3 years ago

Find the area of the triangle when the coordinates are (2.5,4.5),(2,0),(9,2)

1 answer:

6 0

The area of the triangle is 14.625.... in order to find the area of a triangle just use this formula b×h÷2

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Zina [86]

I think Si is more reactive

5 0

2 years ago

mixas84 [53]

(X)(3.25)(4)= 110.5
4
(x)(3.25)= 27.625
3.25
x = 8.5
(8.5)(3.25)(4)= 110.5

5 0

3 years ago

allochka39001 [22]

Answer:

The answer to the problem is J

7 0

3 years ago

irga5000 [103]

Answer:

-4, -2, -3-2i, -3+2i

Step-by-step explanation:

The of the polynomial equation are those values of x, for which f(x)=0.

Consider equation

$f(x)=0\\ \\(x^2+6x+8)(x^2+6x+13)=0$

By zero product property,

$x^2+6x+8=0\ \text{or}\ x^2+6x+13=0$

Solve each equation:

1. $x^2+6x+8=0$

$D=6^2-4\cdot 8=36-32=4\\ \\x_{1,2}=\dfrac{-6\pm \sqrt{4}}{2}=\dfrac{-6\pm 2}{2}=-4,\ -2$

2. $x^2+6x+13=0$

$D=6^2-4\cdot 13=36-52=-16=16i^2\\ \\x_{1,2}=\dfrac{-6\pm \sqrt{16i^2}}{2}=\dfrac{-6\pm 4i}{2}=-3-2i,\ -3+2i$

5 0

3 years ago

umka2103 [35]

Answer choice is b c d

5 0

3 years ago