Find the length of the unknown leg of the right triangle. Use pencil and paper. Draw the triangle on graph paper and measure to verify the answer.

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1