Answer:
Step-by-step explanation:
Review the standard equation of a circle with center at (h, k) and radius r:
(x - h)^2 + (y - k)^2 = r^2
A point on (4, -2) has the radius r^2 = (4)^2 + (-2)^2, or r^2 = 20, or r = 2√5. Knowing the center is at (0, 0), we can write:
x^2 + y^2 = 20, or x^2 + y^2 = (2√5)^2
F(X)=18x+11
f(6)=18*6+11
f(6)=108+11
f(6)=119
Answer:
0.9 × 81 is greater
Step-by-step explanation:
Since one of the factors is the same in both problems, and all numbers are positive, the greatest result will obtain from the problem with the largest factor that is different.
0.90 > 0.75 ... so the product 0.90 × 81 is greater than 0.75 × 81
Answer: y=4
Step-by-step explanation:
This is a 45-45-90 triangle. It is also a special triangle. The hypotenuse is x√2. X is sommon through all 3 sides. The legs of the triangle are x in length each.
Looking at the picture, we see the hypotenuse is equal to 4√2. We can set this equal to the hypotenuse to find what x is.
4√2=x√2
x=4
Since we know that the legs of the triangle are both equal to x, we knoe that y=4.
8 / 6.403 = 1.249...
nearest tenth = 1.2