Nadia walks at an average speed of (x + 2) km/h for (x - 3) hours and cycles at an average speed of
(3x + 5) km/h for x hours. She covers a total
distance of 74 km.
(i) Form an equation in x and show that it reduces
to 4x2 + 4x - 80 = 0.
(ii) Solve the equation 4x2 + 4x – 80 = 0.
(iii) Find the time taken for her entire journey.

Hurry and answer this! circle x with a radius of 6 units and circle y with a radius of 2 units are shown which steps would prove the circles similar? translate the circles so they share a common center point, and dilate circle y by a scale factor of 4. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 4. translate the circles so they share a common center point, and dilate circle y by a scale factor of 3. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 3

Which of the following tables represents exponential functions?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?