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enyata [817]
3 years ago
7

There is a bag filled with 3 blue and 4 red marbles a marble is taken at random from the bag the colour is noted and then it's r

eplaced another marble is taken at random what is the probability of getting at least 1 red?
Mathematics
1 answer:
julia-pushkina [17]3 years ago
5 0

Answer:

A marble is taken at random from the bag, the colour is noted and then it is not replaced.

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In Δ ABC and ΔD BC

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Cherie is jogging around a circular track. She
skelet666 [1.2K]

Answer:

Measure of minor angle JOG is 95.5^{\circ}

Step-by-step explanation:

Consider a circular track of radius 120 yards. Assume that Cherie starts from point J and runs 200 yards up to point G.  

\therefore m JG = 200 yards, JO=120 yards.  

Now the measure of minor arc is same as measure of central angle. Therefore minor angle is the central angle \angle JOG = \theta.

To calculate the central angle, use the arc length formula as follows.  

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\dfrac{200}{120}=\theta  

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\therefore \dfrac{5}{3}=\theta  

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Now convert radian into degree by using following formula,

1^{c}=\left(\dfrac{180}{\pi}\right)^{\circ}

So multiplying \theta with \left(\dfrac{180}{\pi}\right)^{\circ} to convert it into degree.

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