Answer:

Step-by-step explanation:
We are given a triangle
whose sides are
a=12
b=8
c=13
Since, c is largest among them
So, angle C must be largest angle
we can find angle C
we can use law of cosine formula

now, we can plug values


now, we can find angle
we get

785.63-(57+125)
=785.63-182
=603.63
603.63+57.25=$660.87
Answer:
i. Term =
+ 
ii. Coefficient = 
iii. Constant = 
iv. Factor = 
Step-by-step explanation:
A trapezoid is a quadrilateral which has its base parallel to the opposite side. It's area can be determined by;
Area of trapezium =
(
+
)h
Where
is the measure of length of its fist base,
is the measure of its second base and h is its height.
Considering the given question,
Term =
+ 
Coefficient = 
Constant = 
Factor = 
Answer:
C. 2.5×10^-27
Step-by-step explanation:
(2×10^-13)^-2 = 2^-2 × 10^(13×(-2)) = 1/4 × 10^-26
= 0.25 × 10^-26 = 2.5 × 10^-27
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Your scientific or graphing calculator can compute and display this for you.