According to your description, you can simply plug in all the numbers:
d(47) = 2.15 * 45^2 / (58.4*0.34) = 219.27 m
Alright, so we'd use the combinations with repetition formula, so we choose from 4 schools to distribute to and distribute 8 blackboards. It's then
( 8+4-1)!/8!(4-1)!=11!/(3!*8!)=165
For at least one blackboard, we first distribute 1 to each school and then have 4 blackboards left, getting (4+4-1)!/4!(4-1)!=7!/(4!*3!)=35
Answer: 138
Step-by-step explanation:
Answer:
A triangle without any congruent sides, or all sides ae different, is called a scalene triangle. I don't know what you mean by sketch one out.
Answer:
1.8 + 0.75
Step-by-step explanation:
1.80
+0.75
= 2.55
I think. :)