math 5th
Estimate teh area of the circle and use 22/7 for pie. Teh circle shows line all teh way accross measruing 28cm. Find area. Can some one explain how
chemistry
how many liters are occupied by 0.908 mol of nitrogen at 108 degrees C and 0.858 atm pressure?
geometry
For a cone, if the radius was quadrupled and the slant height was reduced to one sixth of its original size, what would be the formula to find the modified surface area?
Statistics
1 should be ¼ so it should be drawn 25 times 2 should be ½ so it should be drawn 50 times 5 should be ¼ so it should be drawn 25 times Avg=10/4=2.5 S2=(2.25+.25+.25+6.25)/4=9/4=.25 so S=1.5 ES=100(2.5)=250 SE=√100 (1.5)=15 A. number of 2's B. Sum...
pre calculus
find the average rate of change of f(x)=x^3-5x+3: a. from -6 to -3 b. from -1 to 2 c. from 2 to 8 I am so lost, can someone please show me how to do this?
math
use the rational zero theorem to find all the real zeros of the polynomial function. use the zeros to factor f over the real numbers: f(x)=4x^4+9x^3+30x^2+63x+14 I cant even find sample problems to help me figure this out. help me please?
Trig
How do I use the unit circle to evaluate tan(-3pi/4)
math
A large cylinder has a volume of about 5,400 cubic cm. A small cylinder is similar in shape to the larger cylinder with a scae factor of 2/3.Which measurement is closest to the volume of a cylinder. f)1600cubic cm g)2400 cubic cm h)2700 cubic cm j)3600 cubic cm The answer is s...
Chem
if 15 g of nitrogen reacts with 15 g of hydrogen, 10.5 g of ammonia is produced. what is the percent yeild of this reaction?
Algebra
Oh! So it'll be: 5*7=35 35+50=85 Will save 85 dollars after the seventh month. Thanks.
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