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Ahat [919]
3 years ago
7

Does the equation t degree straight C equals left parenthesis 32 plus 1.8 t right parenthesis degree straight F work for any rat

ional number? Check that it does with t equals 8 2 over 3 and t equals negative 8 2 over 3.
Evaluate the right side of the equation when t equals 8 2 over 3.



Do not include units (degrees Fahrenheit) in your answer.





x =?
Mathematics
1 answer:
lorasvet [3.4K]3 years ago
5 0

Answer:

  • 16.4 for t = -8 2/3
  • 47.6 for t = 8 2/3

Step-by-step explanation:

We assume you want to evaluate the equation ...

  T = 32 +1.8t

for t = -8 2/3 and t = 8 2/3

The evaluation involves addition and multiplication, both of which are closed for all real numbers, which includes all rational numbers. The equation works for any rational numbers.

Your examples:

  T = 32 +1.8(-8 2/3) = 32 -15.6 = 16.4 . . . . the equation works

  T = 32 +1.8(8 2/3) = 32 +15.6 = 47.6 . . . . the equation works

_____

<em>Additional comment</em>

Some calculators play nicely with decimals and mixed numbers.

The product 1.8(8 2/3) can be found as ...

  (1.8)(8 2/3) = 1.8(26/3) = 0.6(26) = 15.6

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</span>                                      -8x² +4x  +3                -8x²/2x² = -4
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6 0
3 years ago
Find the value of x
sveticcg [70]

Answer:

<h2>          x = 15</h2>

Step-by-step explanation:

RQ < PR < PQ

TV < UV < UT

ΔPQR~ΔUTV   ⇒     \dfrac{RQ}{TV}=\dfrac{PR}{UV}

\dfrac{8}{x-3}=\dfrac{14}{x+6}\\\\8(x+6)=14(x-3)\\\\8x+48=14x-42\\\\48+42=14x-8x\\\\90=6x\\\\x=90:6=15

6 0
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Correct option is D. An unexpected result occurs during the initial phase of a study; the study is modified in response to this result and the results are interpreted and evaluated.

The writer begins this passage by stating that the ability of birds to fly has long been a source of debate among scientists.

The article then goes on to explain that when a group of students challenged Ken Dial to come up with new data on this hotly debated topic, he devised an experiment to study the evolution of flight by observing how baby Chukars learn to fly. Dial noted the unusual way the little Chukar "used its wings and legs cooperatively" to climb over hay bales during the experiment. Following that, he devised a series of experiments to investigate his discovery.

<h3>Below is the passage mentioned in the question is from Thor Hanson, Feathers by Thor Hanson - </h3>

" At field sites around the world, Ken Dial saw a

pattern in how young pheasants, quail, tinamous,

and other ground birds ran along behind their

parents. “They jumped up like popcorn,” he said,

5 describing how they would flap their half-formed

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to come up with new data on the age-old

ground-up-tree-down debate, he designed a project

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Ken called the technique WAIR, for wing-assisted

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To learn more about passages from the given link

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7 0
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For a certain weekend, the weatherman predicts that it will rain with a 40% probability on Saturday and a 50% probability on Sun
melomori [17]

Answer:

70%

Step-by-step explanation:

The probability it rains on at least one of the days is:

P = P(Sat & not Sun) + P(Sun & not Sat) + P(Sat & Sun)

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Another way to look at it is 1 − the probability that it doesn't rain on either day.

P = 1 − P(not Sat & not Sun)

P = 1 − (1−0.40)(1−0.50)

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