Let A, B, C and D be the points on y = e' with x-coordinates 0, 1, 2 and 3. a)
Find the y-coordinates of A, B, C and D, and sketch the situation.

b)

i) Find the gradient of the chord
AB.

ii) Hence use y - yı = m(x – xı) to write down the equation of the chord AB.

iii) Put y = 0 to show that the x-intercept of the chord AB is
- 1/e - 1

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct