Thursday

July 28, 2016
Total # Posts: 1,057

**physics**

a person uses a slingshot to launch a rock upward with a velocity of 30m/s how long does it take to reach a height of 20m what maximum height does the rock reach, what is the velocity of the rock at this height, what is the velocity of the rock just before it lands
*July 26, 2016*

**physics**

a driver starting from rest accelerates at a rate of 1.5m/s^2 for 20s until reaching a certain speed she then continues driving at this constant speed for an additional 20s what maximum speed does the driver attain what total distance does the driver cover during the 40s that ...
*July 26, 2016*

**Algebra 2**

(a+3)^2/a-3/5/(a^2-9)= Pls help have no idea where to start
*July 17, 2016*

**math**

Kyle opened a bank account with $450. He deposits $58.50 each week. Write a function that shows the amount he has after w weeks. What is the function.
*July 11, 2016*

**math**

if a tax meter registers 20 pesos plus 5 pesos per kilometer covered. express the amount T registered in the taxi meter as a function of the number of kilometers covered
*July 11, 2016*

**Social studies**

How about, tell me if there wrong 2. d 3. c
*May 23, 2016*

**Social studies**

But I need someone to check the other ones now!!
*May 23, 2016*

**Social studies **

Mexico's economy is based largely on? a.) oil exports b.) mining c.) agriculture and live stock •• d.) industry ___________________________________ 2. Many indigenous people in Guatemala live in the mountains because? a.) it is the only land available to them &#...
*May 23, 2016*

**Language Arts**

Sal likes Chickens. The Chicken's name is Blackberry. Blackberry's remind Sal of her mother. Her mother likes Chickens. Simple.
*May 18, 2016*

**Math**

33. A bag of marbles contains 5 red, 3 blue, 2 green, and 2 yellow marbles. What is the probability that you choose a red marble and then a green marble assuming you replace the first marble? A) 1/24 B) 5/72 C) 5/66 D) 5/6
*May 16, 2016*

**Physics**

On the Round Up at the amusement park, people stand in a cylindical "room" of radius 6.18 m and the room rotates until it reaches a rotational frequency of 0.89 revolutions per second. At this point, the floor drops out. What is the minimum coefficient of static ...
*May 10, 2016*

**science**

the African plate is moving toward the Eurasian plate at a rate of a few centimeters per year. how will this area change in 100 million years? in your answer, consider how continents will change and how the Mediterranean sea will change.
*May 5, 2016*

**science**

a geologist working in a national park finds a mineral. He is caring a kit that contains a Penney, a hand lens, a geologist hammer, and a jackknife. describe how the geologist can use these items determine some of the minerals chartist
*May 5, 2016*

**science**

tom is marking the locations of active volcanos on a world map. explain how the locations of the volcanoes are related to earths plates
*May 5, 2016*

**geometry **

in an isosceles trapezoid, ABCD, AD congruent BC. diagonal AC bisects angle DAB. if the measure of angle CAB = 15, find: the measure of angle b, measure of angle BCA, measure of ACD, and the measure of angle D
*May 3, 2016*

**science **

Tom is markina locations of active volcanoes on a world map explain how the locations of the volcanoes are related to Earth's plates
*May 3, 2016*

**Algebra**

A field is six times as long as it is wide. If the perimeter is 420 FT, find the dimensions of the feild.
*April 27, 2016*

**Trigonometry Help please**

Write each expression in the standard form for a complex number, a + bi. A. [3(cos(27°)) + isin(27°)]^5 B. [2(cos(40°)) + isin(40°)]^6 For A i got 2.67+1.36i and for B i got 1.53+1.29i
*April 18, 2016*

**Trigonometry**

Write each expression in the standard form for a complex number, a + bi. A. [3(cos(27°)) + isin(27°)]^5 B. [2(cos(40°)) + isin(40°)]^6 For A i got 2.67+1.36i and for B i got 1.53+1.29i
*April 18, 2016*

**Math help please**

Prove this identity using the product-to-sum identity for sine: sin^2 x=1-cos(2x)/2
*April 5, 2016*

**Math**

Keep adding 3/4 to 3/4 until you reach 7 1/2. Then count how many times you added and that will be your answer.
*March 30, 2016*

**Math**

Thanks.
*March 30, 2016*

**Math**

I did 2/3 x 8/1 and got 16/3. I then simplified it into 5 1/3, is that correct?
*March 30, 2016*

