# Posts by me

Total # Posts: 1,369

geography
What types and forms of caulking are available for insulating homes? please help i tried searching them up but each website had different info.

Language arts-Johnny Tremain
beginning to end

Language arts-Johnny Tremain
how has the political climate of Boston changed since the beginning of the book?

language arts
did it end up being c?

Physics
some one please answer these questions. people r struggling that's why they search on internet

Science Help!!!!
Do your own homework. You might learn something and be successful in life.

Answers are ADC=100% I just did this and got a perfect score. Guys the answers are A,D,C

chemistry
720

English
KISS MY ASSSS

Health
She's not guessing the answer – she's just giving us the wrong answer because she knows that we use this to cheat on our exams.

grammar
Drank

physics
i realized the last time when i got it wrong, I put in; w=Fdcos20 =51(44)(20) when i should've put; w=51(44)(cos20)

physics
k thanks :)

physics
A child pulls a 13 kg sled across the snow at a constant 1.6 m/s [N] applying a force of 51 N [N 25 deg U]. How much work have they done after pulling for 44 m? Round answers to the nearest whole number. m=13kg Vcon=1.6m/s F=51N d=44 cos theta=25 W=Fdcostheta? I don't know...

Science Help!
Bless your heart @Diana I LOVE YOU

artist
For conexus the correct answers are (A C A) I got 100% and was very happy!! :)

algebra
20x I think

physics
Ten , one rupees coin are put on the top at of each other on a table. Each coin has a mass 'm'. Give the magnitude and direction of - (1)- The force of 7th coin (counted from bottom) due to all coins on its top. (2)- The force of 7th coin by 8th coin. (3)- The reaction...

physics
Give the answer completely i don't understand it

Chemistry
How many moles of solid Mg(OH)2 should you add to 200mL of 0.15M lactic acid solution to produce pH 4.0 buffer? -I don't know how to do this w/0 knowing pKa, but I don't think the point is to look up pKa. Is there some other way to solve this?

Science
I'm

Algebra
I'm in sixth grade I really need help with it

Physics
57

Chemistry II
Dr.Bob222 please help given the following table of thermodynamic data substance delta HofF S PCl3 -288.07 kJ/mol 311.7 J/mol-k PCl3 -319.6 kJ/mol 217 J/mol- k determine the normal boiling point (C)of PCl3

Math
the lcm of two numbers is 60 and one of the numbers is 7 less than the other number, what are the numbers?

algebra
32

Chemistry
How many chemical reactions are possible regarding the formation of carbonic acid and the dissolving of calcite? A. 23 B. 10 C. 2 [D.] 3 ?

Physics
I got two answers. Using d=148.7, df=30.1, Vi=10m/s First I got 26.73s, then I got 48.49s not sure wich is right...if any

Physics

algebra I
Idk

geo
A line contains the points (8, 9) and (–12, –7). Using point-slope form, write the equation of the line that is parallel to the given line and that passes through (–5, –15).

Geometry
.11764?

Geometry
What is the probability of drawing three red cards, one at a time without replacement, from a standard deck of 52 cards?

Whats this
Africa, middle east,asia

Geometry
Let the sides be a, b, and c. Then the total surface area is 2(ab+bc+ca)=22, and total length of all the edges is 4(a+b+c)=24. Hence, ab + ac + bc = 11 and a + b + c = 6. We want to find the length of the internal diagonal, which is √a^2 + b^2 + c^2. First, we square the...

Geometry
First, we note that the cubes of volume 8 and 27 must have edges of length 2 and 3, respectively. Hence, their surface areas are 6 * 2^2 = 24 and 6 * 3^2 = 54, respectively. The largest possible surface area that the cubes could share is the area of one face of the smaller ...

thank you

Luther Burbank was a plant breeder who developed a strain of potato plant that produced more tubers (the part of the root that people eat) of larger size than other potato plants that were grown on farms at the time. This strain of potato was also resistant to the potato ...

science (CHECK plz)
How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could occur in individual...

science (check plz)
1)When evolution was first proposed, which of the following was used as evidence to support the idea? A)observations of nature B)laboratory experiments C)extensive fossil collections*** D)genetic sequences

haha thank you Ms.Sue

oh i see, so its C

sorry i don't get it

suppose a species od flowering plant produces primarily blue flowers but also some very pale blue (almost white) flowers the blue color attracts pollinators but the white color does not herbivores feed on this plant and locate it by its blue flower color the white flower color...

