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valentinak56 [21]
3 years ago
6

The side length of a square is represented by the expression n - 5

Mathematics
2 answers:
mamaluj [8]3 years ago
7 0

Answer:

C

Step-by-step explanation:

The perimeter is the side length times 4, so it will be the equation for the side length 4 times.

Lapatulllka [165]3 years ago
4 0

Answer:

B

C

D

Step-by-step explanation:

all have 4 n's and 4 -5's

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3 years ago
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Step-by-step explanation:

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sashaice [31]

Sum of two algebraic expressions is addition of two expressions. The sum of the given expressions is given as: Option B: 2.8x + 8.7

<h3>What are like terms?</h3>

Those terms which have same variables raised with same powers.

For example, 5x^3 and 3x^3 are like terms since variable is same, and it is raised to same power 3.

For example 5x^2 and x^3 are not like terms as the variables are same but powers aren't same.

<h3>What are coefficients?</h3>

Constants who are in multiplication with variables are called coefficients of those variables.

For example, in 10x^2 we have 10 as coefficient of x^2

<h3>When can we add or subtract terms of polynomial by their coefficient's addition or subtraction?</h3>

Suppose we have 5x^2 + 6y

Since those terms are not like terms, their coefficient won't be add and the expression we've got right now, is its simplest form and cannot be reduced more.

If we have, suppose,

4x + 5x^2 + 2x , then we see that 4x and 2x are like terms, their coefficient can be added and thus, the simplified form would be

(4+2)x + 5x^2 = 6x + 5x^2

For the given condition, the needed sum is evaluated as:

(-2.1x + 3.7) + (5 + 4.9x) = (-2.1  + 4.9)x + 5 + 3.7 = 2.8x + 8.7

Thus,

The sum of the given expressions is given as: Option B: 2.8x + 8.7

Learn more about addition of polynomials:

brainly.com/question/4420925

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2 years ago
Consider the system of equations given in slope-intercept form. y = −13x + 17, y = 5x - 23 The solution seems to be about (8, 14
Nitella [24]

Answer:

The exact solution for this equation would be (2.222, -11.889)

Step-by-step explanation:

Since it told us to use a graphing calculator, I went on to desmos graphing calculator, typed in the equation, then I found out where the two line intersect, and then that was the answer.

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