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Marat540 [252]
3 years ago
9

(7+5) ÷ 6 + 10 to the second power

Mathematics
1 answer:
mr_godi [17]3 years ago
3 0
Remember PEMDAS (Parentheses, Exponents, Multiplication ⇔ Division, Addition ⇔ Subtraction), which is the order you solve parts of an expression.

(7 + 5) ÷ 6 + 10²   Add 7 and 5 (Parentheses)
   12 ÷ 6 + 10²      Square 10 (10 x 10) (Exponents)
  12 ÷ 6 + 100      Divide 12 by 6 (Division)
       2 + 100        Add (Addition)
          102
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A triangle has one side measuring 16 inches and two sides measuring 13 inches. Is this triangle scalene?
nadya68 [22]

No, because a scalene triangle has to have all sides that are different lengths. 2 sides being 13 inches would mean that the triangle has 2 sides that are equal, making it an isosceles triangle.

3 0
2 years ago
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JK=4x+7 and KL=3x+14 find JL
Lena [83]

Answer:

Step-by-step explanation:

4x + 7 = 3x + 14

x + 7 = 14

x = 7

4(7) + 7 + 3(7) + 14

28 + 7 + 21 + 14

35 + 35 = 70

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3 years ago
Which of the following are true?
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3 years ago
Solve for all solutions x2=29
Westkost [7]

Answer:

x=14.5

PLEASE MARK BRAINLIST!!

Step-by-step explanation:

2x=29

Divide by 2 on both sides:

x=14.5

5 0
3 years ago
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-5+22=r-4+3r+5<br> I need help please and thank u
Brilliant_brown [7]

Answer:

r = 4

General Formulas and Concepts:

<u>Pre-Alg</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

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

-5 + 22 = r - 4 + 3r + 5

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

  1. Combine like terms:                    17 = 4r + 1
  2. Subtract 1 on both sides:             16 = 4r
  3. Divide 4 on both sides:               4 = r
  4. Rewrite:                                        r = 4

<u>Step 3: Check</u>

<em>Plug in r to verify it's a solution.</em>

  1. Substitute:                    -5 + 22 = 4 - 4 + 3(4) + 5
  2. Add/Subtract:               17 = 3(4) + 5
  3. Multiply:                        17 = 12 + 5
  4. Add:                              17 = 17
6 0
3 years ago
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