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VladimirAG [237]
3 years ago
8

X + 4 + 3x = 72 how did you get this answer?

Mathematics
2 answers:
mihalych1998 [28]3 years ago
5 0

Answer:

17

Step-by-step explanation:

x+3x=72-4

4x=68

x=68÷4

X=17

alexgriva [62]3 years ago
4 0
x+4+3x=72
4x+4=72
4x=72-4
4x=68
4x/4=68/4
x=17
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Find the x intercepts of the parabola with vertex (-1,-16) and y intercept (0,-15)
Arlecino [84]
<span> first, write the equation of the parabola in the required form: </span>
<span>(y - k) = a·(x - h)² </span>

<span>Here, (h, k) is given as (-1, -16). </span>
<span>So you have: </span>
<span>(y + 16) = a · (x + 1)² </span>

<span>Unfortunately, a is not given. However, you do know one additional point on the parabola: (0, -15): </span>

<span>-15 + 16 = a· (0 + 1)² </span>
<span>.·. a = 1 </span>

<span>.·. the equation of the parabola in vertex form is </span>
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<span>The x-intercepts are the values of x that make y = 0. So, let y = 0: </span>

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<span>16 = (x + 1)² </span>

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3 years ago
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Step-by-step explanation:

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3 0
2 years ago
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Veseljchak [2.6K]

Answer:

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Step-by-step explanation:

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2(x-1)\geq10\text{ or } 3-4x>15

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2(x-1)\geq10

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Add 1 to both sides:

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Subtract from both sides:

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Divide both sides by -4:  

x

Hence, our solution set is:

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5 0
3 years ago
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Answer:

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Step-by-step explanation:

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