**Answer:**

D

**Step-by-step explanation:**

A sin 2.355/2.355 =0.01745240644 cos -2.355/2.355 root square

=180 so untrue not-1

B. sin =0.01745240644 cos = 0 so untrue not 1.

C sin = 0.01745240644 cos = 180 so untrue not 1

D = - 2.355/2.355= 0.01745240644 cos = 0.01745240644 = -1 so true.

As if we divide 1 into -1 = 1

When we divide 0.01745240644 / 0.01745240644 = will also = 1

The answer is -1 as inverse.

**Answer:**

I think sin would be 330 and Cos would be 60

**Step-by-step explanation:**

**Answer:**

**56 cubic meter**

**Step-by-step explanation:**

Volume of a pyramid: V=(lwh)/3

So then 7*3*8/3= 7*8 =

**56 cubic meter**

**Answer:**

writing mixed numbers as improper fractions

**Step-by-step explanation:**

To convert a mixed fraction to an improper fraction, follow these steps:

Multiply the whole number part by the fraction's denominator.

Add that to the numerator.

Then write the result on top of the denominator.

https://www.mathsisfun.com/improper-fractions.html