The dimensions are 6cm and 4cm
m = ρ v
m = (0.492 g / mL) * 163.5 mL
m = 80.442 g
rounded to nearest hundredth:
m = 80.44 g
Well the quadratic formula is just:
x = -b + and - the square root of b^2 - 4ac all divided by 2a. You just plug in numbers and get an answer for x.
Answer:
25(a-2)(a+2)
Step-by-step explanation:
25a^2 -100
We can factor out 25
25(a^2 -4)
a^2 -4 is the difference of squares a^2-b^2= (a-b)(a+b)
where a =a and b=2
a^2 -4 = (a-2)(a+2)
25a^2 -100 = 25(a-2)(a+2)
To solve this, you need to subtract 28 from both sides, then solve.
y=x^2+3x-28
The x-intercepts are (-7,0) and (4,0)