PLEASE HELPP ITS QUIZ: if the product 2x+1 and 3x-4 were placed in ax^2+bx+c form, what would the value of a+b+c equal? FULL EXPLANATION PLEASE 20 POINTS!!

Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?

Find the area of just the wood portion of the frame. this is called a composite figure. you will need to use your values from problem #2need all exepct 4 answerd if you can