Give each vector as a linear combination in terms of unit vectors i and j for JK with j(-6,1) and K(-2,-8)

What is the value of x in the diagram below?

Acircle has a circumference of 28.36 units what is the diameter of the circle

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?