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madam [21]
3 years ago
12

How does an increase in thermal energy affect molecules?

Mathematics
2 answers:
zheka24 [161]3 years ago
6 0

Answer:

The molecules become more active and it expands.

Step-by-step explanation:

AveGali [126]3 years ago
3 0

The molecules tend to speed up and move faster throughout the substance once thermal energy increases. This is evident whenever we heat up water as its molecules tend to move faster throughout the water as thermal energy tends to increase.

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1 1/3 ÷ 5/6 qual e a resposta dessa pergunta<br><br><br>​
Korvikt [17]

Answer: 1 9/15

Step-by-step explanation:

I can’t speak Spanish

6 0
3 years ago
A manufacturer is planning to sell a new product at the price of 210 dollars per unit and estimates that if x thousand dollars i
sattari [20]

Answer:

Development costs: $2757

Promotion costs: $3155

Step-by-step explanation:

This might seem like a two-variable problem, but in actuality it's not - because the demand function is a sum of two components, each being independent and using only one variable, we can solve for the two separately.

Moreover, the price per unit and cost per unit is constant, so each product yields exactly $80 ($210 - $130).

Let's solve separately.

We need to maximize:

$80 * 160y/(y+4) - 1000y = $12800 * y/(y+4) - $1000*y

$80 * 170x/(x+7) - 1000x = $13600 * x/(x+7) - $1000*x

Let's go:

$12800 * y/(y+4) - $1000*y = $12800 * (1 - 4/(y+4)) - $1000y = $12800 - $51200/(y+4) - $1000*y

we analyze the derivative. $12800 is a constant, so we can skip it. Derivative of 1/(y+4) is -(y+4)^-2, derivative of $1000y is $1000.

deriv = $51200/(y+4)/(y+4) - $1000

We find the changepoints by analyzing $51200/(y+4)/(y+4) - $1000 = $0. We don't need to worry about y+4 = 0 because we cannot spend negative money on development/advertisement.

(y+4)^2 = $51.2

y+4 ~= 7.155417528 (or -y-4 = 7.1554... but it doesn't make sense because negative budget so we don't analyze).

y ~= 3.155417528

lastly, we should check that it's actually a maximum there - but it is, the original function goes to negative infinity.

rounding $1000y to the nearest dollar gives us $3155

Let's do the same for x:

$13600 * x/(x+7) - $1000*x = $13600 * (1 - 7/(x+7)) - $1000x = $13600 - $95200/(x+7) - $1000*x

deriv = $95200/(x+7)/(x+7) - $1000

$95200/(x+7)/(x+7) - $1000 = $0

(x+7)^2 = 95.2

(x+7) ~= 9.75704873412

x ~= 2.75704...

rounding $1000x to the nearest dollar yields $2757

3 0
3 years ago
Solve -3y + 12 = -48
fenix001 [56]

Answer:

-3y +12 = -48

-3y = -60

y = -60/-3

y = 20

Step-by-step explanation:

7 0
3 years ago
Use the Distributive Property to simplify each expression:
natta225 [31]

6a + 60

5w + 25

56 f - 122

10.5 w - 31.5

0

m - n -1


6 0
3 years ago
Rather made a 10 to figure out sum for 9 + 3. Explain eathens thinking
Katarina [22]

Answer: to make it easier

Step-by-step explanation:

well 9+3=12 but taking 1 from the three and making ten then adding 2 is easier

5 0
3 years ago
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