3 years ago

Rewrite the expression as an algebraic expression in x. cos(tan−1 x)

1 answer:

3 0

1/(sqrt(1+x^2))..................

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Maurinko [17]

Answer:

≈ 82 feet

Step-by-step explanation:

Since the triangle is right use Pythagoras' identity to calculate distance (d)

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

Here the hypotenuse is the distance (d) between the 2 poles, hence

d² = 80² + 45² = 6400 + 2025 = 8425 ( take the square root of both sides )

d = $\sqrt{8425}$ ≈ 82 feet ( to the nearest foot )

8 0

3 years ago

Anna [14]

Answer:

number 0

Step-by-step explanation:

The number 0 is a whole number but not a natural number. But we can say that natural numbers contain all the whole numbers except the number 0.

6 0

2 years ago

Kisachek [45]

D, y-y1=m(x-x1)
^^^^^^^^^^^^^^^

6 0

2 years ago

Nataly_w [17]

-3 (-6=82)+8
im pretty sure like 80%

4 0

1 year ago

Vladimir79 [104]

Choose values for x, multiply them by 2, then graph these points.<span />

3 0

3 years ago