Answer:
2x -12
Step-by-step explanation:
Multiply -3 times x and -3 times 4 to get -3x and -12. Then combine 5x -3x to get 2x - 12
Answer:
<h2><u><em>
11.11% (approx.)</em></u></h2>
Step-by-step explanation:
<u><em>Given,</em></u>
Cost Price (C.P.) of a car bought by Hassan = $1800
Selling Price (S.P.) of the car = $2000
<u><em>So,</em></u>
Profit earned by Hassan
= S.P. - C.P.
- <em>[On substituting their value]</em>
= $2000 - $1800
- <em>[On subtracting]</em>
= $200
<u><em>Therefore,</em></u>
The profit percentage is
= × 100
- <em>[On substituting their value]</em>
= × 100
- <em>[On simplifying]</em>
= × 100
- <em>[On dividing 100 by 9]</em>
= %
OR
= 11.11% (approx.)
<u><em>Hence,</em></u>
<u><em>Required percentage profit of Hassan is 11.11% (approx.)(Ans)</em></u>
Answer:
The equation is ( x² / 9 ) - ( y² / 7 ) = 1
Step-by-step explanation:
Given the data in question;
hyperbola is centered at the origin, this means h and k are all equals to 0.
Vertices: (-3,0) and (3,0)
Since y-coordinates are constant, this implies it is a hyperbola with horizontal transverse axis.
h - a = -3
0 - a = -3
a = 3
Foci: (-4,0) and (4,0)
h - c = -4
0 - c = -4
c = 4
we know that, for a hyperbola
c² = a² + b²
so
⇒ ( 4 )² = ( 3 )² + b²
16 = 9 + b²
b² = 16 - 9
b² = 7
So the equation for the hyperbola will be;
⇒ ( (x-h)² / a² ) - ( (y-k)² / b² ) = 1
so we substitute
⇒ ( (x-0)² / 3² ) - ( (y-0)² / 7 ) = 1
⇒ ( x² / 3² ) - ( y² / 7 ) = 1
⇒ ( x² / 9 ) - ( y² / 7 ) = 1
Therefore, The equation is ( x² / 9 ) - ( y² / 7 ) = 1
Answer: 1.25 or 1 1/4 pts