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Nitella [24]
3 years ago
11

Which of the following descriptions represents the transformation shown in the image​

Mathematics
2 answers:
Crazy boy [7]3 years ago
8 0

Answer:

the answer is B im pretty sure

Step-by-step explanation:

Viktor [21]3 years ago
7 0

Answer:  A. 270° rotation, 3 units left, and 2 units up

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

C = (1, 1)        D = (3, 3)          E = (2, -2)

270° rotation counterclockwise means (x, y) = (y, -x)

new C = (1, -1)        new D = (3, -3)         new E = (-2, -2)

3 units left means subtract 3 from the x-coordinate

newer C =( -2, -1)        newer D = (0, -3)      newer E = (-5, -2)

2 units up means add 2 to the y-coordinate

C' = (-2, 1)       D' = (0, -1)       E' = (-5, 0)

Since the first option worked, there is no need to check the other options.

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What is the sum of all of the perfect squares between
Nonamiya [84]

Answer:

(-138) is the answer.

Step-by-step explanation:

Perfect square numbers between 15 and 25 inclusive are 16 and 25.

Sum of perfect square numbers 16 and 25 = 16 + 25 = 41

Sum of the remaining numbers between 15 and 25 inclusive means sum of the numbers from 17 to 24 plus 15.

Since sum of an arithmetic progression is defined by the expression

S_{n}=\frac{n}{2}[2a+(n-1)d]

Where n = number of terms

a = first term of the sequence

d = common difference

S_{8}=\frac{8}{2} [2\times 17+(8-1)\times 1]

   = 4(34 + 7)

   = 164

Sum of 15 + S_{8} = 15 + 164 = 179

Now the difference between 41 and sum of perfect squares between 15 and 25 inclusive = 41-179

= -138

Therefore, answer is (-138).

7 0
2 years ago
Find allgebraiclly the equation of the axis of symmetry and the vertex of the parabola represented by the equation y=-x2-2x+1
Slav-nsk [51]
To find the vertex use -b/2a (for the x value which is also the axis of symmetry)
So 2/-2 = -1 Therefore the axis of symmetry is x=-1 Plug in for the y value:
y= -(-1)^2 -2(-1) + 1 y=-1 + 2 + 1 y=2 Vertex (-1,2)
7 0
3 years ago
Read 2 more answers
The value of the square root of -4 is not -2 because?
Anarel [89]

A) (-2)² ≠ -4 is your answer



Explanation:

(-2)² = (-2)(-2)


(-2) x (-2) = 4


∴ A) (-2)² ≠ -4



hope this helps

7 0
2 years ago
What points are on the graph -3x+6y+5=-7
Simora [160]
The slope 1/2 y -intercept -2
8 0
3 years ago
Marisol has enough tile to cover a square portion of her patio with an area of 225 ft2. What will be the side lengths of her des
Anit [1.1K]

Answer:

Side lengths = 15 ft²

Step-by-step explanation:

Given:

Area of square = 255 ft²

Find:

Side lengths

Computation:

Area of square = side x side

Area of square = 255 ft²

Side lengths = √Area of square

Side lengths = √255

Side lengths = 15 ft²

4 0
3 years ago
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