Answer:
Circumference: 43.9822971503 or 43.98
Area: 153.9380400259 or 153.94
Step-by-step explanation:
So basically for the circumference you use C= d×π which means that the circumference is equal to the diameter (radius times 2) multiplied by pi! For the area you use the formula A= r^2×π which means the radius squared (radius times itself) multiplied by pi! By the way you can also round pi down to 3.14 to make it easier. Anyway I hope this helps!!
There are two of them:
1). (n * a) means n + n + n + n + n + n + n + . . . 'a' times.
2). (n * a) also means a + a + a + a + a + a + a + a + . . . 'n' times.
Answer:
2
Step-by-step explanation:
= 4+8/2×(6-3)
= 12/2×6-2×3
= 12/12-6
= 12/6
= 2
I don't exactly understand your question, mate.
Answer:
42 and 63
Step-by-step explanation:
We have two numbers that

and
that

Subsitue



So plug that back in to first equation so we get


42 and 63 are the numbers.