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horrorfan [7]
3 years ago
15

Over a period of 3 hours, the outside temperature changed an average of -2.25 fahrenheit per hour. select the correct sentence t

hat represents this situation.
the temperature decreased by 2.25 degrees fahrenheit from the beginning to the end of the 3-hour period.

the temperature increased by 0.75 degrees fahrenheit from the beginning to the end of the 3-hour period.

the temperature increased by 6.75 degrees fahrenheit from the beginning to the end of the 3-hour period.

the temperature decreased by 6.75 degrees fahrenheit from the beginning to the end of the 3-hour period.
Mathematics
2 answers:
Kruka [31]3 years ago
7 0

<u>Answer:</u>

<em>The temperature decreased by 6.75 degrees Fahrenheit.</em>

<u>Step-by-step explanation:</u>

<em>This is answer choice D because the Start of Temperature is: </em>

<em>70F</em>

<em>Start Time: 9AM</em>

<em>(70,9) --> (67.75,10) --> (67.50,11) --> (67.25, 12)</em>

enyata [817]3 years ago
4 0

Answer:

D

Step-by-step explanation:

-2.25 x 3 = 6.75

the temperature decreased by 6.75 after 3 hours

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Jonas weight 63 pounds. jane weight 67 pounds. round each number to the nearest ten.
IrinaVladis [17]

Answer:

Jonas = 60 pounds

Jane = 70 pounds

Remember- 5 or more, raise the score. 4 or less, let it rest.

Jonas is 63 pounds. 3 is less than 4, so rounded to the nearest ten would be 60 pounds.

Meanwhile, Jane is 67 pounds. 7 is more than 5, so we will raise the score.

So, 67 rounded to the nearest ten would be 70.

You have your answers. 60 and 70. Hope this helps!

4 0
3 years ago
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Determine if the function is an even function, an odd function or neither. y=-5x^2-2x+6
Arlecino [84]

Answer:

Neither even nor odd

Step-by-step explanation:

The graph of y = -5x^2 - 2x + 6 is that of a parabola that opens down.  This function is neither even nor odd because a point chosen at random is neither reflected in the y-axis nor reflected in the origin.

7 0
3 years ago
The point P(18, 24) is on the terminal side of θ. Evaluate sin θ.
serious [3.7K]
<span>sin θ = opposite/hypotenuse
P(18,24) lies in the first quadrant as both are positive.
x=18
y=24
Hypotenuse  = sqrt (18^2 + 24^2)
</span><span>Hypotenuse = 30
</span><span>sin θ = 24/30
</span><span>sin θ = 4/5
</span>θ = sin^-1 (4/5) 
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7 0
3 years ago
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a plumber charges an initial fee of $200 plus an hourly fee of $50. Mr.Collins paid the plumber $450. How many hours did the plu
Advocard [28]
The plumber worked for 5 hours because 450-200=250 which gets rid of the initial fee so 250 divided by 50 is 5
8 0
3 years ago
Y=52(0.42)^x identify if it's growth or decay and determine the percentage rate of increase or decrease
Shkiper50 [21]

Answer:

58%

Step-by-step explanation:

Given the exponential relation :

Y=52(0.42)^x

Since 0.42 is less than 1, then we can infer that the expression is a Decay function ;

. General form of a exponential function :

y = A(1 - r)^x ; r = Decay rate

Comparing the general equation with the equation given ;

The percentage rate of decrease is obtained thus :

1 - r = 0.42

1 - 0.42 = r

r = 0.58

Rate = 0.58 * 100%

Rate = 58%

4 0
3 years ago
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