Answer:
40
Step-by-step explanation:
Given problem:
x² - y²
x+ y = 10
x - y = 4
Solution:
Using the concept of differences of two squares;
x² - y² = (x + y)(x - y)
So;
x² - y² = 10 x 4 = 40
Well, the cheap answer is
f(x) = -3| x - 1 | is really just f(x) = -3| x - 1 | + 0.
now, what value of "x" makes the absolute value expression to 0?
well, let's just set it to 0 and check,
x - 1 = 0
x = 1
so if "x" ever becomes 1, the | x - 1| will turn to 0, therefore, the vertex is at
f(x) = -3| (1) - 1 | + 0 --------------> ( 1, 0 )
Answer:
Carl's checked bags way 15.5 kilograms each.
Step-by-step explanation:
35-4=31 -> 31÷2=15.5
Answer:
13
Step-by-step explanation:
when the signs are equal or same the result is positive
(-)*(-)= (+)
Answer:
300
Step-by-step explanation:
An adult blinks
450 in 30 minutes
900 in 60 minutes (multiply 2 on both sidds)
A 12-year-old blinks
150 times in 15 minutes
600 times in 60 minutes (multiply 4 on both sides)
Difference:
900 - 600 = 300.
An adult blinks 300 more times.