Answer:
The coordinates of the center of the circle is (-1,-0.5)
Step-by-step explanation:
The coordinates of the center are only the midpoint coordinates of the endpoint
Mathematically, that will be;
(x,y) = (x1 + x2)/2, (y1 + y2)/2
= (-4+2)/2, (4-3)/2
= (-2/2),(-1/2)
= (-1, -0.5)
Just simply subtract
645-123= 522
Key Word- How many more means to subtract
So 522 is your answer
Answer:
P= -0.05q+22
Step-by-step explanation:
To find the linear equation that relates price with quantity demanded, first we must find the slope. Because the independent variable is the quantity demanded and the dependent variable is the price, the slope represents how the price changes when there is an extra unit of quantity demanded. The problem gives this information: "for every additional card (extra unit) they need to drop the price by $0.05". The slope (m) in this case is negative because an extra unit, reduces the price: -0.05
The second step is to use this formula:
Y-y1= m*(X-x1)
y1 and x1 is a point of the demand curve, in this case it is y1= $7 and x1=300
Y-$7= -$0.05*(X-300)
Y-7=-0.05X+15
Y= -0.05X+15+7
Y= -0.05X-22
Price= -0.05 quantity demanded +22
Step-by-step explanation:
The speed of sound has nothing to do with "sea level" and sound pressure and without the medium air there is no speed of sound. In SI units with dry air at 20°C (68°F), the speed of sound c is 343 meters per second (m/s). This also equates to 1235 km/h, 767 mph, 1125 feet per second (ft/s), or 666 knots.
Answer:
44
Step-by-step explanation:
50% is half of the whole
88/2=44