4 years ago

What is the relationship between the arc length and the radius of a circle when the central angle is defined in radians

Mathematics

1 answer:

Ket [755]4 years ago

6 0

$radians=\frac{arc\ length}{radius}$

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MA_775_DIABLO [31]

V= π r^2 h/3
V= π 4^2 9/3
V= π 16 3
V= 150.72
V=151

Explanation
Formula is the first line. R is the radius with us 4 and h is the height which is 9. Substituting these values into the formula will get you pi times 4 squared times 9 divided by 3. When simplified this gets pi times 16 times 3. Using the approximate value of pi which is 3.14, multiple it with 16 and 3 will get you 150.72, round this to 150.8, which rounds to 151.
Hope this helps

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2 years ago

Dollars, that Lucia paid for her ticket can be modeled by the expres

RUDIKE [14]

$82.50

May I have brainliest?

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4 years ago

Sam climbed 650 steps in 12 1/2 minutes. How many steps did Sam climb per minute

In-s [12.5K]

Answer:

52 steps per minute

Step-by-step explanation:

Just divide. 650 ÷ 12.5 =52

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3 years ago

What is the answer for this cause the answer I put is incorrect

maw [93]

The answer would be 59.

Because the first point is (0, 59) I am positive on this answer. Hope this helps!

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3 years ago

Write the expression as either the sine, cosine, or tangent of a single angle.

Gnesinka [82]

Note that
sin(x + y) = sin(x) cos(y) + cos(x) sin(y).

Therefore by setting x = π/2 and y = π/7, obtain
sin(π/2 + π/7) = sin(π/2)*cos(π/7) + cos(π/2)*sin(π/7)

The right side is what we want to evaluate. It is equal to
sin(π/2 + π/7) = sin (9/14)π

Answer: $sin( \frac{9 \pi }{14})$

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3 years ago