Step-by-step explanation:
1. x^2 + 10x + 25
2. x^2 - 25
.........
6 : 24 x : 20 Cross multiply.
The domain of the function is possible values of independant varaible such that function is defined or have real values.
So the expression
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is not defined for x = -6 and for x = 1, as expression becomes undefined for this values of x (Denominator becomes 0).
So answer is,
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Option B is correct.
3 x 25 = 75
4 x 12 = 48
75 - 10 = 65
65 + 48 = 113
Answer: 113 markers and crayons or 65 crayons and 48 markers
Answer:
Sarah is incorrect.
Step-by-step explanation:
By plugging 10 in as 'x' to the equation, we get y=21+(2*10). 2 x 10 is 20, and 20 + 21 is <em>not</em> 42 - it's 41. So, Sarah is incorrect.