Answer:
D. 0
Step-by-step explanation:
If it’s a factor then it’s 2 but if your doing a expression then it is just 2x+2
3. is C, 4. is B, 5. is A, 6. is D
Answer:
1/23
Step-by-step explanation:
The perpendicular slope will be the opposite reciprocal of the original slope so if slope of c is -23, slope of d is 1/23
Answer:
The traveller's speed is 5ft/s and the walkway speed is 3ft/s
Step-by-step explanation:
Given
Represent the traveller's speed with T and the walkway's speed with W.
When the traveller walk against the walkway, we have:
---- i.e. 2ft/s against the walkway
When the traveller walk with the walkway, we have:
---- i.e. 8ft/s with the walkway
Required
Solve for W and T
--- (i)
--- (ii)
Add (i) and (ii)



Divide both sides by 2



Substitute 5 for T in (ii)


Make W the subject


Hence, the traveller's speed is 5ft/s and the walkway speed is 3ft/s