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Diano4ka-milaya [45]
3 years ago
10

If

7Bb%7D" id="TexFormula1" title=" \sqrt{0.3+ \sqrt{0.08} } = \sqrt{a} + \sqrt{b}" alt=" \sqrt{0.3+ \sqrt{0.08} } = \sqrt{a} + \sqrt{b}" align="absmiddle" class="latex-formula"> Then 1/a + 1/b = ....
I Hope Someone Answer My question
Mathematics
1 answer:
babymother [125]3 years ago
6 0
\sqrt{0.3+ \sqrt{0.08} } =  \sqrt{a} + \sqrt{b} \\  \\  \sqrt{0.3+ \sqrt{0.08} }  \\ =  \sqrt{0.3+ \sqrt{4\times0,02} }  \\ = \sqrt{0.3 +2 \sqrt{0.02} } \\  \\  (a+b)^2=a^2+b^2+2ab\\   \\ \sqrt{ (\sqrt{a} + \sqrt{b})^2}  = \sqrt{a+b+2 \sqrt{ab} }\\   \sqrt{0.3+ \sqrt{0.08} } =  \sqrt{a} + \sqrt{b}  \\ \sqrt{0.3 +2 \sqrt{0.02} }=\sqrt{a+b+2 \sqrt{ab} } \\ 0.3+2\sqrt{0.02}=(a+b)+2 \sqrt{ab} \\
(a+b)=0.3 \\ ab=0.02 \\  \\  \\  \frac{1}{a} + \frac{1}{b}  = \frac{a+b}{ab}  \\  \\  \frac{a+b}{ab} =\frac{0.3}{0.02}   \\\frac{0.3}{0.02}=15 \\ \\  \frac{1}{a} + \frac{1}{b}=15


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Answer:

Step-by-step explanation:

x=146

y=33

cba=80

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7 0
3 years ago
Find the actual sum of 1 3/4+1 5/8 do the Turman how much David grew into years explain how you know your answer is reasonable
kotegsom [21]

Answer:

  3 3/8

Step-by-step explanation:

We assume your intended question is ...

  "Find the actual sum of 1 3/4 + 1 5/8 to determine how much David grew in two years. Explain ..." (Proper word choice and punctuation help communication.)

The sum of the two given mixed numbers can be found several ways. One way is to write the fractions using a common denominator:

  1 3/4 + 1 5/8 = 1 6/8 + 1 5/8 = (1 +1) +(6/8 +5/8) = 2 + 11/8 = 3 3/8

David grew 3 3/8 in two years.

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Both numbers are near and slightly more than 1.5, so their sum will be near and slightly more than 3.

3 0
3 years ago
6 ( x - 1 ) = 9( x - 4 ) solve for x<br>I'm giving points pls answer fast<br>​
Alex

Answer:

x = 10

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

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

6(x - 1) = 9(x - 4)

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute:                                   6x - 6 = 9x - 36
  2. Subtract 6x on both sides:        -6 = 3x - 36
  3. Isolate <em>x</em> term:                             30 = 3x
  4. Isolate <em>x</em>:                                      10 = x
  5. Rewrite:                                       x = 10

<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                    6(10 - 1) = 9(10 - 4)
  2. Subtract:                              6(9) = 9(6)

Here we see that the 2 expressions are exactly the same.

∴ x = 10 is the solution to the equation.

6 0
2 years ago
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Rufina [12.5K]
G(x) = (x+4)^4 is the answer. It's D. last choice

G(x) = (x+4)^4 shifted F(x) = x^4      4 units to the left
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You're right, c is the answer because the function is a parabola because of the power of four
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