Which of the following expressions is equal to -4x^2-36

Find the value of x in the diagram below. select the best answer from the choices provided

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3

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?