Answer:
x+2=x+2
Step-by-step explanation:
Combine like terms
3x+(-2x) and (-7)+9
x+2=x+2
Answer:
DM should equal 20 inches
2.153, 2.164, 2.167
Those are just a 3 of thousands of possibilities.
Answer: The value of cos theta is -0.352.
Step-by-step explanation:
Since we have given that

We need to find the cos theta between u and w.
As we know the formula for angle between two vectors.

So, it becomes,

Hence, the value of cos theta is -0.352.
Answer:
x=6
Step-by-step explanation:
In a square, its angles are all 90 degrees. So, cutting a square in half into two triangles from corner to corner produces 45 degree angles on both sides. Since the triangles are now 45-45-90 triangles, we can use the rule where the hypotenuse of the triangle is equal to the square root of 2 times the length of either side. So, the side length is 6.