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2 years ago

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Two marbles are randomly drawn from a bag containing 3 purple, 1 blue, and 1 yellow marble. The first marble is blue and is not

replaced. Find the probability of drawing a second marble that is purple.

1 answer:

liq [111]2 years ago

4 0

I would say its 3/4 because there was only one blue and all together there is 4 now and the probability of picking a purple should be 3 out of 4.

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Quality control finds on average that 0.026% of the items from a certain factory are detective. One month, 4000 items are checke

telo118 [61]

Given that 4000 items are checked in one month, let the number of detective items be represented as y.

Quality control finds on average that 0.026% of the items in the factory are detective. This implies that

$\text{Number of }\det ective\text{ items = }\frac{\text{0.026}}{100}\times\text{Total number of items checked}$

When 4000 items are checked, we have the number of detective items to be evaluated as

$\begin{gathered} \text{Number of }\det ective\text{ items = }\frac{\text{0.026}}{100}\times\text{Total number of items checked} \\ y=\frac{0.026}{100}\times4000 \\ \Rightarrow y=1.04 \end{gathered}$

Hence, the number of detective items is 1.04.

7 0

7 months ago

the radius of the center circle of a basketball court is 6 feet. What is the circumference of the center circle.

Elena-2011 [213]

Remember the equation to find the circumference?

Equation of circumference: Pi x 2(radius)

Therefore, 3.141592654 x 2(6ft) = 37.7 feet

6 0

2 years ago

Read 2 more answers

Write the exact value solution and an approximation for 10^4x=25

Murrr4er [49]

Answer:

exact value: $x= \frac{log25}{4}$

approximate: x=0.349485

Step-by-step explanation:

Exact Value:

$10^{4x} = 25$

$log (10^{4x})= log 25$

$4x = log 25$

$x= \frac{log25}{4}$

Approximate:

$x= \frac{log25}{4}$

$x=1.39794/4\\$

$x=0.349485$

6 0

2 years ago

5/7 x 21/25 what is the answer to this???!!?!?!!!?

lbvjy [14]

Multiply the tops and multiply the bottoms
Aka
5*21
-------
7*25

And simplify

5 0

2 years ago

LaTeX: \frac{4}{5}\times\frac{7}{10}\:=\:4 5 × 7 10 =

Gennadij [26K]

Is that even an actual equation?

7 0

2 years ago