The minute hand of a clock is 15 cm long how far does the tip of the minute and travel in 20 minutes

1 answer:

4 0

20 mins means the hand moves 120 degrees around the clock.

The formula to find the arc length is 2pi×r×a/360

2×pi×15×1/3=30pi×1/3=10pi

so i think the answer would be 10 pi cm

You might be interested in

Evaluate the formula of A=lw, for l=10.8 cm and w=2.5 cm

Setler [38]

Answer:

A = 27 cm²

Step-by-step explanation:

$A = lw\\Where, l=10.8 cm , w = 2.5 cm\\$

Putting in the above formula

A = (10.8)(2.5)

A = 27 cm²

8 0

3 years ago

Question 1.1. Suppose a normal distribution has a mean of 20 and a standard deviation of 4.

Nookie1986 [14]

Answer: Question 1.1: It is 1.5 standard deviations away from the mean.

Our value of 26 is 6 units about the mean of 20. If each standard deviation is 4, we just divide 6 by 4. This gives us the number of standard deviations.

Question 2.2 The correct answer is -0.52

If we are 0.52 standard deviations below the mean, then our z-score is simply -0.52. The definition of a z-score is the number of standard deviations from the mean.

7 0

3 years ago

2 of 5

olya-2409 [2.1K]

Echa t-shirt is 6 dollars and ecah hat is 5
29-23=6
And 6•4=24
29-24=5

4 0

3 years ago

the width of a rectangle is 7 meters greater than its length.If the area of the rectangle is 170 square meters, write the quadra

Anika [276]

Answer:

$x^2+7x-170 = 0$