# Posts by JEFF

Total # Posts: 831

**algebra**

Susan is on her way home in her car. She has driven 24 miles so far, which is one-half of the way home. What is the total length of her drive?

**Algebra**

1 year

**Biology**

What is osmosis

**Further maths**

Show graphically the solution sets of the following inequalities: (a) X square - 7 * h2 > 0 (b) 3X square - 5X - 2 > 0

**Physics**

A 250kg car initially at rest was travelling with acceleration of 10m/s square. Calculate the kinetic energy after 3 seconds

**calculus check**

Find the limit as x approaches 3 of [(2x^3-5x^2+7)/(3sin(xpi/6)-cos(xpi))] When I plugged in 3, I got 4.

**math**

Raymond has four more sisters than Tyler.Write a number sentence to show Raymond=r tyler=t

**calculus**

If f(x)=the integral of (3x^2+2x+4) dx, find C if f(1)=10.

**physics**

A charge of -4.50 10-6 C is placed at a point in space where the electric field is directed toward the right and has a magnitude of 9.00 104 N/C. What are the magnitude and direction of the electrostatic force on this charge?

**maths**

Wasn't it posted 11 months before your objection Jonathan??

**Physics**

Two disks are originally separated. The mass of Disk #1 is 1.5 kg, and the mass of disk #2 is 2.6 kg. Disk #1 has a radius of 10 cm, and it is rotating at an angular velocity of 15.0 rad/sec. Disk #2 has a radius of 15 cm, and it rotates in the opposite direction at an angular...

**physics**

2. On the spin cycle on a washing machine, the drum holding the clothes goes from zero to 180 rpm (revolutions per minute) in 8.0 seconds. (Hint: Be sure to change rpm to radians/sec.) (a) What is the angular acceleration (in radians/sec2) during this time period? (b) How many...

**math**

3 times 2 and 2/5

**chemistry**

net ionic equation for reaction between copper carbonate and the hydroiodic acid

**Algebra**

HI can you please help this is the only question I cant figure out :) Graph the linear function y = 1/3x - 4 1/3 is one third :)

**Algebra**

What are the first four terms of an arithmetic sequence if the common difference is 1.5 and the first term is 15? 15,30,45,60 15,16.5,18,19.5 15,22.5,33.75,50.625 none of the above What are the first four terms of a geometric sequence if the common ratio is 10 and the first ...

**math**

A spring is attached to the ceiling and pulled 12 cm down from equilibrium and released. The amplitude decreases by 17% each second. The spring oscillates 16 times each second. Find an equation for the distance, D the end of the spring is below equilibrium in terms of seconds, t.

**Algebra II**

Let 1990 be 1, 1991 be 2, 1992 be 3, and 1994 be 4 3885=10(3^3)+115(3^2)+25(3)+2505 3885= 270 + 1035 + 75 +2505 3885=3885 1992 is the answer

**math**

I multiplied my number by 102,then subtracted 228. I then divided by 6.Finally I added 51. My result was 200. What number was I thinking of ?

**bioilogy**

Discuss possible benefits and drawbacks of a transgenic organism such as Bt corn?

**math**

use these 5 digits to make 24 0-1-2-3-4 Use each digit only once. record how you made 24

**math**

use an array to explain how you can solve 15 x 6 using facts that you already know

**Chemistry**

Arrange the following compounds in order of decreasing ease of elution from a column of silica gel: a) 2-octanol; b) 1,3-dichlorobenzene; c) tert-butylcyclohexane; d) benzoic acid

**Math**

True

**Algebra**

If x is the length and y is the width of a rectangle, find and graph all integer pairs(x,y) that create a rectangle with a perimeter of 12 cm.

**Language arts**

What's the answer for 4

**business math**

The French company has a beginning inventory of $77,000 and an ending inventory of $80,000. sales were $280,000. assume French's markup rate on the selling price 40%. based on the selling price what is the inventory turnover at cost. please explain?

**physics**

The driver of a car traveling at 60 ft/sec suddenly applies the brakes. The position of the car is s(t) = 50t - 2t2, t seconds after the driver applies the brakes. How many seconds after the driver applies the brakes does the car come to a stop?

