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Whitepunk [10]
3 years ago
7

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

r is the melting point of mercury than the freezing point of alcohol?
Mathematics
2 answers:
vampirchik [111]3 years ago
6 0
-39°C  is  <em>75 Celsius degrees</em> "warmer" than  -114°C . . .
if you could call either one "warm".

( 75 Celsius degrees warmer is the same as 135 Fahrenheit degrees warmer.)
stiv31 [10]3 years ago
4 0
The problem is worded a bit confusing, but think of it as if -39 degrees celcius is the freezing point for mercury. The solution is: 75 degrees Celcius.
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Fred bought 5 liters of liquid laundry detergent, 3,270 millimeters of fabric softener, and 2.6 liters of bleach
valentinak56 [21]

Answer:

i don't get what you need answered in this????

Step-by-step explanation:

7 0
3 years ago
Perform the indicated operation and write the result in the form a+bi:<br><br> (4/7 - i)(8/7 + 7/5i)
aivan3 [116]

We will apply the "FOIL" method for multiplying two binomials. In this method you will:

  1. Multiply the First terms of each binomial
  2. Multiply the Outside terms of each binomial
  3. Multiply the Inside terms of each binomial
  4. Multiply the Last terms of each binomial
  5. Add all of the new terms you have just found together

The mathematical representation of the FOIL method is shown as:

(a + b)(c + d) = ac + ad + bc + bd


Let's apply the FOIL method.

  1. The first two terms of each binomial are \frac{4}{7} and \frac{8}{7}. Multiplied together, we find the new term of \frac{4}{7} \cdot \frac{8}{7} = \frac{4 \cdot 8}{7 \cdot 7} = \frac{32}{49}.
  2. The outside two terms are \frac{4}{7} and \frac{7}{5} i. Multiplied together, these two terms are \frac{4}{7} \cdot \frac{7}{5}i = \frac{4 \cdot 7}{7 \cdot 5}i = \frac{28}{35}i.
  3. The inside two terms are -i and \frac{8}{7}. Multiplied together, these two terms are - \frac{8}{7} i.
  4. The last two terms are -i and \frac{7}{5} i. Multiplied together, these two terms are -i \cdot \frac{7}{5}i = -\frac{7}{5} i^2. Remember though that i^2 = 1, so our new term is actually \frac{7}{5}.
  5. Added together, we get: \frac{32}{49} + \frac{28}{35} i - \frac{8}{7} i + \frac{7}{5} = \frac{160}{245} + \frac{196}{245}i - \frac{280}{245}i + \frac{343}{245} = \frac{503}{245} - \frac{84}{245} i = \frac{503}{245} - \frac{12}{35}i.

Our final answer is \boxed{\frac{503}{245} - \frac{12}{35}i}.

7 0
3 years ago
1
Galina-37 [17]

Answer: B. Ryder had $6.25. He needs to buy school supplies and ends up owing his mother $2.50

Step-by-step explanation: The number line only has single digits and every other answers have extreme changes while B has the lowest change that fits in the number line.

5 0
3 years ago
Which function is the inverse of f(x) = 2x + 3 ?<br> Help
bearhunter [10]

Answer:

The inverse is 1/2x -3/2

Step-by-step explanation:

y =2x+3

Exchange x and y

x = 2y+3

Solve for y, subtracting 3 from each side

x-3 = 2y+3-3

x-3 =2y

Divide each side by 2

(x-3)/2 = 2y/2

1/2x - 3/2 =y

The inverse is 1/2x -3/2

7 0
3 years ago
Read 2 more answers
How do I solve this step by step?
Mashcka [7]
First step : 2(2))+5\2 -2(2))+3\2 =9\2 -7\2 =2\2 =1
5 0
3 years ago
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