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Evgen [1.6K]
3 years ago
9

Which method do you prefer to use to find sums-count be tens and ones use compatible numbers or use friendly numbers and adjust?

Explain why.
Mathematics
2 answers:
AnnyKZ [126]3 years ago
7 0
To the CFCs h n b jfnfbvb
Stels [109]3 years ago
4 0
You can use the cfc formula                                                        
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Help me plzzzzzzzzzzz
Inga [223]

Answer:

A = 3

B = -5

C = 2

Step-by-step explanation:

The way to format a quadratic equation is: ax^2 + bx + c, so the first step to solving this is to format it in the right way, where the x^2 comes first, the x second, and the number alone.

After formatting, your equation should look like this: 3x^2 - 5x + 2

From here, you can see the the <em>a </em> is 3, the <em>b</em> is -5, and the <em>c </em>is 2

7 0
3 years ago
3 + 2p - 4 = 11<br><br> algebra 1 solving equations
leonid [27]

Answer: the variable is p=6 .

Step-by-step explanation:

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

8 0
3 years ago
Read 2 more answers
Find the circumference for 6 and 8
Naya [18.7K]
Answer:
6. 98.01
8. 32.04
5 0
3 years ago
The side of a square is 2^7/2. Using the area formula A = s^2, determine the area of the square.
sergij07 [2.7K]
The answer is 49 square inches?

5 0
3 years ago
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What's the area of a circle with diameter 18 units? Question 8 options: A) 9π units2 B) 81π units2 C) π units2 D) 18π units2
Anna [14]

Answer:

B) 81π units²

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<u> </u>

<u>Geometry</u>

Radius of a Circle Formula: r = d/2

  • r is radius
  • d is diameter

Area of a Circle Formula: A = πr²

Step-by-step explanation:

<u>Step 1: Define</u>

Diameter <em>d</em> = 18 units

<u>Step 2: Manipulate Variables</u>

Radius <em>r</em> = 18 units/2 = 9 units

<u>Step 3: Find Area</u>

  1. Substitute in <em>r</em> [Area of a Circle Formula]:                                                       A = π(9 units)²
  2. [Area] Evaluate exponents:                                                                              A = π(81 units²)
  3. [Area] Multiply:                                                                                                  A = 81π units²
6 0
3 years ago
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