Area A rectangle has a perimeter of 20 ft. Find a function that models its area A in terms of the length x of one of its
sides. Also find the dimensions of the rectangle which gives largest area.

Can someone please answer in step by step to help me understand

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Savannah had 40 iris blooms last year this year she had 15% more iris blooms how many more hours blooms did savannah have this year