4. B and Care points on a circle, centre o TCD is a tangent to the circle.
Angle BAC 54
10.
8
[2]
(a) Find angle BOC, giving a reason for your answer
(b) When is the origin, the position vector of point is
Work out the gradient of the radius OC.
(C)D is the point (7, k).
10
Find the value of k.

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation: