math

answer these or you don't have to just need some help?


13.
Which set of numbers has 270 as its least common multiple?

A.30, 90, 390
B.18, 30, 54
C.25, 125, 120
D.2, 9, 15


14.
Which list shows the numbers in order from greatest to least?

A.16, 8, 4, –12, –15
B.–12, –15, 16, 8, 4
C.16, 8, 4, –15, –12
D.–15, –12, 16, 8, 4



15.
Which shows the prime factorization of 50?
5 EXPOENT 2 · 10
2 EXPONET 2 · 5
2 EXPONET 2 · 5 EXPONET 2
2 EXPONET· 5 EXPONET 2


17.
Which number is closest to zero on a number line?

A.1/12
B.10/101
C.1/10
D.1/4

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asked by Matt
  1. 270 = 2 * 3^3 * 5
    A: 2*3*5, 2*3^2*5, 2*3*5*13 Nope
    B: 2*3^2, 2*3*5, 2*3^3 Yes
    C: 5^2,5^3,2^3*3*5 Nope
    D: 2,3^2,3*5 Nope

    14: A
    did you really have a problem determining which numbers were greater than others?

    15: 50 = 2*5^2, so the last, ignoring the EXPONENT with no value on the right.


    17:
    1/12 = 0.083
    10/101 is almost 10/100 = 0.100
    1/10 = 0.100
    1/4 = 0.250

    So, which do you think is the smallest?

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    posted by Steve
  2. I'm still not sure which one is the smallest still I'm doing the same test

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    posted by Rose 11

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