Ask question

Ask question

All categories

skelet666 [1.2K]

2 years ago

6

The table shows the numbers of studeNt at a highschool who take spanish and Chinese. No student take both language what is p (se

nior|spanish)

1 answer:

Anastaziya [24]2 years ago

6 0

Answer:

the answer is X

Step-by-step explanation:

it is x

You might be interested in

Taylor buys 2 gallons of milk for $5.50. What is the cost per gallon

Vanyuwa [196]

Answer:

its 2.75 for one gallon

5 0

2 years ago

(w-9)8 need help please

nikitadnepr [17]

You need to expand the brackets eg.
(w-9)8 basically means 8 x (w-9) = 8w-72

8 0

2 years ago

Which techniques can be used to evaluate the expression 12.75 = 1.5? Select all that apply.

n200080 [17]

What is the apply??? Put all of the select all that apply so I can help you

8 0

2 years ago

What precent of 25 is 10?

vivado [14]

40%

40 percent of 25 is 10

10/25x100 and you will get your answer which is 40

4 0

2 years ago

A calculator is required to obtain the final answer on this question. A solid metal sphere at room temperature 20oC is dropped i

yKpoI14uk [10]

Answer:

T = 47.1875°C

Step-by-step explanation:

Given:

Surrounding temp, Ts = 100°C

Initial Temperature ,T0= 20°C

Increase in temperature = 15°C

Final temperature, T = 20 + 15 = 35°C

Time, t = 9 seconds

Let's take Newton's law of cooling:

$T - Ts = (T_0 - Ts)e^k^t$

We'll solve for k

$35 - 100 = (20 - 100)e^9^k$

$-65 = (-80)e^9^k$

Divide both sides by -5

$13 = (16)e^9^k$

$9k = ln (\frac{13}{16})$

$k = \frac{1}{9} ln (\frac{13}{16})$

$k = -0.02307104053$

Let's now find the temperature of the ball after 18 seconds in boiling water.

Use the Newton's equation again:

$T - Ts = (T_0 - Ts)e^k^t$

$T - 100 = (20 - 100)e^-0.0^2^3^0^7^1^0^4^0^5^3^*^1^8$

$T - 100 = (-80)e^-0.0^2^3^0^7^1^0^4^0^5^3^*^1^8$

$T - 100= -52.8125$

$T = 100 - 52.8125$

T = 47.1875°C

Temperature of the ball after 18 seconds in boiling water is 47.1875°C

5 0

3 years ago