All categories

3 years ago

Is the expression 2x-2 equivalent to the expression 2 (x-2)?Explain.

2 answers:

6 0

Using the distributiver property which is
a(b+c)=ab+ac therefor
2(x-2)=2(x)+(2)(-2)
multiply
2x+-4
2x-4
2x-4=2x-2?
false

the answer is no

liubo4ka [24]3 years ago

3 0

No, these are not equal because:-

2(x - 2) = 2*x - 2*2 = 2x - 4

2x - 2 is not equal to 2x - 4

Answer: Not equal

You might be interested in

Shown below is a muffin recipe that yields 36 muffins FAST you can get 99

Kryger [21]

The original recipe is for 36 muffins, they want to make 12:

Find the ratio:

12/36 = 1/3

They would need 1/3 of the recipe, so you would divide all the ingredients by 3.

Flour: 5 1/4 cups = 21/4 cups

21/4 / 3 = 21/12 = 1 3/4 cups.

Oil: 1 cup / 3 = 1/3 cup

Baking powder: 4 1/2 = 9/2

9/2 / 3 = 9/6 = 1 1/2 teaspoons

salt: 1 1/2 = 3/2

3/2 / 3 = 3/6 = 1/2 teaspoons

eggs 3 / 1 = 1 egg

Nutmeg: 1 1/2 = 3/2

3/2 / 3 = 1/2 teaspoons

cinnamon: 3/4 / 3 = 1/4 teaspoon

The amount of sugar and milk aren't listed but just divide those by 3 to find the amount needed.

7 0

3 years ago

Read 2 more answers

Which rule describes the x-coordinates in the translation below?. On a coordinate plane, triangle A B C is shifted 6 units up.

Igoryamba

Answer:

vertical transition of 6 units.

Step-by-step explanation:

x,y

y is affected y+6

y represents the number before the translation

5 0

3 years ago

Read 2 more answers

What is the slope of a line perpendicular to the line whose equation is 3x+6y=-183x+6y=−18. Fully reduce your answer.

schepotkina [342]

Answer:

Step-by-step explanation:

The given equation of line is

$3x+6y=-18$

We need to find the slope of a line which is perpendicular to the given line.

The given equation can be rewritten as

$3x+6y+18=0$ ...(i)

If a line is defined as $ax+bx+c=0$ , then the slope of the line is

$m=-\dfrac{a}{b}$

In equation (i), a=3, b=6 and c=18. So, slope of the line is

$m_1=-\dfrac{3}{6}=-\dfrac{1}{2}$

Let $m_2$ be the slope of perpendicular line.

We know that product of two perpendicular line is -1.

$m_1\cdot m_2=-1$

$(-\dfrac{1}{2})\cdot m_2=-1$

Multiply both sides by -2.

$m_2=2$

Therefore, the slope of perpendicular line is 2.

6 0

3 years ago

-3(1)+(-3)(-1) =

daser333 [38]

Answer:

³⅜

Step-by-step explanation:

⁴⁵⅖

+⁷⅝×⅖i

I HOPE IT HELP TYSM

6 0

3 years ago

Read 2 more answers

Use an addition or subtraction formula to find the exact value of the expression, as demonstrated in example 1. sin(105°)

LekaFEV [45]

105° can be expressed as 60°+45°. What we have then is sin(60°+45°). The sum pattern for sin is sin(a)cos(b)+cos(a)sin(b). We will fill in as follows: sin(60)c0s(45)+cos(60)sin(45). Now draw those special right triangles in the first quadrant to get the exact values for each. The sin of 60 is $\frac{ \sqrt{3} }{2}$ , the cos of 45 is $\frac{1}{ \sqrt{2} }$ , the cos of 60 is 1/2, and the sin of 45 is $\frac{1}{ \sqrt{2} }$ . When we put all that together we get $( \frac{ \sqrt{3} }{2} * \frac{1}{ \sqrt{2} } )+( \frac{1}{2}* \frac{1}{ \sqrt{2} })$ . Simplifying all of that we have $\frac{ \sqrt{3} }{2 \sqrt{2} } + \frac{1}{2 \sqrt{2} }$ . We can put that over the common denominator that is already there and get $\frac{1+ \sqrt{3} }{2 \sqrt{2} }$ . Not sure if that's simplified enough; you may be at the point in class where you are rationalizing your denominator, but I'm not sure, and if you're not, I don't want to confuse you.

5 0

3 years ago