TO find perimeter you add all sides. But to find the totaly of each side, you will divide. So a triangle has 3 sides, so you divide 45 by 3 to get the sides length of:
15 cm each
~hope this helped :)
7 is digit for hundred thousands and 6 is for ten thousands so the answer is 800,000
Answer:

Solution,
Volume of cone=270 pi cm^3

Volume of semisphere:

Total:

hope this helps...
Good luck on your assignment..
Answer:
-26 is the y-intercept
Step-by-step explanation:
since you already have the slope solved, you just have to plug in one of the two coordinate pairs. i plugged it (4,6) since it didnt have any negatives to work with. 6 should be where y is and 4 is x. you now should solve it as a normal equation. it gave me -26.