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9 months ago

Which is the correct answer ?????

Mathematics

1 answer:

Damm [24]9 months ago

6 0

<h3>Answer: True</h3>

Explanation:

Technically you could isolate any variable you wanted, from either equation. However, convention is to pick the variable in which isolating it is easiest, and most efficient.

The key thing to look for is if there's a coefficient of 1. This is found in the second equation for the y term. Think of -4x+y = -13 as -4x+1y = -13. Due to the coefficient of 1, when solving for y we won't involve messy fractions.

If you were to solve for y, then you'd get y = 4x-13, which is then plugged in (aka substituted) into the first equation. That allows you to solve for x. Once you know x, you can determine y.

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3 x f(−4)−3 x g(−2)=

lukranit [14]

Answer:

−12+6

Step-by-step explanation:

7 0

3 years ago

9m-m+3=-2(m+1) this thing wants 20 characters so..HI!

MrMuchimi

Answer:

m = -1/2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

9m - m + 3 = -2(m + 1)

Step 2: Solve for m

Combine like terms: 8m + 3 = -2(m + 1)
Distribute -2: 8m + 3 = -2m - 2
Add 2m on both sides: 10m + 3 = -2
Isolate m term: 10m = -5
Isolate m: m = -1/2

6 0

2 years ago

The difference between Lana's and her younger sister Lee's ages is 2. If Lee is 17 years old, how old is Lana? Let x represent L

tatyana61 [14]

Answer:

x = 19

x - 17 = 2

2 + 17 = 19

Hope this helps!

7 0

2 years ago

F(x)=23x−1 and g(x)=−4x+6.

USPshnik [31]

The transformation occurs from function g is a vertical translation 6 units down.

<h3>What is Transformation?</h3>

A function f, usually with some geometrical underpinning, that maps a set X to itself, i.e. f : X → X.

Given:

g(x) = 4x + 6

g(x) = 0

4x + 6=0

x= -6/4

Now,

f(-6/4) = 2 - 1

=-1

By seeing g(x), we can say that function g is a vertical translation 6 units down.

Learn more about transformation here:

https://brainly.in/question/29403318

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3 0

2 years ago

The length of a rectangle is 2 in longer than its width. if the perimeter of the rectangle is 44 in , find its area.

valkas [14]

P = 2(L + W)
P = 44
L = W + 2

44 = 2(W + 2 + W)
44 = 2(2W + 2)
44 = 4W + 4
44 - 4 = 4W
40 = 4W
40/4 = W
10 = W

L = W + 2
L = 10 + 2
L = 12

A = L * W
L = 12
W = 10

A = 12 * 10
A = 120 square inches <===

7 0

3 years ago

Read 2 more answers