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oksian1 [2.3K]
2 years ago
7

Need help (easy 20 points)

Mathematics
1 answer:
schepotkina [342]2 years ago
4 0
Answer: well I Might be wrong but all I have to do is look it up.

Step-by-step explanation:

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Which number is rational?<br> o 22<br> O 16
dangina [55]
Square root of 16 because it equals to 4 which is a rational number
4 0
3 years ago
Help! I don't understand this
Murljashka [212]

The area of your circle is about 530.93 m

The diameter of your circle is 26 m, just multiply your radius by 2

The circumference of the circle is about 81.68


The equation to finding the area is

pi x r x 2

3.14 times 13 times 2

The equation to finding the diameter

r x 2

radius times 2

The equation for finding circumference

pi x d

3.14 times 26

Let me know if im wrong, otherwise I want brainliest, PLEASE!!

8 0
3 years ago
Geometry help please. Answer choices: A, B, C, or d. Picture beloe.
ira [324]

Answer:

D

Step-by-step explanation:

you reverse the numbers in the y spot, so if they are negative make them positive, vise versa

8 0
3 years ago
What is the measure of arc WYZ?<br> ----------<br><br> 231<br><br> 255<br><br> 200<br><br> 168
Nataly_w [17]

9514 1404 393

Answer:

  (a)  231°

Step-by-step explanation:

  arc WYZ = arc WX + arc XYZ

  arc WYZ = 51° +180° . . . . . XZ is a diameter, substitute known arc measures

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7 0
3 years ago
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
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