Answer: n = 4
Step-by-step explanation: you combine the like variables which turns it into
(4y - 3)
(4y - 3) is <em>another</em> way of saying ((4 x y) - 3)
So the 4 is turned into n making it (ny - 3)
A circle’s standard form of an equation is:
(x-h)^2 + (y-k)^2 = radius^2
Plug in h and k immediately because that is something you automatically know. H and k are derived from the center of the circle. The center of the circle is (h,k). Don’t get tripped up though, your center of a circle has negative coordinates. When you have two negatives, they become positive.
So now you have:
(x+4)^2 + (y-2)^2 = radius^2
So figure out what the radius is. Use the distance formula to find out. You have a change of 5 from -4 to 1 in x. You have a change of 2 from 2 to 4 in y. Distance formula has the distance as the square root of x distance squared and y distance squared. That would mean that the distance/radius is equal to the square root of (25 + 4). 5 squared is 25 while 2 squared is 4.
The radius of the circle is equal to the square root of (29). However, looking back at the circle equation the radius should be squared for the equation. Square root of 29 squared gets you 29.
Plug that in and you get:
(x+4)^2 + (y-2)^2 = 29
.125 would be 8 as a whole number
Answer:
Step-by-step explanation:
First of all, let us lay out the problem clearly:
This can be solved using a calculator, by first simplifying the individual fractions first, to decimals, then computing the addition and subtraction.
using your calculator, punch (-50 ÷ 54), your results should be:
-50 ÷ 54 = -0.93
Next, punch ( 40 ÷ 100), you should get 0.4
Now, join the individual results together to get:
- 0.93 - 0.40 + 1.65
Finally, still using the calculator, input the values as shown:
- 0.93 - 0.40 + 1.65 = 0.32
