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Mathematics

1 answer:

kari74 [83]2 years ago

4 0

Answer:

The area of the triangular section is 12 square units. The area of the entire figure is 60 square units.

Step-by-step explanation:

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3 x. 3x²+x-3=0 Find the zeros

Tanya [424]

Answer:

The zeroes of this polynomial are $x_{1} \approx 0.847$ and $x_{2} \approx -1.180$ .

Step-by-step explanation:

Let $3\cdot x^{2}+x - 3 = 0$ , the quickest and most efficient approach to find the zeroes of this second order polynomial is by Quadratic Formula. For all $a\cdot x^{2}+b\cdot x + c = 0$ , roots are determined by:

$x_{1,2} = \frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}$ (1)

Where $a$ , $b$ , $c$ are coefficients of the polynomial.

If we know that $a = 3$ , $b = 1$ and $c = -3$ , then roots of the polynomial are, respectively:

$x_{1,2} = \frac{-1\pm\sqrt{1^{2}-4\cdot (3)\cdot (-3)}}{2\cdot (3)}$

$x_{1,2} =\frac{-1\pm \sqrt{37}}{6}$

The zeroes of this polynomial are $x_{1} \approx 0.847$ and $x_{2} \approx -1.180$ .

3 0

2 years ago

WRITE IN STANDARD FORM. 3z - 9z^3 - 8z^5 + 2z^2

Inga [223]

In standard for the powers decend so the answer would be -8z^5-9z^3+2z^2+3z

8 0

3 years ago

Read 2 more answers

Points M and N on the coordinate grid below show the positions of two midfield players of a soccer team:Which statement best des

pogonyaev

N is M reflected across the y-axis; only the signs of the x-coordinates of M and N are different.

Step-by-step explanation:

In question no statements are available , below statements are the required one:

N is M reflected across the x-axis; only the signs of the x-coordinates of M and N are different: N is reflected over y-axis not x-axis so, this option itself is wrong!
N is M reflected across the x-axis; only the signs of the y-coordinates of M and N are different: N-M is reflected over y-axis not x-axis , so this option is also wrong.
N is M reflected across the y-axis; only the signs of the x-coordinates of M and N are different: N-M are reflected over y-axis correct and sign of only x co-ordinate is changed as Co-ordinates are $M(-2,-2.5)$ and $N(2,-2.5)$ .Hence, this statement is correct!
N is M reflected across the y-axis; only the signs of the y-coordinates of M and N are different. N-M is reflected over y-axis , and sign of only x co-ordinate is changed not y . False statement.