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Monica [59]
3 years ago
9

3 Sarah left home at 10:00 and cycled north in

Mathematics
1 answer:
nekit [7.7K]3 years ago
3 0

Answer:

a) From 10 to 11, Sarah rode 12 km in one hour. That means her velocity was 12 km/hr.

b) Sarah passed by her home at 12:45.

c) From 12 to 13, Sarah rode 15 km. Thus, her velocity was 15 km/hr. From 13 to 14 she rode 3 km. Thus, her velocity was 3 km/hr.

d) Her average velocity was 12+0+15+3/4, or 30/4 which is 7.5 km/hr.

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Mice21 [21]

Answer:

15

Step-by-step explanation:

To find the average rate if change of the exponential function between the interval [2, 6], use the formula, m = \frac{p(b) - p(a)}{b - a}

Where,

a = 2, p(2) = 4

b = 6, p(6) = 64

Plug in the above values into the formula:

m = \frac{64 - 4}{6 - 2}

m = \frac{60}{4}

m = 15

Average rate of change is 15

3 0
3 years ago
What is the period of the function f(x) shown in the graph?<br><br> Enter your answer in the box.
Anni [7]

period (T): the time it takes to travel one wave

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6 0
2 years ago
What is the distance BC between the two horizontal parallel bars?
pochemuha
One thing you should notice is that the transverse line and the parallel line form a right triangle. We are told that the base is 4 and the angle between the hypotenuse and the leg is 45°

From this we can solve for the second leg. Here's the list of trig functions

sinФ = opposite/hypotenuse
cosФ = adjacent/hypotenuse
tanФ = opposite/adjacent

Since we are only given the adjacent and we are trying to solve for the opposite leg, we can deduce we use tanФ. So we get

tan45 = x/4

Multiply by 4 to isolate x and we get

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Hopes this helps!
8 0
3 years ago
Point A is at -4 and point B is at 6. Which describes one way to find the point that
blondinia [14]

Answer:

D. For a ratio of 3:2, divide AB into 5 equal parts. Each equal part is 2 units, so the point that divides AB into a 3:2 ratio is 2.

Step-by-step explanation:

The complete question is:

<em>Point A is at –4 and point B is at 6. Which describes one way to find the point that divides AB into a 3:2 ratio? </em>

  • In a 3:2 ratio there are 3 + 2 = 5 equal parts.
  • The distance between points A and B is: 6 - (-4) = 6 + 4 = 10 units.
  • Each equal part is 10/5 = 2 units.
  • Point 2 is at 2 - (-4) = 6 units from -4
  • Point 2 is at 6 - 2 = 4 units from 6
  • Ratio 6:4 is equivalent to ratio 3:2
6 0
3 years ago
What is -5(k+2)=13-(k-1)
sashaice [31]

Answer:

k=-6

Step-by-step explanation:

-5k-10=14-k

-24=4k

k=-6

6 0
3 years ago
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