Friday

August 26, 2016
Total # Posts: 98,870

**Physics**

time is distance/speed=900/30=30m/s
*July 18, 2016*

**MATH 70**

3 is less than or equal to y , and y is less than or equal to 4
*July 18, 2016*

**Health**

What does Vitality tell us?
*July 17, 2016*

**Data Analysis with spreadsheets with Lab**

You have a list of contracts and due dates for annual maintenance fees. You wish to determine when you have a contract due in the next 45 days and provide a note that warns you that the payment is due. Using the IF function.
*July 17, 2016*

**pre cal**

Describe the effect that the transformations y=8f(8x) have on the graph of y=f(x).
*July 17, 2016*

**pre cal **

If the point (40,3) is on the graph of y=f(x), what point must be on the graph of y=8f(8x)? The point (?,?) must be on the new graph.
*July 17, 2016*

**trigonometry**

if tan theta= 1/2, find the exact values of the five remaining trigonometric functions for theta, which is acute
*July 17, 2016*

**chemistry**

rust
*July 17, 2016*

**chemistry**

rust
*July 17, 2016*

**physics c**

Suppose q1 = +2.90 µC is no longer at y = 0.300 m, but is now at y = 0.244 m. The charge q2 = +2.90 µC is at x = 0 and y = 0.500 m, and the point 3 is at x = y = 0.500 m.
*July 17, 2016*

**math**

In order for Mateo to walk 1000 meters in his rectangular backyard, he must walk the length 25 times or the perimeter 10 meters. What is the are of his backyard in square meters? Thanks!
*July 17, 2016*

**math**

A circle and two separate lines are sketched on a sheet of paper. What is the largest possible number of points of intersection of these 3 figures?
*July 17, 2016*

**pre cal**

totally lost
*July 17, 2016*

**pre cal**

left 3, up 9... but the g(x) function is wrong or i might have a glitch in my online assignment
*July 17, 2016*

**pre cal**

The function f(x)=x2+6x+18 can be obtained from an even function g by shifting its graph horizontally and vertically. That even function is g(x)= ?
*July 17, 2016*

**Economics**

1. Johnny washes Mrs. Smith s car. She offers to pay Johnny with cookies but Johnny prefers cash. A. Measure of Value B. Medium of Exchange c. Store of Value 2. Johnny puts the money he earns from washing cars under his mattress. He will spend it later. A. Measure of Value B. ...
*July 17, 2016*

**MAth**

In one area of the Bay of Fundy, the tides cause the water level to rise to 7.2 m above average sea level and to drop to 7.2 m below average sea level. The time between the peak and the trough is approximately 6 hours. Determine the equation of a sinusoidal function that would...
*July 17, 2016*

**chemistry**

a 51.6 litre sample of a pure allotrope of oxygen has a mass of 100.0 grams. (25 degrees celsius and 100 kPa) Show, by calculation, which allotrope of oxygen is present.
*July 17, 2016*

**Math**

john wrote a three digit number on a piece of paper it is between 600 and 700 write down a number which john could possibly written
*July 17, 2016*

**pre calculus**

C=2 x^=8y
*July 17, 2016*

**sience**

1st reason: the radius of arterioles is smaller compared to radius of arteries so since arteries supply blood to the arterioles,arterioles offer resistance to the blood flow thus the pressure of blood in the arterioles decreases which is the reason why pressure of the blood in...
*July 17, 2016*

**algebra**

The side of a regular hexagon is denoted by ‘a’. Express the perimeter of hexagon using ‘a’.
*July 17, 2016*

**maths**

If two non parallel lines are perpendicular to other two non parallel lines prove that acute angel between first two non parallel lines is equal to acute angle between other two non parallel lines
*July 17, 2016*

**Chemistry**

Write a balanced equation for the complete oxidation reaction that occurs when ethanol (C2H5OH) burns in air.
*July 17, 2016*

**math**

what is the greatest common factor of the terms of 90x^6y^6+18x^4y^4+27x^2y^2
*July 17, 2016*

**Calculus**

A spherical balloon is being inflated.Let r(t)=3t can represents its radius at time t seconds and let g(r)=4/3 pie r be the volume of the same balloon if its radius is r.Write (g.r) in terms of t and describe what it represents.
*July 16, 2016*

