Answer:
3?
Step-by-step explanation:
The foci of the hyperbola with equation 5y^2-4x^2=20 will be given as follows:
divide each term by 20
(5y^2)/20-(4x^2)/20=20/20
simplifying gives us:
y^2/4-x^2/5=1
This follows the standard form of the hyperbola
(y-k)²/a²-(x-h)²/b²=1
thus
a=2, b=√5 , k=0, h=0
Next we find c, the distance from the center to a focus.
√(a²+b²)
=√(2²+(√5)²)
=√(4+5)
=√9
=3
the focus of the hyperbola is found using formula:
(h.h+k)
substituting our values we get:
(0,3)
The second focus of the hyperbola can be found by subtracting c from k
(h,k-c)
substituting our values we obtain:
(0,-3)
Thus we have two foci
(0,3) and (0,-3)
The 31.31% of the $54.6 Billion was spent.
for the percentage solution
x%=(amount spent on veterinary/ total amount) *100
Calculation:
let "x" be the percent of $54.6 billion spent on veterinary and total amount spent is $17.1 billion.
putting values in above formula
x%=(17.1/54.6)*100
x%=(0.3131)*100
x%=31.31
The 31.31% of the $54.6 Billion was spent.
Learn more about the percentage here:
brainly.com/question/14091961
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Answer:
AD = 13
Step-by-step explanation:
Area of trapezoid ABCD
Answer:
17.4 cm²
Step-by-step explanation:
base = 3x2.6x0.5 = 3.9 cm²
3 sides = 3(3)(3)(0.5) = 13.5 cm²
13.5 + 3.9 = 17.4 cm²
