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Sliva [168]
3 years ago
13

determine whether the fractions -4/5 -4/6 -4/7 and -4/8 are arranged in order from least to greatest.Explain

Mathematics
2 answers:
7nadin3 [17]3 years ago
5 0
No, -4/5 is the greatest as and the numbers after it each drop in value.
Katen [24]3 years ago
3 0
-4/8, -4/7, -4/6, -4/5
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. Two bicyclists, Sarah and Emily, depart from the same location. Sarah heads N55°E at an average speed of 6 km/hr. Emily heads
Liula [17]

Answer:

The distance between them after 30 minutes is 6.5 km.

Step-by-step explanation:

Speed = \frac{distance}{time}

Sarah's speed = 6 km/hr = 1.6667 m/s

Emily's speed = 10 km/hr = 2.7778 m/s

The measure of angle between their bearings = 105^{o}

After 30 minutes (1800 seconds);

distance = speed x time

Sarah would have covered a distance = 1.6667 x 1800

                               = 3000 m

                               = 3 km

Emily would have covered a distance = 2.7778 x 1800

                               = 5000 m

                               = 5 km

The distance between them, a, can be determined by applying the cosine rule;

a^{2} = b^{2} + c^{2} - 2bcCos A

   = 5000^{2} + 3000^{2} -2(5000 x 3000) Cos 105

   = 5000^{2} + 3000^{2} -2(5000 x 3000) x (-0.2588)

   = 2.5 x 10^{7} + 9 x 10^{6} + 7764000

   = 41764000

a = \sqrt{41764000}

  = 6462.5073

a = 6462.5 m

The distance between them after 30 minutes is 6.5 km.

4 0
2 years ago
Enrollment in a photography class increased from 25 to 35 students. What was the percent of increase in enrollment?
DaniilM [7]
About 29%.
35 - 25 = 10, or the amount of change
10 / 35 = .285, or the amount of change over total
3 0
3 years ago
16 + (22a + a) = 16 + (a + 22)
mario62 [17]

Answer:

a = 1.

Step-by-step explanation:

i guess you want to solve for a:

16 + (22a + a) = 16 + (a + 22)

16 + 23a =  38 + a

22a = 38 - 16 = 22.

a = 1.

8 0
3 years ago
{x|x is an odd counting number between 8 and 16} find n(a) for the sets of 3-6​
Alex

Answer:

vsdddddddddddddddd

Step-by-step explanation:

888iiiiiiiiiiiiit3jjgfifhhh

7 0
3 years ago
If a circle has a diameter of 10cm what is the radius
FromTheMoon [43]
The radius is half the diameter so your answer would be 5.
6 0
3 years ago
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