If 7 minutes is $2.45, then 13 minutes is $4.55 cuz 1 minute is 0.35 cents
Answer:
B 41.4
Step-by-step explanation:
complete Pythagoras for general triangles :
c² = a² + b² - 2ab×cos(C)
with "c" being the side opposite of the angle C.
=>
8² = 10² + 12² - 2×10×12×cos(C)
64 = 244 - 240×cos(C)
240×cos(C) = 244 - 64 = 180
cos(C) = 180/240 = 18/24 = 3/4 = 0.75
C = 41.40962211... ≈ 41.4
Answer:
What is the difference between entering a formula and entering data ??
Answer:
a) (-2,2), (-1,-1), (1,-1), (3,7)
b) x=1.4
