3 years ago

Help I don’t understand this

Mathematics

1 answer:

bogdanovich [222]3 years ago

8 0

Answer: it is unclear

Step-by-step explanation: ask your parent or teacher now if you dont know this. this is a new system and i dont

know. try reaching your parents for a clear answer.

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Which is an x-intercept of the continuous function in the table?

azamat

Answer:

(-6,0)

(3,0)

Step-by-step explanation:

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Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x

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ANSWER

1.39

EXPLANATION

The given quadratic equation is

$0 = 2 {x}^{2} + 3x - 8$

This is the same as,

$2 {x}^{2} + 3x - 8 = 0$

Comparing to

$a {x}^{2} + bx + c = 0$

We have

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Using the quadratic formula, the solution is given by:

$x = \frac{ - b \pm \: \sqrt{ {b}^{2} - 4ac} }{2a}$

We substitute the values to get,

$x = \frac{ - 3\pm \: \sqrt{ {3}^{2} - 4(2)( - 8)} }{2(2)}$

$x = \frac{ - 3\pm \: \sqrt{ 73} }{4}$

The positive root is

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to the nearest hundredth.

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3 years ago

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a store has a sale where all shirts are sold at a discount of 20% if the regular price of the shirts is $20, how may shirts coul

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15 shirts.

Step-by-step explanation:

A 20% discount means you still pay 80% of the price.

x represents the number of shirts that can be bought.

(20 x (1-0.2) )x = 240 or (20 x .8)x = 240

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