3 years ago

Which two operations are needed to write the expression that represents “four times the difference of a number and three”?

Mathematics

2 answers:

frutty [35]3 years ago

7 0

Answer:

multiplication and subtraction

Step-by-step explanation:

omeli [17]3 years ago

6 0

Answer:

Step-by-step explanation: Edge 2020

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Write an expression for "8 times z."

garri49 [273]

Answer: 8z 8(z)

Explanation: well 8 times z is simply 8(z)I don’t really think there is another way

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3 years ago

How do I solve this?

ziro4ka [17]

Answer:

YZ= 2.8

Step-by-step explanation:

3n+5=8n-9

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+9. +9

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14÷5

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3 years ago

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NARA [144]

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3 years ago

Equal set is equivalent set but equivalent set not need equal set? why

nasty-shy [4]

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3 years ago

Solve by completing the square x^2-6x-4=0

Vesna [10]

Answer:

x = 3 ± $\sqrt{13}$

Step-by-step explanation:

x² - 6x - 4 = 0 ( add 4 to both sides )

x² - 6x = 4

To complete the square

add ( half the coefficient of the x- term)² to both sides

x² + 2(- 3)x + 9 = 4 + 9

(x - 3)² = 13 ( take square root of both sides )

x - 3 = ± $\sqrt{13}$ ( add 3 to both sides )

x = 3 ± $\sqrt{13}$

6 0

2 years ago