Hi there!
We can use discriminants to determine the value of k for which the equation would have complex solutions. (Those involving i)
If b² - 4ac < 0, then the equation will have complex solutions. Therefore:
Plug in the given values of b and a to solve:
7² - 4(2)(k) < 0
Simplify:
49 - 8k < 0
Solve the inequality:
49 < 8k
6.125 < k
k > 6.125. Anything greater than 6.125 would result in complex solutions.
P3 = 10
10 + 5 = 15 = P4
15 + 6 = 21 = P5
21 + 7 = 28 = P6
28 + 8 = 36 = P7
36 + 9 = 45 = P8
45 + 10 = 55 = P9
55 + 11 = 66 = P10
3.(-2)=-6
(-6).(-2)=12
12.(-2)=-24
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.
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q=-2
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a(n)=a(1).q^(n-1)
a(n)=3.(-2)^(n-1)
Answer:1.00
Step-by-step explanation:
A=74-72/2.0
And I did it on kahn
Answer:
JK = 24
Step-by-step explanation:
Δ BKJ and Δ BCA are similar triangles and ratios of corresponding sides are equal, that is
= 
, substitute values
= 
( cross- multiply )
5JK = 120 ( divide both sides by 5 )
JK = 24
