3 years ago

Pleeeeeas helpp mehh pleeeeeas pleeeeease......

Mathematics

1 answer:

Law Incorporation [45]3 years ago

8 0

Answer:

Step-by-step explanation:

Each time she sells the burger she earns $10

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(x-1)(x-3)(x+5)(x+7)=297

mihalych1998 [28]

First simplify the expression into polynomial form,

$(x-1)(x-3)(x+5)(x+7)=297$

$x^4+8x^3-10x^2-104x+105=297$

$x^4+8x^3-10x^2-104x-192=0$

Now factor into,

$(x-4)(x+8)(x^2+4x+6)=0$

Which means the solutions are,

$x-4=0\implies\boxed{x_1=4}$

$x+8=0\implies\boxed{x_2=-8}$

and then two complex solutions because determinant of the third factor $D\lt0$ ,

$x^2+4x+6=0$

$x^2+4x+4=-2$

$(x+2)^2=-2\implies\boxed{x_3=i\sqrt{2}-2},\boxed{x_4=-i\sqrt{2}-2}$

Hope this helps :)

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Which point represents the x-intercept of this exponential function?

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Answer:

Step-by-step explanation:

the answer is unknown because there is no answer to that question and if there was it would be odd an would not make sence so that is a true of false question

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A test driver has to drive a car on a 1-mile track for two rounds in a way, that his average speed is 60 mph. On his first round

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(40+x)/2=60

40 +x = 120

x = 80

check :

40+80 = 120

120/2 = 60

so his second round needs to be 80 mph

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"Harry had 500 pennies in a jar. He sorted the pennies into 25 different stacks. Each stack had the same number of pennies. How

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Answer:

Step-by-step explanation:

To find out how many pennies were in each stack, you would have to divide 500 by 25. This gives you 20.

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Pleeeeeas helpp mehh pleeeeeas pleeeeease......​

Pleeeeeas helpp mehh pleeeeeas pleeeeease......