Step-by-step explanation:
Hey there!!
Given,

Comparing it with ax^2+bx+c =0 we get,
a= 1, b= 8, c= -5.
Using formula,

Keep all values,




Taking negative,



Similarly, taking positive,



Therefore, x= (4 + root 21, 4 - root 21).
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
hye you want answer of this question ?
⇒ s = a+b+c2=5+12+132 a + b + c 2 = 5 + 12 + 13 2 = 15 cm.
Area of the base = √s(s−a)(s−b)(s−c)
= √15×10×3×2 15 × 10 × 3 × 2 cm2 = 30 cm2
Answer:
50%
Step-by-step explanation:
So, we divide by another 2! to cancel out double counting of two T's. Finally, if we divide all 6 different ways of getting exactly 2 heads (and 2 tails) in 4 flips by all possible outcomes 2 * 2 * 2 * 2 = 16 we would get the probability of exactly 2 heads in 4 flips.