Answer:
132
Step-by-step explanation:
12 times 11= 132 PLEASE MARK BRAINLIEST
In triangle ABC, angle B is 90° and angle A is 45° => triangle ABC is Isosceles triangle. That means side AB = BC
Also, side AC² = AB² + BC² = 2BC²
(6√2)² = 2BC² => 36*2
BC = 6
In triangle BCD, angle D is 90° and angle B is 60° => triangle BCD is semi Equilateral triangle. That means side BD = ½BC = 6/2 = 3 which is the value of X.
Good luck
Answer:
its the first one I think
Step-by-step explanation:
Vol of small ball = 4/3 pi (2.5)^3
Vol of larger on = 4/3 pi (6.5)^3
Difference = 4//3pi(6.5^3-2.5^3)
= 4/3 pi (259)
= 1085.0
one Brian's item cost: x
one Chris' item cost: x+2.5
Set up equation:
Brians amount = Chris amount
4*x = 3*(x+2.5)
solve for x:
4x = 3x + 7.5
x = 7.5
Brian's items cost $7.5 each.
Check:
Brian paid 4*7.5 = $30
Chris paid 3*10 = $30
The individual cost of Brian's items was $7.50, and the indiv. cost of Chris' items was $10.