Answer:
A) 96
Step-by-step explanation:
The 2 base angles are both 42* thus adding up to 84*. 180-84=96
You are welcome.
It is d. Expression has to have an equal sign and solves for a variable in this case it's a
Answer:
B) -7m - 8 = m - 4
D) m - 4 = -7m - 8
E) -8 - 7m = -4 + m
Step-by-step explanation:
Solve all of the equations to see if they end up with the same result. Start with the original:
-2m - 5m - 8 = 3 + (-7) + m
-7m - 8 = -4 + m (now we know B and D and E are correct)
-7m - m - 8 = -4 + m - m
-8m - 8 = -4
-8m - 8 + 8= -4 + 8
-8m = 4
,
,
,
,
;; to find the answer, set the expressions equal to each other, since the sum of the numbers should be the same.
Use
and solve for
, which would result in
.
You can also use
to find
– or
.
Plug in the values for
and
, and find
using
or
and results in
.
After plugging in the
value, you can easily find
and
.
– since 66 is the sum of a full row, and the sums of the numbers in each row, column, and diagonal are the same, so therefore,
should also equal 66. This results in
, and, using the same value for the sum of
, or
, we find that
.
The final answer is
,
,
,
,
.
Sorry it took so long;; I hope this helps :)
