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Serggg [28]
2 years ago
10

Which two expressions are equivalent? *

Mathematics
2 answers:
pav-90 [236]2 years ago
8 0
Answer:
21x + 14 and 7(3x + 2)
9x2 + 9x + 5 and 18x2 + 5
are equivalent
oksano4ka [1.4K]2 years ago
4 0
I really don’t know sorry
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F(x)=(x−6) 2 −12.25 What are the zeros of the function? What is the vertex of the parabola?
ollegr [7]

Answer: Zeroes: 2.5 and 9.5   Vertex: (6, 12.25)

Step-by-step explanation:

:) Done on khan

7 0
1 year ago
Derman says, "I'm halfway through reading my book.if I read another 84 pages, I'll be two thirds of the way through my book." ho
Licemer1 [7]
I would say 504 basing it off of converting 2/3 into 4/6 and used sets of 84 to each be 1/6
6 0
3 years ago
He gave out half of the cookies in the morning. At lunch, he gave out 14 more. He then had 8 cookies left. How many cookies did
Vsevolod [243]

Answer:

44 cookies

Step-by-step explanation:

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3 0
2 years ago
Objects A and B are in harmonic motion modeled by
Zepler [3.9K]

Answer:

The phase difference between yA and yB is  \frac{-\pi }{12}

Step-by-step explanation:

Given harmonic modeled as :

yA = 8 sin(2t  - \frac{\pi }{3})         And

yB = 8 sin(2t  - \frac{\pi }{4})

The function as written as :

y = a sin(ωt  - Ф)  where  Ф is phase difference

So , phase difference between yA   and  yB = ( Ф_1 - Ф_2 )

Or phase difference between yA   and  yB = ( -  \frac{\pi }{3} + \frac{\pi }{4} )

Or, phase difference between yA   and  yB = (\frac{-4\pi +3\pi }{12})

I.e phase difference between yA   and  yB =\frac{-\pi }{12}

Hence The phase difference between yA and yB is \frac{-\pi }{12}   Answer

4 0
3 years ago
Read 2 more answers
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Irina18 [472]
If this an angle on a straight line the answer is k=73°
8 0
3 years ago
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