Solve.5x + 2y + z = -112x - 3y - z = 177x + y + 2z = -4
A. (-3, 0, 4)
B. (3, 0, -4)
C. (0, 6, -1)
D. (0, -6, 1)
Answer: D
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Given ?QRS and point T so that TQ ?QR, TS ? RS and TS = ST
(a) ?TRS? ?TRQ. (b) T is on the bisector of ?QRS. (c) RQ ? RS. (d) All of these are correct. (e) None of these is correct.
The Falls Incline Railway in Niagara Falls, Ontario, Canada is an inclined railway that was designed to carry people from the City of Niagara Falls to Queen Victoria Park. The railway is approximately 180 feet long with a 42% uphill grade (see figure). Select the graph of the equation of the line that models the railway track.
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A. ?
B. ?
C.
D. ?
E. ?
Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1
Solve.The table shows the number of restaurants in five different cities. CityNumber of Restaurants Carlsbad 495 Potters Vale 305 Little Heath 248 Edgbaston 334 Barrow 250What is the total number of restaurants in the first three cities listed in the table?
A. 1148 B. 1632 C. 1048 D. 1038