Answer:
Answer: D- point and line
Step-by-step explanation:
Answer:
D) 900
Step-by-step explanation:
So I'm assuming the first part is jsut excess information
What we need to find is the sum fo the first 30 odd numbers -->
to simply calculate this, 1+3+5+7 ... +57+59, we can group the first and last numbers into pairs and so on. this gives us 60 as our first known number and 30/2= 15 pairs. -->
now we multiply 60x15 => 6x15 = 90 --> add 1 zero to the end and you get 900
Hope this helps!
Answer:
86=8h
Step-by-step explanation:
Answer:
Step-by-step explanation:
As 2 and 7 are the only prime divisors of both and we know that both can be written as:
Where is the set of all natural numbers adding the zero (careful because this part is important as I'll explain next).
We also know that 14 divides both numbers and that is actually the greatest common divisor between them. So we can rewrite a and b as follows:
Why do I write them like this? Because this way is easier to observe that if and were both greater than zero, then 28 would divide both hence 14 wouldn't be their g.c.d.. Likewise, if and were both greater than zero, then 98 would divide both and once again, 14 wouldn't be their g.c.d.
So either of them has to be equal to zero. And then we have that
All we have left to do is find the possible values for and so that and that only happens if and
Answer:
1st option is correct .........