42 square ft because 4 times 3 is 12 and 10 times 3 is 30. 30+12=42
Answer: D
Explanation: Apply the pythagorean theorem (a^2 + b^2 = c^2) to get 11^2 + b^2 = 18^2. From that you can solve for b and you get the square root of 203.
Hope this helped! :)
Answer:
148^2
Step-by-step explanation:
2(lb+bh+lh) = 2(4*5+5*6+4*6)=148 in^2
Answer:
288J
Step-by-step explanation:
recall the formula for kinetic energy
KE = (1/2) mv²
where m is the mass (= 4kg) and v is the velocity(=12 m/s)
hence
KE = (1/2) (4)(12)² = 288J
Answer:
b
Step-by-step explanation:
