Answer:
4k=-2k+6-18
6k= -12
Step-by-step explanation:
Because C is the centroid, therefore:
Segments PZ = ZR; RY = YQ; QX = XP<span>
<span>A.
If CY = 10, then</span></span>
PC = 2*CY = 20<span>
PY = PC + CY = 20 + 10 = 30
Answer: PC = 20</span> PY = 30
B.
If QC = 10, then
ZC = QC/2 = 5<span>
ZQ = ZC + QC = 5 + 10 = 15
Answer: ZC = 5</span> ZQ = 15
<span>C.
<span>If PX = 20
Because the median RX bisects side PQ, therefore PX = QX = 20
PQ = PX + QX = 40
Answer: <span>PQ = 40</span></span></span>
Answer:
. The sales manager gathered information on the numbers of sales calls made and the number of copiers sold for a random sample of sales representative. Is there a positive correlation between calls made and copiers? Test at the 0.05 level of significance. Determine the 90% prediction interval for 60 number of calls made. * Calls, X Sold. Y 20 40 20 50 40 60 50 90 40 80 20 40 40 60 30 60
8=m-7
add 7 to both sides
m=15
15400=1200 (1+0.04)^t
Solve for t
T=log(15,400÷1,200)÷log(1+0.04)
T=65 years