social studies (check plz)
thank you

social studies (check plz)
(which of the following is not part of part of the theory of evolution?) a organisms tend to produce more offspring than can survive to reproductive age*****? b organisms can acquire changes during their lifetime that can help their species survive. c organisms that do not ...

science (help)
What environmental pressures in the past do you think were most important in shaping the human species as it exists today?

math check
you and 5 friends go to a concert in how many different ways can you sit in the assigned seats? . . . . . . . . . . . A.720***? . B.120 . C.30 . D.15 (dont remember if i had posted this)

math (cant figure it out)
you own 7 pairs of jeans and want to take 2 of them with you on vacation. In how many ways can you choose 2 pairs of jeans? . . . . . . . . . . . A.60 . B.21**? . C.20 . D.10

thank you!

simplify 9C4! . . . . . . . . . . . . . . . . . . . . . . A. 126 . B. 15,120 . C. 5 . D. 3,024******

english
for vague pronouns what is correct. when the car hit a tree, it made a terrible noise or the care made a terrible noise as it crashed into a tree?

thank you for checking!

simplify 8P3! . . . . . . . . . . . . . . . . A. 42 . B. 336********? . C.40,432 . D.56

math *check* (PERMUTATION)
thank you again :)

math *check* (PERMUTATION)
simplify 3! . . . . . . . . A.2 B.5 C.3 D.6*************?

thank you Chelle :)!

The probability of a certain hockey player making a goal after hitting a slap shot is 1/5 how many successful slap shots would you expect her to make after 120 attempts? . . . . . . . . . . . . . My answer: 24

thank you :)

13. A true-false test has 12 questions. What is the probability of guessing the correct answers to all of the questions? (1 point) A: 1 over 4096*******? B: 1 over 144 C: 1 over 24 D: 1 over 14

math *check*
thank you!

math *check*
11. A basket contains the following pieces of fruit: 3 apples, 2 oranges, 2 bananas, 2 pears, and 5 peaches. Jonas picks a fruit at random and does not replace it. Then Beth picks a fruit at random. What is the probability that Jonas gets a peach and Beth gets an apple? A: ...

10. You have six \$1 bills, eight \$5 bills, two \$10 bills , and four \$20 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill. What is P(\$1, then \$10)? A. 77/190 B. 3/100 C. 3/95*****? D. 2/5

math (cant figure it out)
A spinner is divided equally into six parts with the letters F,G,E,I,Q,O. If you spin the spinner twice, what is P(vowel, then Q)? A. 1/10****? B. 1/9 C. 2/9 D. 1/12.

math *check*
haha sorry and thank you i had figured it out but couldn't guess 2 times :)

math *check*
oops i mean A

math *check*
8. Each of two urns contains green balls and red balls. Urn one contains 8 green balls and 12 red balls. Urn two contains 5 green balls and 8 red balls. If a ball is drawn from each urn, what is P(red and red)? A. 79/65 B. 24/65 C. 20/33******? D. 2/13

ohhhh i get it! thank you!!

7. A bag containing 4 green marbles, 6 red marbles, 14 orange marbles, 5 brown marbles, and 8 blue marbles. You choose a marble, replace it, and choose again. What is P(red, then blue)? A. 48/1369 B. 14/1369 C. 27/37 D. 14/37***?

thank you!

6. Food Express is running a special promotion in which customers can win a free gallon of milk with their food purchase if there is a star on their receipt. So far, 147 of the first 156 customers have not received a star on their receipts. What is experimental probability of...

math *check*
thank you!

math *check*
A bag contains 9 green marbles and 11 white marbles. You select a marble at random. What are the odds in favor of picking a green marble? A. 9:20 B. 2:9 C. 11:9 D. 9:11***?

math (cant figure it out)
thank you and i had asked my teacher and she said it was scheuled to be updated since the question was wrong.

math (cant figure it out)
4. A spinner is divided into 10 equal sections numbered from 0-10. You spin the spinner once. What is P(not even)? A. 3/5 B. 1/2 C. 5/11 D. 6/11 (I DON'T GET THIS)

math (cant figure it out)
3. A number cube is rolled 120 times. The number 4 comes up 47 times. What is the experimental probability of rolling a 4? What is the theoretical probability of rolling a 4? A. 47/120; 1/30*****? B. 47/120; 1/6 C. 4/47; 1/6 D. 1/6; 47/120

thank you for correcting me!

