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fgiga [73]
3 years ago
10

Help please on this problem

Mathematics
1 answer:
iVinArrow [24]3 years ago
8 0

Answer:

7.5 hours

Step-by-step explanation:

We can model an equation for this problem.

We can write:

F=mt

Where

F is the final temperature (15 degrees we need)

m is the rate of temperature change (2 degrees per hour)

and

t is the time, in hours, it will take (we need to find this)

It is given,

F = 15

m = 2

So, t would be:

F = mt

15 = 2t

t = 15/2 = 7.5

So it will take 7.5 hours

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Answer:

y=3x+4

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Step-by-step explanation:

7 0
3 years ago
rotation of 90 degrees counterclockwise about the origin, point O, then a reflection across the x-axis reflection across the y-a
SpyIntel [72]

Answer:

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(x,-y) =(y,x)

Then Reflection across X axis has taken place.

(-y,x) = (-y,-x)

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(y,-x)=(y,x)

(y,x)=(y,-x)

Then a reflection across the y-axis has taken place.

(-y,-x)=(y,-x)

(-y,x) = (y,x)

(y,x) =(-y,x)

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Then a translation a units to the right and b units up has taken place.

(y,-x)=(y+a,-x+b)

(y,x) =(y+a, x+b)

(-y,x) =(-y+a,x+b)

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Then a rotation of 180 degrees counterclockwise about the origin has taken place.

(y+a,-x+b)=[-(y+a),-(-x+b)]

(y+a, x+b)=[- (y+a), -(x+b)]

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Now Again a reflection across the Y axis has taken place.

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[-(y+a),-(x+b)]=[(y+a),-(-x+b)]

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[-(-y+a),-(-x+b)]=[(-y+a),-(-x+b)]

Totally depends on value of a and b on which quadrant these point lies.



7 0
3 years ago
Is it possible for a system to have more than one solution? Explain your answer
Anastasy [175]
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The frame is being enlarged to hang on a gallery wall. Using the scale factor of 1in=2.5ft., give the new dimensions of the outs
nydimaria [60]
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Cameron is building a model of the Eiffel Tower
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Answer:

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Step-by-step explanation:

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