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Ratling [72]
3 years ago
6

Find the solution to the equation algebraically. Check your answer. k - 16 = 4

Mathematics
1 answer:
vitfil [10]3 years ago
7 0

Answer:

k= 20

Step-by-step explanation:

You start with this equation:

k-16=4

Add 16 on both sides.

k=4+16

Simply.

k=20

If you want to check your answer, you can just plug 20 into where k is back into the equation:)

Hope this helps!

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No links plz! Will mark brainliest if correct!
ehidna [41]

Answer:

(m-4) / (5m)

Step-by-step explanation:

((m²-16) / (5m)) / (m+4) =

(m²-16) / (5m(m+4)) =

m²-16 / (5m²+20m) =

(m-4) / (5m)

7 0
2 years ago
X + y = 7<br> 2x - 3y = -21
kotykmax [81]
There is only one solution

When you graph both equations, they intersect therefore the intersection point tells you there is one solution. If it was infinitely many solutions then it would be the same line. If it was no solution then the graph would show to parallel lines.

3 0
3 years ago
Read 2 more answers
4
Naddik [55]

Answer:

24/7

Step-by-step explanation:

tan 2t =+ 2 tan t) /( 1 - tan²t)

(2(-4/3))/(1- 16/9)

(-8/3)/(-7/9) = 24/7

3 0
2 years ago
What are the factor of 8x^3 - 27?..
katen-ka-za [31]

Answer:

(x - 3)(4x² + 6x + 9)

Step-by-step explanation:

This is a difference of cubes which factors in general as

a³ - b³ = (a - b)(a² + ab + b²)

8x³ = (2x)³ ⇒ a = 2x

27 = 3³ ⇒ b = 3

Hence

8x³ - 27

= (2x)³ - 3³

= (2x - 3)( (2x)² + (2x × 3) + 3²)

= (2x - 3)(4x² + 6x + 9)

3 0
3 years ago
Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule. A(n) = 1 + (n - 1) (-5.7)
OleMash [197]
Well the first term = 1 because (n - 1) = 0 for the first term
So its either A or D 
4th term  = 1 + (4 - 1)(-5.7 = 1 + 3*-5.7 = -17.1

Its C 
8 0
3 years ago
Read 2 more answers
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