Estimation would be 90 x 70
Which is 6300.
Real answer of 92 x 68
= 6256
Answer:
117
Step-by-step explanation:
1398/12 = 116.5
When the number is 5 or above you round up and if the number is 4 or below round down.
Answer:
angle 5 = angle 7 = 127°
Step-by-step explanation:
here , in the given figure ;
angle 2 + angle 5 = 180°
( pair of co-interior angles )
so, 53° + angle 5 = 180°
=》angle 5 = 180° - 53° = 127°
hence angle 5 = 127°
and angle 5 = angle 7 ( vertical opposite angles )
so, angle 5 = angle 7 = 127°
You know that three points A,B,CA,B,C (two vectors A⃗ BA→B, A⃗ CA→C) form a plane. If you want to show the fourth one DD is on the same plane, you have to show that it forms, with any of the other point already belonging to the plane, a vector belonging to the plane (for instance A⃗ DA→D).
Since the cross product of two vectors is normal to the plane formed by the two vectors (A⃗ B×A⃗ CA→B×A→C is normal to the plane ABCABC), you just have to prove your last vector A⃗ DA→D is normal to this cross product, hence the triple product that should be equal to 00:
A⃗ D⋅(A⃗ B×AC)=0
Y = -3
y = 7x - 10
-3 = 7x - 10
+10 +10
7 = 7x
x = 1
Answer: y = -3 and x = 1
or
(1,-3)
