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Andrei [34K]
3 years ago
13

Simplify ; 7a+4b+7a-3b

Mathematics
2 answers:
Afina-wow [57]3 years ago
8 0
14a+b is the correct answer
LuckyWell [14K]3 years ago
8 0
The answer is 14a+b
You need to add the like terms together: 
7a+7a=14a
4b-3b=b (1b is the same as "b" but 1b is sloppy)
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8 0
3 years ago
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Simplify (square root 2)(3 square root of 2)
lorasvet [3.4K]

\sqrt{2} (3\sqrt{2} )

Here we can simplify the product by multiply the square root 2 with square root 2 first.

3*\sqrt{2} \sqrt{2}

=3*2

=6

So answer is 6

4 0
3 years ago
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In what instance would you use the upside down U when doing interval notation
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8 0
3 years ago
Two opposite sides of a rectangle are each of length x. If the perimeter of the rectangle is 12, then the area, as a function of
Reil [10]

Answer: x(6-x)

Step-by-step explanation:

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The perimeter of the rectangle is 12 units.

Perimeter of rectangle is given by :-

P=2(\text{Sum of adjacent sides})\\\\\Rightarrow\ 12=2(x+y)\\\\\Rightarrow\ x+y=\dfrac{12}{2}=6\\\\\Rightarriow\ y=6-x

The area of rectangle is given by :-

A=\text{product of two adjacent sides}\\\\\Rightarrow\ A=xy=x(6-x)

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7 0
3 years ago
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2) A pair of jeans costs $80. The store is having a sale for 30% off. What would
Viefleur [7K]

Answer:

$56

Step-by-step explanation:

$80 x .3 = $24

$80 - $24 = $56

You can also do $80 x .7 = $56.

Hope that helps!

7 0
3 years ago
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