**Answer:**

1.20172

**Step-by-step explanation:**

only if its a right triangle

<h2>Answer </h2>

The length of UC is **18**

<h2>Explanation </h2>

First we are going to find the length of JN; then we are subtracting from it the length of JU plus the length of CN.

We can infer from our picture that JN is 82 + 105, so JN = 187

We can also infer that JU = JH + HU

JU = 22 + 96

JU = 118

We can also infer that CN = 51

Now we can fin the length of UC:

**We can conclude that the length of UC is 18.**

**Answer:**

**Step-by-step explanation:**

the displacement of the particle is given by

The rate of change of position gives the value of velocity.

So, v = ds/dt

Differentiate the position function with respect to time.

Now, at t = a

v = -18/a³ m/s

At t = 1

v = - 18 m/s

At t = 2

v = - 18 / 8 = - 2.25 m/s

At t = 3

v = - 18 / 27 = 0.67 m/s

Answer: 306in^3

method: I would split the cross-section (the trapezium at the front) into two shapes. You first have your rectangle with dimensions of 4 and 7, and your triangle with dimensions of height 4 and base 3 (10 - 7 = 3). 4 × 7 = 28in^2, 4 × 3 = 12, 12 ÷ 2 = 6in^2. The total surface area of the cross-section is therefore 6 + 28 = 34in^2. Now, to find the volume, you just multiply that by 9 which is 306in^3, which is your answer. I hope this helps!