
 zeef
 Super Member
Exponents and Scientific Notation
help plzzz
1. (x3)5 Ax15 Bx2 Cx8 Dx15 Ex2 Fx8
2. (x3)5 Ax15 B1/x15 Cx2 Dx2 Ex15 Fx8
3. x2/y4 Axy2 B(xy)2 Cxy2 Dxy4 E(xy)2 Fy4/x2
4. (4x2)1 A16x2 B4x2 C1/16x2 D(4x)2 E1/4x2 F16x2
5. (2/5x2)3 A125/8x6 B8/125x6 C8/125x6 D(125x6)/8 E125/8x6 F125/8x6
6. The planet Earth weighs 6.6 x 1021 tons. Write this number in standard notation. AIt is already in standard notation B13.86 * 10 C138.6 D1386 E6,600,000,000,000,000,000 F6,600,000,000,000,000,000,000
7. Venus is 67,000,000 miles from the sun. Write this number in scientific notation. A6.7 x 107 B67 x 106 C670 x 105 D6700 x 104 E67,000 x 103 FIt is already in scientific notation.
8. Multiply the following numbers using scientific notation: (2 x 103)(2 x 104). A2 x 107 B4 x 107 C4 x 1012 D4 x 101 E4 x 1034 F2 x 1012
9. Divide the following numbers using scientific notation: (4 x 102)/(1 x 103) A5 x 105 B4 x 101 C4 x 105 D4 x 101 E5 x 101 F5 x 105
10. Perform the following calculation: (1 x 102)(2 x 103)/(1 x 102) A4 x 103 B3 x 103 C2 x 104 D2 x 103 E2 x 101 F1 x 102
11. How many centimeters are in two kilometers? Give your answer in scientific notation. A2 x 102 B1 x 105 C2 x 105 D2 x 103 E1 x 102 F3 x 102
12. How many grams are in 4,247 mg? Give your answer in standard notation. A42.47 B4.247 C42 D4247 E424.7 F424
13. How many microliters are in a two liter bottle of soda? Write your answer in scientific notation. A1 x 103 B1 x 106 C2 x 103 D2 x 105 E2 x 106 F3 x 104
14. Examine the following solution to a conversion problem. Do you see a mistake? If so, identify the location of the first mistake and explain why it is incorrect.
AThe conversion is not possible. BThe first problem occurs in column (1). The problem should begin with mg. CThe first problem occurs in column (2). 1 kg is not equal to 1000 g, so that should not be used as the conversion factor. DThe first problem occurs in column (2). The conversion factor is upside down (grams should be on top, and kg should be on bottom). EThe first problem occurs in column (4). The multiplication and division was performed incorrectly. FNo mistakes.
15. Examine the following solution to a conversion problem. Do you see a mistake? If so, identify the location of the first mistake and explain why it is incorrect.
AThe first problem occurs in column (1). The problem should begin with cm. BThe first problem occurs in column (2). 1 m is not equal to 1000 mm, so that should not be used as the conversion factor. CThe first problem occurs in column (2). 1 m is not equal to 1000 mm, so that should not be used as the conversion factor. DThe first problem occurs in column (4). The multiplication and division was performed incorrectly. ENo mistakes. FThis conversion is not possible.
16. Examine the following solution to a conversion problem. Do you see a mistake? If so, identify the location of the first mistake and explain why it is incorrect.
AThe first problem occurs in column (4). The multiplication and division was performed incorrectly. BThe first problem occurs in column (3). Using scientific notation for one conversion factor, but not the other, is not allowed. CThe first problem occurs in column (2). The units are not equal, so that should not be used as the conversion factor. DThe first problem occurs in column (1). The problem should begin with cm. EThis conversion is not possible. FNo mistakes.
17. Examine the following solution to a conversion problem. Do you see a mistake? If so, identify the location of the first mistake and explain why it is incorrect.
ANo mistakes. BThe conversion is not possible. CThe first problem occurs in column (1). The problem should begin with L. DThe first problem occurs in column (4). The multiplication and division was performed incorrectly. EThe first problem occurs in column (3). We are not allowed to use a conversion factor of (1 L/ 1L). FThe first problem occurs in column (2). 1 L is not equal to 1000 kL, so that should not be used as the conversion factor.
