That the teacher gave you extra credit
S = ut + (1/2)a(t²) Subtract ut from both sides
(1/2)a(t²) = S - ut Multiply both sides by 2
a(t²) = 2s - 2ut Divide both sides by t²
a= 2s/t² - 2u/t
a= (2S - 2ut)/t²
Answer is C) but there should be parentheses around the term (2S-2ut)
18, 42, and 27. they were all times by 2
The correct answer is D, 6x
Answer:
b
Step-by-step explanation:
(2a + ★)(2a - ★) =4a²-b²
If you substitute b for ★ in the equation. We have;
(2a + b)(2a - b) = 4a² - b²
4a² - 2ab + 2ab -b² = 4a²-b²
4a²-b²= 4a² - b².
So 'b' is correct
