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sertanlavr [38]
3 years ago
7

Sin 20° cos 40° cos 80° = 1​

Mathematics
1 answer:
mr Goodwill [35]3 years ago
6 0

Answer:

I think that the answer is 1/8 NOT 1

Step-by-step explanation:

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Solve: k /8 + 1 − = −19
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Step-by-step explanation:

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Which of the following does not have 90 as a multiple?<br><br> 7<br> 6<br> 5<br> 3
Wittaler [7]

Answer:

7

Step-by-step explanation:

I don't completely understand what you were asking, but if you were counting by 7's, 91 would be after 84 instead of just 90.

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Please help you guys, Look at the picture attached
Nookie1986 [14]

Answer:

Step-by-step explanation:

if (x,y) is the centroid. Then x=(x1+x2+x3)/3,y=(y1+y2+y3)/3

5.

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y=(6+0+6)/3=4

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3 years ago
What is the distance between the points (−7, 1) and (−7, −5) on the coordinate plane?
4vir4ik [10]

Answer:

\displaystyle d = 6

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>

Coordinate Planes

  • Coordinates (x, y)

<u>Algebra II</u>

Distance Formula: \displaystyle d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify.</em>

Point (-7, 1)

Point (-7, -5)

<u>Step 2: Find distance </u><u><em>d</em></u>

Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>.

  1. Substitute in points [Distance Formula]:                                                     \displaystyle d = \sqrt{(-7 - -7)^2 + (-5 - 1)^2}
  2. [Order of Operations] Evaluate:                                                                  \displaystyle d = 6
6 0
3 years ago
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