Answer:
it is C)15x - 175 < 10
Step-by-step explanation:
9514 1404 393
Answer:
a) 230
b) 300
c) 2×10^-2
d) 1.1×10^-6
Step-by-step explanation:
a) 0.26 × 890 ≈ 1/4 × 900 ≈ 225 ≈ 230
b) 1.95/(.67×10^-2) ≈ 2/(2/3)×10^2 ≈ 300
c) 2010×10^-5 ≈ 2×10^3×10^-5 = 2×10^-2
d) 9.98×10^-4/(9×10^2) = 9.98/9×10^(-4-2) ≈ 1.1×10^-6
__
YMMV depending on how you do the rounding and approximate multiplication and division.
The first one can be done multiple ways. For most accurate results, increasing one number while decreasing the other is recommended. (You don't want to compute 0.3×900, for example.)
Answer:
48 cubic units.
Step-by-step Explanation:
random cubic units
tower-stacked cubic units
x 
x 
Find the number in the hundredth place 9 and look one place to the right for the rounding digit 0. Round up if this number is greater than or equal to 5 and round down if it is less than 5.
= 0
81 because 3×3=9×3=27×3=81