**Math**

I just need help how to solve it.
*March 30, 2016*

**Math**

What is two thirds of eight?
*March 30, 2016*

**calculus**

Find the solution of the differential equation that satisfies the given initial condition. dp/dt=2 sqrt(pt), P(1)=5 my answer: P=(2/3t^(3/2)+(15sqrt(5)-10)/15)^2 how is it wrong?
*March 20, 2016*

**Geometry**

How would I find the ratio of the lengths of corresponding sides in two similar triangles?
*March 12, 2016*

**Physics **

A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4.8 m down a θ = 36° incline. The sphere has a mass M = 3.2 kg and a radius R = 0.28 m. If there is no frictional force, what is the translational kinetic energy of the ...
*March 12, 2016*

**life orientation**

Propose 6 practical actions that you can take to address human rights violations of xenophobia in your community
*March 11, 2016*

**English**

Analogies: Circle the analogy that best matches the word below. Photon : Light a.) small : invisible b.) molecule : visible c.) home : kitchen d.) page : book I'm thinking c maybe? None of them really make sense to me.
*March 8, 2016*

**Math**

If an amount of x dollars is invested at 3% interest compounded continuously, and at the end of 6 years the value of the investment is $4000, find x. x=___
*February 29, 2016*

**Math**

Which set of numbers best describes the displayed weight on a digital scale that showe each weight to the nearest half pound?
*February 23, 2016*

**Math**

Suppose h(x)= sqrt(f(x)) and the equation of the tangent line to f(x) at x=1 is y=4+5(x−1). Find h′(1).
*February 22, 2016*

**science**

why did a portion of the table top get cold when Natasha placed her cold drink on the table
*February 18, 2016*

**science**

a I think
*February 18, 2016*

**science**

not relly
*February 18, 2016*

**science**

they are a heterogeneous mixer vaporization a chemical change an amorphous solid
*February 18, 2016*

**science**

a banana turning brown when exposed to the air is an example of what
*February 18, 2016*

**science**

an ice cube, a glass of cold water, and a swimming pool are each exposed to the same amount of sunlight on a hot day. after five minutes, the ice cube is melted and the cold drink is two degrees warmer, but the temperature of the swimming pool remains unchanged. what is the ...
*February 18, 2016*

**science**

a blank property of matter describes an ability to change into different substances
*February 18, 2016*

**science**

a bananan turning brown when exposed to the air is an example of
*February 18, 2016*

**science**

how can a swimming pool be unchangd
*February 18, 2016*

**science**

an ice cube a glass of cold water in a
*February 18, 2016*

**science**

a 54-gram sample of an unknown material has a volume equal to 20cm3 what is the identity of the substance
*February 18, 2016*

**Math**

Thank you very much! I was stuck and needed this.
*February 3, 2016*

**Math**

Consider the function f(x)=7x^(2)+9. Its tangent line at x=5 goes through the points (1,y1) and (−7,y2) where y1= ___ , and y2= ___
*February 3, 2016*

**Precal**

Use row reduction to solve this x+4y=-22 -2X-2y=14
*February 1, 2016*

**Math**

A drawing has a scale of 1cm=2ft.If the object drawn has a length that measures 8.5cm, what is the objects actual length. The answer I have is 17ft. Is this correct?
*January 29, 2016*

**Math**

Nevermind, I figured it out! I got 209/16 and it's correct.
*January 28, 2016*

**Math**

If h(t) represents the height of an object in feet above ground level at time t and h(t) is given by h(t)=−16t^(2)+14t+10 find the height of the object at the time when the speed is zero. The height of the object is h(t)= ___ feet.
*January 28, 2016*

**Science**

100% got them all right
*January 21, 2016*

**Math**

What I meant was I am converting gallons to pints. Is this correct 80 gallons= 640 pints
*January 17, 2016*

**Math**

I am stuck on this problem: Would 80 gallons > 350 pints? because i know i gallon=8 pints
*January 17, 2016*

**Math**

Sorry Damon. Is this right now: .62 < .622 < .625 < .626? Is it right now
*January 17, 2016*

**Math**

So would this be it: .62 < .622 < .6262 < .625
*January 17, 2016*

**Math**

For this problem I have to order these numbers from least to greatest. Would this be correct: .62< .622 < .6262 < 5/8
*January 17, 2016*

