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Phantasy [73]
3 years ago
5

I need help with numbers six and seven of mu geometry homework !!!

Mathematics
1 answer:
alex41 [277]3 years ago
8 0
6)1.yes 2. no 3. yes 4.yes
i have figured out seven yet ill get back to you
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densk [106]

Answer:

(-3, -6)

explanation:

When reflected across x axis, the x value will be same and y value will become negative.

original coordinates of D: (-3, 6)

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2 years ago
What is the effect if two parallel lines are rotated 90° clockwise?
Fed [463]

Answer:

the first one

Step-by-step explanation:

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2 years ago
4x²-y²=171 and 2x-y=9, value of 2x+y
11111nata11111 [884]
So you will need to solve for x and y before evaluating 2x+y....

2x-y=9, y=2x-9  now this will make 4x^2-y^2=171 become:

4x^2-(2x-9)^2=171

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2(7)-y=9

14-y=9

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y=5

now we know that x=7 and y=5, 2x+y becomes:

2(7)+5

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8 0
3 years ago
translate the sentence into an equation. the sum of 4 times a number and 8 equals 7. use the variable c for the unknown number
jek_recluse [69]

Answer: 4× 8c = 7

Step-by-step explanation:

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3 years ago
15. A student received a 75% on an exam. If there were 20 questions on the exam, which ratio would show the number of questions
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Answer:

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Ratio - 15:20 (A)

3 0
2 years ago
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