7.8
is the answer :) because you have to turn the fraction into a decimal then multiply by 3.
Answer:
-134/9
Step-by-step explanation:
first of all we have the 5th term and 2nd term
T5=768 =a*r^4
T2=-12=a*r ^1
make a subject of formula in the both equations
that is a=T2/r and T5/r^4
a=12/r and a=768/r^4
when u equate them u will get
-64=r^3 so r=-4 then to find a that is 1st term
since second term is T2=a*r=12 an r=-4 then
a=12/-4 hence a=-3
"If and only if" (abbreviated "iff") is a biconditional logical connective between two assertions that is either true or untrue. The correct option is D.
<h3>What is "if and only if" operator?</h3>
In logic and related subjects such as mathematics and philosophy, "if and only if" (abbreviated "iff") is a biconditional logical connective between two assertions that is either true or untrue. It is represented by ⇔ or ↔.
The two of the events are
- p: the whole number has one digit.
- q: the whole number is less than 10.
Now, the representation of "the whole number has one digit if and only if the whole number is less than 10" is done as p ↔ q.
Hence, the correct option is D.
Learn more about "if and only if" operator:
brainly.com/question/18301011
#SPJ1
<span>The distance
between two points (x₁,y₁),(x₂,y₂) = d
</span>
The coordinates of point F = (-2,4)
The coordinates of point E = (-7,0)
the length of line segment FE = <span>
= √41
≈ 6.4 (</span><span>rounded to the nearest tenth)</span>
