3 years ago

I need help please!!!!!!!

Mathematics

1 answer:

Aleonysh [2.5K]3 years ago

6 0

It is an acute angle

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15. please 10 points if you help me with this question

anzhelika [568]

No it does not stay the same

Original ratio is 6:5 which means it will only stay the same if the amount of movies to band is taken at multiples of this ratio. per sample if 24 movies are sold then

24/6=4 so you will have to multiply or sell 5*4=20 of the band ones to be able to keep same ratio.

4 0

3 years ago

If (x+2) is a factor of x^3-6x^2+kx+10, k=

tensa zangetsu [6.8K]

If a polynomial is divisible by $x-a$ , then $a$ is a root of this polynomial.
Here (x-a) is equal to x+2:

$x-a=x+2 \\
-a=2 \\
a=-2$

So -2 is a root of the polynomial. That means <span>x³-6x²+kx+10</span>=0 for x=-2. Now substitute -2 for x in the equation and solve for k:

$(-2)^3-6 \times (-2)^2+ k \times (-2)+10=0 \\
-8-6 \times 4-2k+10=0 \\
-8-24-2k+10=0 \\
-2k-22=0 \\
-2k=22 \\
\boxed{k=-11}$

5 0

4 years ago

Find they coordinate of the vertex <img src="https://tex.z-dn.net/?f=f%28%202%29%20%3D2%5E%7B2%7D%20-4%282%29-5" id="TexFormula1

Sati [7]

Can’t solve this the problem isn’t typed out right

8 0

3 years ago

Solve for x. 5x+9=24

OlgaM077 [116]

Answer:

$5x = 24 - 9 \\ 5x = 15 \\ x = \frac{15}{5} \\ x = 3$