

science
What change do you expect if the value of the reaction quotient is greater than the value of the equilibrium constant? A. The rate of the forward reaction is greater than the rate of the reverse reaction. More reactant forms. B. The rate of the forward reaction is greater than...

science
How does deltaG° relate to K for a reaction? A. When deltaG° > 0, K < 1 and products are favored. B. When deltaG° < 0, K > 1 and products are favored. C. When deltaG° < 0, K < 1 and reactants are favored. D. When deltaG° > 0, K > 1 ...

Triangles
Determine whether the following lengths can make a triangle: 3, 5, 7

Triangles
Two sides of a triangle have lengths of 10 and 13. The length of the third side can be any number between _________ and ________.

Physics
What amount of energy is needed to change 1 kg of O degrees Celsius ice to 10 degrees Celsius water?

Math
The greatest amount of bouquets you could make is 3 because 3 is the least common factor and it goes into all the numbers equally

Algebraic inequalities
There are three kinds of fruit in a basket:apples, oranges, and pears. The number of apples is 1 less than the number of oranges. The number of pears is 2 times the number of apples. There are 17 fruits in the basket. How many of each kind are there?

Math
A landscaper installs 12 sections of trellis. Each section is 3/4 yards long. How many yards of trellis are installed altogether?

Stats
Fill in the table below regarding populations and samples. The first column represents the question the statistician is trying to answer. Fill in the blank(s) for each row. 1.Is my well water safe? 2.Are as many girls born as boys in the world? 3.Which works better, Advil or ...

chemistry
Determine the pH of a 1 M aniline solution (Kb = 4.2 10-10). I am unsure how to start, any help?

math
A company logo has 4 concentric circles suppose you graph the points (diameter,circumference ) and connect them with a line. In terms of (pie), what is the slope of the resulting line.

Chemistry
There is a question on my assignment that's asks how many moles of atoms are in x mol of CO2 (and a few others). Let X represent 5x10^-4. How do I do this? Teacher didn't really teach us this. I know in one mol of CO2 there is 2 moles of oxygen atoms, so how many in ...

math
hte4rgc44444rrrrrrrr

LA Story Teller
1 is C 2 is D 3 is C 4 is C 5 is B I just took the test

Math - Algebra
On test day, a teacher sharpens 19 pencils to lend out to his students. If n represents the number of pencils that the teacher lends out, which expression represents the number of pencils he has left? A) 19 - n B) 19 + n C) n-19 D) 19n *Please help!*

Math - Algebra
Evaluate t - u/v when t = -1, u = -3, and v = 1/2 I am VERY VERY unsure what the answer is. PLEASE HELP!!! I am stuck on this!!!

Hanahan
Use addition or substitution to find the value of y for this set of equations. 4x + 13y = 40 4x + 3y = -40

math
Does anyone know all the answers

Math
AMY IS RIGHT

SS
Lol I think its B

SS
Yes you guys really need to stop cheating

Chemistry
C is the answer

english cr
compare and contrast the two differnt versions of the story of the great chicago fire. how does the format of each passage allow the author to add details and information to support his/her purose?

Statistics
64

Physics
25 degrees

English check please
1. In the poems in this collection, who faces life with the most hopefulness and self-confidence? the speaker in “Life Doesn’t Frighten Me”********THIS ONE the speaker in “A Dream Within a Dream” the Oysters in “The Walrus and the Carpenter”...

ART Check
You were right on both! Thanks

ART Check
Brooch of Henry Clay This brooch contains a miniature picture of american statesmen henry clay. likely owned by clay or his ancestors this brooch is valued for what reason a)scholastic value b)provenance c)cultural heritage d)market value A museum is building a collection of ...

English Check please
C and d were correct thank you

English Check please
So C for 1? and thank you

English Check please
in a dream within a dream which phrase is a context clue to the meaning of grasp? While I weep--while I weep!/O God! Can I not grasp/Them with a tighter clasp? a) While I weep b)O God! Can I not c) with a tighter clasp d)can I not grasp them My answer is B Another one from A ...

algebra
How do I graph a direct variation when x=10, 20, 30, 40, and y = 4.5, 9.00, 13.50,18.00 Put x on graph going up by 10 and put y on graph at the bottom going across I am unsure of rest

Math
In a jar the number of blue marbles = twice the number of red marbles! there are 24 more blue marbles than red. How many red and blue marbles are in the jar?

math
How do I write an equivalent equation that does not contain fractions for 1/2 x -5 = 1/3

Chemistry
I'm not sure how to calculate the ΔH°rxn for 3 Al + 3 NH4ClO4 -> Al2O3 + AlCl3 + 3 NO + 6 H2O. I'm honestly not sure where to start with this problem.

