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whats -11 + x =19 i just dont know what we do can someone help me? what is theory of to observe the neucles in cheek cells (a) If a person can jump a maximum horizontal distance (by using a 45 projection angle) of 3.0 m on Earth, what would be his maximum range on the Moon, where the free-fall acceleration is g/6 and g 5 9.80 m/s2 ? (b) Repeat for Mars, where the acceleration due to gravity is 0.38g. The Warners called the island Agate Island because they found so many agates there.A:TrueB:False how to get a girlfrend at age 70 DNA is used to tell people apart. What aspects of DNA do you think make this possible?10 points! And I will mark Brainliest :) What was the Anglo-Boer War about? why do we need to eat What was a characteristic of the rulers of the Zhou dynasty? what is distance between C(5,2) and D(0,4) can someone help me :( Which statement best completes the diagram? The speed of sound through a medium is constant unless the properties change. Explain two ways the speed of sound change. (Anyone please help me with this I need answer today before 2pm) -16+56=(X)3.find ? 2a+b=5 and 6y+4y=48 show that 20a+10b has a greater value than 3x+2y IREADY MATH LEVEL GHELP ASAP DUE AT 11:59!! .........yo help plz....... match each set of values to its correct median "The product of a number and -7,increased by 9, is at most 16."help please i will give brainliest thanks so much please helppop reativity of alkali metals increases down the group while reativity decreases down the group in helogens