Wednesday

April 16, 2014

April 16, 2014

Total # Posts: 27

**Pre Algebre-please help!**

If there is a cylinder that is 3cm. tall and has a radius of 7.5cm. what is the surface area? Please help! Thanks!

**Math**

21-3c if c=7 {substitute and solve}. so... 21-3x7 21-21 =0

**Lang. Arts//Reading**

What is the theme of the book "Kingdom Keepers", Disney After Dark? It is the first book and it is written by Ridley Pearson.

**Pre Algebra**

Haha, ya! thank you so much steve!

**Pre Algebra**

Hi, does anybody know what a quadrilateral in which opposite sides are congruent and parallel is? It's on a crossword puzzle on my math homework and is thirteen letters long and from the beginning the seventh letter is an E. Thanks so much to anyone who will help me out!

**synonyms**

Pretending to be hurt.

**Social Studies**

Thanks Ms.Sue! I really needed an answer like yours. It was so helpful!!

**Social Studies**

In ancient Greece, what was the importance of the Olympics? Thanks so much to anyone who will try to help!

**math**

Sorry I wasn't entirely sure if rounding was needed. My mistake-sorry!

**math**

Hi I really hopes this helps. So from what I understand your asking for 11 times 12 divided by 15. So, 11 times 12=132 and 132 divided by 15 is 8.8 if you round then 9.

**Health/PE**

If you do a neck stretch, you can do a type of stretch on the right side of your head and then you could do that same type of stretch on the left side. And for the calf stretch you can do calf raises with your toes pointing in and out they give a different stretch too.

**science/math**

Kelly hiked a total of 4 miles in 80 minutes. How fast was Kelly walking.

**math percentage**

1/5 of 8300 2/3 of 10,599

**chemistry**

A student dissolves 0.550 mol of a nonvolatile, nonelectrolyte solute in one kilogram of benzene (C6H6). What is the boiling point elevation of the resulting solution? in degrees celsius

**5th grade**

62.7-43.85=

**5th grade**

62.7-43.85=

**5th grade**

62.7-43.85=

**Math**

Trig Identity Prove: cos(x+y)cos(x-y)=cos^2(x)+cos^2(y)-1

**Math**

Required to Prove the following trig identity: (cos2x)^2 + (sin2x)^2 = 1

**Math**

If cos A = 1/3 with 0 < A< pi/2, and sinB=1/4, with pi/2<B<pi. calculate cos(A+B). My answer is (-sqrt15-2sqrt2)/12 But the back of the book says the answer is (-sqrt15+2sqrt2)/12 Am I wrong or the back? Please explain

**Math**

Explain how you can transform the grap of f(x)= logx to produce g(x)=log(10nx), for any n>0.

**Math**

Sorry the question is: log[(x^2+7x+12)/x^2-9)]

**Math**

Hi there I need help with the restrictions on the variables of this question: Simplify. State any restrictions on the variables. log(x^2+7x+12)/log(x^2-9) So my answer is: log(x+4/x-3) which is correct. Now for the restrictions, I have: x<-4 and x>3 However the back of t...

**Math**

Use your knowledge of exponents to solve. a) 1/2^x=1/(x+2) b) 1/2^x>1/x^2 So I know that these functions are rational functions.. and I am trying to solve for x. I tried to solve them by I keep getting stuck with the exponent 2 which is the exponential function.. Help please

**Math**

The acceleration due to gravity is inversely proportional to the square of the distance from the centre of Earth. The acceleration due to gravity for a satellite orbiting 7000 km above the centre of Earth is 8.2 m/s^2. a) write a formula for this relationship. b) at what heigh...

**Trig**

The angle 2x lies in the fourth quadrant such that cos2x=8/17. 1.Which quadrant contains angle x? 2. Determine an exact value for cosx 3. What is the measure of x in radians? ---------------- I know that quadrant 4 has 2x in it, so quadrant _____ has to have x ? for part 2, th...

**6th Grade Social Studies**

why was there an increase in the amount of goods produced during the industrial revoluton

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