Ask question

Ask question

All categories

3 years ago

5

Darnel has pulled 4 brown marbles and 10 other marbles from a large bag. Based on experimental probability, how many of the next

28 marbles selected should you expect to be brown marbles?

1 answer:

saw5 [17]3 years ago

7 0

Answer:

8 brown marbles

Step-by-step explanation:

Daniel has pulled 4 brown out of 14.

The number of marbles doubled, so the number of brown is expected to double:

4*(28/14) = 4*2 = 8

You might be interested in

Please Help. If ∠P is given as well as the values of p, q, and r, then explain whether the Law of Sines or the Law of Cosines sh

sertanlavr [38]

Answer:

Both Law of Sines and Cosines can be used to determine the angle Q.

Step-by-step explanation:.

Since from Law of Sines with one angle and three sides we can find other angles using the ratio obtained with the given angle and side length opposite side if angle P is not given we couldn't use this.

Law of Cosines can be used to find any angle of triangle with all three side lengths given and angle P is also not required to find angle Q.

3 0

4 years ago

Read 2 more answers

Given f(x) = 4x + 2, find f-1(3).

Alexxandr [17]

Answer:

1/4

Step-by-step explanation:

The inverse function tells you the input value that corresponds to the given output value of the function.

<h3>Application</h3>

You want f^-1(3), which is the value of x such that f(x) = 3.

f(x) = 3 = 4x +2

1 = 4x . . . . . . subtract 2

1/4 = x . . . . . divide by 4

The inverse function of 3 is 1/4:

$\boxed{f^{-1}(3)=\dfrac{1}{4}}$

4 0

2 years ago

Angle 0 lies in the second quadrant and sin 0 = 3/5 cos= coy =

Elza [17]

Consider the right triangle ABC with legs AB=4, AC=3 and hypotenuse BC=5. Angle B has
$\sin B=\frac{opposite}{hypotenuse} = \frac{3}{5}$ and
$\cos B = \frac{adjacent}{hypotenuse} = \frac{4}{5}$ .

Since O lies in second quadrant $\cos O\ \textless \ 0$ and
$\cos O= -\cos B =- \frac{4}{5}$ .
Answer: $\cos O=- \frac{4}{5}$ .

3 0

4 years ago

What point is the center of dilation

igor_vitrenko [27]

Answer:

The answer is C/Point E

Step-by-step explanation:

I did the test.

4 0

3 years ago

Read 2 more answers

Translate the sentence into an equation. The sum of 3 times a number and 7 is 19.

klemol [59]

D. Because you're multiplying 3 by a number which is what the variable represents (n), then you're just adding 7 to that which equals 19 all together. It all translates to 3n+7=19.

7 0

3 years ago