Answer:
C. 0, 1.29, -0.65
Step-by-step explanation:
The real solutions of the equation is where the graph of
intersects the x-axis.
This means that we need to graph using a graphing software.
From the graph shown in the attachment ,
, and
are the real solutions.
The correct choice is C
<u>Number of terms = 48</u>
<u>common difference = 1.5</u>
This question involves the concept of Arithmetic Progression.
=
(a + l)
where;
a = first term
l = last term
n = number of terms
first term; a = 4
last term; l = 76
Sum of A.P; = 1920
1920 = (4 + 76)
simplifying this gives;
1920 = 40n
n = 1920/40
n = 48
=
+ (n - 1)d
where;
is first term
d is common difference
n is number of term
is the nth term in question
the 48th term is 76
Thus;
76 = 4 + (48 - 1)d
76 - 4 = 47d
72 = 47d
d = 72/47
d ≈ 1.5
Thus;
Number of terms = 48
common difference = 1.5
Read more at; brainly.com/question/16935540
