3 years ago

Need help with this

Mathematics

1 answer:

wariber [46]3 years ago

6 0

Answer:

1. 117b - 505 > = 1952

2. +505 505 (add to both sides to remove -505)

3. 117b > = 2457

4. /117 /117 (divide by both sides to remove -117)

5. b > = 21

ANSWER: C. Greater than or equal to $21

Step-by-step explanation:

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Arisa [49]

Answer:

Step-by-step explanation:

The number in the first column is multiplied by 6 to get the number in the second column. 6 times 6 = 36.

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3 years ago

Find the equation of the axis of symmetry and the coordinates of vertex of the functions =2x^2+4x-3

SVEN [57.7K]

Hello,

Find the equation of the axis of symmetry is like find the maximum or minimum point of this function.

$f(x)=2x^2+4x-3\\\\\alpha=-\dfrac{b}{2a}=-\dfrac{4}{4}=-1\\\\$

The equation of the axis of symmetry is then : $x=-1$

$\beta=f(\alpha)=2(-1)^2+4(-1)-3=2-4-3=-5$

Coordinates of vertex : $(\alpha,\beta)=(-1;-5)$