Multiple each term in the first parentheses by each term in the second parentheses (FOIL)

(5x*4x) (5x*-2) (-4x*4) (-4*-2)

20x^2– 10x — 16x + 8

= 20x^2– 26x + 8

**Answer:**

60 degrees.

**Step-by-step explanation:**

We know that we can rotate the image by a total of 360 degrees until we reach the original point again.

To rotate the image to a point where the image looks the same, we need to take a look at how we can do this. We want to line up the image with the gap between the two white semicircles. There are a total of 6 of these gaps:

360/6 = 60 degree rotations will make the image the same.

I hope this helps!

1 3/4 oz is mixed with 1 gallon of water. With 5 2/5 gallons of water, since we multiplied the number of gallons by 5 2/5, we multiply the amount of chemical by 5 2/5 as well:

1 3/4 * 5 2/5

Convert to improper fractions:

7/4 * 27/5 (because 1*4+3=7 and 5*5+2=27)

189/20 = 9 9/20 (because 20 goes into 189 9 times with 9 left over)

**Answer:**

f-(g/h) is an algebraic expression of the difference of f and the quotient of g and h.

**Step-by-step explanation:**

I hope it was helpful for you..m

<u>**Answer-**</u>

<em>The radius is increasing at a rate of </em>

<u>**Solution-**</u>

The rate of change of the area of the crater is , i.e

We know that,

Putting this,

Applying chain rule,

Putting the value of radius as 4 (given),