Posts by ANONYMOUS

Total # Posts: 109,712

Math
1/2 of a rectangle is painted red. 2/3 of the remainder is painted blue and the rest of the rectangle is painted yellow. What fraction of the rectangle is painted blue? What fraction of the rectangle is painted yellow?

Geometric progression
Find the number of terms in G.Pgiven thatits first&last term are 5 1/3k&243k/256 respectively&that its common ratiois3/4

Alegbra
(I'm not too sure on how to do this type of thing) Given: Angle 2 and Angle 4 are vertical angles m?2 = 125° Prove: m?4 = 125°

Alegbra
Given: Angle 2 and Angle 4 are vertical angles m angle 2 = 125 degrees Prove: m angle 4 = 125 degrees

Algebra
A small acting club has 6 members. Three of the members are to be chosen for a trip to see a Broadway play. How many different 3 -member groups are possible?

Algebra
The coach of a soccer team is holding tryouts and can take only 2 more players for the team. There are 8 players trying out. How many different groups of 2 players could possibly be chosen?

Algebra
Sorry, I meant to ask if these were correct.

Algebra
need help checking Create a 2-column proof for the following equation. X + X + 10 + 2(2X + 10) = 180 X + X + 10 + 2(2X + 10) = 180 (Given) 2X + 10 + 2(2X + 10) = 180 (Simplify) 2X + 10 + 4X + 20 = 180 (Expand) 6X + 30 = 180 (Simplify) 6X = 180 - 30 (Subtract) 6X = 150 (...

Algebra
A company's board of directors wants to form a committee of 3 of its members. There are 4 members to choose from. How many different committees of 3 members could possibly be formed?

algebra
Miguel has 6 CDs that he is going to give away. He lets his best friend choose 3 of the 6 CDs. How many different groups of 3 CDs are possible?

Algebra
A small acting club has 6 members. Two of the members are to be chosen for a trip to see a Broadway play. How many different 2 -member groups are possible?

school
is 1,2,3 the correct answer for number 13?

school
13)1,2,3

school
4)All of the above 13)2,3,4 16)1,3,4

school
1) A great way to teach math is through children's everyday experiences. Answer:True 2) Children can use words they have never had experience with or heard before. Answer:False 3) Children with limited experiences have limited language ability with regard to semantics or ...

School
So the correct answer is true right?

School
There is very little relationship between language and thought. Answer: False

school
Teachers should avoid showing children written images until they are able to read. Answer: False

Geometry
Using the Law of Syllogism 1. Using the Law of Syllogism create (write) as many new conditionals as possible using the following conditional (true) statements. • (If a dog is a gazehound, then it hunts by sight.) If it hunts by sight, then it is a gazehound If it is not a...

Algebra
The coach of a soccer team is holding tryouts and can take only 3 more players for the team. There are 5 players trying out. How many different groups of 3 players could possibly be chosen?

Physics
From the ideal gas law, calculate the volume per helium atom in a litre of helium gas kept at room temperature and atmospheric pressure. Additionally, calculate the length of the side of a cube with this volume.

Physics
A gun of mass 0.1kg has a bullet of mass 0.1kg,the bullet laves the piston when fired at a velocity of 200m/s. Find the final velocity. (a) 20m/s (b) 23m/s (c) 30m/s (d) 45m/s (e) 15 m/s Please kindly help me with the questions I posted. Thank you

Physics
A car X moving of mass 500kg accelerates at 1m/s2 when the force due to the engine is 600N. Starting from rest, a car of mass 1000kg accelerates steadily to 20m/s in 10 secs. What is the average power developed

Algebra
A restaurant has 7 pizza toppings to choose from. How many different 2 -topping pizzas are possible?

Physics College
A see-saw 3.76 meters long perfectly balances on its own at its center. Two children get on the see-saw. One, weighing 345 N, sits at the left hand end. The other, sits 25.0 cm in from the right hand end. The see-saw is perfectly balanced with the children sitting in these ...

Algebra
Ali has been given a list of 6 bands and asked to place a vote. His vote must have the names of his favorite and second favorite bands from the list. How many different votes are possible?

