All categories

3 years ago

Simplify: n(8n−6)+10(7−n)=2

Mathematics

2 answers:

garik1379 [7]3 years ago

8 0

I think i’m may be ‘B’ i’m so sorry if i’m incorrect!!

damaskus [11]3 years ago

8 0

Answer:

B. 8n²−16n=−68

Step-by-step explanation:

First - Distribute the n & 10

n * 8n & n * -6 = 8n² - 6n

10 * -n & 10 * 7 = -10n +70

Second - Move the 2 by subtracting

8n² - 6n - 10n +70 = 2 -> 8n² - 6n - 10n +70 - 2 = 2 - 2

Third - Combine like terms

-6n - 10n = -16n

70 - 2 = 68

8n² - 16n + 68 = 0

Fourth - Move 68 by subtracting

8n² - 16n + 68 - 68 = 0 - 68

8n² - 16n = -68

You might be interested in

WILL GIVE BRAINLIEST

oee [108]

$f(x) = x^2 +3 \\\\\text{Write f(x) as}~ y = x^2 +3 \\\\\text{Replace x with y and solve for y}\\\\x = y^2+3\\\\\implies y^2 = x-3\\\\\implies y=\pm\sqrt{x-3}\\\\\implies f^{-1}(x) = \pm\sqrt{x-3}\\\\\text{This is the inverse of f(x).}$

5 0

2 years ago

What value of x makes the equation 5 = ºx + 3 true?<br> Vx ?<br> 3<br> =

mr Goodwill [35]

Answer:

122

Step-by-step explanation:

To solve for x, undo the operations done to it.

5 = ∛(x +3) . . . . . given

125 = x +3 . . . . . cube both sides of the equation

122 = x . . . . . . . . subtract 3

8 0

2 years ago

Anyone want my tik.tok username ? Or my brainly only username

vesna_86 [32]

Answer:

I'll follow you rn :)

3 0

3 years ago

Read 2 more answers

Describe a sequence of transformations that can be performed to polygon ABCDE to prove that it is similar to polygon FGHIJ

maxonik [38]

Answer:

answer below

Step-by-step explanation:

ABCDE go through dilation over center (6 , -2) with factor of 1/2 to FGHIJ

AB // FG slope: -2 , √20:√5 = 2: 1

BC // GH // X axis 8:4 = 2:1

CD // HI, slope= 1 , √8:√2 = 2:1

DE // IJ // x axis, 4:2 = 2:1

EA // JF // y axis, 2:1

8 0

3 years ago

I need help with this answer ASAP I do t know how to do it?

asambeis [7]

Answer:

22/3 i believe

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers