Pre-calculus ! express the complex number in trigonometric form. 3 a. 3(cos 0° + i sin 0°) b. 3(cos 90° + i sin 90°) c. 3(cos 180° + i sin 180°) d. 3(cos 270° + i sin 270°)

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Need an artist designed a badge for a school club. figure abcd on the coordinate grid below shows the shape of the badge: the badge is enlarged and plotted on the coordinate grid as figure jklm with point j located at (2, -2) and point m is located at (5, 4). which of these could be the coordinates for point l? a. (2, 4) b. (8, 4) c. (5, 1) d. (5, 7)