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3 years ago

Solve for x^4 - 17x^2 + 16 = 0 Select all possible solitions

Mathematics

1 answer:

miskamm [114]3 years ago

5 0

Step-by-step explanation:

4-17x^2+16=0 s

Calculate multiply

20-17x^2=0

Reoder the term

-17x^2+20=0

Calculate the discriminat

D=0^2-4x(-17)x20

Simplify

D=1360

The quadric equation has 2 real solutions

So your Solution is :

2 real solutions

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How do you do this? I am really confused

german

Answer:

Step-by-step explanation:

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2 years ago

If a printer prints 28 copies in 1 minute how many would it print in 3 minutes and 45 seconds?

Wittaler [7]

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using cross products

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3 years ago

Rename the number 9,200 hundreds

MissTica

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3 years ago

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3 years ago

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Andrew wants to measure the height of a traffic light. He walks exactly 20 feet from the base of the traffic light and looks up.

slava [35]

Answer-

The height of the traffic light is 21.8 feet.

Solution-

As shown in figure, we can see the right triangle formed from the situation,

From the question,

BC = the distance walked by Andrew from the traffic light = 20 feet

Height of Andrew's eye = 5 feet

Height of the traffic light = AB + Height of Andrew's eye

From the properties of triangle,

$\Rightarrow \tan \theta =\frac{Height}{Base}$

$\Rightarrow \tan C =\frac{AB}{BC}$

$\Rightarrow AB=\tan C\times BC$

$\Rightarrow AB=\tan 40\times 20$

$\Rightarrow AB=16.8$

Therefore, height of the traffic light = AB + Height of Andrew's eye = 16.8+5 = 21.8 feet

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3 years ago

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