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3 years ago

2. Solve: 7(5x-2) = 6(6x - 1).

Mathematics

1 answer:

slamgirl [31]3 years ago

3 0

Answer:

-8

Step-by-step explanation:

35x-14=36x-6

35x-36x=-6+14

-x=8

x=-8

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You tell your 3 friends that you are going to a magic show. It turns out, in an amazing coincidence, they each

Inga [223]

Answer:

$\frac{1}{4845}$ probability that you and your 3 friends will be selected.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question, the order in which the volunteers are chosen is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Desired outcomes:

You and the 3 friends(4 people), from a set of 4. So

$D = C_{4,4} = \frac{4!}{4!0!} = 1$

Total outcomes:

20 people from a set of 20. So

$T = C_{20,4} = \frac{20!}{4!16!} = 4845$

Probability:

$p = \frac{D}{T} = \frac{1}{4845}$

$\frac{1}{4845}$ probability that you and your 3 friends will be selected.

8 0

3 years ago

2. What is the equation of a hyperbola with a = 8 and c=20

jek_recluse [69]

Answer:

Just Assume that the transverse axis is horizontal

5 0

3 years ago

X 12 = 6 10 give your answer as an improper fraction in its simplest form.

Alika [10]

Answer:

41/6

Step-by-step explanation:

Take the root of both sides and solve.

3 0

3 years ago

Find the Derivative y’ implicitly.

Brums [2.3K]

$e^{x^2y} - e^y = e^y(e^{x^2} - 1) = x$

We should ISOLATE x

$e^y= \frac{x}{e^{x^2} - 1}$

Find the Natural Log of Both Sides to Make the Left Side "y"

$y = ln(\frac{x}{e^{x^2}-1})$

Now, FIND THE DERIVATIVE Using Chain Rule!!!

$y' = \frac{1}{\frac{x}{e^{x^2}-1}} * \frac{(1(e^{x^2}-1) - x(2x*e^{x^2})}{(e^{x^2}-1)^2}= {\frac{e^{x^2}-1}{x}}* \frac{(1(e^{x^2}-1) - x(2x*e^{x^2})}{(e^{x^2}-1)^2} = {\frac{1}{x}}* \frac{(1(e^{x^2}-1) - x(2x*e^{x^2})}{(e^{x^2}-1)} = {\frac{1}{x}}* \frac{(e^{x^2}-1 - 2x^2e^{x^2})}{(e^{x^2}-1)}$

3 0

3 years ago

Please help me out if possible.

Katena32 [7]

Answer:

Step-by-step explanation:

Plotting the points in a sketch quickly shows that the vertices are not at right angles to each other, thus excluding rectangle and square whose vertices are at right angles.

The best selection is a rhombus

5 0

4 years ago