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Alina [70]
3 years ago
15

⚠️ Show work for points ⚠️

Mathematics
1 answer:
Nikitich [7]3 years ago
4 0

Answer:

D

Step-by-step explanation:

A is not, because 2-5x = -5x+2

(nothing has changed but the order)

B is not, because 3-5+2x = 2x-2

because 3-5 = -2. so -2+2x can be rewritten as 2x-2.

C is not, because 5x-2x = 3x

because you combine like terms, and 5-2 is 3

D <em>i</em><em>s</em><em>,</em> because 2x-2+3x = 5x-2

because you combine like terms (2x+3x=5x) and -2 is left.

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Jane wishes to bake an apple pie for dessert. The baking instructions say that she should bake the pie in an oven at a constant
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Answer:

A=152

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Step-by-step explanation:

You can obtain two equations with the given information:

T(14 minutes) = 114◦C

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Therefore, you have to replace t=14, T=114 and t=28, T=152 in the given equation:

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Applying the following property of exponentials numbers in (II):

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Therefore e^{-28k} can be written as e^{-14k}.e^{-14k}

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Replacing (I) in the previous equation:

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Subtracting 190 both sides, dividing by -76:

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k= -Ln(0.5)/14

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7 0
3 years ago
4) Allison practices her violin for at least 12 hours per week. She practices for three fourths of an hour each
zaharov [31]

Answer:

12

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This means she has 9 hrs left to practice.

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which is basically 9 / ( 3/4)

\frac{9}{3/4}=\frac{9}{1} / \frac{3}{4}  = \frac{9}{1} * \frac{4}{3} = \frac{36}{3}  = 12

She needs 12 more sessions.

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