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3 years ago

-4n + 9 = -2 (2n -1) +7

Mathematics

2 answers:

valentina_108 [34]3 years ago

4 0

I got u.

-4n + 9 = -4n + 9

Ulleksa [173]3 years ago

3 0

Answer:

infinite number of solutions

Step-by-step explanation:

Given

- 4n + 9 = - 2(2n - 1) + 7 ← distribute and simplify right side

- 4n + 9 = - 4n + 2 + 7

- 4n + 9 = - 4n + 9

Since both sides are equal then any value of n makes the equation true.

That is there are an infinite number of solutions

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3x+2(x+4)=5(x+1)+3. Show work please

Nesterboy [21]

First, we distribute the 2 through the parenthesis.

3x+2x+8=5(x+1)+3

Then we distribute the 5 through the parenthesis

3x+2x+8=5x+5+3

Collect the like terms

5x+8=5x+5+3

Add the numbers

5x+8=5x+8

The statement is true for any value of x, because both sides are identical

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3 years ago

The highest point in colorado is mount elbert, at 14,433 feet.About how many miles is that

Juli2301 [7.4K]

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3 years ago

What is the factored form of 6n4 – 24n3 + 18n?

seropon [69]

Answer: Its factored form will be

$6n(n-1)(n^2-3n-3)$

Step-by-step explanation:

Since we have given that

$6n^4-24n^3+18n$

So, we need to factor ,

$6n(n^3-4n^2+3)$

Now,

$\text{Let }p(n)=n^3-4n^2+3$

Now, by hit and trial method, we put n=1,

$p(1)=1^3-4\times1^2+3=1-4+3=1-1=0$

$n=1\\n-1=0$

So, n-1 is also factor of p(n).

Now,

$\frac{n^3-4n^2+3}{n-1}=n^2-3n-3$

So, its factored form will be

$6n(n-1)(n^2-3n-3)$

8 0

3 years ago

Read 2 more answers

In J, K is the midpoint. The coordinates of ) are (2, 2), and the coordinates of Kare (10, 11). What are the coordinates of L?

DiKsa [7]

Answer:

L(18, 20)

Step-by-step explanation:

In JL, K is the midpoint. The coordinates of J are (2, 2), and the

coordinates of K are (10, 11). What are the coordinates of L?

Solution:

If O(x, y) is the midpoint between two points A( $x_1,y_1$ ) and B( $x_2,y_2$ ). The equation to determine the location of O is given by:

$x=\frac{x_1+x_2}{2} \\\\y=\frac{y_1+y_2}{2}$

Since JL is a line segment and K is the midpoint. Given the location of J as (2, 2) and K as (10, 11). Let ( $x_2,y_2$ ) be the coordinate of L. Therefore:

$10=\frac{2+x_2}{2} \\\\20=2+x_2\\\\x_2=18$

$11=\frac{2+y_2}{2} \\\\22=2+y_2\\\\y_2=20$

Therefore L = (18, 20)

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2 years ago

Can there be more than one point of intersection between the graphs of two linear equations? why or why not?

SOVA2 [1]

No because they are straight lines, they cannot curve to intersect more than once, think of a capital X.

5 0

3 years ago