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sergiy2304 [10]
3 years ago
5

What does y equal? A. 51 B. 39 C. 37

Mathematics
1 answer:
alexandr402 [8]3 years ago
4 0

Answer:

B. 39°

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>

  • Equality Properties

<u>Geometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

<u>Step 1: Identify</u>

Angle θ = <em>y</em>

Opposite Leg = 8

Adjacent Leg = 10

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

  1. Substitute [Tangent]:                    tan(y) = 8/10
  2. Simplify:                                         tan(y) = 4/5
  3. Inverse Trig:                                  y = tan⁻¹(4/5)
  4. Evaluate:                                        y = 38.6598
  5. Round:                                           y ≈ 39°
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I need to calculate J and don’t know how please help me
nexus9112 [7]
K is opposite to 47 so k is also 47. I is opposite to 39 so I is also 39. You add all of those together making it 172. You then subtract it from 360.
So 47+47+39+39=172
360-172=188
188 is both j and opposite j so divide 188 by 2 and you get 94.
J=94
3 0
3 years ago
10
liq [111]

Answer:   39.25

========================================

Work Shown:

d = diameter = 10

r = radius = d/2 = 10/2 = 5

A = area of a full circle

A = pi*r^2 = 3.14*5^2 = 78.5

Cut this in half to get the area of a semicircle (aka half circle)

(78.5)/2 = 39.25

This result is approximate.

5 0
3 years ago
**40 POINTS** PLEASE HELP, EXPLAIN WELL IN DETAIL PLEASE DON'T COPY OTHER ANSWERS OFF THE WEB AS NONE OF THEM HAVE MADE SENSE
cestrela7 [59]
Wilson and Alexis can both by correct if the the function is a parabola. It can have zeroes at points x=-1, and x=1. Thus, the average rate of change between the two points would be zero because the y values do not change as they are both zero. In this way, Wilson is correct. Alexis can be correct because the parabola can have it's highest point at its vertex between the two points. It would count as a turning point because the function would increase and then decrease again. 


Hope this helps :)
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4 years ago
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Answer:

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3 years ago
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4 years ago
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