30+4x+50 what is the value of X

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Okay I can do this!

Step-by-step explanation:

So we have to find the value of x.

So we will move 4x to left hand side (l.h.s)

Like this:

4x = 30 + 50

Further solving it.

4x = 80

Now, we want to find x so we will divide 4 on both the left hand side and right hand side as shown below.

4x / 4 = 80 / 4

4 cut by 4 equals to 1 since 4 x 1 = 4

80 cut by 4 equal to 20 as 4 x 20 = 80

1x = 20

(No need to write 1 with x as we have found the value)

∴ x = 20

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

leave feedback if u need : )

choice b

step-by-step explanation:

f(x) = 88x^2 -264x + 300

the line of symmetry of a parabola is defined by

h = -b/2a

where ax^2 +bx+c=0

so

h = - -264/ (2*88)

h = 3/2

so x = 1.5