Step-by-step explanation:
9i
30√5 i
√ -81
= √ 81 * √ -1
= 9i.
5√ -180
= 5i * √ 180
= 5i * √36 * √5
= 5i * 6 *√5
= 30√5 i.
c. side angle side. u shares the same sides
i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.