Answer: Approximately 137.74977 square units
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Explanation:
We can use Heron's formula to find the area of a triangle when given all three sides.
First we need the semiperimeter
s = semiperimeter
s = (perimeter)/2
s = (a+b+c)/2
s = (28+28+10)/2
s = 33
Now we can compute the area of the triangle.
![A = \sqrt{s(s-a)(s-b)(s-c)}\\\\A = \sqrt{33(33-28)(33-28)(33-10)}\\\\A = \sqrt{18975}\\\\A \approx 137.74977\\\\](https://tex.z-dn.net/?f=A%20%3D%20%5Csqrt%7Bs%28s-a%29%28s-b%29%28s-c%29%7D%5C%5C%5C%5CA%20%3D%20%5Csqrt%7B33%2833-28%29%2833-28%29%2833-10%29%7D%5C%5C%5C%5CA%20%3D%20%5Csqrt%7B18975%7D%5C%5C%5C%5CA%20%5Capprox%20137.74977%5C%5C%5C%5C)
Answer:
let alpha be x and beta be y
Step-by-step explanation:
x+y= -b/a
x+y=-1/6
and xy= c/a
xy= -1/3
according to question
1/x+1/y -xy =(x+y)/xy-xy
(-1/6)/(-1/3)-(-1/3)
1/2+1/3
the answer is 5/6
You add three to both sides.
x − 3 + 3 = 10 + 3
x = 13
Therefore, your answer is x = 13.
Answer:
24
Step-by-step explanation:
in this, the blank is 'y'. I filled the x with -8
)(−8)−(−8−40)=(2)(−8)−(y−8)
Step 1: Simplify both sides of the equation.
(10)(−8)−(−8−40)=(2)(−8)−(y−8)
(10)(−8)+−1(−8−40)=(2)(−8)+−1(y−8)(Distribute the Negative Sign)
(10)(−8)+(−1)(−8)+(−1)(−40)=(2)(−8)+−1y+(−1)(−8)
(10)(−8)+8+40=(2)(−8)+−y+8
−80+8+40=−16+−y+8
(−80+8+40)=(−y)+(−16+8)(Combine Like Terms)
−32=−y+−8
−32=−y−8
Step 2: Flip the equation.
−y−8=−32
Step 3: Add 8 to both sides.
−y−8+8=−32+8
−y=−24
Step 4: Divide both sides by -1.
−y
−1
=
−24
−1
y=24
Answer:
y=24
I think
y = 3x - 9x + 3x - 2
y = - 3x - 2