3 years ago

Help pleaseee????????

Mathematics

1 answer:

miv72 [106K]3 years ago

4 0

it will be equal to the photo

median 5

lower

You might be interested in

Find the sum of these polynomials.

AfilCa [17]

<span>x² – x + 8+ 10x² + 7 = 11x²-x+15
answer A</span>

3 0

3 years ago

Read 2 more answers

Solve the equation 3x+x²=-7. Does the number of solutions match the information provided by the discriminant? Explain

MA_775_DIABLO [31]

Answer:

$-\frac{3}{2}+\frac{\sqrt{19}i}{2}$ and $-\frac{3}{2}-\frac{\sqrt{19}i}{2}$

Step-by-step explanation:

$3x+x^2=-7\\\Rightarrow x^2+3x+7=0$

Discriminant

$D=b^2-4ac\\\Rightarrow D=3^2-4\times 7\times 1\\\Rightarrow D=-19$

If the discriminant is a negative number then the roots of the equation are imaginary

$x=\frac{-b\pm \sqrtD}{2a}\\\Rightarrow x=\frac{-3\pm \sqrt{-19}}{2\times 1}\\\Rightarrow x=-\frac{3}{2}\pm \frac{\sqrt{19}i}{2}\\\Rightarrow x=-\frac{3}{2}+\frac{\sqrt{19}i}{2}, x=-\frac{3}{2}-\frac{\sqrt{19}i}{2}$

So, the two solutions are $-\frac{3}{2}+\frac{\sqrt{19}i}{2}$ and $-\frac{3}{2}-\frac{\sqrt{19}i}{2}$

3 0

3 years ago

Classify this triangle by its sides.

Lunna [17]

Answer:

isosceles but not equilateral

Step-by-step explanation:

this is because you have 2 equal sides but not all are equal for it to be a equilateral triangle

5 0

3 years ago

NEED ANSWER ASAP PLEASE!!!!

dexar [7]

Answer:

The correct answer would be D. y=2/3x+8

7 0

3 years ago

Can someone please help,, its 8th grade math

MaRussiya [10]

Answer:

the answer is x=15

I am sure

3 0

3 years ago

Read 2 more answers