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Kipish [7]
3 years ago
8

V=Xf; speed = wavelength x frequency

Mathematics
1 answer:
TEA [102]3 years ago
4 0
I don’t understand your questions because it’s all connected together. Could you maybe separate the actual question in the comments for me to help?
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A wedding planner uses 72 ivy stems for 18 centerpieces when she arrives at the venue she realizes she will only need 16 centerp
beks73 [17]

Answer:

64 ivy stems

Step-by-step explanation:

To solve this problem we can use rule of three:

Firstly we had 72 ivy stems to use in 18 centerpieces, and know we have 16 centerpieces and want to know how many ivy stems we need to use, so:

18 centerpieces -> 72 ivy stems

16 centerpieces -> X ivy stems

18/16 = 72/X

X = 16*72/18 = 64

He needs to use now 64 ivy stems to maintain the ratio.

6 0
3 years ago
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What is the simplified value of the expression below?
polet [3.4K]

Answer:

C. 9

Step-by-step explanation:


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3 years ago
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Select the polynomial that is a perfect square trinomial.
Alina [70]

Answer:

  16x^2 -8x +1

Step-by-step explanation:

The square of a binomial expands as ...

  (a +b)^2 = a^2 +2ab +b^2

So, you need to look for a trinomial with first and last terms that are perfect squares and a middle term that is double the product of the roots of those terms.

This pattern matches ...

  16x^2 -8x +1 = (4x -1)^2

6 0
3 years ago
What is the least common multiple (LCM) of 7 and 8? will give brainlest if answered in 1 minute
attashe74 [19]

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56.

Step-by-step explanation:

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