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Svet_ta [14]
4 years ago
7

Frank Fitness found a correlation coefficient of —.74 between hours of strenuous exercise each week and a standard measure of bo

dy mass. He interprets this to mean that there is a: A weak, negative correlation between hours of strenuous exercise and body mass. B strong, positive correlation between hours of strenuous exercise and body mass. C weak, positive correlation between hours of strenuous exercise and body mass. D strong, negative correlation between hours of strenuous exercise and body mass.
Mathematics
1 answer:
irina1246 [14]4 years ago
5 0

A a B b C c D d E e F f G g H h I i J j K k L l M m N n O o P p Q q R r S s T t U u V v W w X x Y y Z z 1 2 3 4 5 6 7 8 9 0

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PQR is a right angled triangle calculate the size of angle marked x
romanna [79]

Answer:

\displaystyle x \approx 37.4^\circ

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> </u>

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] cosθ = adjacent over hypotenuse<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

Angle θ = <em>x</em>

Adjacent Leg = 5.8

Hypotenuse = 7.3

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

  1. Substitute in variables [Cosine]:                                                                    \displaystyle cosx^\circ = \frac{5.8}{7.3}
  2. [Fraction] Divide:                                                                                             \displaystyle cosx^\circ = 0.794521
  3. [Equality Property] Trig inverse:                                                                    \displaystyle x^\circ = cos^{-1}(0.794521)
  4. Evaluate trig inverse:                                                                                      \displaystyle x = 37.39^\circ
  5. Round:                                                                                                             \displaystyle x \approx 37.4^\circ
8 0
3 years ago
Find the value of x in the triangle shown below.<br> 1<br> 13<br> 2<br> 12<br> Choose 1 answers
DedPeter [7]

Answer:

x = 5

Step-by-step explanation:

a² + b² = c²

x² + 12² = 13²

x² + 144 = 169

x² = 169 - 144

x² = 25

\sqrt{x^2} =\sqrt{25}

x = 5

3 0
3 years ago
Could someone show me how to start this function in excel.
Mrac [35]
Attached is a screenshot of spreadsheet used to do this problem.

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6 0
3 years ago
Which fraction is a proper fraction. 7/6 ,4/3 ,1/2 or 3/3
wolverine [178]
A proper fraction is a fraction less than one, with the numerator less than the denominator so 1/2 is your answer
4 0
3 years ago
Read 2 more answers
Please solve for the value of 3
borishaifa [10]

Answer:

P = 45

Step-by-step explanation:

180 - 90 = 90

90 / 2 = 45

P = 45

<em>Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!</em>

4 0
2 years ago
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