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luda_lava [24]
3 years ago
5

Write the following number in scientific notation: 0.0008228 PLEASE HELP QUICK

Mathematics
1 answer:
Ad libitum [116K]3 years ago
4 0

Answer:

0.0008228 to standard form =

8.228 x 10^-4

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HELP! What is angle 5? (PICTURE INCLUDED)
lapo4ka [179]

Answer:

Angle 5 = 122

Step-by-step explanation:

Assume EB and AD intersect each other at point C

As this is the circle, four points A,B,D,E are all on the circle, so that we have:

+) m∠EBD = 1/2 measure of arc ED (small arc)

=> m∠EBD = 1/2 . 66 = 33 degree

=> m∠CBD = 33

+) m∠ADB = 1/2 measure of arc AB (small arc)

=>m∠ADB = 1/2 . 50 = 25 degree

=>m∠CDB = 25 degree

In the triangle CDB, we have total measure of three internal angles is 180 degree

=> Angle 5 + m∠CDB + m∠CBD = 180

=> Angle 5 + 25 + 33 = 180

=> Angle 5 = 180 -25 - 33 = 122 degree

6 0
3 years ago
HELP ASAP PLS.
Sindrei [870]

Step-by-step explanation:

I have no idea if I'm doing it right but my guess would be to take the values that we get from f(x) and g(x) when x = 1.  Therefore we get that f(x) is equal to 4 and g(x) is equal to -1.  We than just do f/g which is 4/-1 which gives us the final answer of -4 which is option B.

Answer:  Option B, -4

5 0
2 years ago
. 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.

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