The short-run effects of an increase in the expected price level include a. a lower level of output and a lower price level. b. a lower level of output and a higher price level. c. a higher level of output and a lower price level. d. a higher level of output and a higher price level.

Option (b) is correct.

Explanation:

Correct option: A lower level of output and a higher price level.

If there is an increase in the expected price level, as a result short run aggregate supply curve shifts leftward. Therefore, this shift in aggregate supply curve will increase the price level and reduces the level of output in an economy. The long run supply curve will be unaffected by any change in the expected price level.

bd = 9 cm

step-by-step explanation:

in a 30°-60°-90° triangle, the ratio of side lengths is 1 : √3 : 2. that is, the longest side (hypotenuse) is twice the length of the shortest side.

all of the triangles in your geometry are 30°-60°-90° triangles. ac is the hypotenuse of δacd, and the short side of δabc.

the short side ad of δacd will be half the length of ac, so 3 cm. the hypotenuse ab of δabc will be twice the length of ac, so 12 cm. segment bd is the difference of the lengths ab and ad, so is

bd = ab -ad

bd = 12 cm - 3 cm = 9 cm

comment on side length ratios

you can figure the ratios of side lengths in a 30°-60°-90° triangle by considering the trig ratios of the angles. or you can figure the length of the altitude of an equilateral triangle of side length 2 using the pythagorean theorem.

answer; /// the above statement is (true); good luck