Answer:
,
Step-by-step explanation:
you use the quadratic equation: (-b ± ) ÷ 2a
in this case, a = 5, b = 5, c = 8
inside the radical will be -135, hence using 135i where 'i' equals -1
Answer:
288/5
Step-by-step explanation:
simplified: (2³x 9) x 4/5 = 288/5
I am assuming that you will need to do Pythagorus Theorem to find the 3rd side length. If thats the case then you will need to do the following formula : a^2 + b^2 = <span>√(c)
So 15^2 + 30^2 = </span>√(c)
= 33.5 inches
The third angle would be 115 because 180 - 45 - 20 = 115
I hope this helped.
<span>One cm represented 11 in. in the first scale, but now 1 cm represents 12 in. in the second scale.</span>