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4 years ago

Why is 12 (m+n) equivalent to 12m + 12n

2 answers:

6 0

Because of the distributive property. You multiply the outside number (12) by the variables inside the parentheses (m and n). Then you add them together, so you get 12m+12n.
You can check it by plugging in numbers for m and n, then solving it both ways. You will get the same answer.

blagie [28]4 years ago

5 0

Because 12(m=n) means that you are multiplying 12 times m and 12 times n. So if there is a number outside of parenthesis it gets multiplied by all the nu,beds in the parenthesis.
12(1+2)
36 either way. that is proof. if you want more proof use any number in replace of n and m

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Given f (x) = startlayout enlarged left-brace first row 3 startroot 2 x minus 1 endroot, for x less-than-or-equal-to 2 second ro

qwelly [4]

These 2 equations has no solution and the equations are independent of each other.

What is liner equation with two variable?

An equation is said to be linear equation in two variables if it is written in the form of ax + by + c=0, where a, b & c are real numbers and the coefficients of x and y, i.e a and b respectively, are not equal to zero.
For example, 10x+4y = 3 and -x+5y = 2 are linear equations in two variables.

-10x² -10y² = -300 ----a

5x² + 5y² = 150 ---- b

While trying to solve this,

We can multiply the eq. b by 2 so we will get eq. c and then add to eq. a we will get 0 as the solution.

10x² + 10y² = 300 ----c

-10x² -10y² = -300 ---a

Everything cutoff, we will get 0, and there is no solution to these equations.

Learn more about liner equation with two variable brainly.com/question/16933755

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8 0

2 years ago

400x34+23444444444-23444444444

Alex777 [14]

I hope you want to simplify this expression.

To simplify the given expression we can use the order of operation.

So, first step is to operate multiplication. Therefore,

400 x 34 = 13600

Hence,

400x34+23444444444-23444444444

= 13600 +23444444444-23444444444

= 13600 + 0 Since +23444444444-23444444444 = 0

= 13600.

So, the simplified value of the given expression is 13600.

Hope this helps you!.

4 0

4 years ago

Find the distance between the points (-1,-7) and (8,-9). The answer must be a whole number or a fully simplified radical express

ruslelena [56]

Answer:

The answer is

<h2> $\sqrt{85} \: \: \: units$ </h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

$d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-1,-7) and (8,-9)

The distance between them is

$d = \sqrt{( { - 1 - 8})^{2} + ({ - 7 + 9})^{2} } \\ = \sqrt{ ({ - 9})^{2} + {2}^{2} } \\ = \sqrt{81 + 4}$

We have the final answer as

$\sqrt{85} \: \: \: units$

Hope this helps you

3 0

3 years ago

Plzzzzzzzzzzzzzz help me i suck at this

OverLord2011 [107]

Answer:

$9 \times 9 \times 0.25 \times \pi \times 15 = 953.775 = 953.78$

4 0

3 years ago

Read 2 more answers

PB is a line segment on a number line. It has endpoints at -2 and 12. What is the coordinate of its midpoint.

Zielflug [23.3K]

It is 7
2 below the zero, 12 above = 14 steps
middle point is 7

5 0

3 years ago