One solution
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Answer:
Either the fraction 81/4 or the decimal number 20.25 (which is equivalent to that fraction). The answer format will depend on what your teacher wants.
Step-by-step explanation:
The x coefficient is -9. When you cut that in half you get -9/2. Squaring this fraction leads to (-9/2)^2 = 81/4 = 20.25
Answer:
<h2>B) The x-intercepts are -1/2 and 5,</h2><h2>and the y-intercept is -5.</h2>
Step-by-step explanation:
The intercept form of a quadratic equation y = ax² + bx + c:
We have the equation:
Therefore
Answer:
(a) -20 1/2
Step-by-step explanation:
The proportion can be solved using "cross multiply" as the first step. This eliminates the fractions and turns it into a linear equation.
2/7 = -5/(x +3) . . . . . given
2(x +3) = -35 . . . . . . multiply by 7(x +3)
2x = -41 . . . . . . . . . simplify, subtract 6
x = -20 1/2 . . . . . . divide by 2
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