When 2 tangents are joined to a circle, the tangents are of equal length so the triangle is isosceles. Then again it is possible for it to be equilateral.
From the first two inference, it takes her phone 1 minute to charge 2% i.e 1 minute of charge = 2% of battery.
Therefore; charging from scratch,
1 min = 2%
x mins = 50%.
using cross multiplication,
x mins = (50% × 1 min) ÷ 2%.
x = 25 mins.
For 90%, applying the same formula,
y min = (90% × 1 min) ÷ 2%
y = 45 mins.
So from zero percent, it will take Dana's phone 25 minutes to charge to 50% and 45 minutes to charge to 90%.
Answer: (B) 189 4 cm3 is the correct answer
Step-by-step explanation:
Answer: The answer is 25
Step-by-step explanation:
c=a2+b2−−−−−−√
a=72+242−−−−−−−√
c=49+576−−−−−−−√
c=625−−−√
c=25
1/2 is equal to a half 2/15 + 1/3 = 7/15 and 6/7 - 1/3 = 11/21
7/15 is closer to a half to does to 1/2
