Let d represent the day of the month. Can d be 15? 56? 28? 0?
1 answer:
You might be interested in
Question 14, Part (i)
Focus on quadrilateral ABCD. The interior angles add to 360 (this is true for any quadrilateral), so,
A+B+C+D = 360
A+90+C+90 = 360
A+C+180 = 360
A+C = 360-180
A+C = 180
Since angles A and C add to 180, this shows they are supplementary. This is the same as saying angles 2 and 3 are supplementary.
==================================================
Question 14, Part (ii)
Let
x = measure of angle 1
y = measure of angle 2
z = measure of angle 3
Back in part (i) above, we showed that y + z = 180
Note that angles 1 and 2 are adjacent to form a straight line, so we can say
x+y = 180
-------
We have the two equations x+y = 180 and y+z = 180 to form this system of equations
Which is really the same as this system
The 0s help align the y terms up. Subtracting straight down leads to the equation x-z = 0 and we can solve to get x = z. Therefore showing that angle 1 and angle 3 are congruent. We could also use the substitution rule to end up with x = z as well.
Answer and Step-by-step explanation: (MAKE ME BRAINLIEST)
Simplified version
1) √14/6
2)√2
3)√7/3
4)√3/7
*step by step is shown in the photos.
Answer:
Step-by-step explanation:
1).
=
=
=
=
=
=
=
=
=
2).
=
=
=
=
=
3).
=
=
=
=
=