Answer:
Step-by-step explanation:
step 1
Find the measure of side c
Applying the law of cosines
substitute the given values
step 2
Find the measure of angle A
Applying the law of sine
substitute the given values
step 3
Find the measure of angle B
we know that
The sum of the internal angles of a triangle must be equal to 180 degrees
so
substitute the given values
Use the cosine function.
cos x = 2/12
cos x = 0.167
use the inverse of cosine:
x = 80.405
The answer is C.
Hope this helps :)
Answer:
- 8
Step-by-step explanation:
Note that 
is the slope of the tangent at x = a
Differentiate using the power rule
(a
) = na
Given
y = 3x² - 2x + 5, then
= 6x - 2
x = - 1 : = 6(- 1) - 2 = - 6 - 2 = - 8
Answer:
Step-by-step explanation:
This expression has three terms and is thus a trinomial.
The degree is 2; this is the highest power of x.
Answer:
50
Step-by-step explanation:
15
is
30
%
of
50
.
Explanation:
Let
x
represent the number.
30
%
=
0.3
in decimal form.
0.3
x
=
15
Divide both sides by
0.3
.
x
=
15
0.3
x
=
50
