Answer:
I think its cubic you can search it
Answer:
fourth option
Step-by-step explanation:
note that (
)(x)x) = 
= 
← factorise numerator/ denominator
= 
← cancel the common factor (2x + 1)
= 
where x ≠ 0, - 
Answer:
d ≈ 6.41
Step-by-step explanation:
Given that F is inversely proportional to d² then the equation relating them is
F = 
← k is the constant of proportion
To find k use the condition when F = 8, d = 6 , then
8 = 
= 
( multiply both sides by 36 )
288 = k
F = 
← equation of proportion
When F = 7 , then
7 = ( multiply both sides by d² )
d² × 7 = 288 ( divide both sides by 7 )
d² = 
( take the square root of both sides )
d = ± 
≈ ± 6.41
The positive value of d is 6.41 ( to 2 dec. places )
40 is the distance. You are rounding up so 40 is the nearest answer
Answer:
x≥12, x≤-4
Step-by-step explanation:
since there's an absolute value in this inequality, we have to solve it in two ways. 1. 3-(x-1) is greater than or equal to zero, 2. 3-(x-1) is smaller than zero
3-(x-1) is greater than or equal to 0
3-(x-1)≥8
3-x+1≥8
-x+4≥8
-x≥4
x≤-4
3-(x-1) is smaller than 0
-(3-(x-1))≥8
-(3-x+1)≥8
-3+x-1≥8
x≥12
