<h2>15 58</h2>
Step-by-step explanation:
BD = DC = 1/2 BC ---> AD is median ( because in equilateral triangle altitude equals to median )
so, therefore
AB = 18 (given)
BD = 1/2 BC
BD = 1/2 × 18
BD = 9
AB² = AD² + BD² ---( by pythagoras theorm)
18² = AD² + 9²
324 = AD² + 81
324 - 81 = AD²
243 = AD²
then,
AD = √243
AD = 15 58
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Answer:
to get the value of xtake 4x + 2x + 36 degrees is equals to 180 degrees this is because 4X and 2x + 36 degrees are angles on a straight line because 4X corresponds to the angle on top of 2x + 36 degrees so back to the equation we collect the like terms it will be 4 x + 2 x is equals to 180 degrees minus 36 degrees 6 x is equals to 144 x is equals to 24 degrees
To complete the square, the constant term on the left (now 34) needs to be (14/2)² = 49, so we need to add (49 -34) = 15 to the equation.
x² +14x +34 +15 = 5 +15
x² +14x +49 = 20
(x +7)² = 20 . . . . . . . . . p = -7, q = 20
Answer:
<em><u>y = 4 and x = 9</u></em>
Step-by-step explanation:
I hope this is correct