**calculus**

The driver of a car traveling at 60 ft/sec suddenly applies the brakes. The position of the car is s(t) = 50t - 2t2, t seconds after the driver applies the brakes. How many seconds after the driver applies the brakes does the car come to a stop?

**Math/physics**

Steve??? Can you help me?

**Math/physics**

This is my last problem. Please help! A motorcycle rider starts out on top of a ramp 10 m high and then rides down and jumps the motorcycle when he comes to the end of the ramp (like evil knivel). The rider is at the peak of his jump at 5 m. How fast is the motorcycle going ...

**Math**

Thank you, Steve!

**Math**

Can someone please help me set this up. I didn't quite understand how to do this today. Before leaving Earth, the mass of an astronaut is measured to be 60kg. The astronaut lands on the Moon and measures the acceleration of gravity to be 1.6 m/s2(squared). What would the ...

**Math**

17 over 20 is your answer. 85 over 100 which is 85% is divisible by 5. So, you answered 17 out of 20 questions correctly.

**Math - Ratio**

A map scale is 1:10,000. Find the actual distance in centimetres represented on a map by 5cm. Convert your answer to metres and kilometres.

**Physics**

Right now in physics we are learning about electric potential energy and electric potential. My question is: P and Q are points within a uniform electric field that are separated by a distance of 0.1 m. The potential difference between P and Q is 50 V. How much work is ...

**fractions**

In Mr. Johanessen's class, 1/4 of the students failed the final exam. Of the remaining class, 1/3 scored an A. What fraction of the whole class passed the test but scored below an A?

**algebra**

Two positive whole numbers are in a ratio of 3 to 4. If the smaller of the two numbers is 9, what is the average of the two numbers?

**Algebra PLEASE?**

Using the numbers 5, 8, and 24, create a problem using no more than four operations (addition, subtraction, multiplication, division, square, square root, cube, cube root) where the solution will be an irrational number. Explain why the result of your operations is an ...

**Math**

Evaluate 1/3 + square root(3)/12 + 1/16 + square root (3)/64. I hope this makes sense. Right now we're learning sequences and series and I'm really confused on this question.

**English Help**

I got it :) I realized that Thank you!

**English Help**

To what extent can goals and behaviors change as a result of learning

**Algebra please?**

This is my last test question :) How does finding the square root of a number compare to finding the cube root of a number? Use the number 64 in your explanation.

**MY BRO'S B-DAY HELP!!!**

Bruh you can let him play your videogames if you have any with you! :) I always liked it when my brother let me play with him :D

**AP Calc**

A spherical snowball is uniformly melting art of rate of pi/18 in^3/min. At what rate is its diameter decreasing when its surface area is 3 in^2?

**Algebra Help please?**

is it 256?

**Algebra Help please?**

what is the value in "x" in 16^2 = x

**Algebra PLEASE Help**

3(4 - 2x) - -2x SHow how you did it?

**science**

21

**Math**

isn't it 7m + 3m = 10m?

**Pls Help**

:/ Im sorry but its not that i'm impatient I has to go somewhere soon D:.

**Science help URGENT**

Muscles located in the walls of the small intestine help push digested material along. Muscles located in the walls of arteries help push blood along. Based on this information and your understanding of muscle types, which of the following statements is correct? Both sets of ...

**LA - 2 questions**

She will go to paris next autumn Im not sure But, bleak means Like cold and cloudy, Unwelcomeing, or discouraging

**Algebra Help! Please**

So there is no solution?

**Algebra Help! Please**

Ok so I did what you told me reiny but I cant figure out number three which is here 10x - 2 - 6x = 3x - 2 + x Please show how You did it please?

**ALGEBRA Help Please**

Decide whether each equation has one solution, no solution or infinitely many solutions 2(x - 3) = 2x 3(y - 3) = 2y - 9 + y 10x - 2 - 6x = 3x - 2 + x 4(x + 3) + 2x = x - 8 Please Show how you did it if possible please thanks! :)

**Science? Help**

Summarize the steps of sexual reproduction and explain how it increases genetic diversity.

**Algebra Help**

Oh Ok thank you

**Algebra Help**

Last one 3(x - 4) = 5(x + 2) Please show how you did it

**Algebra Help**

Than You Mrs. Sue :D

**Algebra Help**

8x – 3 = 15x + 18 x = –3 x = 3 x = 2.1 x = .9 Can you show how you did it please?

