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3 years ago

Where is the transverse axis of the hyperbola x^2-4y^2=16

1 answer:

3 0

<span> <span>x^2-4y^2=16</span></span>

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

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Pleease help with this one math question?

dmitriy555 [2]

Answer:

square root 12^5

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

if a sample size 40 is drawn from the population that has mean 276 and a variance of 81, what is the probability that the mean o

lapo4ka [179]

Answer:

The probability is 0.017429

Step-by-step explanation:

We start by calculating the z-score

Mathematically;

z-score = (x-mean)/SD/√n

In this case;

x = 273

mean = 276

SD = √(variance) = √81 = 9

n = 40

Substituting these values into the z-score formula, we have that;

z = (273-276)/9/√40

z = -2.11

So we proceed to get the probability

the probability in this case is;

P( z < -2.11)

We can use the normal distribution table for this

Our answer will be

P( z < -2.11) = 0.017429

4 0

3 years ago

Ryan has his own business selling watches, and he wants to monitor his profit per watch sold. The expression 200x-300/x models t

ololo11 [35]

Okay I’ll solve this but it’ll take a while to answer but I’ll try my best to finish as fast as I can!

8 0

2 years ago

Find the distance between (-1,-2) and (8,9)

Rom4ik [11]

Answer:

$\sqrt{202}$ units or 14.2 units (rounded to the nearest tenth)

Step-by-step explanation:

To find the distance between a pair of two points, use the distance formula $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ . Substitute the x and y values of (-1,-2) and (8,9) into the formula and simplify:

$d = \sqrt{(-1-8)^2+(-2-9)^2} \\d = \sqrt{(-9)^2+(-11)^2} \\d = \sqrt{81+121} \\d= \sqrt{202}$

So, as an exact answer, the distance is $\sqrt{202}$ units.

(To find the decimal approximate of that answer, enter it into a calculator. This would make the decimal approximate 14.2 units, when rounded to the nearest tenth.)

7 0

3 years ago

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4 what’s the answer to this question

lesantik [10]

D. 1/2

We have 4 different suits and we want to know probability of getting a heart or diamond.

We have 2/4 or 1/2 or 50% chance to pick up a heart or diamond card.

8 0

3 years ago