i can give brainliest!! pls someone help me im so clueless. the questions are : 1. find a function that gives the area A(x) of the playground in square meters in terms of x. 2.what side length x gives the max area that the playground can have ? &3. what is the max area that the playground can have ?

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

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle

Which of the following vectors are orthogonal to (2,1)? check all that apply