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Ratling [72]
3 years ago
12

Need help on this one

Mathematics
2 answers:
AysviL [449]3 years ago
7 0
2x^3 - 15x^2 + 3x - 10 + -7x^3 + 4x^2 - 6x + 27

= -5x^3 - 11x^2 - 3x + 17

Hope this helps!
Alenkinab [10]3 years ago
6 0
Combine like terms then you have your answers
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a circle is centered at (-4,9)and has a radius of 11. what is the equation of the circle. use x and y​
Sholpan [36]

Answer:

(x + 4)^2 + (y-9)^2 = 121

Step-by-step explanation:

We can write the equation of a circle as

(x-h)^2 + (y-k) ^2 = r^2  where (h,k) is the center and r is the radius

(x - -4)^2 + (y-9)^2 = 11 ^2

(x + 4)^2 + (y-9)^2 = 11 ^2

(x + 4)^2 + (y-9)^2 = 121

3 0
3 years ago
Solve for x................
alexandr402 [8]

Answer:

Option C

x={1(+/-)2\sqrt{3}}


Step-by-step explanation:

we have

x^{2}-2x-11=0

we know that


The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to


x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}


in this problem we have


x^{2}-2x-11=0

so


a=1\\b=-2\\c=-11


substitute

x=\frac{-(-2)(+/-)\sqrt{-2^{2}-4(1)(-11)}} {2(1)}


x=\frac{2(+/-)\sqrt{4+44}} {2}


x=\frac{2(+/-)\sqrt{48}} {2}


x=\frac{2(+/-)4\sqrt{3}} {2}


x={1(+/-)2\sqrt{3}}


8 0
3 years ago
Read 2 more answers
Madame curie made some radium in her lab. she used 2/5 kg of the radium in an experiment and had 1 1/4 kg left. how much radium
jasenka [17]
SHE HAD 3/5 TO START I BELIEVE


8 0
3 years ago
Read 2 more answers
What number can go in 52 & 13
Blababa [14]

Answer:

13 can go into 52.

Step-by-step explanation:

52/13=4

8 0
3 years ago
HELP FAST!Which triangle has an angle measure greater than 50 degrees. explain why you chose your answer
igomit [66]

Answer:

Step-by-step explanation:

8 0
3 years ago
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