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3 years ago

I need help for this questinon

Mathematics

2 answers:

MAXImum [283]3 years ago

6 0

Answer:

a. Rhombus ABDC is congruent to rhombus A'B'C'D

Step-by-step explanation:

the area/angles of ABCD did not change after rotation(becoming A'B'C'D)

alexgriva [62]3 years ago

3 0

Answer:

Explaination: you are just rotating the rhombus

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Identify the frequency of the graph

olya-2409 [2.1K]

ANSWER

$\frac{1}{2}$

EXPLANATION

The frequency of a wave function refers to the number of times the graph repeats its cycle within the interval [0,2π]

We can observe explicitly from the graph that the frequency is half.

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3 years ago

There is a vendor at a carnival selling bags of cotton candy. Each bag of cotton candy has the same cost. She starts each day wi

umka21 [38]

Answer:

The cost of each cotton candy bag is $4.

Step-by-step explanation:

Consider the provided information.

Let, the vendor has $x$ dollar at the starting of each day.

Let, the cost of each cotton candy bag is $y$ .

Now when she sells a total of 12 bags, she has $128.

$x+12y=128$ .....(1)

After she sells a total of 20 bags, she has $160.

$x+20y=160$ ....(2)

Subtract equation 1 from equation 2.

$(x+20y)-(x+12y)=160-128$

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