Hii help me pls pls pls pls :( pls

B) 5mm, 3mm, 7mm

Step-by-step explanation:

Triangles can only be formed when the sum of each two sides of the triangle is greater than the other side.

A.

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Because , ∴ Option A cannot form a triangle.

B.

Because all combinations satisfy, ∴ Option B can form a triangle.

C.

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Because , ∴ Option C cannot form a triangle.

D.

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Because , ∴ Option D cannot form a triangle.

Hope this helps :)

60%

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a