Hmmmmmm
Let me think for a second
Answer; 17, 18 and 19
Explanation:
Number = x , x + 1 , x + 2
x + x + 1 + x + 2 = 54
3x + 3 = 54
3x = 51
x = 17
x = 17
x + 1 = 18
x + 2 = 19
Let's say Mary's brother's age is x and Mary's age is y
(1) x = 3y - 5
(2) x + y = 39
Now if we substitute equation (1) into equation (2) we get:
3y - 5 + y = 39
4y = 44
y = 11
Therefor Mary is 11 years old
Answer:
6*10^-3 > 5*10^-3
Step-by-step explanation:
0.006>0.005, therefore, 6*10^-3>5*10^-3
The vertex form: y = a(x - h)² + k
y = ax² + bx + c then h = -b/2a and k = f(h).
y = x² - 12x + 8
a = 1; b = -12; c = 8
h = -(-12)/(2·1) = 12/2 = 6
k = f(6) = 6² - 12·6 + 8 = 36 - 72 + 8 = -28
Answer: y = (x - 6)² - 28.
