Write the word statement as an equation. Use x to represent the unknown number. Do not solve.The sum of a number and 9 multiplied by the sum of the number and 19 is equivalent to 47 minus 28 times the number.
A. 9x(x + 19) = 47 - 28x
B. (x + 9)(x + 19) = 47 - 28x
C. (x + 9)(x + 19) = 28x - 47
D. (9x + 9)(19x + 19) = 28x - 47
Answer: B
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When directed distance is increasing, velocity is negative.
Answer the following statement true (T) or false (F)
A graph of the function f is sketched in the figure below. Use the graph to find the indicated values.
Find f(-2)
A. 4 B. 2 C. 1 D. -2
Write an equation for the hyperbola.center at (6, -8); focus at ( 6 - 
, -8); e = 
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Let 
and compute the Riemann sum of f over the interval [3, 4] , using
?
Two subintervals of equal length 
. Choose the representative points to be the right end points of the subintervals.
?
__________ sq units
?
Five subintervals of equal length 
. Choose the representative points to be the right end points of the subintervals.
?
__________ sq units
?
Ten subintervals of equal length 
. Choose the representative points to be the right end points of the subintervals.
?
__________ sq units
What will be an ideal response?