Answer:
Step-by-step explanation:
f(x)=2x²+4x-1
=2(x²+2x+1-1)-1
=2(x²+2x+1)-2-1
=2(x+1)²-3
domain: all real values
Range:[-3,∞)
Answer:
Length of shadow (Base) = 8 ft
Step-by-step explanation:
Given:
Height of man (Perpendicular) = 6 ft
Length from head to shadow (Hypotenuse) = 10 ft
Find:
Length of shadow (Base)
Computation:
Base = √Hypotenuse² - Perpendicular²
Base = √10² - 6²
Length of shadow (Base) = 8 ft
Answer:

Step-by-step explanation:
The given statement is;: 'I think of a number, multiply it by 3, add 4 & square the result.'
At first, let's take the unknown number as 'x' . (asked in the question).
So, the number we think about = x
Now, we need to multiply it by 3. So,
In the next part, we need to add 4 to it so,
Now, by squaring the result, we'll get the expression as,
<u>____________</u>
Hope it helps!

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