**math (stats)**

but how do use percent?

**math (stats)**

The cholesterol levels of adult American women are approximately normal with the mean of 188 mg/dl and a standard deviation of 24 mg/dl. a company wants to test a certain medication for women falling in the highest 15% of cholesterol readings. what is the lowest cholesterol ...

**one more history question please?**

How did sectionalism emerge in the 1820s? Compare the priorities of the regions

**Math**

Your welcome!

**Math**

2.001,2.01, 2.011 , 2.1, 2.11 :)

**History Help Please?**

Thank You All!

**History Help Please?**

What resources led to the appearance of the Industrial Revolution in New England?

**Algebra Help URGENT Please?**

1,900?

**Algebra Help URGENT Please?**

Ooops lol crap wrong answer

**Algebra Help URGENT Please?**

so like 38.7 increase? the is closest in my answers

**Algebra Help URGENT Please?**

Jamie is a salesperson in a shoe store and earns $95 per week, plus 20% of her weekly sales. If Jamie makes $475 in one week, what are her sales for that week?

**Algebra help URGENT Please?**

Ok I got $4.15 but ok thx :D

**Algebra help URGENT Please?**

Chris and five of his friends go out to dinner. The total bill comes to $124.29. They decide to leave a 20% tip. Each person will contribute an equal amount to the total tip. Estimate what each person should contribute. a$29.00 b$21.00 c$5.00 $4.15

**englashes**

potatoes are 21.69 mega metres away from deez nutz

**Science plz?**

Identify the process that is necessary for sexual reproduction, explain why it is necessary, and identify how this process increases genetic variation.

**English**

What are some words that start with 'w" and mean the same as "change"?

**science**

green

**math**

30 its the correct answer

**math**

30

**algebra 2**

d=0.5*g*t^2 therefore, t^2= d/ (0.5*g) where: d= 2500 ft g = 32.2 ft /sec^2 solving t: t^2 = 2500/ (0.5*32.2) t^2 = 155.28 sec^2 t= 12.46 sec

**Last BrainMath :(**

um no

**physics**

an airplance traveling at 450 km/h needs to reverse its course. the pilot decides to bank the wings at 12 degrees. find the time needed to reverse the course

**S.S.**

You are correct

**Math Algebra**

Thank you

**Math Algebra**

Ok so I have figured out that u multiply the coordinates by 2 so am I right? V(12,4) W(-4,8) X(-6,-4) Y(6,-10)

**Math Algebra**

The coordinates of quadrilateral VXY Are given below. Find the coordinates of its image after a dilation with the given scale factor V(6, 2), W(-2, 4), X(-3, -2), Y(3, -5) scale factor of 2 This question is confusing me and is worth 3 points please help :)

**Music**

And dubstep

**Math algebra Help please**

thanks guys

**Math algebra Help please ms.sue**

Plz halp

**Math algebra Help please**

A right triangle has an area of 24 ft^2 the dimensions of the triangle are increased by a scale factor of 6 A.48ft^2 B.72ft^2 C.144ft^2 D.864ft^2

**math**

how to write 700+3000+40000+12+80 in standard form

**Math, Help Please IF you can**

Chapter 6, Section 6.1, Question 036 The function g(x) is obtained by shifting the graph of y=x^2 If g(3) = 25 (a) g is the result of applying only a horizontal shift to y=x^2 g(x) = (b) g is the result of applying only a vertical shift to y=x^2 g(x) = g left-parenthesis x ...

**MATH HELP PLEASE**

1. What is the product of (5.1 × 10^3) • (3.2 × 10^3)? (1 point) 16.32 × 10^6 1.632 × 10^7 16.32 × 10^9 1.632 × 10^10 2. What is the product of (7.28 × 10^-2) • (9.1 × 10^-2)? (1 point) 6.6248 × 10^-3 66.248 &...

**Math**

True

**Physics**

When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 852 N and the drag force has a magnitude of 1012 N. The mass of the sky ...

**math**

Is it right? :)

**math**

Ok it is R^2 I believe

**math**

What are the answers?

**Science**

Dust mites are microscopic bugs that are too small to see with a dissecting microscope. To see the details of a dust mite’s skin, which of the following microscopes would you use? A. dissecting microscope B. compound microscope C. transmission electron microscope D. ...