**math help..STEVE**

what are the answer
*January 11, 2016*

**language**

i put dez nuts and got a 0
*January 11, 2016*

**Math**

So how would I put the numbers in order now?
*January 10, 2016*

**Math**

Sure. I believe the answer is .309, .363, .333, and .33. Am I right?
*January 10, 2016*

**Math**

Thanks Ms. Sue. Would the decimals be .3 repeating and .36363
*January 10, 2016*

**Math**

I am having trouble putting these numbers from greatest to least. Here are the numbers: .33, 1/3, 4/11, .309
*January 10, 2016*

**math**

For what values of a and b is the line 4x + y = b tangent to the parabola y = ax2 when x = 5?
*January 9, 2016*

**calculus**

Find a cubic function y = ax3 + bx2 + cx + d whose graph has horizontal tangents at the points
*January 9, 2016*

**math**

Draw a diagram to show that there are two tangent lines to the parabola y = x2 that pass through the point (0, −25). Find the coordinates of the points where these tangent lines intersect the parabola.
*January 9, 2016*

**Math**

Suppose that y varies directly as the square root of X and that y=39 when X = 169 what is y when X =80? Round your answer to 2 decimal places.
*January 4, 2016*

**Ath**

A cup holds 1 5/8 gallons of water. How many quarts does it hold ?
*December 12, 2015*

**Chemistry (Help)**

I'm having trouble figuring out this one. Can you please help? I haven't gotten a response to any of my questions. Chemical formula: Na Name: Sodium Bond Type (intramolecular FOA): metallic bond VSEPR molecular shape: none Central Atom Hybridization: none? Molecular ...
*December 9, 2015*

**Chemistry (Check)**

Are these right? Chemical formula: NaCl Name: Sodium chloride Bond Type (intramolecular FOA): ionic bonding VSEPR molecular shape: none Central Atom Hybridization: sp3 Molecular Polarity: polar Interparticle force of attraction (IPFOA): London, dipole-dipole, ion-dipole State ...
*December 9, 2015*

**Chemistry Help**

Which of the following exhibits the highest boiling point? HF, HCl, HBr, or HI Which of the following exhibits the highest boiling point? CH3CH3, CH3COOH, or CH3OCH3 How can you determine the highest boiling point of these?
*December 8, 2015*

**Chemistry**

Which of the following exhibits the highest boiling point? Ne, Ar, Kr, or Xe My answer: Xe Which of the following exhibits the highest boiling point? F2, Cl2, Br2, or I2 My answer: HI Which of the following exhibits the highest boiling point? NaCl, SO2, or N2 My answer: SO2 ...
*December 8, 2015*

**Chemistry**

An aqueous antifreeze solution is 40.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.05 g/cm3. Calculate the molality, molarity, and mole fraction of the ethylene glycol. molality I actually can do this whole problem EXCEPT for one part I'm stuck on. ...
*November 30, 2015*

**physics**

A car of mass 800kg is climbing an incline at 10 degrees to the horizontal. Determine the increase in potential energy of the car mass s it moves a distance of 50m up the incline
*November 26, 2015*

**Math **

The table below represents the velocity of a car as a function of time: Time (hour) x Velocity (miles/hours) y 0 50 1 52 2 54 3 56 Part A: What is the y-intercept of the function, and what does this tell you about the car? (4 points) Part B: Calculate the average rate of ...
*November 25, 2015*

**Physics**

A small sphere has a hole drilled in it and it is placed onto a wire. The wire is bent into a circle of radius 15 centimeters. The sphere can slide freely without friction around the circular wire. The circular wire is held vertically. (a) If the circular loop of wire is spun ...
*November 24, 2015*

**Math**

The question is: The area of a rectangle is given by the expression 8x+44y. Length is 2x+11y. What is width? I answered 4x & 4y, yet that was wrong. Can you help explain why? Thanks
*November 20, 2015*

**4th grade math**

Mary purchased incredients needed to cookies. a table shows the cost for each batch of 5 dozen cookies. ($10.00 total) and the price of cookies = 1/2 dozen = $5; 1 dozen = $8 and 5 dozen = $35. question is if mary sells 3 dozen cookies. what is her profit??
*November 18, 2015*

**Chemistry 102**

The average human body contains 6.00 L of blood with a Fe2+ concentration of 2.00×10−5 M . If a person ingests 6.00 mL of 16.0 mM NaCN, what percentage of iron(II) in the blood would be sequestered by the cyanide ion?
*November 15, 2015*

