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Alina [70]
3 years ago
7

(Right angle) Trigonometry please help!

Mathematics
1 answer:
kozerog [31]3 years ago
7 0

Answer:

A = 41.4°

Step-by-step explanation:

Reference angle = A

Length of Adjacent side = 6

Length of Hypotenuse = 8

Apply the trigonometric function, CAH.

Cos A = Adj/Hyp

Substitute

Cos(A) = \frac{6}{8}

A = Cos^{-1}(\frac{6}{8})

A = 41.4° (approximated to the nearest tenth)

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find the area of the figure below, composed of a rectangle and semicircle. Round it to the nearest tenth.
Alexandra [31]

Answer:

Step-by-step explanation:

radius of semicircle = 5

area of semicircle = πr² = 25π

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total area = 140 + 25π ≅ 218.54 square units

5 0
3 years ago
A mysterious orb is in the shape of a sphere with radius 9.5 inches. Find the volume and surface
Andru [333]

A 9.5-inch-diameter spherical in the shape of a strange orb is present. 3591.36 m3 of volume and surface

<h3>Explain about the Radius?</h3>

The radius of a circle is the separation between any two points on its circumference. R or r is typically used to indicate it.

The diameter of a circle cuts through the centre whereas the radius extends from the centre to the edges of the circle. The diameter of a circle effectively divides the shape in two.

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The radius of a circle is the distance from the center to any point on the edge. The radius is equal to the diameter in half, or 2r=d2 r=d.

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To learn more about Radius refer to:

brainly.com/question/390660

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8 0
1 year ago
What is the slope of the line through (-7.-8) and (0.4)?​
Dmitry_Shevchenko [17]

Use the equation (x2-x1)/(y2-y1)

Substitute the value of x and y

7 0
3 years ago
What is the picture equal to? Help please
amm1812

25(3n - 2) \\  \\ 1. \: 25  \times 3n + 25  \times  - 2 \\ 2. \: 75n + 25 \times  - 2 \\ 3. \: 75n - 50

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3 years ago
BRAINLIST HELP
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Answer:

The second one.

Step-by-step explanation:

3 0
2 years ago
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