2. A jar contains blue, red, yellow, and green marbles. P(blue)=1/4. What type of probability is illustrated and why? A. Experimental; the result is based on the number of possible outcomes. B. Experimental; the result is found by repeating an experiment. C. Theoretical; the ...

math *check*
1. You roll a number cube numbered one to six 12 times. P(5)=2/3. What type of probability is illustrated and why? A. Experimental; the result is based on the number of possible outcomes. B. Experimental; the result is found by repeating an experiment. C. Theoretical; the ...

Physics
A train on a mountain railway is carrying 200 people of average mass 70kg up a slope at an angle of 30° to the horizontal and at a speed of 6.0 m s–1. The train itself has a mass of 80 000 kg. The percentage of the power from the engine which is used to raise the ...

fixed question (science check plz)
A portion of the amino acid sequence of an enzyme from a worm is shown below. -Q-Q-Q-N-N-N-C-C Analyze the same portion of the same enzyme taken from several other organisms. Place them in order from most closely related to the worm most distantly related to the worm. -Q-R-Q-N...

science (help)
A portion of the amino acid sequence of an enzyme from a worm is shown below. -Q-Q-Q-N-N-N-C-C Analyze the same portion of the same enzyme taken from several other organisms. Place them in order from most closely related to the worm most distantly related to the worm. -Q-R-Q-N...

science (help)
a portion of amino acid sequence of an enzyme froma worm is shown below -Q-Q-Q-N-N-N-C-C analyze the same portion of the same enzyme taken from several other organisms place them is order from most closely related to the worm to the most distantly related to the worm...

science (check!)
Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between the starfish and green snake? a. sequence the same gene in both species to compare their similarity. b. dissect specimens of both species to look for ...

Physics
A wind turbine has blades that sweep an area of 2000m2. It converts the power available in the wind to electrical power with an efficiency of 50%. What is the electrical power generated if the wind speed is 10ms–1? (The density of air is 1.3 kg m–3.)

k12
I am sure of this because I took the test

k12
Well the correct answer would be B

Science
Do your own homework. You might learn something and be successful in life.

science (check!)
A biologist made population counts of four different species of animals in an ecosystem. What can you infer from these numbers about possible predator-prey relationships between the species? Species A:155 Species B:17 Species C:2467 Species D:19 A.Species A could be a predator...

science
8.two species have a relationship with one another in an ecosystem. suppose one of these two species goes extinct. which type of relationship did the two have if the surviving species population increases after the other goes extinct? A.the extinct species was a parasite in a ...

science (CHECK plz)
8.two species have a relationship with one another in an ecosystem. suppose one of these two species goes extinct. which type of relationship did the two have if the surviving species population increases after the other goes extinct? A.the extinct species was a parasite in a ...

science (check plz)
thank you,and for 4. could it be b?

science (check plz)
3.A nonnative species of animal is introduced into A healthy ecosystem.In its new environment, this species has no predators, although it preys on several native animals in the ecosystem.Make a prediction about the biodiversity and health of this ecosystem in the future. A....

science (check!)
2.A biologist studying a desert ecosystem observes that the population of a lizard species increases following a particulary hot, dry period that causes a snake population to decline what could the biologist hypothesize bout the roles of these two species? A.the lizard preys ...

other science checkkk
1.Which of the following could be true of two different species that have a competitive relationship in the same ecosystem? A.One species preys on the other***. B.The relationship is mutually beneficial. C.They share the same niche. D.One species benefits, while the other is ...

last science check
haha thank youuu!

last science check
A** i mean

last science check
6. Which of the following pairs of words correctly completes the blanks in the sentence below? Depletion of_____ has been halted by a ban on the manufacturing of____ .. the ozone layer, chlorofluorocarbons. acid rain, carbon dioxide. fossil fuels, gasoline. global warming, ...