3. Find the equation for the following parabolas. a) The graph of y=x is translated 3 units left, 5 units down and is stretched vertically by a factor of 2.5.

b) A parabola that is compressed by a factor of } , opens up, and has its vertex at (2,4).

c) A parabola congruent (same shape) to 2012, has a maximum value of 7, and an axis of symmetry at x=1.​

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds.then use the distributive property and mental math to evaluate the expression.

Simplify (8x2 − 1 + 2x3) − (7x3 − 3x2 + 1). −5x3 + 11x2 − 2 5x3 − 11x2 + 2 x3 + 2x2 + x3 x3 − 2x2 − x3