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Novay_Z [31]
3 years ago
12

What is the solution to the equation √x^2+2x-25=√x+5 x = –6 x = 5 x = 6, x = –5 x = –6, x = 5

Mathematics
1 answer:
Dimas [21]3 years ago
4 0

Answer:

x = 5, -6

Step-by-step explanation:

Step 1: Write out equation

x² + 2x - 25 = x + 5

Step 2: Move everything to one side

x² + x - 30 = 0

Step 3: Factor

(x - 5)(x + 6) = 0

Step 4: Find roots

x - 5 = 0

x = 5

x + 6 = 0

x = -6

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Answer:

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Step-by-step explanation:

Parabola with a vertex at (1, 3) opening downward.

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3 years ago
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What is the slope of the line?
shtirl [24]

Answer:

m=\frac{1}{3}

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>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (2, -1)

Point (-4, -3)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute [SF]:                     m=\frac{-3+1}{-4-2}
  2. Add/Subtract:                       m=\frac{-2}{-6}
  3. Simplify:                                m=\frac{1}{3}
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Jesse wants to paint the top of the table shown. What is the approximate area that she will paint? Circumference is 78 inches.
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What is the radius of a circle whose equation is (x 5)2 (y-3)3 42?O 2 unitso 4 unitsO 8 units16 unitsSave and ExitMark this and
dexar [7]

we know that

the equation of the circle is of the form

(x-h)^{2} +(y-k)^{2} =r^{2}

where

(h,k) is the center of the circle

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in this problem we have

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the radius is 4\ units

therefore

the answer is

The radius of the circle is equal to 4\ units

4 0
3 years ago
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