What is the equation of the linear model shown? A. y = 0.8x + 4

B. y = 1.25x − 0.5

C. y = −0.8x + 20

D. y = 0.8x + 0.4

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585