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Answer:
x^2+x + 1/4
Step-by-step explanation:
x^2+x
Take the coefficient of x
1
divide by 2
1/2
Square it
(1/2)^2 = 1/4
Add this to make a perfect square trinomial
Answer:
60men
Step-by-step explanation:
300 men - 15 days - 1 work
men? - 15 days - 1/5 of work
When 1 man does 1/5 of work,
how many days needed = (15 × 1/5) × 300 = 900days
Men needed to complete 1/5 work in 15 days = 900 ÷ 15 = 60men
Answer:
As x increases, y decreases and then increases
Step-by-step explanation:
You need only understand your own description of the graph:
begins above the x-axis, extends below the x-axis, and ascends above the x-axis
This is a description of <em>decreasing</em>, then <em>increasing</em>:
As x increases, y decreases and then increases