Answer:
1373 r 4
Step-by-step explanation:
Answer:
Therefore,
93.6 feet tall is the tower from the ground.
Step-by-step explanation:
Given:
x = Opposite side to angle 60
50 ft = Adjacent side to angle 60
7 ft = height of boy
So Height of the tower will be,
To Find:
Height of the tower = ?
Solution:
In Right Angle Triangle , Tangent Identity we have,
Substituting the values we get
Substituting "x" For Height of tower we get
Therefore,
93.6 feet tall is the tower from the ground.
The answer here has to do with order of operations rules (PEMDAS).
–2^4 comes out to -16, because the exponentiation MUST be done first. That gives you 16, which you then preface with the - symbol.
(–2)^4 Here the parentheses make the difference: (-2)^4 requires that we take the 4th power of (-1) and mult. that by the 4th power of 2, which is 16.
So, yes, –2^4 and (–2)^4 are different.
What about –2^3 and (–2)^3?
Again we must do exponentiation first. 2^3 is 8, which we then preface with -. Result: -8. (–2)^3 is equivalent to (1)^3 * 2^3, or (-1)*8, or -8. So these two results are identical.
Perhaps it would help to recall that
-1 = -1
(-1)^2 = 1
(-1)^3 = -1
(-4)^4 = 1
and that this pattern repeats itself after you've written each group of 4 lines.
Answer:
9+-36=-27 is the sum of 9 and y is at least - 27.
