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4vir4ik [10]
3 years ago
11

Helppppppppppppppppppppppppppp

Mathematics
2 answers:
Advocard [28]3 years ago
5 0

Answer:

X=5 and Y=4

Step-by-step explanation:

The process of elimination.

Masteriza [31]3 years ago
4 0
Use photo math for a quicker answer
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1 year ago
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What is the factored form of the expression?<br><br> d^2 = 36d + 324
Veseljchak [2.6K]

Answer:

(x-43.45)(x+7.45)=0

Step-by-step explanation:

We have the quadratic equation d^{2}=36d+324  i.e. d^{2}-36d-324=0

As, the roots of the quadratic equation ax^{2}+bx+c=0 are given by x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}.

So, from the given equation, we have,

a = 1, b = -36 , c = -324.

Substituting the values in x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}, we get,

x=\frac{36\pm \sqrt{(-36)^{2}-4\times 1\times (-324)}}{2\times 1}

i.e. x=\frac{36\pm \sqrt{1296+1296}}{2}

i.e. x=\frac{36\pm \sqrt{2592}}{2}

i.e. x=\frac{36\pm 50.9}{2}

i.e. x=\frac{36+50.9}{2}  and x=\frac{36-50.9}{2}

i.e. x=\frac{86.9}{2}  and x=\frac{-14.9}{2}

i.e. x = 43.45 and x = -7.45

Thus, the roots of the equation are 43.45 and -7.45.

Hence, the factored form of the given expression will be (x-43.45)(x+7.45)=0

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3 years ago
Name a diameter for the circle.<br><br> A.) DH<br> B.) DG<br> C.) EF<br> D.) FH
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D. FH

Diameter-
a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
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olchik [2.2K]
C.35cm
Should be the right answer
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