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amid [387]
4 years ago
10

4. Metal mercury at room temperature is a liquid. Its melting point is -39°C. The freezing point of alcohol is-114°C. How much w

armer is the melting point of mercury than the freezing point of alcohol?
Mathematics
1 answer:
blondinia [14]4 years ago
3 0

Answer:

75 degrees Celsius

Step-by-step explanation:

-114 - -39 = -75

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OLEGan [10]

Step-by-step explanation:

please mark me as brainlest

3 0
2 years ago
If A = -3n + 2 and B = 5n - 7, what is the value of A - B, in simplest form?
11Alexandr11 [23.1K]

Answer:

-8n + 9

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

A = -3n + 2

B = 5n - 7

A - B

<u>Step 2: Simplify</u>

  1. Substitute:                              -3n + 2 - (5n - 7)
  2. Distribute negative:               -3n + 2 - 5n + 7
  3. Combine like terms (n):         -8n + 2 + 7
  4. Combine like terms (Z):         -8n + 9
4 0
3 years ago
The equation sin(40o) = can be used to determine the length of line segment AC. What is the length of ? Round to the nearest ten
I am Lyosha [343]
The answer:
For more explanation please look at the image.
according to the image, the length of line segment AC can be found as
the following method shows:

<span>sin(40°)= opposite side  / hypotenuse,  opposite side = b, hypotenuse = AB= 20cm
</span>sin(40°)= b / 20 and this applies, b = 20 x sin(40°) = 0.64*20 = 12.85 cm
AC= 12.85 cm

 

8 0
3 years ago
Read 2 more answers
Fred wants to but two teeshirt. The first shop sells them for £11.45 each and it is buy one get one half price. The second shop
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Answer:

thwe next time i want iti wnat ti

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Gary learned that the value of his car depreciates by 15% percent per year. Which of the following functions best describes the
Sever21 [200]
For this case we have that the original value of the car is:
 m dollars
 For the following year we have the value is:
 ((100-15) / (100)) m
 Rewriting we have:
 ((85) / (100)) m
 0.85m
 Answer:
 
the value of his car the year after the car is worth m dollars is:
 
B.f (m) = 0.85m
5 0
3 years ago
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