Questions on Algebra: Decimal numbers, power of 10, rounding answered by real tutors!

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Algebra: Decimal numbers, power of 10, rounding

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Question 223714: Express this number in decimal form
(8.6 * 10^2)(4.6 * 10^-5)
Click here to see answer by drj(1380)

Question 223712: Express this number in scientific notation
1,900,000
Click here to see answer by drj(1380)

Question 223926: (5y-10) - (y-3)
Click here to see answer by drj(1380)

Question 223922: express the polynominal in descending or if already polynominal so state.
9x+7x^4
Click here to see answer by drj(1380)

Question 223561: A weather balloon is launched at sea level.The balloon is carrying instruments that measure temperature during the balloon's trip.After the balloon is released, the data collected shows that the temperature dropped 0.15'F for each meter that the balloon rose. If the temperature at sea level is 50'F, determine the temperature at a distance of 60 meters above sea level.
Click here to see answer by ankor@dixie-net.com(6691)

Question 224676: A numeral with 9 in the ten thousands place and the tens place
Click here to see answer by checkley77(7035)

Question 225184: Ben is making wooden toys for the next arts and crafts sale. Each toy cost Ben $1.80 to make. if he sells the toys for $3.00 each, how many will he have to sell to make a profit of exactly $36.00?
Click here to see answer by LtAurora(115)

Question 225317: (x+10)(x-12)
Click here to see answer by LtAurora(115)

Question 225316: 4x(12x-6)
Click here to see answer by LtAurora(115)

Question 225318: (x-9)(x^2+9x-4)
Click here to see answer by LtAurora(115)

Question 225319: 24x-40 divided by 8
Click here to see answer by LtAurora(115)

Question 225321: 32x^2+24x-11 divided by 4x
Click here to see answer by LtAurora(115)

Question 225327: x^2+9x+14 divided by x+2
Click here to see answer by LtAurora(115)

Question 225324: (6x^2-8x+6) + (-4x^2-8x-1)
Click here to see answer by LtAurora(115)

Question 226240: Estimate the product 6.92 x 32.458 by rounding to the nearest one.
Click here to see answer by jim_thompson5910(13787)

Question 227256: Need to know how to round 9.95 to the nearest tenth. Thanks
Click here to see answer by rfer(2688)

Question 231132: please help me solve this equation:.09+120.8 divided by 4(2.5-6.4)

Click here to see answer by checkley77(7035)

Question 232015: How would you write "two thousand twenty-seven thousandths" as numerals? Thank you.
Click here to see answer by stanbon(26259)

Question 232167: which is greater 5.6 or 5.06. My son's math book doesn't explain those.
Click here to see answer by rfer(2688)

Question 232456: For the decimal 8.57932: What is the place value of 7? What is the place value of 2?
Click here to see answer by unlockmath(108)

Question 232457: For the decimal 8.57932: What is the place value of 7? What is the place value of 2?
Click here to see answer by rfer(2688)

Question 232652: The mass of a dust particle is 7.53 x 10^-10 kg. If there were 6 x 10^4 particles in a giant dust ball on your floor, what would be the mass of that dust ball? Express your answer in scientific notation.
Click here to see answer by checkley77(7035)

Question 232649: The Atlantic Ocean has a volume of 77,640,000 cubic miles. If there are roughly 7.48 gallons in one cubic foot, then how many gallons are in the Atlantic Ocean? (1 cubic mile = 5280^3 cubic feet). Express answer in scientific notation. Round answer to the nearest tenth.
Click here to see answer by checkley77(7035)

Question 232648: This is pretty confusing how would I do this
Of the 20,118 runners who started the 2006 Boston Marathon, 19,682 finished the 26.2 mile course. What is the total distance of all the runners that finished the race? How many times around the globe would these marathon runners go? Consider the circumference of the Earth to be 2.5 x 10^4 miles. Express answer in standard notation. Round answer to nearest tenth.
Click here to see answer by checkley77(7035)

Question 232700: Algebra: What is decimal form of 7/12?
Click here to see answer by rfer(2688)

Question 232768: How do I solve this equation:
x - 0.25x = 72
Click here to see answer by rfer(2688)

Question 233850: What is the decimal halfway between 0.9999999 and 1.1?
How did you find the answer?
Please help! :)
Click here to see answer by scott8148(3382)

Question 234453: please Round 8.8227 to the nearest tenth
Click here to see answer by rfer(2688)

Question 236973: 72.9301 in word form
.414783 in word form
470.03072 in word form
Click here to see answer by RAY100(1637)

Question 237047: what is the decimal number of 500

Click here to see answer by thrasherlax74(11)

Question 237838: Light travels at approximately 1.86 x 105 miles per second. The Sombrero galaxy is approximately 1.652 x 1020 miles from Earth. How long does light from the Sombrero galaxy take to travel to Earth? Give your answer in terms of seconds. Then convert your answer to years. Express your answer in scientific notation, round to the nearest hundredths place. (d=rt)
Click here to see answer by ankor@dixie-net.com(6691)

Question 237840: Mercury's average distance from the sun is 57,910,000 km. The Earth is approximately 93,000,000 miles from the sun. What would be the distance of a trip from Mercury to Earth, via the sun? Look out for the units!!! (1 km = 0.62 mi) Express answer in scientific notation. (Round to the nearest thousandths place.)
Click here to see answer by College Student(208)

Question 238237: subtract -9.4-(-10.8)
Click here to see answer by checkley77(7035)

Question 238236: add -18.2+(-10.8)
Click here to see answer by checkley77(7035)

Question 238235: round the provided decimal to the given place value
63.4523 nearest thousandth
Click here to see answer by checkley77(7035)

Question 238231: write the provided decimal as a fraction or a mixed number
9.005
Click here to see answer by checkley77(7035)

Question 238303: What 10 to the negative 5th power in decimal ?

Click here to see answer by checkley77(7035)

Question 238425: what is 10 over 50 as a decimal?

Click here to see answer by Fombitz(2113)

Question 238228: write the provided decimal in words
233.056
Click here to see answer by College Student(208)

Question 239962: how do i change a percent to a decimal?
Click here to see answer by solver91311(5072)

Question 240274: step by step directions to turning a decimal into a fraction in its simplest form

Click here to see answer by Alan3354(6059)

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