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Alex73 [517]
3 years ago
13

How long is the minute hand on a clock whose tip travels 15 cm from 1:15 to 1:30 to the nearest tenth?

Mathematics
2 answers:
Slav-nsk [51]3 years ago
7 0

Answer:

b, 9.5

Step-by-step explanation:

tamaranim1 [39]3 years ago
5 0
We are given the data of the minute hand traveling from 1:15 to 1:30 and a displacement of the hand by 15 cm. In this case. the arc length is the 15 cm while the angle of the sector can be derived from the clock times. The angle between <span>1:15 to 1:30 is approximately 90 degrees or pi/2. hence the radius can be computed from:

s = r theta
15 = r * pi/2
r = 9.55 cm</span>
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a tank holds 5000 gallons of water, which drains from the bottom of the tank in half an hour. The values in the table show the v
erica [24]

Answer:

  • secant slopes: -213.5, -187, -145, -113, -85
  • tangent slope: -166

Step-by-step explanation:

A) the slope values you have put in your problem statement are correct. As you know, they are computed from ...

  (change in gallons)/(change in time)

where the reference point for changes is P. Using the first listed point Q as an example, the secant slope is ...

  (3410 -1275)/(5 -15) = 2135/-10 = -213.5 . . . . gallons per minute

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B) The average of the secant slopes for points Q adjacent to P is ...

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The tangent slope at point P is estimated at -166 gpm.

7 0
3 years ago
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aalyn [17]
Answer: x = 10

------------------------------------------

The two blue chords are equally distant from the center. This is shown by the segments with single tick marks. These segments are 3.5 units long. 

The bottom blue chord is 10 units long because half of it is 5 units. 

Since the chords are the same distance away from the center, this means that the blue chords are equal in length. Both blue chords are 10 units long.
6 0
4 years ago
Two negative integers are 8 units apart on the number line and have a product of 308.
Svetach [21]
Calll x the smaller negative number.

The larger number will be x + 8

The product will be x(x+8) = 308

An the equation:

x^2 + 8x = 308
x^2 + 8x - 308 =0

If you solve that equation you will get x = -22 and x = 14.

The result that you are looking is the negative, x = -22.

The larger number is -22 + 8 = -14.

(-22)*(-14) = 308

Answer: x^2 + 8x - 308 =0


3 0
4 years ago
Read 2 more answers
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REY [17]

Answer:

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Step-by-step explanation:

2x^4 × x^3 =

= 2x^(4+3)

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8 0
3 years ago
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