Answer:
Step-by-step explanation:
2 hours/x speed
2.25 hours/x+5 speed
.25 hours/5 speed
20 mph
20 miles/1 hour
40 miles/2 hours
Answer:
(2x + 7yj)(2x - 7yj)
Step-by-step explanation:
Both 4x^2 and 49y^2 are perfect squares, and
4x^2 + 49y^2 is the sum of two squares.
There is a formula for factoring the difference of two squares:
a^2 - b^2 = (a - b)(a + b) (all real numbers here), but unless imaginary numbers are allowed, there's no formula for factoring the sum of two squares.
If imaginary numbers are allowed, then a^2 + b^2 factors into
(a + jb)(a - jb).
Following this pattern, 4x^2 + 49y^2 factors into (2x + 7yj)(2x - 7yj)
a^2 + b^2 = (a + b)(a
Answer:
I gotchu
Step-by-step explanation:
3/7. have a good day child good luck on your homework:)