4. In the figure, the circle POR
figure the circle PQR with centre T and with radius r is enclosed m
sector OAB with centre at O and radius 48 cm.
Find
(i) the value of r,
(ii) the area of the shaded region.

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

the correct answers i think are b. and d.

give me brainliest if it is correct!

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees

the answer is -1 for this question

step-by-step explanation: