What is 3x^2-10x+7 factored using ax^2+bx+c?

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?

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.