The reaction that can be regarded as the endothermic reaction is the melting of the ice cube. Thus, option C is correct.
The endothermic process is given as the reaction, in which the energy is absorbed by the system from the surrounding.
The endothermic reaction results in the conversion of the reaction to a lower temperature. The reaction that can be regarded as the endothermic reaction is the melting of the ice cube. Thus, option C is correct.
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Answer: C. The melting of an ice cube
Explanation: Just trust!
Answer:
D: x^2 + 7x + 4
Explanation:
To solve this, we have to replace the x in the equation to x + 2.
f(x+2) = (x+2)^2 + 3(x+2) - 6
Now we multiply the parenthesis with the number next to it.
f(x+2) = x^2 + 4x + 4 + 3x + 6 - 6
For the (x+2)^2, it becomes (x+2)(x+2), and in order to multiply them, use FOIL (First, Inner, Outer, Last). First, we multiply the first two numbers (x and x) to get x^2. Then, we multiply the inner and outer numbers (x * 2 and x * 2) to get 2x and 2x. then, we add those together to get 4x. After that, you multiply the last two numbers (2 and 2) to get four! So: (x+2)(x+2) = x^2 + 4x + 4!
Finally, you can simplify the numbers first by adding / subtracting similar numbers (numbers with the same exponent)
f(x+2) = x^2 + 7x + 4
Your answer is D!
Answer:
m = 16hd - 3.50d
Explanation:
Earnings per hour = $16
Earnings per day = $16h
Where,
h = number of hours worked in a day
If she works d days
Lisa's total earnings = 16hd
Where,
h = number of hours worked in a day
d = number of days
Lisa's cost per day = $3.50
If she works for d days,
Total cost = 3.50d
If
m = total amount in dollars Lisa earns in a month if she works d days and h hours
m = 16hd - 3.50d
For example,
If h = 3 hours and d = 25
m = 16(3)(25) - 3.50(25)
= 1,200 - 87.5
= $1,112.5
m = 1,112.5
According to the information, the number of words Idina can type in 12 minutes is found to be 432.
In computers, typing may be defined as the work or activity of using a computer keyboard or typewriter in order to write a message or information to another user.
"Typing” was the word people came up with over a century ago, to describe a new phenomenon, the activity of pressing keys on the newly-invented typewriter.
According to the question,
The number of words Idina can type in 2.5 minutes = 90.
The number of words Idina can type in 1 minute = 90/2.5 = 36.
Now, the number of words she can type in 12 minutes = 36 × 12 = 432.
Therefore, according to the information, the number of words Idina can type in 12 minutes is found to be 432.
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Answer:
270 words in 12 minutes
Explanation:
divide 90 by 4 to find out how many words per minute
90÷4=22.5
Then multiple 22.5 by 12
22.5×12=270
Answer:
is it a SAT or any other subject question as I am not able to understand.
being a student who is preparing for SAT, it is my curiosity that has peaked so please regard my question.
Answer:While caecilians have scales similar to fish, most other amphibians have moist, permeable skin. This forces most species to live in moist or aquatic habitats; otherwise, they would quickly dehydrate as water is lost through the skin.
Explanation: