2 years ago

Solve the equation. Check your solutions when necessary.2x² − 7x = 4

Mathematics

1 answer:

prisoha [69]2 years ago

5 0

Answer:

x= -1/2 = -0.500

x=4

Step-by-step explanation:

2x^2-7x-4=0

2x^2-8x+1x-4=0

2x(x-4)+1(x-4)=0

(2x+1)(x-4)=0

2x+1=0...2x= -1.. x= -1/2 x-4=0 .. x=4

checking the solution

2(-1/2)^2-7(-1/2)=4..... 4=4

2(4)^2-7(4)=4....... 4=4

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STALIN [3.7K]

Answer 3.1

Here's the formula:

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2 years ago

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Answer:

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Step-by-step explanation:

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AND

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3 years ago

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BartSMP [9]

The closest distance up the tree where the wire reaches is 17.93 foot.

<u>Explanation:</u>

Given-

Length of the wire, L = 12 foot

angle, Ф= 48°

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We know,

cos Ф = base/ hypotenuse

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0.669 = 12/x

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3 years ago

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marshall27 [118]

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