Answer:
14) 2x + 13 = 21
Step-by-step explanation:
Have a nice day! :-)
Answer:
1 C
3 A
Step-by-step explanation:
Answer:
W = 9600000 joules
Step-by-step explanation:
From the given information:
The area of the banner = 1/2 × 30 × 20 = 300 ft²
The mass of the banner = 300 × 50 = 15000 pounds
Now; the integral for the required work is:

here;
h = height of the building
F = mg = 15000g
g = 32 ft/s²
Therefore;


W = 9600000 joules
2/a= a/50
Cross multiply:
a* a= 2*50
⇒ a^2= 100
⇒ a= √100 or a= -√100
⇒ a= 10 or a= -10
Final answer: a= 10 or a= -10~
The answer you're looking for is 11.