Mathematics: From a point level with and 1000ft away from the base of the washington monument, the angle of elevation to the top of the momument is 29 degrees. find the height of the monument

The correct pair is 3Step-by-step explanation:1.2.3.4.Hence, the Option 3 is correct...

From a point level with and 1000ft away from the

harding6698

09.06.2020

The correct pair is 3

Step-by-step explanation:

$f(a)=a^{2}-4 , g(a)=\sqrt{a} \\gof(a)=g(a^{2} -4)\\=\sqrt{a^{2}-4 } \neq |a|-2$

$f(a)=\frac{1}{2\cdot a-1}, g(a)=2\cdot a -2\\gof(a)=g(\frac{1}{2\cdot a-1} )\\=\frac{2}{2\cdot a-1}-2\\=\frac{4-2\cdot a}{2\cdot a-1}\neq|a|-2$

$f(a)=5+a^{2} , g(a)=\sqrt{a-5} -2\\gof(a)=g(5+a^{2} )\\=\sqrt{5+a^{2}-5 } -2\\=\sqrt{a^{2} } -2\\=|a|-2$

$f(a)=3-3\cdot a , g(a)=4\cdot a-5\\gof(a)=g(3-3\cdot a )\\=4(3-3\cdot a)-5\\=7-12\cdot a\neq|a|-2$

Hence, the Option 3 is correct

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