Physics
A boy weighing 650 N wants to cross a creek by using a 5.00 meter long plank as a bridge. He places the plank across the creek and begins to walk across. Consider the supporting forces to be at the ends of the plank, and the plank itself to be weightless. At one point, the ...

math
I hoping all of the steps would be written out as it has been awhile since I have had a math class.

Algebra
In a dog show, there will be a gold and a silver medal awarded. There are 4 finalists. In how many different ways can the 2 medals be awarded?

Algebra
Carmen is choosing a 3 -letter password from the letters A, B, C, and D. The password cannot have the same letter repeated in it. How many such passwords are possible?

math
cost price of article A is 200 more than cost price of B.A was sold at 10% loss and B at 25% profit. if overall profit profit earned after selling both article is 4% what is cp of article B?

Physics
Maximum rang to which a boy can throw a ball is 40m maximum hight the bal atain

Math
There are 60 pupil in a class.out of them 25 play football, 20 play hockey and30 cricket,12 play football and hockey 9 play hockey and cricket play cricket and football. 5 play all the games.Find how many of them play. 1) none of the games 2)only cricket 3)only football

Analytic Chemistry university
what is the ph of 50ml buffer solution which is 2M in CH3COOH and 2M in CH3CooNa? 1 Initial PH before the addition of acids and base? 2 What is the new PH after 2ml of 6.00M HCl is added to this buffer? 3 what is the new PH after 2.00ml of 6.00M NaoH is added to the original ...

Chemistry
Find the number of molecules of sodium bicarbonate present in 5.08 gram

college- math
a children's theater found in a random survey that 58 customers bought one snack bar item, 49 bought two items, 31 bought three items, 4 bought four items, and 8 avoided the snack bar altogether. use this information to find the expected number of snack bar items per ...

college- math
a fair die is rolled 3 times. A 4 is considered "success", while all other outcomes are "failures." find the probability of the number of success a) 2 b)3

math
Terese manages a grocery store warehouse that encourages volume shopping on the part of customers. Therese has discovered that on any given weekday, 70% of the customers' sales amount to more than $100. that is, any given sale on such a day has a probability of 0.70 of ...

probabilities in statistics
let two cards be dealt sucessively, without replacement, from a standard 52-card deck. find the probability of each event. a) club dealt second, given a diamond dealt first. b) the first card is the ace of hearts and the second is black

Math
A boy walk 1260m on a bearing 120degree.how far south is he from his starting point

Algebra
A painter needs to purchase enough paint to paint a bedroom that consists of four walls. Two of the walls are 11 feet by 10 feet and the other two walls are 12 feet by 10 feet. The paint is sold in 1 gallon cans, and each gallon of paint will cover an area that is ...

math
Parallelogram PARL is similar to parallelogram WXYZ. If AP = 16, PL = 24, and WZ = 96, find the value of c.

Phsyics
A source of light is used to illuminate a screen. 1m from the source, the intensity of the light falling on the screen is 12 000 lux. Calculate the intensity on the screen at distances of: a) 2m b) 3m

physics
if the displacement of a particle varies with time as root of x=t+7 what is the relation between the velocity and time

math
A sum of money is divided among 3 persons X, Y and Z, in the ratio 10:7:5 , if Y gets raise 140 more than Z , how much will X get?

Statistics
What's an example of two variables from your intended career that you would like to draw a Scatterplot for and subsequently to compute a Correlation Coefficient for and to derive the equation of the Scatterplot's corresponding Regression Line.

Brains; Invisible Gorilla (book)
Oops, I forgot the question mark (?), I meant Right? not Right.

Brains; Invisible Gorilla (book)
QUESTION 1 Human memory accurately records events like a video camera. True False <---- Right QUESTION 2 Our brains can’t waste energy recording everything in detail. True False <---- Right QUESTION 3 We construct memory after the fact. True <---- Right False ...

Brains!
We construct memory after the fact. a) True <--- Right? b) False

Brains!
The answer seems to be True!

Brains!
My answer is False, am I right?

