When:
a = b = 0 we have point (0,0).
a = 0 and b ≠ 0 vertical line segment from (0, -b) to (0, b)
a ≠ 0 and b = 0 horizontal line segment from (-a, 0) to (a, 0)
a ≠ 0 and b ≠ 0 a ≠ b ellipse
a ≠ 0 and b ≠ 0 a = b circle
Answer:
Val ac cost 
dollar for the summer month of 30 days
Step-by-step explanation:
Given
Electricity consumed in a day by running AC is 
watts-hr
Cost of electricity is 
cents/kilowatt-hr
Cost of electricity consumed in a month
dollars
Answer:
$90.83
Step-by-step explanation:
Because each yard of fabric is $8.65, and she's buying 10.5 yards, you need to multiply 10.5 by 8.65 to get 90.825. Because you then have to round that, the answer turns into 90.83 (as the 5 in the 1000th place makes you round up).
Answer:
See answers below
Step-by-step explanation:
Since both trinagles asre similar hence the ratio of the similar sides are equal.
From both triangles;
y + 7 = 3y - 7
y - 3y = -7-7
-2y = -14
y = 14/2
y = 7
FE = 3y - 17
FE = 3(7) - 17
FE = 21 - 17
FE = 4
AB = y'+7
AB = 7 + 7
AB = 14
Similarly
3x+20 = 5x - 80
3x -5x = -80-20
-2x = -100
x = 100/2
x = 50
<A = 3x + 20
<A = 3(50) + 20
<A = 150 + 20
<A = 170degrees
Hence x= 50 and y = 7
I assume this V = $220,000 * (1.038) is for one year = $228,360 +(5*1.038) simple interest = V =$<span>228,365.19</span>
