Answer:
Step-by-step explanation:
n ≥ -2 + 9
n ≥ 7
Answer:
Plan II is more favorable because the total amount to pay is less and the time to pay is greater than Plan I.
Step-by-step explanation:
<u><em>The question in English is</em></u>
Plan: "MY AUTO FOR TAXI"
Mr. Alberto decides to buy a car in order to perform taxi services. The price of the vehicle is S/45 000, but only S/20 000 is available. He then decides to finance the missing money through a bank. If between the two loan plans offered, you must choose one:
Which of the two options would you recommend to Mr. Alberto?
we know that
The compound interest formula is equal to
where
A is the total amount due
P is the amount owed
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
Plan I
substitute in the formula
Plan II
Compare
Plan I ----> t=2 years A=$27,562.50
Plan II----> t=3 years A=$27,318.18
therefore
Plan II is more favorable because the total amount to pay is less and the time to pay is greater than Plan I.
Answer:
A) 60 miles/hour
Step-by-step explanation:
We know that
2π/3 radians-------> convert to degrees-----> 2*180/3---> 120°
120°=90°+30°
Part a) Find <span>sin(2π/3)
</span>sin(2π/3)=sin (90°+30°)
we know that
sin (A+B)=sin A*cos B+cos A*sin B
so
sin (90°+30°)=sin 90*cos 30+cos 90*sin 30
sin 90=1
cos 30=√3/2
cos 90=0
sin 30=1/2
sin (90°+30°)=1*√3/2+0*1/2-----> √3/2
the answer part a) is
sin(2π/3)=√3/2
Part b) Find cos (2π/3)
cos (2π/3)=cos (90°+30°)
we know that
cos (A+B)=cos A*cos B-sin A*sin B
so
cos (90°+30°)=cos 90*cos 30-sin 90*sin 30
sin 90=1
cos 30=√3/2
cos 90=0
sin 30=1/2
cos (90°+30°)=0*√3/2-1*1/2----> -1/2
the answer part b) is
cos (2π/3)=-1/2