Brains!
Our brains can’t waste energy recording everything in detail. a) True b) False

The Psychology of Love
Commitment is usually at its peak at the beginning of a relationship a) True b) False

Algebra
Translate the sentence into an equation. The sum of a number times 6 and 8 is 7 . Use the variable b for the unknown number.

physics
I am not so sure about the answer but I think : D1=12m ,T1=3secs ,D2=30m ,T2=3secs Initial velocity = V=d1/t1=12m/3secs=4m/s Please bear with me for I just showed my opinion, any mistake can be corrected .Thanks

math
Dawn and Emily each had the same length of ribbon. Both girls used their ribbons to make identical bows. Dawn made 12 bows and had 128 cm of ribbon left. Emily made 9 bows and had 176 cm of ribbon left. How many bows could Emily make with the ribbon she had left?

math
Louis had 135 action figures, Sam had 990 action figures and Jane had 570 action figures. after jane gave an equal number of action figures to both boys, Sam had 4 times as many action figures as Louis. How many action figures did jane have left?

math
Natasha had 2356 beads, Lydia had 1176 beads and Munah hadn 1708 beads at first.After they each used an equal number of beads, Natasha had 3 times as many beads left as Lydia. How many beads did each of them use?

Physics
Two point charges, q1 and q2, of 4.00 uc each, are placed -6.0 cm and 6.0 cm away from the origin on the x-axis. A charge q3 of -1.00 uC is placed 8.0 cm away from the origin on the y-axis. a. Find the distance from q3 to q1 and from q3 to q2. b, Find the magnitude and the ...

Physics
Two point charges, q1 and q2, of 4.00 uc each, are placed -6.0 cm and 6.0 cm away from the origin on the x-axis. A charge q3 of -1.00 uC is placed 8.0 cm away from the origin on the y-axis. a. Find the distance from q3 to q1 and from q3 to q2. b, Find the magnitude and the ...

Maths
There are 28 drawingbooks and 72 scrapbooks in a bundle how many books will be there in a 144 such baskets?

physics
a car is moving with speed 30m/s .Due to application of brakes it travels 30m befor stopping .Find its accelaration

MATH
DETARMINE THE LARGEST FOUR DIGIT NUMBER WHICH IS DIVISBLE BY 18 25 35

physics
A wire rectangle, 13 cm by 17 cm, has a resistance of 1.8 ohms. The magnetic field inside the loop is uniform and described by the equation B = B0e-at, where B0 = .65 Tesla and a = 200 s-1. The field is perpendicular to the plane of the loop. What is the current induced in the...

math
now i got 12500. is this correct?

math
17307.69???

math
renu took a loan at si rate of 6% in 1 yr with an increase of .5% in each subsequent yr.he paid interest of rs 3375 after 4 yr.how much loan did she take?

Math
The total weight of the shape blocks on both sides of Kim's pan balance equals 30 grams. Circles weigh 5 grams, squares weigh 10 grams, and triangles weigh 3 grams. The right side has circle and square. How many triangles are on the left side? A) 5 B) 4 C) 6 D) 10 Answer ...

math
A 75.0g sample of liquid contains 17.5% by mass of H3PO4 (molar mass = 98.0g/mol). If 215.0mL of Ba(OH)2 is needed to completely neutralize the acid, determine the concentration of the Ba(OH)2 solution used

Chemistry
Assume that 50g of KCl is dissolved in 100g of water at 100*C and the solution is allowed to cool to 30*C. How much KCl crystallizes from the solution?

algebra
Need help with answering the quotient and the remainder, (6x^2+35x24)/(x+5)

Math
Adnan bought at the rate of 40 per dozen and sold at the rate of 4 per egg find percentage of profit if 3 eggs were rotten

chemistry
Which is most reactive among the following(a) HCHO (b) CH3CHO (C) CH3COCH3 (D) All are equal

Buffer solution
what is the ph of 50ml buffer solution which is 2M in CH3COOH and 2M in CH3CooNa? 1 Initial PH before the addition of acids and base? 2 What is the new PH after 2ml of 6.00M HCl is added to this buffer? 3 what is the new PH after 2.00ml of 6.00M NaoH is added to the original ...

