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3 years ago

What is temperature of hot chocolate in degrees celsius?

1 answer:

7 0

Assuming it's boiling, the temperature will be 100°C, since water based materials can not exceed that without becoming a gas.

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Sara packed 7 boxes of books. Each box had 13 mystery books and 15 science fiction books. How many more science fiction books th

Mrrafil [7]

Answer:

There are 14 more science fiction books than mystery books

Step-by-step explanation:

Multiply 13 x 7 = 91

Multiply 15 x 7 = 105

Subtract 105 - 91 = 14

5 0

3 years ago

Julie recently drove to visit her parents who live 120 miles away. On her way there her average speed was 20 miles per hour fast

mart [117]

40mph average there totaling 3 hours, 60mph back, totaling 2 hours. 5 hours total.

5 0

3 years ago

Find the product of (x + 3)(x − 3). x2 − 6x + 9 x2 + 6x + 9 x2 + 9 x2 − 9

julia-pushkina [17]

The answer would be x^2-9

3 0

3 years ago

Read 2 more answers

What type of function is represented by the table of values below

ratelena [41]

This is a linear function.

If you were to plot these numbers on a graph, they would form a straight line.

4 0

3 years ago

Read 2 more answers

Please help... I have no clue

muminat

Answer:

OPTION C: Sin C - Cos C = s - r

Step-by-step explanation:

ABC is a right angled triangle. ∠A = 90°, from the figure.

Therefore, BC = hypotenuse, say h

Now, we find the length of AB and AC.

We know that: $\textbf{Sin A} = \frac{\textbf{opp}}{\textbf{hyp}}$

and $\textbf{Cos A} = \frac{\textbf{adj}}{\textbf{hyp}}$

Given, Sin B = r and Cos B = s

⇒ $Sin B = r = \frac{opp}{hyp} = \frac{AC}{BC} = \frac{AC}{h}$

⇒ $\textbf{AC} = \textbf{rh}$

Hence, the length of the side AC = rh

Now, to compute the length of AB, we use Cos B.

$Cos B = s = \frac{adj}{hyp} = \frac{AB}{BC} = \frac{AB}{h}$

⇒ $\textbf{AB} = \textbf{sh}$

Hence, the length of the side AB = sh

Now, we are asked to compute Sin C - Cos C.

$Sin C = \frac{opp}{hyp}$

⇒ $Sin C = \frac{AB}{BC}$

$= \frac{sh}{h}$

= s

Sin C = s

$Cos C = \frac{adj}{hyp}$

$\implies Cos C = \frac{AC}{BC}$

⇒ Cos C = $\frac{rh}{h}$

Therefore, Cos C = r

So, Sin C - Cos C = s - r, which is OPTION C and is the right answer.

5 0

3 years ago