1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
N76 [4]
1 year ago
10

What is the probability that the first marbles you choose is red and the second is blue

Mathematics
1 answer:
ella [17]1 year ago
5 0

Answer:

2/9

Step-by-step explanation:

You might be interested in
Perimeter refers to the distance around 2-D figure and calculate perimeter, add the side lengths of the figure
viva [34]

Answer:

True

Step-by-step explanation:

The perimeter is the combined length of all the side lengths of a figure.

3 0
3 years ago
HELPP !!!!!!!!!!!!!!!!!!!!!!!
Umnica [9.8K]

I cannot see the picture to good
3 0
3 years ago
If sinA+cosecA=3 find the value of sin2A+cosec2A​
Irina18 [472]

Answer:

\sin 2A + \csc 2A = 2.122

Step-by-step explanation:

Let f(A) = \sin A + \csc A, we proceed to transform the expression into an equivalent form of sines and cosines by means of the following trigonometrical identity:

\csc A = \frac{1}{\sin A} (1)

\sin^{2}A +\cos^{2}A = 1 (2)

Now we perform the operations: f(A) = 3

\sin A + \csc A = 3

\sin A + \frac{1}{\sin A} = 3

\sin ^{2}A + 1 = 3\cdot \sin A

\sin^{2}A -3\cdot \sin A +1 = 0 (3)

By the quadratic formula, we find the following solutions:

\sin A_{1} \approx 2.618 and \sin A_{2} \approx 0.382

Since sine is a bounded function between -1 and 1, the only solution that is mathematically reasonable is:

\sin A \approx 0.382

By means of inverse trigonometrical function, we get the value associate of the function in sexagesimal degrees:

A \approx 22.457^{\circ}

Then, the values of the cosine associated with that angle is:

\cos A \approx 0.924

Now, we have that f(A) = \sin 2A +\csc2A, we proceed to transform the expression into an equivalent form with sines and cosines. The following trignometrical identities are used:

\sin 2A = 2\cdot \sin A\cdot \cos A (4)

\csc 2A = \frac{1}{\sin 2A} (5)

f(A) = \sin 2A + \csc 2A

f(A) = \sin 2A +  \frac{1}{\sin 2A}

f(A) = \frac{\sin^{2} 2A+1}{\sin 2A}

f(A) = \frac{4\cdot \sin^{2}A\cdot \cos^{2}A+1}{2\cdot \sin A \cdot \cos A}

If we know that \sin A \approx 0.382 and \cos A \approx 0.924, then the value of the function is:

f(A) = \frac{4\cdot (0.382)^{2}\cdot (0.924)^{2}+1}{2\cdot (0.382)\cdot (0.924)}

f(A) = 2.122

8 0
3 years ago
What is the slope of the line that passes through the line<br> containing (-6, 1) and (4, 8)?
diamong [38]
The slope is m=7/10


I hope it helps :)
6 0
3 years ago
How are functions related to solving linear equations
motikmotik

A linear function is a function with the form f(x) = ax' + b. It looks like a regular linear equation, but instead of using y, the linear function notation is f(x). To solve a linear function, you would be given the value of f(x) and be asked to find x.

8 0
2 years ago
Other questions:
  • 54 months = _____ years 5.4 years 4 years 4.5 years 5 years
    12·2 answers
  • Solve the inequality 4 - x &lt; 9
    9·1 answer
  • Celia bought a bag of 12 goldfish for $3,<br> What is the cost of 1 goldfish?
    13·1 answer
  • 4. Find the value of x in the right triangle below.<br> 60°
    7·1 answer
  • What is the point-slope form of a line with slope -3 that contains the point<br> (10, -1)?
    14·1 answer
  • Use ELIMINATION:<br> 2x - 6y = -54<br> X + 6y = 63
    13·1 answer
  • Which fraction is equal to 0.03 repating?
    8·2 answers
  • Ranking of best beers at the Portland Brewfest is an example of a(n)<br><br> scale.
    14·1 answer
  • For reviewing purposes.
    6·1 answer
  • Which describes a transformation using rotation?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!