**math**

your report card comes out on the day the 8millionth second passes in the new (non-leap) year. what day is that?
*July 16, 2016*

**maths**

no they are not related
*July 16, 2016*

**math**

for x = 0 x = [ 11 +/- sqrt(121 -12) ]/ 2 x = 5.5 +/- .5 sqrt(109) this is a parabola positive for x ---> + or - infinity so negative only between those roots center at x = 5.5 answers between 5.5 - .5 sqrt 109 and 5.5 + .5 sqrt 109
*July 16, 2016*

**math**

hotdog 9.5 and juice 5.5
*July 16, 2016*

**algebra**

Find the sum of the terms of geometric sequence where the first term is 4, the last term is 324 and the common ratio is 3.
*July 16, 2016*

**Physics**

initial speed = s initial ke =.5 m s^2 = E u = s cos 60 forever at top v=0 so ke = .5 m u^2 = .5 m s^2 cos^2 60 which is E cos^2 60 = E/4
*July 16, 2016*

**Healthcare**

What are some concerns in informatics? privacy and confidentiality protection of human subjects from potential misuse a and b there are no potential threats to anyone A?
*July 16, 2016*

**Physics**

Aaz=Emanuel? v = Vi - g t h = .5 g t^2 at 4.2 meters, t=time at 4.2m 4.2 = .5 g t^2 t = sqrt (8.4/g) v = Vi - sqrt (8.4 g) = 0.6 Vi so 0.4 Vi = sqrt(8.4 g) Vi = sqrt(8.4 g) / 0.4 use 9.81 or whatever you use for g and you have the initial speed up 0 = Vi - g t finds t at top ...
*July 16, 2016*

**HealthCare**

Sexually transmitted diseases are not considered as indicators of limitations of health communication. True False Help?
*July 16, 2016*

**Chemistry**

A small section of a polymer chain, containing 10 repeating units, has a relative molecular mass of 625. Which of the following monomers could have polymerised to form this chain? ethylene viyl chloride styrene glucose
*July 16, 2016*

**Calculus1**

The radius of a sector of a circle is increasing at a rate of 3 cm/sec while the area is decreasing at a rate of 1 cm2/sec. At what rate is the angle of the sector changing when the area is 20 cm2 and the radius os 5cm?
*July 15, 2016*

**Data Analysis with spreadsheets with Lab**

Using the IF function. You have a list of contracts and due dates for annual maintenance fees. You wish to determine when you have a contract due in the next 45 days and provide a note that warns you that the payment is due".
*July 15, 2016*

**Data Analysis with spreadsheets with Lab**

You wish to calculate the total pay for an employee who receives regular time for 40 hours, time and a half for 40-50 hours, and double time for over 50. Using the IF function. Please help
*July 15, 2016*

**Physics**

Determine the magnitude of current I3. Let the voltage of the bottom battery VB =13.0 volts and r= 1.0 Ω.
*July 15, 2016*

**Math**

2 x-1!=0, y = x/(2 x-1) != means doesn't equal.
*July 15, 2016*

**Health**

examples of situations displaing positive stress.
*July 15, 2016*

**science**

ALSO... Is the 36,000 km the radius of the orbit or is it the height of the satellite from Earth's surface? If it's the radius of the orbit, then ... R = orbital radius = 36,000 km = 36,000,000 m Since the orbit is specified as being circular, then ... C = ...
*July 15, 2016*

**science**

Since it's a satellite in the question is it moving in a circular motion?
*July 15, 2016*

**science**

a satellite is moving in 36000km if it takes 24 hour what will be the speed?
*July 15, 2016*

**science**

what is the equation for velocity?
*July 15, 2016*

**science**

which physical quantity is given under the area of velocity time graph?
*July 15, 2016*

**Physics**

1. Volume flow rate of the blood being circulated 2. How the ear drum vibrates when sound waves interact with it
*July 15, 2016*

**physics**

A rope of mass M and length L is being rotated about one end in a gravity free space. A pulse is being created at one of the ends. The angle through which rope will be rotated in the time when pulse reaches the opposite end of rope for first time and for the angular velocity ...
*July 15, 2016*

