2 years ago

80% of x is 40. What is the value of x? Please help hurry!!

Mathematics

1 answer:

butalik [34]2 years ago

5 0

Answer:

The answer would be 50

Step-by-step explanation:

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What is the simplest radical form of the expression? (x4y7)23

LUCKY_DIMON [66]

Answer:

23 x^ 4 y^ 7

Step-by-step explanation:

4 0

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