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WARRIOR [948]
4 years ago
8

Is -¼ + 2 ¼y + 2 - y equivalent to y + 2 ?

Mathematics
1 answer:
Juliette [100K]4 years ago
5 0

Answer: No

Step-by-step explanation:

-\frac{1}{4}+2\frac{1}{4}y+2-y=y+2

(-\frac{1}{4}+2)+(2\frac{1}{4}y-y)=y+2\\

(\frac{(-1)+(4)(2)}{4})+(\frac{9}{4}y-y)=y+2

(\frac{-1+8}{4})+(\frac{(9)(1)-(4)(1)}{4} )y=y+2

(\frac{7}{4})+(\frac{9-4}{4} )y=y+2

(\frac{7}{4})+(\frac{5}{4})y=y+2

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Answer:

61

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3 years ago
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Use the function f(x) = 4x² - 7x - 15 to answer the questions.
makkiz [27]

Step-by-step explanation:

Part A:

4x² - 7x - 15

a, b, c = 4, -7, -15

ac = -60

factors that add up to -7 and multiply to -60 are (-12, 5)

rewrite equation

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factor out GCF from both groups

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Part B:

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the two x-intercepts are -5/4 and 3

Part C:

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8 0
2 years ago
What two numbers have a product of -49 and a sum of 0?
Igoryamba

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Step-by-step explanation:

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3 years ago
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Help me with this please
lutik1710 [3]
<h3>Answer:</h3>

4.42×10^34 molecules/min

<h3>Step-by-step explanation:</h3>

Multiply the various factors, along with the unit conversion (60 s/min).

... (3.35×10^25 molecules/L) × (2.2×10^7 L/s) × (60 s/min)

... = (3.35×2.2×60)×10^(25+7) molecules/min

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<em>Comment on scientific notation problems</em>

Your scientific or graphing calculator will allow you to enter and display numbers in scientific notation.

7 0
4 years ago
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4 years ago
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