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IrinaK [193]
3 years ago
15

What must be added to 3x -7 to make x2 + 4x -1?

Mathematics
2 answers:
zlopas [31]3 years ago
7 0

The term that can be added is the difference between the two expressions you have:

x^2+4x-1-(3x-7)

x^2+4x-1-3x+7

x^2+x+6

qwelly [4]3 years ago
4 0
You must add x^2 + x + 6
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photoshop1234 [79]
The answer is 2 meters.

8 0
3 years ago
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Please help<br> log(8)10 - log(8) -3x = 1
True [87]

Answer: x=2.375937.... sorry I give you the wrong one but here the steps O here x=2.96423 will it can be any one of the two answer I give you now.

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8 0
2 years ago
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If k is a positive integer and n = k(k + 7), is n divisible by 6 ? (1) k is odd. (2) When k is divided by 3, the remainder is 2.
olganol [36]

Answer:

1.) Yes

2.) Yes

Step-by-step explanation:

Given that

n = k(k + 7)

If k is a positive integer and n = k(k + 7), is n divisible by 6 ?

(1) k is odd. Yes.

Let assume that k = 3

Then, n = 3(3 + 7)

n = 3 × 10

n = 30.

30 is divisible by 6.

(2) When k is divided by 3, the remainder is 2. That is,

Let k = 5

Then,

5/3 = 1 remainder 2

Substitute k into the equation

n = k(k + 7)

n = 5(5 + 7)

n = 5 × 12

n = 60

And 60 is divisible by 6.

Therefore, the answer to both questions is Yes.

5 0
3 years ago
An electrician charges a $100 flat fee, plus $75 per hour to work on a house.
jek_recluse [69]

Answer:

y=75x+100

Step-by-step explanation:

8 0
2 years ago
How Can you divide that
Archy [21]
First you ask yourself, can 8 go into 1?  The answer is no.  Can 8 go into 12? Yes, 1 time.  So you put 1 on top of the 2 and subtract 8 from 12.  That gives you 4.  Then you pull down the 8 from 128 and ask how many times can 8 go into 48?  The answer is 6.  So your answer is 16.  Hope I helped!

6 0
3 years ago
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