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lora16 [44]
3 years ago
8

A circle has a circumference of 18. It has an arc length of 6.

Mathematics
2 answers:
ra1l [238]3 years ago
7 0
The central angles of the arc is 120 degrees
IRINA_888 [86]3 years ago
3 0

Answer:

120

Step-by-step explanation:

my brother helped me

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Find the value of the length <br> x<br> rounded to 1 DP.
bagirrra123 [75]

Length of x is 98.2 m

<u>Step-by-step explanation:</u>

Step 1:

Use the trigonometric ratio tan 27° to find the common side of both the right angled triangles.

tan 27° = opposite side/adjacent side = opposite side/9

∴ Opposite side = 9 tan 27° = 9 × - 3.27 = -29.46 m

Step 2:

Use this side and trigonometric ratio cosine to find the value of x.

cos 49° = adjacent side/x = -29.46/x

∴ x = -29.46/cos 49° = -29.46/0.30

     = 98.2 m (negative value neglected)

5 0
3 years ago
Read 2 more answers
If f is a function that f(f(x)) = 2x² + 1, which is the value of f(f(f(f(3)))? Please help!
Sloan [31]

f(f(3))=2\cdot3^2+1=19\\f(f(f(f(3))))=2\cdot19^2+1=723

5 0
3 years ago
A rectangle has a length that is 10 less than 3 times the width. If the rectangle has an area of 8 square feet, what is the widt
JulijaS [17]

Solve this problem by forming an equation

3x - 10 = 8

3x = 18

The width of the rectangle is 6 square feet.

3 0
4 years ago
Parabolas in geometry. i need help please
natali 33 [55]

Answer:

OPtion B

Step by step explanation:

Lets plug in a random value for x.

Lets say 5 is x

-8(-5-5)=(y+1)^2

5-5 = 0

-8(0) = 0

0 = (y+1)^2

Square root of both sides

0 = y+1

subtract one from both sides

-1 = y

that means the x is 5 and the y is -1. Option B illustrates exactly that!

7 0
3 years ago
Identificación de la intención del mensaje o del texto leído​
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Answer:

La identificación de la intención del mensaje o del texto leído no es otra cosa que la interpretación del mismo. Es decir, a través de la lectura y la identificación de las diferentes variables comunicativas, el lector realiza un análisis del contenido del texto y lo interpreta, buscando dilucidar la intención que el redactor tuvo al momento de escribir el mensaje o texto en cuestión. La interpretación de textos es fundamental para poder comprender lo que se encuentra redactado, es decir, para poder lograr una total comprensión del texto.

7 0
3 years ago
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