So we can start with the full of possibilities and eliminate them one by one.
The full set is {0,1,2,3,4,5,6,7,8,9}.
Now we know that any prime greater than 2 is odd as otherwise it would have 2 as a factor, so we can eliminate all of these digits that would be an even number, leaving:
{1,3,5,7,9}
We also know that any prime greater than 5 cannot be a multiple of 5 and that all numbers with 5 in the digits are a multiple of 5, so we can eliminate 5.
{1,3,7,9}
We know that 11,13,17 and 19 are all primes, so we cannot eliminate any more of these, leaving the set:
{1,3,7,9} as our answer.
<span>224*12=2600(less than actual Product) 372*36=13400(greater than actual Product) 488*85=41500(greater than actual Product) 515*41=21100(less than actual Product)</span>
Answer:
56
Step-by-step explanation:
40+16=56
he formula of a distance between a point (a, b)
and a line Ax + By + C = 0:
We have the point A(-1, 7) → a = -1, b = 7
and the line y = 3x → 3x - y = 0 → A = 3, B = -1, C = 0.
Substitute:
<h3>Answer: d = √10</h3>
Answer:
3,444
Step-by-step explanation:
The art teacher had 1321 pipe cleaners for a project
She used 477 with the fourth age
A parent donated 2,600 pipe cleaners
Therefore the number of pipe cleaners she have left can be calculated as follows
= 1321-477+2600
= 844 + 2600
= 3,444
