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Ksenya-84 [330]
3 years ago
13

2x+ for x=5 help me with this

Mathematics
1 answer:
Rus_ich [418]3 years ago
6 0

Answer:

10

Step-by-step explanation:

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The product of two positive numbers is 48. Determine the two numbers if one number is triple the other
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Step-by-step explanation:

x+x(3)=48

combine like terms

4x=48

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Identify the vertex and directrix of each.<br> y = x2 + 2x - 4
sergey [27]

Answer:

See below

Step-by-step explanation:

<u>Convert equation to vertex form </u>y=(x-h)^2+k<u> by completing the square:</u>

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y+5=x^2+2x+1

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<u>Vertex:</u>

<u />(h,k)\rightarrow(-1,-5)<u />

<u>Directrix:</u>

<u />y=k-\frac{1}{4a}\rightarrow y=-5-\frac{1}{4(1)}\rightarrow y=-\frac{21}{4}<u />

<u />

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