Answer:
Here is the question attached with.


is a straight line.
is a right angled triangle.
Options
are correct answers.
Step-by-step explanation:
⇒As
is ⊥
so it will forms right angled triangle then
.
⇒Measure of
as
as
is the bisector of
,meaning that
is half of
so
.
⇒
is a straight line as the angles measure over it is
.
⇒Measure of
from linear pair concept.
As
,plugging the values of
we have
.
The other two options are false as:
it is exceeding
whereas
is a
straight line.
- And
is not true.
As
and 
So we have total
answers.
The correct options are
.
Answer:
(Choice C) C Replace one equation with a multiple of itself
Step-by-step explanation:
Since system A has the equations
-3x + 12y = 15 and 7x - 10y = -2 and,
system B has the equations
-x + 4y = 5 and 7x - 10 y = -2.
To get system B from system A, we notice that equation -x + 4y = 5 is a multiple of -3x + 12y = 15 ⇒ 3(-x + 4y = 5) = (-3x + 12y = 15).
So, (-x + 4y = 5) = (1/3) × (-3x + 12y = 15)
So, we replace the first equation in system B by 1/3 the first equation in system A to obtain the first equation in system B.
So, choice C is the answer.
We replace one equation with a multiple of itself.
Round 1.05 mm to the nearest whole number the result is -1.1 then round 2.48 which the result will be equal to 3. The total variation in water level is -3.3
M<1≠m<2
m<4≠m<6
m<3 + m<5 = 180° ≠ 90°
m<7≠m<8
Answer:
none of them.