18. Estimate the length of a pen in centimeters. Aabout 1 cm Babout 2 cm Cabout 5 cm Dabout 13 cm Eabout 23 cm Fabout 30 cm
19. Estimate the amount of juice in a typical orange juice carton in liters. Aabout 8 liters Babout 5 liters Cabout 4 liters Dabout 3.5 liters Eabout 2 liters Fabout .5 liters
20. Estimate the weight of a small can of soup in grams. Aabout 30 grams Babout 500 grams Cabout 250 grams Dabout 325 grams Eabout 750 grams Fabout 100 grams
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 bobbym
 Administrator
Re: Exponents and Scientific Notation
Hi;
For number 1, I can not understand most of that.
In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 zeef
 Super Member
Re: Exponents and Scientific Notation
ooh its saying to the power of i got c for the first one
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 zeef
 Super Member
Re: Exponents and Scientific Notation
ooh its saying to the power of i got c for the first one
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 bobbym
 Administrator
Re: Exponents and Scientific Notation
Oh, I get it.
1) C is correct. You could put some spaces in there. Powers like x squared are written like this x^2 instead of x2.
In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 zeef
 Super Member
Re: Exponents and Scientific Notation
for 2 i got c for 3 i got 4 and i need help for the rest
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 bobbym
 Administrator
Re: Exponents and Scientific Notation
Hi;
If this is what 2) is:
Then C is incorrect! Try again please.
In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 zeef
 Super Member
Re: Exponents and Scientific Notation
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 zeef
 Super Member
Re: Exponents and Scientific Notation
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 bobbym
 Administrator
Re: Exponents and Scientific Notation
Hi;
When you raise an expression to a power you are really doing this:
So the exponent is (3)+(3)+(3)+(3)+(3) = 15
In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 zeef
 Super Member
Re: Exponents and Scientific Notation
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 bobbym
 Administrator
Re: Exponents and Scientific Notation
Hi;
Yeparoo! I hate to scare you but b is correct too!
In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 zeef
 Super Member
Re: Exponents and Scientific Notation
i really need help in 3 4 5 please
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 bobbym
 Administrator
Re: Exponents and Scientific Notation
Hi
3. x2/y4 Axy2 B(xy)2 Cxy2 Dxy4 E(xy)2 Fy4/x2
4. (4x2)1 A16x2 B4x2 C1/16x2 D(4x)2 E1/4x2 F16x2
5. (2/5x2)3 A125/8x6 B8/125x6 C8/125x6 D(125x6)/8 E125/8x6 F125/8x6
3) F 4) E 5) A
In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 zeef
 Super Member
Re: Exponents and Scientific Notation
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 bobbym
 Administrator
Re: Exponents and Scientific Notation
Hi;
Did them already, check post #14
In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 zeef
 Super Member
Re: Exponents and Scientific Notation
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 zeef
 Super Member
Re: Exponents and Scientific Notation
thanx
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 zeef
 Super Member
Re: Exponents and Scientific Notation
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 bobbym
 Administrator
Re: Exponents and Scientific Notation
Please hold on. For 6, what did your teacher tell you about standard notation?
In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 zeef
 Super Member
Re: Exponents and Scientific Notation
oooh so is it when i write the 6.6 and then 21 zeros to the right since its a positive
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 bobbym
 Administrator
Re: Exponents and Scientific Notation
Nope, I do not think so. I think you write it without the decimal point. Right now it is in scientific notation.
In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 zeef
 Super Member
Re: Exponents and Scientific Notation
6. The planet Earth weighs 6.6 x 1021 tons. Write this number in standard notation. AIt is already in standard notation B13.86 * 10 C138.6 D1386 E6,600,000,000,000,000,000 F6,600,000,000,000,000,000,000
so its f
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
 bobbym
 Administrator
Re: Exponents and Scientific Notation
In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 zeef
 Super Member
Re: Exponents and Scientific Notation
One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3
