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Alex Ar [27]
3 years ago
15

Can someone help me with this question :)

Mathematics
1 answer:
Lesechka [4]3 years ago
5 0

Answer:

i dont understand

Step-by-step explanation:

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The minute hand of a clock is 9 inches long. how far does the tip of the minute hand move in 40 minutes​
GarryVolchara [31]

\text{The minute hand of a clock is 9 inches long.}\\
\text{we need to find the distance traveled by the tip of the minute }\\
\text{hand moved in 40 minutes.}

\text{That is we need to find the length of the arc formed by the minute}\\
\text{hand in 40 minutes. We know that in one complete revolution of the}\\
\text{minute hand there are 60 minutes. so the central angle formed by the }\\
\text{minute hand in 40 minutes is}=\frac{40}{60}*2\pi =\frac{4\pi}{3} \text{ radians}\\
\\
\text{hence using the arc length formula, }s=r\theta, \text{ we get}\\
\\
\text{distance traveled by the tip}=9\times \frac{4\pi}{3}=12\pi\approx 37.7 \text{ inches}

Hence the tip of the minute hand moved approximately 37.7 inches in 40 minutes.

5 0
3 years ago
Can someone help out?
Crank

Answer:

b ≥ 5,000.

Step-by-step explanation:

1. Use the information given in the problem to write the inequality... such as box tops & the amount of 5,000 box tops.

2. b represents the number of  box tops for the fundraiser. Therefore, based on the information provided, the value of b must be greater than or equal to 5,000 box tops. So, you get the inequality is:

b ≥ 5,000

3. Then you graph it, you must use a closed circle for ≥.

~~(the graph is different, but you should be able to understand it.)

-------

hopefully my answer helps! ♡

if my answers helped you please tell me, therefore I know.. that I did them correctly or incorrectly. anyways, have a great day/night!

6 0
3 years ago
What is the y-intercept of the equation?
Arada [10]
The y intercept is -4 and the 2/3x is the slope
5 0
3 years ago
Read 2 more answers
(3-√5)(3-√5)<br> Please Include Steps
wariber [46]

\left( 3 - \sqrt 5 \right) \left( 3 - \sqrt 5 \right) \\\\=\left( 3 - \sqrt 5 \right) ^2\\\\=3^2 - 2 \cdot 3 \cdot \sqrt 5 + \left( \sqrt 5 \right)^2\\\\=9-6\sqrt5 +5\\\\=14-6\sqrt 5\\\\=2(\left7-3\sqrt 5 \right)

4 0
2 years ago
Determine if this relationship is proportional or non proportional. Explain.
vladimir2022 [97]
Proportional because the y continues to increase by two while the x continues to increase in intervals of 1
6 0
3 years ago
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