3 years ago

What is the algebraic expression for the difference between nine times a number and four more than six times the number?

Mathematics

1 answer:

Mazyrski [523]3 years ago

7 0

Answer:

9n-(6n+4)

Step-by-step explanation:

n is number

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What is f(x) = 2x2 + 28x – 5 written in vertex form? f(x) = 2(x + 7)2 – 19 f(x) = 2(x + 7)2 – 103 f(x) = 2(x + 14)2 – 14 f(x) =

padilas [110]

Answer:

f(x)=2(x+7)^2-103

Step-by-step explanation:

$f(x)=2x^{2} +28x-5\\=2(x^2+14x)-5\\=2(x^2+2(7)x+7^2-7^2)-5\\=2(x+7)^2-2(49)-5\\=2(x+7)^2-103$

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4 years ago

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Ne4ueva [31]

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3 years ago

Ashley is preparing for a horse riding competition. She has trained her horse for 5 hours and has completed 165 rounds. At what

Oliga [24]

Answer:33

Step-by-step explanation:

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3 years ago

Write an equation for a line with a slope of 5 and y-inter of -3

Daniel [21]

Answer:

y=5x-3

Step-by-step explanation:

y=mx+b where m=slope and b= y-intercept

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3 years ago

Ivan and Tanya share £150 in the ration of 4:1

Zarrin [17]

Answer:

Money Ivan gets extra = 120 - 30 (or 3x) = 90

Step-by-step explanation:

Ivan = 4x

Tanya = 1x

Total = 150

4x + x = 150

5x = 150 ; x = 150 / 5 = 30

Ivan = 4x = 120

Tanya = 1x = 30

Money Ivan gets extra = 120 - 30 (or 3x) = 90

8 0

3 years ago