Examlex
Solve the problem.
-A school building has a height of 47 feet. Its shadow is currently 13.6 feet long, and the shadow of the church next door is 19.8 feet long. Use similar triangles to calculate the height of the church to the nearest tenth of a
Foot.
Afghanistan
A landlocked country located at the crossroads of Central and South Asia, noted for its complex history of war and strategic significance.
Mujahideen
Guerrilla fighters in Islamic countries, especially those who fought against Soviet forces in Afghanistan during the 1980s.
Nixon's Visit
Nixon's Visit refers to President Richard Nixon's historic trip to China in 1972, a pivotal moment in U.S.-China relations that marked the beginning of normalization between the two countries after years of estrangement.
China
A country in East Asia, the world's most populous nation, known for its rich history, culture, and as a major global economic power.
Q22: The position of a weight attached
Q116: <span class="ql-formula" data-value="f ( x ) =
Q142: <span class="ql-formula" data-value="f ( x ) =
Q169: <span class="ql-formula" data-value="\frac { \sin x }
Q172: <span class="ql-formula" data-value="\cot x = 1 ,
Q175: <span class="ql-formula" data-value="\sin \frac { 5 \pi
Q283: <span class="ql-formula" data-value="\sin \theta \cos \theta \sec
Q354: Tides go up and down in
Q485: A rotating beacon is located a
Q506: <span class="ql-formula" data-value="\tan ^ { - 1