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3 years ago

Let p(x)=3x-7. If p(x)=0,find x. A. -7

Mathematics

1 answer:

Misha Larkins [42]3 years ago

4 0

Answer:

Step-by-step explanation:

0=3x-7

0=3x+7

7=3x/3

7/3=x

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Flying object hazard are specially dangerous when using power-actuated tools because

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The tools couldn't have made the proper measurments

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3 years ago

The function f(x)=-(x-3)^2 +9 can be used to represent the area of a rectangle with the perimeter of 12 units, as a function of

Ivenika [448]

Maximum area of the rectangle is $9cm^{2}$

<u>Explanation:</u>

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Considering the dimensions to be in cm

$f(x) = -(x-3)^{2} +9\\f(x) = -(x^{2} +9 - 6x)+9\\f(x) = -x^{2} +6x\\f'(x) = -2x+6\\-2x+6 = 0\\2x=6\\x=3cm\\\\$

Putting the value of x = 3

$Perimeter = 2(x+b)\\12 = 2(3+b)\\6 = 3+b\\b= 3cm$

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Therefore, maximum area of the rectangle is $9cm^{2}$

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3 years ago

B) Select the equation with roots 0 and 3

Firlakuza [10]

Answer:

Your answer would be C.

Step-by-step explanation:

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3 years ago

Read 2 more answers

Which of the following best describes the graphs below?

Sati [7]

Answer:

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4 years ago

Decrease £1280 by 60%

klemol [59]

Hi rainy here !!! so lets see lets set up your problem like this

X/1280 = 60%/100 so lets cross multiply

100 times X =100X

60 times 1280 = 76800

100X=76800 now lets divide each side by 100

100 divided by 100 = 0

76800 divided by 100 = 768

X=768

So now we have to subtract to get the total amount so 1280 minus 768 = 512

512 is your answer :)

Hope I helped if u have any questions on how I did your problem feel free to message me or comment on my page bye !!!

Love ~Rainy~

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4 years ago