Tuesday

July 29, 2014

July 29, 2014

Total # Posts: 125

**fractions**

usually takes tom 3/4 of an hour to drive to work. one day, due to flooding of the road, it took him 1 1/2 hours longer. how long did the journey take him?

**math**

Having a hard time with equal and groups.. 13 into 6 groups and what is left over..

**Electrical Engineering**

answer please

**algebra**

A man tosses a penny up into the air above a 100 ft well with a velocity of 5 ft/sec. The penny leaves his hand at a height of 4 ft. How long will it take for the penny to reach the bottom of the well?

**TRIPLE JUNCTION SOLAR CELL - I**

please give answer to this question urgetnlyyyyyyyyyyyyyyyy

**Physics**

Example 1: (Rock A) is thrown against a larger stationary rock(Rock B). considering the following possibilities... 1. Rock A bounces off of Rock B 2. Rock A splits into two pieces off of Rock B 3. Rock A explodes into many pieces off of Rock B What factors are affecting the di...

**Math**

Use a power of ten to estimate the product 52.6 x 9

**Math**

Find the area shared by the cardioids r=6(1+cos(theta)) and r=6(1-cos(theta))

**Math**

Find the area inside the lemniscate r^2=150cos(2theta) and outside the circle r=5sqrt(3). Please I really need help.

**Calculus**

By recognizing each series below as a Taylor series evaluated at a particular value of x, find the sum of each convergent series. A) 1+5 + (5^2)/(2!)+(5^3)/(3!)+(5^4)/(4!)+...+ (5^k)/(k!)+...= B) 1-(2^2)/(2!)+(2^4)/(4!)-(2^6)/(6!)+...+((-1)^(k)2^(2k))/((2k)!) +...=

**Geometery**

I figured it out. Thanks.

**Geometery**

Is the long side one of the parallel sides ? YES Where did the 5 come from? Slanted top.

**Geometery**

Trapezoid. A = (5+4) x 11/2 = 49.5 Long side is 11 in. bottom base is 4 in Correct? Or you need more info?

**Geometery think I got it**

I think I figured it out. The triangle. A= 1/2 x bxh A = 1/2 x 19 x 12 = 114cm area of for Triangle. I got the 12 because the paraelel side of 10 is 22 of the rectangle. So the triangle looks like (attached to rect.) it is 12cm.

**Geometery**

Yes I see what your saying. The bottom of the triangle though is apart of the side of the rectangle. But just a small portion of it. I knew my triangle something was off. A = 1/2 x 10cm???x 19cm The rectangle 10cm is paraelle to 22cm.

**Geometery**

Sorry I added 374.5 (actual calculation of rectangle area) to 9.5 = 384cm total area of the composite figure is what I meant to type.

**Geometery**

Composite figure finding area. Rectangle: A=22cm x 17cm = 374 area of rectangle (Long side is 22cm, Width is 17cm.) Triangle: A = 1/2 x b x h A = 1/2 x 19cm ( no height given) A= 9.5 area of Triangle I added 323.5cm + 9.5cm = 333cm area of the composite figure. Is the the righ...

**Geometery**

Is my answer right? Also, if not is my triangle formula wrong?

**Geometery**

Composite figure finding area. Is this right my answer I came out with is 323.5 cm? Rectangle: A=22cm x 17cm = 374 (Long side is 22cm, Width is 17cm.) Triangle: A = 1/2 x b x h A = 1/2 x 19cm ( no height given) So then, I added the rectangle and trinagle sum together and came...

**Newton's Laws**

1. An 1760 kg car is moving to the right at a constant velocity of 2.94 m/s. (a) What is the net force on the car? (b) What would be the net force on the car if it were moving to the left? 2.A freight train has a mass of 6 107 kg. If the locomotive can exert a constant pull of...

**reading**

Bob Pennons the cowboy. Make inferences. How to do.

**calculus**

Find dy/dx by implicit differentiation. x^4 + x^3y + 4y^2 = 7 x cos y + y cos x = 1

**math**

a bag has 57 blue and green marbles. there are 13 more blue marbles than green marbles. How many blue and green marbles are in the bag

**math**

girl is 6 feet tall and a pine tree next to her is 42 feet tall and casts a shadow that is 28 feet. how long is the girls shadow

**Math**

that answer is wrong...

**Precalculus**

I have a diagram that has 4 rectangular corrals joined together and a barn above it. Fencing is not needed along the back wall of the barn. The perimeter is 200 ft and the question asks... If each corral is 16 ft. long (front to back) how wide will each corral be and what will...

**Precalculus**

Combined area of 1680ft^2 for 4 identical rectangular corrals. Corrals are joined together and no fencing at the back wall of the barn. 200=5d+4w 1680=4dw What length will produce the maximum area? d=12 The dimensions of each corral (lxw) is 12'x35' What will be the re...

**Precalculus**

There are 4 rectangular corrals of identical dimensions along the back wall of an existing barn using 200 ft of fencing. The diagram has 4 rectangular corrals attached together but fencing is not needed on the back wall of the barn. The barn is above the 4 rectangular corrals....

