Explanation

To calculate average speed, use the formula:

Average Speed=Total Distance/Total Time​

Given:

• Total Distance = 60 km

• Total Time = 2 hours

Now, substitute these values into the formula:

$$text{Average Speed} = frac{60}{2} = 30 , text{km/h}$$

Explanation

 The BODMAS rule dictates the order of operations:

• Brackets,
• Orders (powers/roots),
• Division and Multiplication (from left to right),
• Addition and Subtraction (from left to right).

Therefore, operations within brackets are the first to be solved

Explanation

Trinidad and Tobago is a dual-island Caribbean nation near Venezuela, with distinctive Creole traditions and cuisines. Trinidad’s capital, Port of Spain, hosts a boisterous carnival featuring calypso and soca music. Numerous bird species inhabit sanctuaries such as the Asa Wright Nature Centre. The smaller island of Tobago is known for its beaches and the Tobago Main Ridge Forest Reserve, which shelters hummingbirds.

Explanation

Change from direct to indirect speech:

"He said, 'Are you ready?'" → This is a question.

The reporting verb becomes "asked."

"Are you ready?" → "if I was ready" in indirect speech.

Explanation

According to BODMAS, brackets are solved first. So, the expression inside the brackets 

(3+2) will be solved first before proceeding with multiplication or addition.

Explanation

Use integration by parts:
Let $u=x$, $dv=\cos (x)dx$

Then:

$$\int x\cos (x)dx=x\sin (x)-\int \sin (x)dx=x\sin (x)+\cos (x)$$

Evaluate from $0$ to π/2

$$= left( frac{pi}{2} cdot 1 + cosleft( frac{pi}{2} right) right) - left( 0 + cos(0) right) = frac{pi}{2} - 1$$

π/2​−1

Explanation

Cornstarch and water form a non-Newtonian fluid called oobleck, which:

• Acts like a liquid when moved slowly
• Acts like a solid when force is applied