Simplify the rational expression -9x/x-x^2<br><br><br>See image attatched below SOMEONE HELP ME ASAP

What is the center of a circle with the equation (x − 6)2 + (y + 2)2 = 9?

MakcuM [25]

The correct answer is C.

3 0

3 years ago

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In a class of 20 students 3/5 are boys. If 4 more boys join the class, what fraction of the class are boys now?

cupoosta [38]

if 4 more boiiz join the class it will be 2/5

6 0

3 years ago

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Please answer 6 and 7

nexus9112 [7]

Number 6 is 15 7 is 3

5 0

3 years ago

PLEASE HELP!!!! The weights in pounds of Renold's 7 dogs are 18, 22, 17, 20, 18, 20, and 18. The mean, median and mode of the we

ss7ja [257]

Answer:

mode

Step-by-step explanation:

The mode is the number which appears most often.

The median is the middle number when the numbers are put in order.

The range is the largest number minus the smallest number.

The mean is all the numbers added together divided by the total amount of numbers.

hope this helps <3

4 0

3 years ago

Posted this question 1000times. Plz some answer plz plz i beg. Plz show all working, thank you sir

Novosadov [1.4K]

Answer:

$\approx 26.16\:\mathrm{m}$

Step-by-step explanation:

Let $h$ be the height of the tree. In reference to the tree and bird, a right triangle is formed. We can write the following trig function for that right triangle:

$\tan28^{\circ}=\frac{h}{15},\\h=15\tan28^{\circ},\\h\approx 7.98\:\mathrm{m}$ .

Now we can use this to find the hypotenuse of this triangle (the distance between the cat and the bird):

Let the distance between the cat and bird be $k$ . Then,

$7.98^2+15^2=k^2,\\k\approx 16.99\:\mathrm{m}$ . This is one side of the triangle that is formed by the cat, bird, and mouse.

The right triangle formed by the tree, cat, and mouse shares the height $h$ with the other right triangle, as we found earlier. Let $l$ represent the hypotenuse of this triangle or the distance between the cat and mouse. We then have the following trig function:

$\sin 40^{\circ}=\frac{7.98}{l},\\l=\frac{7.98}{\sin40^{\circ}}\approx 12.41\:\mathrm{m}$ . This is another side of the triangle that is formed by the cat, bird, and mouse.

The triangle that is formed by the cat, bird, and mouse has shares an angle of $125^{\circ}$ with the base of the auxiliary pyramid. The other angles, however, are not shared.

Since we have two sides and the angle between these two sides, we can use the Law of Cosines to find the other side (the distance between the mouse and bird). The Law of Cosines is given by:

$m^2=k^2+l^2-2kl\cos M$ , where $m$ is the distance between the bird and the mouse and the other variables are defined above.

Plugging in values, we get:

$m^2=16.99^2+12.41^2-2\cdot16.99\cdot12.41\cdot\cos 125^{\circ}$

Solving, we get:

$m\approx \fbox{$26.16\:\mathrm{m}$}$ .

5 0

3 years ago

Simplify the rational expression -9x/x-x^2See image attatched below SOMEONE HELP ME ASAP