**Precalculus**

The owner of a horse stable wishes to set up 4 rectangular corrals of identical dimensions along the back wall of an existing barn using 200 ft of fencing. The sides of each corral will be attached to the barn, fencing is not needed along the back wall. Find the function that ...

**10th Grade Math-Algebra 2**

(5*x*x*x)(4*x*y*y)

**physics**

What is the maximum speed (in meters/second) with which a 1300 kg car can round a turn of radius 700 m on a flat road, if the coefficent of friction between tires and road is 0.530 ?

**physics**

A 8.0 kg object, moving with a constant velocity of 8.0 m/s, is acted upon by a force of 14 N in the direction of the motion for 6.0 s. What is the velocity (in meters/second) of the object at the end of this time?

**thermochem**

A meal is 8000kJ. If all the energy is converted to heat, how much iced water with a temperature of 0 degrees must a person drink to maintain body temperature of 37 degrees? How do I solve this - using the fact that 1mL water by 1 degree is 4.2Joules? Heat gained by water = ma...

**math**

In division, what does it mean to decide to drop, include or use the remainder? Ex: You decide to hang shelves. Each shelf needs 4 brackets. You have 23 brackets. How many shelves can you hang/ What do you do with the remainder, drop, include or use and why????

**math**

what do hitch hikers do when scholl lets out

**Math**

poop

**Alg 1 quadratic functions**

A baseball player hits a baseball into the outfield. The equation h= -0.005x^2 +x+3 give the path of the ball, where (h) is the height and (x) is the horizontal distance the ball travels. A. What is the equation of the axis of symmetry? It's -100 right? B. What is the Mac ...

**Alg 1**

I'm in the ninth grade and not the smartest community

**Alg 1**

I'm doing quadratic equations x^2 +bx+c =0.I'm supposed to factor each polynomial. I know how to questions like x^2 +8x +12 =0 but this one says, j^2-9jk-10k^2. I'm confused

**Alg 1 quadratic equations**

I'm doing quadratic equations x^2 +bx+c =0.I'm supposed to factor each polynomial. I know how to questions like x^2 +8x +12 =0 but this one says, j^2-9jk-10k^2. I'm confused

**Chemistry**

Consider the following unbalanced reaction. P4(s) + F2(g) PF3(g) What mass of F2 is needed to produce 212 g of PF3 if the reaction has a 84.2% yield?

**mesqite high school**

Is this sentence punctuated correctly? The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties

**geometry**

if the measure of angle 1 is 6n+1 and of angle 4 is 4n+19 what is the measure of angle 2 ?

**stats**

In a gallup poll of 1,038 adults, 540 saif that second hand smoke is very harmful. What is the percentage of adults who said second hand smoke is very harmful?

**english **

The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties

**History**

What were the 5 steps in Indiana becoming a state

**Physics**

a 1.75kg pistol lies at rest on an essentially frictionless bench. it accidentally fires and shoots a 25 gram bullet parallel to the bench. How far has the bullet moved by the time the gun has recoiled 2.60mm?

**Physics**

a carton of eggs sits on the horizontal seat of a car as the car rounds a 26 meter radius bend at 16.5m/s. what is the minimum coefficient of friction that must exist between the carton and the seat if the eggs are not to slip?

**Physics**

a 800 gram ball at the end of a cord is whirled in an almost horizontal circle of radius 1.50 meters. its tangential speed in the circle is 10 meters per second. What must be the tension in the cord? What angle does the cord make with the horizontal?

**math**

Hector owns science fiction novels, coming c books, and mystery novels. He has half as many science fiction novels as comic books and he has three times as many mystery novels as comic books. If he owns a totals of 54 books how many of those book are science friction novels?

**math6**

hey

**Physics**

a small body of mass m revolving in a horizontal circle with velocity V of a constant magnitude at the end of a cord of length L. As the body swings around its path, the cord sweeps over the surface of a cone. The cord makes an angle è with the vertical, so the radius o...

**Physics**

A pendulum oscillates at a frequency of 2 cycles per second. At t = 0 it is released starting at an angle of 20°C. Ignoring friction what will be the position (angle) of the pendulum at a. t = 0.25 sec b. t = 1.6 sec c. t = 5.0 sec

**physics**

what is the maximum acceleration equation?

**physics**

Consider the 45 N weight held by two cables shown below. The left-hand cable is horizon- tal. a) What is the tension in the cable slanted at an angle of 50? Answer in units of N. 007 (part 2 of 2) 10.0 points b)What is the tension in the horizontal cable?

**physics**

A block weighing 6.8 N requires a force of 2.9 N to push it along at constant velocity. What is the coefficient of friction for the surface?

**English**

transitive

**Physics **

A model rocket builder has constructed a rocket of total mass of 1.0kg. The rocket must achieve a speed of 300m/s 5seconds after vertically leaving the launch pad. A) What acceleration and net force is required? B) What thrust must the motor have to achieve this? Thank you!