math
a. A rectangular pen is built with one side against a barn. 1200 m of fencing are used for the other three sides of the pen. What dimensions maximize the area of the​ pen? b. A rancher plans to make four identical and adjacent rectangular pens against aâ...

calculus
e = distance east s = distance south h = hypotenuse, what we want at start e = 4 s = 4 de/dt = -9 ds/dt = +10 h = 4 sqrt 2 h^2 = e^2 + s^2 2 h dh/dt = 2 e de/dt + 2 s ds/dt 4 sqrt 2 (dh/dt) = 4 (-9) + 4 (+10) sqrt 2 (dh/dt) = +1 dh/dt = 1/sqrt 2 = +.707 miles/hour obviously 10...

math
if 1/cos a = cos a + sin a 1 = oos^2 a + sin a oos a cos^2 a = 1 - sin a cos a Needed for last step if sin (pi/2 -a ) = cos a cos (pi/2- a) = sin a so tan(pi/2 - a) = cos a/sin a so [tan(pi/2 - a) ]^2 = cos^2 a/sin^2 a cos 2a = cos^2 a - sin^2 a identity so prove cos^2a/sin^2a...

math
what is 7/8 of 64?

Algebra math
It a number is subtracted from twice its reciprocal the result is -23/5 what is the number

math
3150

Math-college
for n repeated independent trials, with a constant probability of success p for all trials, find the probability of exactly x success in each of them a) n=5, p=1/3, x=4 b) n=30, p=0.6, x=22

Science
How many moles of oxygen are given by the complete decomposition of 1.225gram of potassium chloride

college subject=chemistry
what is the ph of 50ml buffer solution which is 2M in CH3COOH and 2M in CH3CooNa? 1 Initial PH before the addition of acids and base? 2 What is the new PH after 2ml of 6.00M HCl is added to this buffer? 3 what is the new PH after 2.00ml of 6.00M NaoH is added to the original ...

Math
Many solved 25 questions of his math assignment.This was 1/8 of total questions. He does not know 1/5 of the rest. How many questions were there in all? How many did he not know?

Algebra
I'm not that good at math Steve. Would you describe for me in a simpler way? Thank you, Kim

Algebra
Suppose that b is proportional to c, and inversely proportional to the square of d. If b = 45 when c = 40 and d = 2, find b when c =20 and d = 3.

science
give 10 example of suspencion

math
A baseball is thrown into the air with an upward velocity of 25 ft./s. It's height in feet after T seconds can be modeled by the function h(t)=-16t^2 +25t+5. how long will it take the ball to reach it's maximum height? What is the balls maximum height?

Physics
A golf ball of mass 50.0 grams is at rest on a tee. It is struck by a golf club with an average force of 850 Newtons. The ball accelerates to a speed of 68.0 m/sec. How long was the club in contact with the ball?

Physics
A 900 W toaster operates for 2.50 minutes. How much energy does it use?

chemistry
You have made a buffer solution where you added 9 mL 1M Acetic Acid and 0.82 grams Sodium Acetate and diluted it with deionized water to 100 mL. If the Ka for Acetic Acid is 1.76*10-5 and the molecular weight of Sodium Acetate is 82.03 g/mole, what is the pH of the buffer you ...

life orientation
Yes

science chemistry
One word of the chemical used to dissolve gold in the leach tanks with the aid of oxygen

science chemistry
One word for the chemical used to dissolve gold in the leach tanks with the aid of oxygen

Math
I am thingking of a number thrice my number minus 6 equals 66 what is my number?

physics
horizontal and vertical component of earth's magnetic field at a place are 0.22 tesla and 0.38 tesla respectively then find the resultant intensity of magnetic field

math
Idk

Teaching
Can you help me with the multiple choice please?

Teaching
I didn't know if all of them were correct. Sorry

Teaching
1) T/F. Although there are many benefits in parents and teachers working together, research shows no change in children's learning when parents are involved. False 2) T/F. An appropriate approach to the initial conference at the beginning of the school year would be a ...

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