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aivan3 [116]
3 years ago
5

The number expressed using exponents

Mathematics
1 answer:
solniwko [45]3 years ago
5 0
Exponents are the small numbers on top of the number. For example, 5* ,so the star on this problem is representing a number
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The diagram shows a right-angled triangle.
goldfiish [28.3K]

Answer:

Step-by-step explanation:

Ac²= AB²+ BC²

Ac²= 4²+15²= 16+225

Square both side

Ac = √241= 15.52cm

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Factor the expression 2-7y​
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Answer:

Its already factored.

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Willie splashed in 7 more puddles after the rainstorm than Julio. Willie splashed in 11 puddles. How many puddles did Julio spla
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Answer:

she splashed in <em>four</em> puddles

Step-by-step explanation:

11 - 7 = 4!!

Hope this helps!!

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4 years ago
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Write equations for the vertical and horizontal lines passing through the point (0, -3).
Natasha2012 [34]

Answer:

Vertical line will be x=0, and horizontal line will be y=-3

Step-by-step explanation:

Draw a vertical line through point (0,-3). You will see it's on the y-axis. The equation of the line on y-axis is always x=0, because no matter what point you choose on the line, the x coordinate will be 0. (0,-3), (0, -2), etc.

Next draw a horizontal line through (0,-3). It's parallel to the x axis, and no matter what point on the line you choose, the y coordinate will be -3. (0,-3), (1, -3), etc

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3 years ago
Use the quadratic formula to solve for x. 4x2 +9x-1=0​
insens350 [35]

Answer:

x=\frac{-9\pm\sqrt{65} }{8}

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>Algebra I</u>

  • Standard Form: ax² + bx + c = 0
  • Quadratic Formula: x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}

Step-by-step explanation:

<u>Step 1: Define</u>

4x² + 9x - 1 = 0

<u>Step 2: Define variables</u>

a = 4

b = 9

c = -1

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

  1. Substitute:                    x=\frac{-9\pm\sqrt{9^2-4(4)(-1)} }{2(4)}
  2. Exponents:                   x=\frac{-9\pm\sqrt{81-4(4)(-1)} }{2(4)}
  3. Multiply:                        x=\frac{-9\pm\sqrt{81-16} }{8}
  4. Subtract:                       x=\frac{-9\pm\sqrt{65} }{8}
5 0
3 years ago
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