What is the integer closest to the square root of 17

Which of these triangle pairs can be mapped to each other using two reflections?

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?

Which graph of a hyperbola represents the equation 16x^2-y^2=16