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Gennadij [26K]
2 years ago
7

Someone Help me please

Mathematics
1 answer:
bagirrra123 [75]2 years ago
3 0

Answer:

25

Step-by-step explanation:

You plug in the g(x) function into the f(x) function as the x, after this you replace the x with -1 and solve for you answer, so it should look like

f(g(x))=(2x+7)^2

f(g(-1)=(2*-1+7)^2=25

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Step-by-step explanation:

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Novay_Z [31]

Answer:

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Step-by-step explanation:

we have

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The formula to solve a quadratic equation of the form

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in this problem we have

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therefore

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Trigonometry can be used to find angles and sides of simple triangles. If an 18-foot ladder touches a building 14 feet up the wall then the angle can be deduced by trigonometry. In this case, the ladder defines the hypotenuse (H) of the triangle and the wall defines the opposite (O) side of the triangle. Therefore we can use the equation theta=sin^-1(O/H) . This yields an angle of 51 degrees. 
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