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Burka [1]
2 years ago
6

15n+24-4(n-3)+6-2n=105

Mathematics
2 answers:
Butoxors [25]2 years ago
8 0

Question: 15n+24-4(n-3)+6-2n=105

Answer:  3 • (3n + 14)

Explanation:

STEP 1: Restate

Equation at the end of step 1

 (15n + 24) -  4 • (n - 3)) +  6) -  2n

STEP 2: Pulling out like terms

STEP 3: Pull out like factors :

9n + 42  =   3 • (3n + 14)

Final result :

 3 • (3n + 14)

Hope this helps~

Studentka2010 [4]2 years ago
4 0

Answer:

n = 7

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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A box contains x apples.<br> 5 are green and the rest are red.<br> Write an expression for P(red).
zvonat [6]

Answer:

25

Step-by-step explanation:

a box contians× means 5×5=25

6 0
2 years ago
What is equivalent to 13 - √-18?<br><br> 4<br> 13 - 9i<br> 13 + 9i<br> 22
beks73 [17]
√-1=i

13-√-18=
13-√(-1)(18)=
13-(√-1)(√18)=
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13-3i√2
8 0
3 years ago
P/90 = 4/18. What does p equal
Phoenix [80]
P/90 = 4/18
18P = 90*4 [cross-multiplication]
P = 360/18
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So, answer is P equals to 20
3 0
3 years ago
Read 2 more answers
Write f(x) in a non-factored way from polynomial equation f(x)=(x+2)(-x+3)(x-2)?
Lelu [443]

Answer:

f(x) = -x³ + 3x² + 4x - 12

Step-by-step explanation:

f(x)=(x+2)(-x+3)(x-2)

Step 1. Use the difference of two squares

(x + 2)(x - 2) = x² - 4

f(x) = (-x + 3)(x² - 4)

Step 2. Long multiplication

x² - 4

<u>-x  + 3               </u>

-x³           + 4x

<u>      + 3x²         - 12</u>

-x³ + 3x² + 4x - 12

f(x) = -x³ + 3x² + 4x - 12

5 0
3 years ago
Help me with these 3 and explain too thank you :))
xz_007 [3.2K]

Answer:

1) 25

2) 2

3) f(g(1)) = 42

Step-by-step explanation:

1) Given that f(x) = 4x^2  + 9

If x = -2

f(-2) = 4(-2)^2 + 9

f(-2) = 4(4) + 9

f(-2) = 16 + 9

f(-2) = 25

2) Given that f(x) = 4x - 6

y = 4x - 6

Replace y  with x

x = 4y - 6

MAke y the subject of the forfmula

4y = x+ 6

y = (x+6)/4

SInce x = 2

f^(-1)(2) = (2+6)/4

f^(-1)(2) = 8/4 = 2

3) If f(x) = 6x and g(x) = x+6

f(g(x)) = f(x+6)

f(x+6) = 6(x+6)

Since x = 1

f(g(1)) = 6(1+6)

f(g(1)) = 6(7)

f(g(1)) = 42

5 0
3 years ago
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