Step-by-step explanation:
2 - 3+ (-5) + (-3)
= 2 - 3 - 5 - 3
= -9
Answer:
Step-by-step explanation:
a) angle CAD= angle ODA ( in triangle OAD, OA=OD(same radius) angels opp to equal sides are equal)
hence angle CAD=42
b)angle b =90(angle subtended by diameter)
hence using angle sum property in triABC,
angle ACB=66-------------eq4
c) in tri OAD,
Angle AOD=180-(42+42)-------(using angle sum prop.)
=> 96-----------------eq1
angleACD=1/2 Angle AOD ( angle subtende by an arc at centre is double the angle subtended...)
hence angle ACD =1/2 x 96(from eq1)
angleACD=48--------------eq3
from eq 3,and eq4,
angle BCD= 48+66
=114 degree...
hope this helped you........pls mark brainliest
Answer:
When an equation that has no solution, it means that the equation does not have an answer and that there is no way that the equation will be true regardless of the values given to variables or where the variables are on one side or both sides of the equation because of the way the equation was set up or constructed.
Step-by-step explanation:
For example, the following equation with variables on both sides of the equal sign that has no solution, we have;
21 + 9·x = 15+ 5·x + 4·x
21 + 9·x = 15+ 9·x
Subtracting 9·x from both sides gives;
21 + 9·x - 9·x = 15+ 9·x - 9·x
21 + 0 = 1 5 + 0
21 = 15 (Which not true and cannot be true because 21 ≠ 15)
For example of equation with variables on one side of the equal sign has no solution, we have;
21 + 9·x - 5·x - 4·x = 15
21 + 9·x - 9·x = 15
21 + 0 = 15
21 = 15 (Which not true and cannot be true because 21 ≠ 15).
For this case we have the following vectors:
a = 3i + 8j
b = -0.5i - 4j
Using product point we have:
a.b = (3i + 8j). (- 0.5i - 4j)
a.b = (3) * (- 0.5) + (8) * (- 4)
a.b = -1.5 + -32
a.b = -33.5
Answer:
The point product is given by:
a.b = -33.5
B. -33.5
