Ask question

Ask question

All categories

3 years ago

15

A bag contains 6 red and 10 black marbles. If Mia picks a marble, records its color, and returns it to the bag 200 times, how ma

ny times can she expect to pick a black marble?

1 answer:

Daniel [21]3 years ago

7 0

She can expect to pick a black marble 125 times

You might be interested in

Once second I'm ggettin the question

EleoNora [17]

Answer:

0.51

Step-by-step explanation:

-32÷(-61)

in this case the subtraction have to cancel themselves

so it'll remain

32÷61

=0.508

approximately ~=0.51

3 0

3 years ago

The first three terms of an arithmetic sequence are 3k-1, 4k+1, 6k-2. What is the value of k?

yawa3891 [41]

Answer:

k = 5

Step-by-step explanation:

First three terms of an AP are 3k-1, 4k+1, 6k-2.

First term is 3k-1

For an AP,

a₂-a₁=a₃-a₂

4k+1-(3k-1)=6k-2-(4k+1)

4k+1-3k+1=6k-2-4k-1

k+2=2k-3

Separating like terms,

k-2k=-3-2

-k=-5

k = 5

So, the value of k is 5.

4 0

4 years ago

What is the best approximation for the input value when f(x)=g(x)?

Lostsunrise [7]

Answer:

$x=0$ and $x=1$ .

Step-by-step explanation:

If we have to different functions like the ones attached, one is a parabolic function and the other is a radical function. To know where $f(x)=g(x)$ , we just have to equalize them and find the solution for that equation:

$x^{2}=\sqrt{x} \\(x^{2} )^{2}=(\sqrt{x} )^{2}\\x^{4}=x\\x^{4}-x=0\\x(x^{3}-1)=0\\$

So, applying the zero product property, we have:

$x=0\\x^{3}-1=0\\x^{3}=1\\x=\sqrt[3]{1}=1$

Therefore, these two solutions mean that there are two points where both functions are equal, that is, when $x=0$ and $x=1$ .

So, the input values are $x=0$ and $x=1$ .

8 0

3 years ago

Read 2 more answers

Math troubles :/ greatly appreciated if you can help

RUDIKE [14]

Answer:

$V=523.33$

Step-by-step explanation:

$V=\frac{4\pi r^3}{3}$

$V=\frac{4\pi 5^3}{3}$

$V=\frac{500\pi }{3}$

$V=\frac{500*3.14 }{3}$

$V=\frac{1570 }{3}$

$V=523.33$

5 0

3 years ago

Find the interquartile range for the data set: 10,3,8,6,9,12,13

dedylja [7]

Let’s put it from least to greatest.
3 8 6 9 10 12 13
The median is 9.
Quartile one is 8
Quartile 3 is 12
12-8
4 is the IQR

4 0

3 years ago

Read 2 more answers