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3 years ago

10

Point K lies at (-3,4). Point K is reflected over the y-axis and then translated 7 units down to produce K’. Which rule could ha

ve been used to produce K’ from K?

2 answers:

Nataly_w [17]3 years ago

4 0

Answer: B

Step-by-step explanation:

statuscvo [17]3 years ago

3 0

Answer:

K(x,y) →K'(-x, y-7) (B)

Step-by-step explanation:

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The perimeter of the rectangle is 80 cm. The area of the rectangle is acm2 . (i) show that x 2 40x + a = 0.

erica [24]

Answer:

Proved

Step-by-step explanation:

Given

$p = 80$ ---- perimeter

$a \to area$

Required

$x^2 + 40x + a = 0$

The perimeter is calculated as:

$p = 2(x + y)$

Where

$x,y \to$ the rectangle dimension

So, we have:

$2(x + y) = 80$

Divide by 2

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Make y the subject

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Equate to 0:

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Step-by-step explanation:

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11. Two students describe how to solve the equation, 23+n=29 . Student A says to add 23 to both sides, while Student B says to s

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Answer:

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Step-by-step explanation:

the 23 is a positive # so you would not add but subt.

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Read 2 more answers