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Arturiano [62]
3 years ago
6

Assume that each bag contains 5 balls. Bag a contains 2 red and 3 white, while bag b contains 1 red, 1 white, and 3 blue. You ra

ndomly select one ball from bag a, note the color, and place the ball in bag b. You then select a ball from bag b at random and make note of its color. What is the probability that both balls are red?
Mathematics
1 answer:
Tcecarenko [31]3 years ago
7 0

Answer:

2/15

Step-by-step explanation:

Firstly, we calculate the probability of picking a red ball from bag A.

P = number of expected outcomes/number of total outcomes.

P(R1) in bag A = 2/5

Now, we take a ball from bag A and place in bag B. If we selected a red ball, the number of balls in bag B now equals = 2 red balls while the total number of balls now equal 6 balls. Now, the probability is :

P(R2) = 2/6 = 1/3.

The total probability P(R) = P(R1) × P(R2) = 2/5 × 1/3 = 2/15

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Mrs. barney earns $80 for tutoring for 2 hours. If she gets a 10% raise, how much does she now earn per hour.
olga_2 [115]

Answer:$88


Step-by-step explanation:

multiply 80 dollars by 10% then add that answer to 80 dollars and that gives you 88 dollars


8 0
3 years ago
How long qouod it take a person traveling 10 miles per hour to trsvel 80 miles?
Bas_tet [7]

Answer:

if youre traveling 10 miles per hour then 8 hours would multiply 8 · 10 = 80 thus telling us that it would take us 8 hours to travel 80 miles. its basic math tbh...

Step-by-step explanation:


8 0
3 years ago
Read 2 more answers
Please Answer This Ixl Asap!!!
Evgen [1.6K]

Answer:

EH = 120 degrees

Step-by-step explanation:

angles in a circle add up to 360 degrees

arc EF + arc FG + arc GH + arch EH = 360

95 + 90 + 55 + EH = 360

240 + EH = 360

subtract 240 from both sides to isolate EH

EH = 120 degrees

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2 years ago
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8 0
2 years ago
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th
mash [69]

Answer:

The rocket hits the gorund after approximately 10.71 seconds.

Step-by-step explanation:

The height of the rocket <em>y</em> in feet <em>x</em> seconds after launch is given by the equation:

y=-16x^2+165x+69

And we want to find the time in which the rocket will hit the ground.

When it hits the ground, its height above ground will be 0. Hence, we can let <em>y</em> = 0 and solve for <em>x: </em>

<em />0=-16x^2+165x+69<em />

We can use the quadratic formula:

\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

In this case, <em>a</em> = -16, <em>b</em> = 165, and <em>c </em>= 69.

Substitute:

\displaystyle x=\frac{-165\pm\sqrt{(165)^2-4(-16)(69)}}{2(-16)}

Evaluate:

\displaystyle x=\frac{-165\pm\sqrt{31641}}{-32}=\frac{165\pm\sqrt{31641}}{32}

Hence, our solutions are:

\displaystyle x_1=\frac{165+\sqrt{31641}}{32}\approx 10.71\text{ or } x_2=\frac{165-\sqrt{31641}}{32}\approx-0.40

Since time cannot be negative, we can ignore the first answer.

So, the rocket hits the gorund after approximately 10.71 seconds.

7 0
3 years ago
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