3 years ago

What is the solution of the equation x^2 + 2x -7=0

Mathematics

1 answer:

frosja888 [35]3 years ago

5 0

Answer:

x = -1 + 2 sqr2

x = -1 -2 sqr2

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

Find the area of a triangle with a =33, b =51, and c =42.

PolarNik [594]

Answer:

d. 690.1 units²

Step-by-step explanation:

1. You can use the Heron's formula to calculate the area of the triangle, which is:

$K=\sqrt{s(s-a)(s-b)(s-c)}$

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$s=\frac{33+51+42}{2}\\s=63$

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4. Therefore, the area is 690.1 units².

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