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Eddi Din [679]
3 years ago
10

What is the value of the expression 9x1/3 to the second power + 2+4/7

Mathematics
1 answer:
wariber [46]3 years ago
6 0
The expression is 9*\frac{1}{3}^{2}+2+\frac{4}{7}.

9*\frac{1}{3}^{2}+2+\frac{4}{7} ---> First square \frac{1}{3} by squaring the top and bottom number.

=9*\frac{1}{9}+2+\frac{4}{7}  ---> Multiply 9 and \frac{1}{9}

=1+2+\frac{4}{7} ---> Add

=3 \frac{4}{7} ---> Optional: turn into improper fraction

=\frac{25}{7}
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Factor the expression completely.
densk [106]

Answer:

\fbox{\begin{minipage}{13em}Option D: 2(3x + 4)(3x - 4)\end{minipage}}

Step-by-step explanation:

      A = 18x^{2}  - 32\\

Find the sharing components:

<=> A=2*9*x^{2} - 2*16

Apply the inverse of associative property:

<=> A = 2(9x^{2} - 16)

Identify two square components inside the parenthesis:

<=> A = 2((3x)^{2} - 4^{2} )

Factorize:

<=> A = 2(3x + 4)(3x - 4)

=> Option D is correct

Hope this helps!

:)

3 0
3 years ago
Solve for x. Show each step of the solution. 4.5(8−)+36=102−2.5(3+24) i need to show my work dont just give me the answer
elena-s [515]
4.5 * (8-) + 36 = 102 - 2.5 * 27
4.5 * 8 - 36 = 102 - 2.5 * 27
36 - 36 = 102 - 2.5 * 27
36 - 36 = 102 - 67.5
36 - 36 = 34.5
Since we know 36 - 36 doesn't equal 34.5 its not true so there is NO ANSWER.

5 0
3 years ago
Read 2 more answers
15 - 3k = 10(k-5) <br> Can someone please answer this
solmaris [256]

Answer:

k = 5

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

15 - 3k = 10(k - 5)

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

  1. Distribute 10:                              15 - 3k = 10k - 50
  2. Add 3k to both sides:                15 = 13k - 50
  3. Add 50 to both sides:                65 = 13k
  4. Divide 13 on both sides:            5 = k
  5. Rewrite:                                       k = 5

<u>Step 3: Check</u>

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

  1. Substitute in <em>k</em>:                    15 - 3(5) = 10(5 - 5)
  2. Subtract:                              15 - 3(5) = 10(0)
  3. Multiply:                               15 - 15 = 0
  4. Subtract:                              0 = 0

Here we see that 0 does indeed equal 0.

∴ k = 5 is a solution of the equation.

5 0
3 years ago
Read 2 more answers
Convert 1/5 to it's equivalent decimal and percent
jarptica [38.1K]
It will be 0.2 as a decimal. it will be 20% as a percentage
8 0
2 years ago
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NEED HELP ASAP!! Angles of Elevation and Despression! Need to find x! Round to the nearest tenth!
Oksi-84 [34.3K]

Answer:

Hey there!

Sine 61=x/500

Sine 61(500)=x

x=437.3

Let me know if this helps :)

3 0
3 years ago
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