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Kipish [7]
4 years ago
8

Solve using the elimination method 0.3x-0.2y=4 0.2x+0.5y=-21/23

Mathematics
1 answer:
Aneli [31]4 years ago
5 0
Do this and then simplify the result

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Evaluate the expression when X= -2 x^2 + 9x + 3
TiliK225 [7]

Answer:

-11

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>

Step-by-step explanation:

<u>Step 1: Define</u>

x² + 9x + 3

x = -2

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                                                                                                  (-2)² + 9(-2) + 3
  2. Exponents:                                                                                                        4 + 9(-2) + 3
  3. Multiply:                                                                                                             4 - 18 + 3
  4. Subtract:                                                                                                            -14 + 3
  5. Add:                                                                                                                   -11
3 0
3 years ago
What times what equals 252
Dovator [93]
There are numerous factors of 252. The factors are 1 times 252, 2 times 126, 3 times 84, 4 times 63, 6 times 42, 7 times 36, 9 times 28, 12 times 21, and 14 times 18. Hope this helped :)!
4 0
4 years ago
Read 2 more answers
Equivalent to 15x + 3?<br> A. 15(1x + 1)<br> B. 5(3x + 1)<br> C. 3(5x + 1)<br> D. 2(15x + 3)
Reika [66]

Answer:

CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

6 0
2 years ago
Libreng puntoss<br>yeeah​
Doss [256]

<h2>THANK YOU PO</h2>

PA BRAINLIEST

6 0
3 years ago
Read 2 more answers
Solve 3(4 – x) ≤ 54
algol13
3(4 - x) <= 54

12 - 3x <= 54
-3x <= 42

x >= -14  answer

Its A
7 0
3 years ago
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