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2 years ago

Due in 20 mins help pls

Mathematics

2 answers:

Lubov Fominskaja [6]2 years ago

7 0

Step-by-step explanation:

${13}^{2} = {6.5}^{2} + {x}^{2} \\ {x}^{2} = 126.75 \\ x = 11.2$

bearhunter [10]2 years ago

3 0

Answer:

11.3 cm

Step-by-step explanation:

since this is an equilateral triangle it's every sides are equal

side length (a) = 13 cm

formula to calculate the height of equilateral triangle is

h = $a *\frac{\sqrt{3} }{2}$

= $13 * \frac{\sqrt{3} }{2}$

= $\frac{13\sqrt{3} }{2}$

=11.25

=11.3

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3 years ago

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Effectus [21]

The correct answer is: [C]:  " $\frac{7}{18}$ " .
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Explanation:
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2 / (9x) = 4 / 7 ; solve for "x" ;
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The answer is: " $\frac{7}{18}$ " ;

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2 years ago

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3 years ago

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Answer:

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