Answer:
(a) 9
Step-by-step explanation:

substitute r = 4, t = 2

simplify

cubic of 2 is 8

simplify

Answer:
I'm not sure but i think it's 34y
Step-by-step explanation:
The answer is a.
I hope this helped
Answer:
1,560,000 mm²
Step-by-step explanation:
A=
This would make shape A's area <u>480,000</u>.
B=
This would make shape B's area <u>180,000</u>.
C=
This would make shape C's area <u>300,000</u>.
D= 1000×600 This wouls make D's area <u>600,000</u>.
Now you add up all of the areas;
480,000+180,000+300,000+600,000= 1,560,000 mm²
Answer:
8.3
Step-by-step explanation:use law of cosine
solve equation
substitute
simplify