The sum of n terms is given from the first term and the common ratio by

For your given values of a1=-11, r=-4, n=8, the sum of 8 terms is

Answer:
yes, it is a right triangle
Step-by-step explanation:
the other two angles are 35 and 55 degrees
Answer:
1 : 80
Step-by-step explanation:
So you want to check Length of model : Length of real boat
50 cm : 40 m
But since the units don't match, make 40 m into 4000 cm
50 cm : 4000 cm
Divide both sides by 50 and you get
1 : 80
Answer:
500 total pages. 190 pages with no pictures.
Step-by-step explanation:
310 is 0.62 of the total pages. 310 divided bye 0.62 is 500.
500 minus 310 is 190 pages with no pictures.
Hope this helps!