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2 years ago

10. The expression 4 (2x-5)+7(x+2) can be written in simplest form as

Mathematics

1 answer:

ankoles [38]2 years ago

4 0

Answer:

15x-6

Step-by-step explanation: 4 * 2x = 8x

4*-5 = -20

7*x = 7x

7*2= 14

Combine like terms 8x + 7x + 14-20

15x-6

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if I want a PlayStation for $300.00 and I get paid $10.50 a week how long would it take me to buy the PlayStation

konstantin123 [22]

Answer:

29 weeks or 4 months (not exactly)

Step-by-step explanation:

300/10.5 is 28.57

which 29 weeks, you earn 4 dollars and 50 cents left over

8 0

2 years ago

Solve 7x + 6 < 3(x - 2).

sasho [114]

7x+6=3x-6
+6 +6
7x+12=3x
-3x -3x
4x+12=0
-4x -4x
divide both sides by -4 but you have to flip the sign.
-3>x
or
{x | x < -3}

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2 years ago

Jenna wants to paint a wooden jewelry box that is 8 inches by 6 inches by 3 inches with clear paint. The bottle of paint says it

Tanzania [10]

Yes. 6x8 equals 48. 48x3 equals 144.

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2 years ago

Which is not a correct way to rewrite this expression using the distributive

Effectus [21]

Given:

The expression is

$(2x^2+4x-7)(x-2)$

To find:

The expression which is not a correct way to rewrite the given expression.

Solution:

We have,

$(2x^2+4x-7)(x-2)$

Using distributive property, we get

$=(2x^2)(x-2)+(4x)(x-2)+(-7)(x-2)$

$=(2x^2)(x)+(2x^2)(-2)+(4x)(x)+(4x)(-2)+(-7)(x)+(-7)(-2)$

Using distributive property the given expression can rewritten as:

$=(2x^2+4x-7)(x)+(2x^2+4x-7)(-2)$

Only the expression in option A is not a correct way to rewrite the given expression because $(2x^2+4x-7)$ is not distributed to $(x-2)$ properly.

Therefore, the correct option is A.

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2 years ago

What is the factored form of X^12 y^18+1

Charra [1.4K]

Answer:

The answer that you are looking for would be

$(x^4y^6+1)(x^8y^12-x^4y^6+1)$

Try that

7 0

2 years ago