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GrogVix [38]
3 years ago
12

On a chilly afternoon in New Jersey, the temperature was 4 degrees Fahrenheit. By nightfall, the temperature dropped 9 degrees F

ahrenheit. What is the temperature at nightfall in degrees of Fahrenheit?
Mathematics
2 answers:
Dovator [93]3 years ago
8 0
-3 degrees Fahrenheit
xeze [42]3 years ago
4 0
-3 degrees Fahrenheit
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emmasim [6.3K]
Add 7 to the other side.
-13+7=-h
-6=-h
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Euclid Street branches out into Pythagoras Street and Hipparchus Street such that Pythagoras Street is perpendicular to Hipparch
boyakko [2]

Answer:

x=30 y=60 z=120

Step-by-step explanation:

euclid is 180° 180-150=30

x and y are at a 90° angle 90-30=60

the full circle is 360dgrees back around to euclid

180-60=120°

always look for 90°s or 180°s when doing these problems

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2 years ago
David and denise share n pears in the ratio of 4:9. if N=39 how many pears does denise have
OlgaM077 [116]
4 + 9 = 13.
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3 years ago
Classify the following random variables as discrete or continuous:X: the number of automobile accidents per year in Virginia. Y
Elena-2011 [213]

Answer:

X: discrete

Y: continuous

M: continuous

N: discrete

P: discrete

Q: continuous

Step-by-step explanation:

First, we have to know the difference between discrete and continuous variables:

  • Discrete variables are those that represent things that are counted, 3 red cars, 2 chickens, etc.. They take positive integer values, {0, 1, 2, ..., n}, being [0, n] the interval from which the variable takes values, that means, there is a finite number of possible values.
  • Continuous variables are those that represent things that are measured, 3.56 km of railway laid, 5.77 l of paint used. They take positive real values, that means that in the interval used for the variable there are infinite possible values.

Now, we classify each variable:

  1. The number of automobile accidents per year in Virginia (X) is a discrete variable, as there can't be half an accident, one counts how many accidents are per year to know X.
  2. The length of time to play 18 holes of golf (Y) is a continuous variable, as it can take 2 hours, or 2.5 hours, or 2 hours, 30 minutes, 2 seconds, one measures how long it took to play 18 holes to know Y.
  3. The amount of milk produced yearly by a particular cow (M) is a continuous variable, as one measures how much milk was produced to know M.
  4. The number of eggs laid each month by a hen (N) is a discrete variable, as one counts how much eggs were laid to know N.
  5. The number of building permits issued each month in a certain city (P) is a discrete variable, as one counts how many permits were issued to know P.
  6. The weight of grain produced per acre (Q) is a continuous variable, as one measures the weight per acre to know Q.
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4 years ago
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