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Question
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x² - 49
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Form into 2 perfect squares
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x² - 7²
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Formula
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a² - b² = (a + b) (a - b)
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Apply the formula
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x² - 7² = (x + 7)(x - 7)
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Answer: (x + 7)(x - 7)
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Answer:straight line angle =180 degree as we know
there are three angles in straight line means sum of all angles must = 180
15+a+38=180
so 53+a=180
so a=180-53
ans a=127 degree
Answer:
$5,306.04
Step-by-step explanation:
Vertex is at (-3,-1) so expressing the quadratic function in vertex form:
f(x) = a(x -(-3))^2 + (-1)
= a(x+3)^2 -1
also note when x=0, f(0)=8
8 = a(3)^2 -1 = 9a-1
so a=1
f(x) = (x+3)^2 - 1
= x^2 + 6x + 9 -1
= x^2 +6x + 8
Answer:
$450
Step-by-step explanation:
The sale price is computed from ...
... sale price = original price - discount
where ...
... discount = (original price) × 26%
Putting these together, we get ...
... sale price = (original price) - 0.26×(original price)
... sale price = (original price) × (1 - 0.26) = 0.74×(original price)
Dividing by 0.74, we find ...
... original price = (sale price)/0.74
... $333/0.74 = $450 = original price