**Physics**

A plane landing on a small tropical island has just 80 m of runway on which to stop. If its initial speed is 65 m/s, what is the maximum acceleration of the plane during landing, assuming it to be constant? Answer in units of m/s 2
*November 11, 2015*

**georgia state history**

Which of the following was an advantage of the south at the beginning of the civil war A. The south had agriculture products to provide food for the army B. The south had many factories that created superior machinery C. The south had a more advanced fleet of ships than the ...
*November 3, 2015*

**Math**

Thanks Ms. Sue you are the greatest.
*November 2, 2015*

**Math**

Please check my answer. 11 1/9% of what number is 600? I have 5400.54
*November 2, 2015*

**English and Vocabulary**

My Vocab Words: 1. Degenerate 2. Implausible 3. incoherent 4. intercede 5. intricate 6. sanctuary 7. scrutiny 8. sinister 9. suffice 10. vulnerable need help 1-2 Birds feel ___ to attack when they are out in the open where shrubbery is sparse. To attract them to your bird ...
*October 28, 2015*

**Math Word Problem**

Ms. Sue I am still getting -3.88. Are you subtracting?
*October 25, 2015*

**Physics**

A pitched ball is hit by a batter at a 40° angle and just clears the outfield fence, 106 m away. If the fence is at the same height as the pitch, find the velocity of the ball when it left the bat. (Ignore air resistance)
*October 18, 2015*

**Physics**

Oh wait I think I figured it out from a video. Total force is equal to mass time centripetal acceleration Total-F(c) = m*a(c) Where Total-F(c) = m* v^2/r T - mg = m * v^2/r where v^2 = 2gh and h = l and r = l so you get T-mg = m * (2*g*l)/l from that you get T-mg = 2mg then ...
*October 11, 2015*

**Physics**

A simple pendulum has a bob of mass M. The bob is on a light string of length l. The string is fixed at C. At position A, the string if horizontal and the bob is at rest. The bob is released from A and swings to B, where the string is vertical. The tension in the string when ...
*October 11, 2015*

**Math**

So the answer is just 36?
*October 9, 2015*

**Physics **

A 0.050 kg cart has a spherical dome that is charged to +1.0 x 10–5 C. The cart is at the top of a 2.0-m long inclined plane that makes a 30° angle with the horizontal. The cart and the plane are placed in an upward pointing vertical uniform 4000N/C E-field. How long ...
*September 30, 2015*

**Phy**

In the figure, a block of mass m = 3.09 kg is pulled along a horizontal frictionless floor by a cord that exerts a force of magnitude F = 13.7 N at an angle θ = 23.0°. (a) What is the magnitude of the block's acceleration? (b) The force magnitude F is slowly ...
*September 26, 2015*

**Math**

I need help with this math problem. From the reciprocal of 1/9 take 3 2/5.
*September 25, 2015*

**math**

Describe two ways you could evaluate 37% of the sum of 27 3/5 and 15.9. Tell which method you would use and why? THANK YOU!
*September 24, 2015*

**civics**

A big city newspaper prints a story containing untrue statements about the city's mayor that describe him as having stolen a lage amount of money from the public. The story is completely untrue and was invented by the writer of the story. --Why is it necessary to limit ...
*September 21, 2015*

**Physics**

vector r and s lie on an xy plane. magnitudes of 4.5 and 7.25, respecectively directions are 320 degrees and 685 degrees. What is vector r cross product of vector s?
*September 16, 2015*

**Fraction**

4friemds ate 3 large pizzas. Shawn ate 3/4, will ate 1/4 and Mattate 3/4. How much pizza is left
*September 16, 2015*

**Tourism,business studies,maths literacy**

A tour guide
*September 16, 2015*

**Pre Algebra**

I have a rectangle that represents one whole. There are three sections that equal 1/3 each. I want to subdivide those sections into even & uneven squares. EX: 1/3 divided by 2 = 1/6 I am having trouble identifying the uneven squares. Could you please show me a few examples ...
*September 11, 2015*

**reading **

what is the sequence of components in the following sentence listless and depressed by vistas of snow and grey sky's, Dieter left the cabin and walked toward the frozen pond . (A).subject modifier verb (B).modifier subject modifier verb (C)modifier subject verb (D)subject ...
*September 10, 2015*

**English**

Identify the verbs and verb phrases in the following sentences. Then, classify each verb or verb phrase as transitive action, intransitive action, or intransitive linking. Give the object(s) of each transitive action verb and the subject complement(s) of each linking verb. 2. ...
*August 24, 2015*