5th grade math
how many flowers do I have if...1/4 are pink...2/5 of remaining flowers are red...18 are yellow

Chinese
My favorite: 我最喜欢 Wǒ zuì xǐhuān Egg: 蛋 Dàn Egg (specifically chicken): 鸡蛋 Jīdàn

algebra 2
Shalonda notices that when she stands next to the flagpole, she casts a shadow that is 8 feet long and that the flagpole casts a shadow that is 28 feet long. Little Shalonda is 4 feet tall. How tall, to the nearest foot, is the flagpole?

Science
If 2 cities on a globe is equal to 7cm, what is the actual distance between the 2 cities?

Chemistry
a 191 g piece of copper is heated to 100 C in a boiling water bath and then dropped into a beaker containing 755 g of water (density =1.00 g/cm3) at 4.0 C. What is the final temperature of the copper and water after thermal equilibrium is reached? (Scu=0.385 J/g•K)

Chemistry 30
Calculate the delta H for the reaction : 2H3BO3(aq) reacts with B2O3(solid) + 3H2O

math
Represent 30 degree increase in temperature as an integer. Would that be +30?

math
Is the amount of tax collected proportional to the cost of an item after tax has been added?explain

Math
I am a number between 20 and 30. When you divide me into 6 equal groups,there is an even number in each group and 2 are left over.what number am I?

statistics
suppose you roll two number cubes and pick a letter of the alphabet at random. find the probability you will roll two odd numbers and pick one of the letters k, l, or m.

art history
Which of Michelangelo's sculptures is a metaphor for courage, determination, and strength?

physics
A 0.250-kg aluminum bowl holding 0.800 kg of soup at 27.0°C is placed in a freezer. What is the final temperature if 430 kJ of energy is transferred from the bowl and soup? Assume the soup has the same thermal properties as that of water, the specific heat of the liquid ...

physics
=(1/2 m v^2)(.69)/(m C)

physics
A piece of iron block moves across a rough horizontal surface before coming to rest. The mass of the block is 1.8 kg, and its initial speed is 3.8 m/s. How much does the block's temperature increase, if it absorbs 69% of its initial kinetic energy as internal energy? The ...

pre-algrebra
melind wants to paint the exterior lateral surface of her house. It is nine feet high and has a perimeter of 140 feet. each gallon of paint covers 300 square feet how many one gallon cans of paint does she need to buy to paint her house

Math
Do u mean 9/39

Math
Assume you are working on a house the length of the house is 50 feet, the width is 30 feet, and from the ground to the gable is 10 feet. The height of the triangle prism on top is 6.5 feet. If you are going to shingle the roof of this house, how many square feet should you ...

Correction
Not understanding how to answer this You pore over the present evaluation: two intoxicated college females, one DUI and the other trying to run from police officers, both with no prior arrest, and both nursing majors at the local college. As judge, you must decide whether to ...

Math (7th grade)
7

Math
Thanks sweetie it's easy

physics
Two stones are thrown vertically up at the same time. The first stone is thrown with an initial velocity of 11.5 m/s from a 12th floor balcony of a building and hits hits the ground after 4.6 seconds. With what initial velocity should the second stone be thrown from a 4th ...

Chemistry
A gas occupying a volume of 664 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?

Chemistry
A gas occupying a volume of 664 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?

language and art
How to write a character sketch?

social studies
Welcome to Jiskha the home for cheaters XD

Social Studies
All I know is that it is Harrison. Can't remember why but it is.

physics
Just use (k*|q1|*|q2|)/r^2 It should come out as 1,638,427.5N

math
a pizza has a diameter of 18. what is the best estimate of the area of the pizza?

Physics
can anyone explain how they got their answer?

Math
1.5%h=12. What is h?

physics
A ferry boat is 6.2m wide and 7.1 m long. When a truck pulls onto it, the boat sinks 6.02 cm in the water. What us the weight of the truck? The acceleration of gravity is 9.81 m/s2. Answer in units of N

PLEASE HELP
PLEASE

College Algebra and Finance
Please help! Just need the answer... A lender gives you a choice between the following two 30-year mortgages of $200,000: Mortgage A: 6.65% interest compounded monthly, one point, monthly payment of $1283.93 Mortgage B: 6.8% interest compounded monthly, no points, monthly ...

math
A lender gives you a choice between the following two 30-year mortgages of $200,000: Mortgage A: 6.65% interest compounded monthly, one point, monthly payment of $1283.93 Mortgage B: 6.8% interest compounded monthly, no points, monthly payment of $1303.85 Assuming that you can...

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