Trong không gian Oxyz, cho mặt phẳng (P): x + y – z – 3 = 0 và hai điểm A(1;1;1) và B(-3;-3;-3). Mặt cầu (S) đi qua A, B và tiếp xúc với (P) tại điểm C. Biết rằng C luôn thuộc một đường tròn cố định, bán kính của đường tròn đó bằng?

Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.

Which of the following is the correct ratio for converting kilograms to grams

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2