First off, remember that finding the x-intercepts means setting y equal to zero and solving for the x-values, so this question is really asking you to "Solve 4x2 – 2x – 5 = 0".
Now, let's start the completing-the-square process. To begin, we have the original equation (or, if we had to solve first for "= 0", the "equals zero" form of the equation). In this case, we were asked for the x-intercepts of a quadratic function, which meant that we set the function equal to zero
Answer:
Step-by-step explanation:
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Answer: first picture is for y=-5/3x + 3
Step-by-step explanation:
Practice flute: 45 minutes
Eat: 15 minutes
Watch tv: 30 minutes
Ends: 6:00 pm
45 + 15 + 30 = 90 minutes = 1 hour and 1/2
Katie started to practice the flute 1 1/2 hours before 6, so she started at 4:30.
<span>We calculate the area of a rectangle with the equation
A = LW*1/2
A = </span><span>The area of a rectangle
L = </span>the height of the triangle
W = <span>the base of the triangle
</span><span>If the equation is one unknown to solve them quickly .
</span><span>A = 128sq.ft
L = ?
W = 2L
</span><span>substitute values into the formula
</span><span>
A = L * W *1/2
128sq.ft = Lft. * (2Lft) *1/2
128 = L</span>²
<span>L = </span>√128 = 8√2<span>
W = 2L = 2*8</span>√2<span> = 16</span>√2<span>
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