Using a dot product, calculate the work done in the given situation.A person weighing 171 pounds walks 6 feet up a ramp inclined at 25°.
A. 1026 ft-lb
B. 433.6 ft-lb
C. 929.9 ft-lb
D. No work is done
Answer: B
Mathematics
You might also like to view...
Simplify the complex rational expression.
A. 
B. 
C. 
D. 
Mathematics
Complete the square for the binomial. Then factor the resulting perfect square trinomial.x2 + 7x
A. x2 + 7x + 14 = (x + 7)2
B. x2 + 7x + 
= 
2
C. x2 + 7x - 
= 
2
D. x2 + 7x + 
= 
2
Mathematics
Use the product rule to simplify the expression.y6 ? y4 ? y-4
A. y6 B. y-96 C. y8 D. y96
Mathematics
Find the measure of each marked angle.
A. 69° and 69° B. 69° and 21° C. 78° and 78° D. 69° and 111°
Mathematics