**Answer:**

mass AsCl₃ in 8.2x10⁵ L = 99.2gAsCl₃

**Step-by-step explanation: **

Let's remember that 0.05 ppm (parts per million) would be write terms of mg/L. We have 0.05 mg/L, that is a concentration unit.

First of all we need to find the g/L of AsCl₃ present in water.

Now, we just need to multiply it by 8.2 x 10⁵ L to determine the mass of AsCl₃ present in that volume.

Finally we have:

.

Have a nice day!

**Answer:104**

**Step-by-step explanation:**

**125 – 25 + 5 – 1=105**

I hope this helped :))

**Answer:**

1379.31meters is the line-of-sight distance from the television camera to the base of the stadium .

**Step-by-step explanation:**

As given

A blimp provides aerial television views of a tennis game.

The television camera sights the stadium at a 17degrees angle of depression. The altitude of the blimp is 400m.

Now by using the trignometric identity .

As the figure is given below .

Perpendicular = AC = 400 m

Hypotenuse = AB

Putting all the values in the identity .

AB = 1379.31 meters

Therefore the 1379.31 meters is the line-of-sight distance from the television camera to the base of the stadium .

**Answer: **

ax^2 + bx + c = 0

This is the general form of a quadratic polynomial.

as per this,

a = 1

b = 1

c = -3