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ollegr [7]
3 years ago
10

Pentagon ABCDE is rotated 90 degrees counterclockwise about the origin to form pentagon A’ B’ C’ D’ E’. What is the y-coordinate

if point C’?

Mathematics
2 answers:
Nat2105 [25]3 years ago
7 0

Answer:

4

Step-by-step explanation:

Hope this helped!

Sophie [7]3 years ago
5 0

Answer:

4

Step-by-step explanation:

<em>When rotating a point 90 degrees counterclockwise about the origin the  point A(x,y) becomes A'(-y,x). </em>

Point C has coordinates of (4, 3)

New coordinates will be C'(-3, 4)

<u>So the answer is:</u>

y-coordinate of C' is 4

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Answer:

Parent function: y = sin(x)

Transformations:

1) horizontal translation of pi units towards left

2) stretch parallel to y-axis with factor "2'

3) vertical translations of 1 unit downwards

Range: [-3 , 1]

Step-by-step explanation:

Parent function: y = sin(x)

Transformations:

1) horizontal translation of pi units towards left

2) stretch parallel to y-axis with factor "2'

3) vertical translations of 1 unit downwards

Sketch the graph using 5 points listed below:

1) (0, -1)

2) (pi/2, -3)

3) (pi, -1)

4) (3pi/2, 1)

5) (2pi, -1)

Range: [-3 , 1]

3 0
3 years ago
Multiply these -3/7 times by 3/8
Kitty [74]

Answer: -\frac{9}{56}

Step-by-step explanation:

multiply these -3/7 times by 3/8: Answer is -9/56

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2 years ago
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3 0
3 years ago
Roslan had a total of $50 in 10-cent coins,20-cent coins and 50-cent coins. The value of his 10-cent coins was 30% of the total
Len [333]

Answer:

$21

Step-by-step explanation:

Provided total value = $50

$50 = 5,000 cents.

We are provided,

10 cent coins value = 30%  of total value

= 0.3 \times 5,000 cents = 1,500 cents

Value of 20 cents coin = 28% of total value

= 0.28 \times 5,000 cents = 1,400 cents

Therefore, remaining value of cents = Total value of 50 cents coins

5,000 cents - value of 10-cent coins - value of 20-cent coins = total value of 50 cents coins

5,000 - 1,500 - 1,400 = 2,100 cents = $21

Which means number of 50 cents coin = \frac{2,100}{50} = 42\ coins

Alternatively,

To calculate value of 50 cent coins

Total value = 100%

Value in 10-cent coins + 20-cent coins = 30% + 28% = 58%

Value in 50-cent coins = 100 - 58 = 42%

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4 0
3 years ago
What number us 17 less than the product of 7 and 11
m_a_m_a [10]

77 is the product of 7 and 11 (Multiply them)

77 - 17 = 60

Hope this helped!

3 0
3 years ago
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