Answer: look up triangle perimeter calculator
Step-by-step explanation:
Without any numbers this is hard to calulate
The probability is 4⋅3⋅2⋅1/10•9•8•7=(4/4)(6/0)/(10/4)=1/210 so the probability of selecting 3 red balls would be 1/210
Answer:

Step-by-step explanation:
Calculate the area of the two triangles first: 6 * 16 = 96
Then the rectangle: 10 * 16 = 160
160 + 96 = 256
Sum of complementary angles = 90
so
5x + 35 = 90
5x = 90 -35
5x = 55
x = 11
answer is A.
x = 11