**Math**

There are 7girls in front of amarda and 3girls after her
*July 15, 2016*

**Math**

There are 7girls in front of amarda and 3girls after her
*July 15, 2016*

**English**

Q1) No. 1-1 should read: Het took two pictures of the mountain. The rest are grammatically correct Q2) yes Q3) yes
*July 14, 2016*

**Data Analysis with spreadsheets with Lab**

Using the IF function calculate the commission on sales. The commission is 6% on all sales that are at least 20% above cost.
*July 14, 2016*

**Math**

A taco stand sells tacos with any three ingredients for a flat price of $1.25. Additional ingredients cost $0.50 each. There are ten different possible ingredients. How many different types of tacos costing $2.25 can be made at the stand? A. 160 B. 252 C. 345 D. 452 E. 610
*July 14, 2016*

**Math**

A taco stand sells tacos with any three ingredients for a flat price of $1.25. Additional ingredients cost $0.50 each. There are ten different possible ingredients. How many different types of tacos costing $2.25 can be made at the stand? A. 160 B. 252 C. 345 D. 452 E. 610
*July 14, 2016*

**MATH**

correct it is false.
*July 14, 2016*

**Math**

A record playa with a speed of 33 1/3 revolutions per minute, meaning that a needle in a groove around te edge of the record will make 33 and 1/3 circuits around the record in one minute. If the diameter of the record is 40 centimeters, how many centimeters does the needle ...
*July 14, 2016*

**MATH**

if log_a 3 = log_b 27 then show that b=a^3 log_a mean log base a.
*July 14, 2016*

**Math**

A record playa with a speed of 33 1/3 revolutions per minute, meaning that a needle in a groove around te edge of the record will make 33 and 1/3 circuits around the record in one minute. If the diameter of the record is 40 centimeters, how many centimeters does the needle ...
*July 14, 2016*

**Math(help please)**

Alexis has a pencil bag containing one of more of each of the following: red pens, blue pens, mechanical pencils, and black markers. He knows that there is a 4% chance he will pull a red pen out of the bag if he chooses randomly. What is the number of total pens, pencils, and ...
*July 14, 2016*

**Health**

What do obesity trends presented by surveillance systems help with? present trends in colorful, creative maps change behavior about the obesity problem in the U.S. they do not tell us much raise awareness about the obesity problem in the U.S. C?
*July 14, 2016*

**MATH**

What f-1(x) of f(x)=(1/3)^x
*July 14, 2016*

**health communication**

For your communication intervention, you are trying to get young mothers in a developing country to use more nutritious complementary food for their infants. You find that their mothers-in-law make most of the decisions, so you try to convince them first that this a good idea ...
*July 14, 2016*

**Math**

If I travel 200 feet in 2.92 seconds what is speed I'm traveling at
*July 14, 2016*

**homework**

The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 3.9% per hour. How many hours does it take for the size of the sample to double?
*July 14, 2016*

**algebra**

A ball is launched from a slingshot. Its height, h(x), can be represented by a quadratic function in terms of time, x, in seconds. After 1 second, the ball is 148 feet in the air, after 2 seconds the ball is 272 feet in the air. Find the height in feet of the ball after 6 ...
*July 14, 2016*

**Math (PLEASE HELP!)**

A ferris wheel has a radius of 13 m. It rotates once every 24 seconds. A passenger gets on at the bottom of the wheel from a ramp which is one metre above ground level. a) If the height of the passenger is measured from the ground, determine an equation for the height of the ...
*July 13, 2016*

**Math (PLEASE HELP!)**

Thank you so much.
*July 13, 2016*

**Math (PLEASE HELP!)**

How do you solve sin2θ−cosθ=0 between -pi/2 less than or equal to θ less than or equal to 3pi/2?
*July 13, 2016*

**statistics**

If 6 bass are randomly selected from Clear Lake, find the probability that the mean weight is greater than the mean of those you caught
*July 13, 2016*

**Math (PLEASE HELP!)**

A ferris wheel has a radius of 13 m. It rotates once every 24 seconds. A passenger gets on at the bottom of the wheel from a ramp which is one metre above ground level. a) If the height of the passenger is measured from the ground, determine an equation for the height of the ...
*July 13, 2016*

