2.
a. y=6x+3
b. 4x^2=(1/2)^x+1
c. |9-2x|=3
3.
a. i dont know how to answer this part
b. if you plug it into the system 19.8 does not equal 40 and 31.1 doesn't equal 38
<h2>Explanation:</h2><h2 />
Here we have to compute the dot product:
We know that:
So for any two vectors:
The dot product:
Therefore:
Answer:
Step-by-step explanation:
Given
See attachment
Required
Find BD
If AC = 16, then:
i.e. half the diagonal AC
The diagonals of a rhombus are perpendicular.
This implies that we can apply Pythagoras theorem.
Using Pythagoras theorem on triangle AOB, we have:
Collect like terms
Take positive square roots of both sides
To solve for BD, we use:
--- i.e. half the diagonal BD
Answer:
1. 9.18
2. 9.3
3. 9.376
4. 9.51
Step-by-step explanation: