i think the second one would be the best estimate.
the rule for rounding is 5+ you would go up and 4 below you would round down, so:
221 -> 200
485 -> 500
562 -> 600
833 -> 800
therefore, 200+500+600+800 is the answer
First, we should find out what the circumference of one can is and then multiply it by two, because they ask us about two cans.
The formula for calculating the circumference is:
C = 2πr
Good news - we have r! r equals 8.3 cm.
So the circumference of one can, hence length of one piece of paper, equals 2π * 8.3 = 16.6π. Length of two pieces of paper is the result of this multiplication: 2 * 16.6π = 33.2π
Answer:
x^6y^3
Step-by-step explanation:
- To raise a product to a power, raise each factor to that power
(x^2)^3 × y^3
- simplify the expression by multiplying exponents
x^6y^3
Answer:
c= 7/x
Step-by-step explanation:
Answer:
a + b = 1 or 4
Step-by-step explanation:
The integer = 3a5b
The factors of the integer includes 5 and 6
∴ 5 × 6 = 30 is a factor of the integer hence 10 is also a factor which gives b = 0
We check for factors of four digit numbers with the first digit = 3, last digit = 0, penultimate to the last digit = 5 and divisible by 30
We have a50 divisible by 30, which gives, a5 divisible by 3 which includes
15 and 45 hence a can be 1 or 4 and a + b = 1 + 0 = 1 or 4 + 0 = 4.