**chemistry**

How much heat is produced by the complete combustion of 287 g of CH4? CH4(g)+2O2(g)→CO2(g)+2H2O(g)ΔH∘rxn=−802.3kJ
*July 13, 2016*

**maths114**

A chord xy of a circle of radiuns 14cm subtends angle of 60 degree at the centre. find the area of major segment.
*July 13, 2016*

**maths 114**

find area of major segment
*July 13, 2016*

**math**

Write 3.027 in expanded form
*July 13, 2016*

**English composition**

That's a classification and division prewriting it's not an essay
*July 13, 2016*

**Algebra**

How do u work out how much fence is needed for area of 100m2
*July 13, 2016*

**tle**

the surface temperature of ranges from 173 degrees celsius to 410 degrees celsius find its equivalent temperature in the fahrenheit scale.
*July 13, 2016*

**Math**

2x+9square root of x-5=0
*July 12, 2016*

**bus math**

complete a vertical analysis on the balance sheet for jake's janitorial service for december 31 of last year...
*July 12, 2016*

**pre cal**

Solve the following inequality. Write the answer in interval notation. x^4>4x^2
*July 12, 2016*

**pre cal**

thx could not find it
*July 12, 2016*

**pre cal**

Suppose the speed of sound is c, and gravity is g. If you throw a rock from an initial height h0 and with an initial velocity v0 the height h(t) of the rock after time t is h(t)=−g2t^2+v0t+h0. (The height is negative when the rock is below ground level. Thus you can ...
*July 12, 2016*

**math**

Emmanuel wants to tile his rectangular floor. one of which is larger than the other. a)what area will be covered by the "8x8"tile? "16x16" tile?
*July 12, 2016*

**science**

how to remove blue color from ammonium sulfate solution which occurs dues copper content in the spent acid we generate
*July 12, 2016*

**pre cal**

NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t)=−4.9t^2+115t+220. Assuming that the rocket will splash down into the ocean, at what time does splashdown occur? The rocket splashes down after ? seconds. ...
*July 12, 2016*

**agebra**

The graph represents the normal distribution of recorded weights, in pounds, of cats at a veterinary clinic. Which weights are within 2 standard deviations of the mean? Check all that apply.
*July 12, 2016*

**pre cal**

i still don't get it :(
*July 11, 2016*

**Psychology**

Psychics and astrologers are characterized as...
*July 11, 2016*

**Math**

The temperature deceased due to increase in altitude at the rate of 8 degrees Celsius per 1500 m the temperature at 4500 m above the ground level is 4 degrees Celsius find the temperature at ground level and at an altitude of 9000 m
*July 11, 2016*

**statistics**

If P(A)=11/13, find P(Ā) Find the indicated probability
*July 11, 2016*

**chemistry**

QUESTION 11 Ammonia gas is formed from nitrogen gas and hydrogen gas, according to the following equation: N2 (g) + 3H2 (g) Imported Asset 2NH3 (g). If 84.0 g of nitrogen gas is allowed to react with an excess of hydrogen gas to produce 85.0 g of ammonia, what is the percent ...
*July 11, 2016*

**chemistry**

QUESTION 10 Ammonia gas is formed from nitrogen gas and hydrogen gas according to the following equation: N2 (g) + 3H2 (g) Imported Asset 2NH3 (g). If 112 grams of nitrogen gas is allowed to react with an excess of hydrogen gas to produce 120 grams of ammonia, what is the ...
*July 11, 2016*

**chemistry**

QUESTION 9 The number of moles of the reagent in excess can be used to calculate the moles of the products of the reaction. TRUE FALSE
*July 11, 2016*

**chemistry **

When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) Imported Asset MgCl2 (aq) + H2 (g), if 72.9 g of Mg and 146.0 g of HCl are allowed to ...
*July 11, 2016*

**chemistry **

When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) Imported Asset MgCl2 (aq) + H2 (g), if 72.9 g of Mg and 146.0 g of HCl are allowed to ...
*July 11, 2016*

**math**

what number whose sum of its digit is 26 becomes 6000 when rounded to the nearest thousand.
*July 11, 2016*

**geometry**

Find the measure of one exterior angle of a regular polygon that has 21 sides. Round your answer to one decimal place. m∠exterior angle
*July 11, 2016*

**science**

what are some examples of suspension?
*July 11, 2016*