Fraction of black pens = 2/ (2 + 5) = 2/7 answer
Answer: $12
Step-by-step explanation: $6 x 2 = $12
Hope this helps!
Answer:
x=\frac{6-y-z}{3}
Step-by-step explanation:
Given that the hyperbola has a center at (0,0), and its vertices and foci are on y-axis. This, the equation of the hyperbola is of the form
x²/a²-y²/b²=-1 (a>0, b>0)
In the equation, vertices are (0, +/-b) .
Thus,
b=60
Foci (0,+/-√(a²+b²))
thus
√(a²+60²)=65
hence solving for a²
a²=65²-60²
a²=625
a²=25²
hence the equation is:
x²/25²-y²/60²=-1
Answer:
b
Step-by-step explanation:
