3 years ago

How do you simplify this expression then evaluate it if x=2? 5x - 2 + 3 - x

1 answer:

7 0

You just put all of the like terms together, if it has an X combine it and if it doesn't have an X combine it. You end up with 4x-5

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wel

Sin(a+/-b)=sin(a)cos(b)+/-cos(a)sin(b)

sin(17+26)=sin(17)cos(26)+cos(17)sin(26)

Answer: sin(43)

7 0

2 years ago

ddd [48]

Let b be the initial amount of books. Steve sells half of his books, so the number of Steve's books become

$b \to \dfrac{b}{2}$

Then, he buys 6 more, so the number increases by 6:

$\dfrac{b}{2} \to \dfrac{b}{2}+6$

This number is now 14, so you have

$\dfrac{b}{2}+6 = 14$

Subtract 6 from both sides:

$\dfrac{b}{2} = 8$

Multiply both sides by 2:

$b = 16$

4 0

2 years ago

Murrr4er [49]

$0.79

Just divide 9.48 by 12.

4 0

3 years ago

Ulleksa [173]

Has to multiply I think try that !

3 0

3 years ago

IRINA_888 [86]

Answer:

b^20/a^12

Step-by-step explanation:

b to the power of 20 over a to the power of 12

6 0

3 years ago