**science**

name two ways mountains can effect the climate of an area

**Physics 11**

How much would a 80kg astronaut weigh on Earth? How much would they weigh 500 km above the surface of the Earth? Thank you!

**Science**

A revolutionary war cannon, with a mass of 2170 kg, fires a 18.1 kg ball horizontally. The cannonball has a speed of 146 m/s after it has left the barrel. The cannon carriage is on a flat platform and is free to roll horizontally. What is the speed of the cannon immedi- ately ...

**math**

one of the equal sides of an isoceles triangle is 3m less than twice its base. The perimeter is 44m. Find the length of the sides. The teacher gave us the answer of 17m for the two sides and 10 for the base. What formula did he use to find this.

**Physics**

An elevator starts from rest with a constant upward acceleration and moves 1m in the first 1.9 s. A passenger in the elevator is holding a 5.3 kg bundle at the end of a vertical cord. The acceleration of gravity is 9.8 m/s2 . What is the tension in the cord as the elevator acc...

**physics**

Consider the 692 N weight held by two cables shown below. The left-hand cable had tension T and makes an angle of θ with the wall. The right-hand cable had tension 760 N and makes an angle of 40◦ with the ceiling. a) What is the tension T in the left-hand cable slan...

**alegbra**

5x-4y=-18

**ALG II - Probability**

Owners of a restaurant advertise that they offer 1,114,095 diff lunches based on the fact that they have 16 “free fixins” to go along with any of their 17 menu items (sandwiches, hot dogs, and salads). How did they arrive at that number?

**Physics- Lenses**

A planoconvex lens is to have a focal length of 28.5 cm. If made from fused quartz, what must be the radius of curvature of the convex surface?

**physics**

An object with a height of 42 cm is placed 1.6 m in front of a concave mirror with a focal length of 0.45 m. Find the location and magnification of the image produced by the mirror, using the mirror and magnification equations.

**really?**

no not at all

**HELP!!!!!! ASAP**

HElp!!!!!!!!!!!!!!!Asap

**HELP!!!!!! ASAP**

which function below if either has zeros that are complex conjugates? P(x)=x^4-7x^3-27x^2+63x+81 H(x)=x^4-x^2+25x-25

**HELP!!!!!! ASAP**

what does it mean when two of the zeros of a polynomial function are complex conjugates?

**algebra two**

what do you mean

**algebra two**

which function below, if either, has zeros that are complex conjugates? P(x)= X^4-7x^3-27x^2+63x+81 H(x)=x^3-x^2+25x-25

**algebra two**

what does it mean when two of the zeros of a polynomial function are complex conjugates?

**math**

i have 5 coins,a penny,nickel,dime,quarter and loonie. how many different amounts of money can i pay using any combination of the coins?

**math**

a jar has 11 red, 16 violet, 6 green and 25 gray marbles. find p (green)

**math**

To Keep His Wigwam

**social studies**

Tallahassee

**Geography**

What is the capital of Bulgaria?, and what is Bulgaria's most populated city?

**Math**

What do you mean?

**Math**

A homeowner designs a rectangular garden such that the length is 20 feet more than twice the width. If 310 feet of picket fencing are to be used, find the length and width of the garden.

**Math**

I don't understand this equation that you have here?

**Math**

In a special local election, one candidate received 288 votes less than twice the number of votes of the opponent. How many votes did each candidate receive if the total number of votes in the election is 136,395?

**Math**

During and art contest at my school, me and a classmate each won blue ribbons for 1/3 of the pieces you entered in the contest. You won 2 blue ribbons and my classmate won 3 blue ribbons. Explain how this could be?

**Math**

Rosa invested $8000 for one year, part ast 8% annual interest and the balance at 10% annual interest. Her total interest for the year was $700. How much money did she invest at each rate?

**chemistry**

The mass of a golf ball is 45.9 . If it leaves the tee with a speed of 80.0 , what is its corresponding wavelength?

**College Physics**

More like Junior year of high school physics, this identical problem is in my textbook from last year.

**algebra**

hi was up

**algebra**

hi was up

**math**

Directions: Determine if the given lengths in each problem can form a triangle. 1. 7in. , 3in. , 10in.

**Geometry**

How do you find the center of an equilateral triange?

**math**

3x+5y= -11 x-2y= 11

**math**

solve: 3x+5y= -11 x-2y=11

**Language Arts**

What is the root word of "solitary"?

**math plzz help due tomorow**

what is the lowest number that is greater than 1000 and divisible by 2,3 and 6, but not by 5,9, and 10.

**math**

does any animal have more than 9 years to live

**5th grade**

what was cattle ranching in the 1800's?

**Chem**

what effects on Ph and the Ka value does the hydration of an acid have? For example H2SO4 versus H2SO4*H2O

**Pre-algerbra**

Ok, It is riddle. Jack is married to Jill. There son wants to know their age. Jack says,"if you reverse the digits in my age, you get your mother's. Jill said" The sum of my age is your dad's age equal to 11 times the difference in oour ages. Remember that I ...