[5x2 + 6y2 = 50
Which system is equivalent to
?
7x2 + 2y2 = 10

Is there an x intercept in the equation 60*1.15^x

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3

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