Provide an appropriate response.Suppose you want to solve the following problem. A teacher can grade 7 essays in 2 hours. At this rate, how many essays will she be able to grade in 5 hours? Which of the following proportions will give the correct answer?(i) 
= 
(ii) 
= 
(iii) 
style="vertical-align: -17.0px;" /> = 
(iv) 
= 
A. (i) and (iv)
B. (i) only
C. (iii) only
D. (ii) and (iv)
Answer: A
Mathematics
You might also like to view...
The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = cos(4t)i + 2ln(t - 9)j - 
k
A. v(0) = -4i - 
j
B. v(0) = 4i - 
j
C. v(0) = -
j
D. v(0) = 
j
Mathematics
Factor.z2 - 36
A. (z + 6)2 B. (z - 6)2 C. (z + 6)(z - 6) D. prime
Mathematics
Divide.
A. 15 B. 1 C. 0 D. 5
Mathematics
Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
Mathematics