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Llana [10]
4 years ago
12

which property was used to write the equation in step 4? 4 • x/4 = 4 • 18? A. addition B. subtraction C. multiplication D. divis

ion
Mathematics
1 answer:
jolli1 [7]4 years ago
4 0

Answer:

D. division because of the settings even though I don't understand the equation

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One of one hundred equal parts
Step2247 [10]
1/100 as a fraction is what you're looking for, I assume. 1 over 100, one part of one hundred equal parts.
3 0
3 years ago
Factor out the greatest common factor of Given the expression: 4x^10 − 64x^2<br><br>​
Alexxandr [17]

Part A

4x10 – 64x2

= 4x2 * x8 – 4x2 * 16

= 4x2 * (x8 – 16) by distributive property

Part B

x8 is (x4)2 and 16 = 42 so a difference of squares is seen in the parentheses. The pattern a2 – b2 = (a + b)(a – b) can be used.

4x2 * (x8 – 16)

= 4x2 * (x4 + 4) * (x4 – 4)

x4 = (x2)2 and 4 = 22 so there is another difference of squares in the last factor. Use the pattern again.

= 4x2 * (x4 + 4) * (x2 + 2) * (x2 – 2)

5 0
3 years ago
Read 2 more answers
Which is a rational function??
snow_tiger [21]

Answer:

A. y=\frac{x-5}{2}

B. y=\frac{2}{x}

and

D. y=x^2-x+4

Step-by-step explanation:

A rational function is of the form R(x)=\frac{P(x)}{Q(x)} ,Q(x)\ne0 where

P(x) and Q(x) are polynomial functions.

Based on this definition, every polynomial function is a rational function.

Hence the rational functions in the options provided are;

A. y=\frac{x-5}{2}

B. y=\frac{2}{x}

and

D. y=x^2-x+4

y=\frac{x-3^x}{x^2} is not a rational function because the numerator is not a polynomial function.

4 0
3 years ago
X+y when x=13 and y=−74. Write your answer as a fractionin simplest form.
slamgirl [31]

Answer:

-61

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

x + y

x = 13

y = -74

<u>Step 2: Evaluate</u>

  1. Substitute:                     13 - 74
  2. Subtract:                        -61
7 0
3 years ago
Read 2 more answers
If using the method of completing the square to solve the quadratic
Nezavi [6.7K]

Answer:

25/4 or 6.25

Step-by-step explanation:

Given that the general equation of  a quadratic equation is given as ax^2 + bx + c = 0, to complete the square, we subtract c from both sides of the equation and add the square of (b/2a) to both sides.Hence given x^2-5x-19=0, to complete the square, we add (-5/2)^2 to both sides following the illustration given.This is 25/4 or 6.24

3 0
3 years ago
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