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marusya05 [52]
3 years ago
13

Quadrilateral QRST is an isosceles trapezoid. Q(-3,-2); S(3,2); T(5,-2). what would point R be?

Mathematics
1 answer:
MariettaO [177]3 years ago
3 0
Here it is graphed... But I'm not sure what the x value of R would be... I know its Y value is 2

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use the discriminant to determine how many and what kind of solutions the quadratic equation x²-x=-1/4 has
pantera1 [17]

\bf x^2-x=-\cfrac{1}{4}\implies \stackrel{\textit{multiplying by }\stackrel{LCD}{4}}{4x^2-4x=-1}\implies 4x^2-4x+1=0


\bf \qquad \qquad \qquad \textit{discriminant of a quadratic} \\\\\\ \stackrel{\stackrel{a}{\downarrow }}{4}x^2\stackrel{\stackrel{b}{\downarrow }}{-4}x\stackrel{\stackrel{c}{\downarrow }}{+1} ~~~~~~~~ \stackrel{discriminant}{b^2-4ac}= \begin{cases} \boxed{0}&\textit{one solution}\\ positive&\textit{two solutions}\\ negative&\textit{no solution} \end{cases} \\\\\\ (-4)^2-4(4)(1)\implies 16-16\implies \boxed{0}

4 0
3 years ago
Plz somebody help me asap i need help
s2008m [1.1K]

Answer:

False, True, Falso True

Step-by-step explanation:

Slope is 3/1 or 3

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7 0
3 years ago
Please help me with the picture attached also, I am so confused
antoniya [11.8K]

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Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Someone please help me! <br> I really don’t understand anything
valentinak56 [21]

angle addition

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7 0
3 years ago
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Solve the following system. x2 + y 2= 25 2x + y = 10 The solution set
anzhelika [568]

Answer: {(5,0), (3,4)}

Step-by-step explanation:

You can apply the Substitution method:

- Solve for y from the second equation.

- Substitute into the first equation and solve for x.

Then:

y=10-2x

x^2+y^2=25\\x^2+(10-2x)^2=25\\

(Remember that: (a\±b)^2=a^2\±2ab+b^2)

x^2+(10^2-2(10)(2x)+(2x)^2)=25\\x^2+100-40x+4x^2=25\\5x^2-40x+75=0\\x^2-8x+15=0\\(x-5)(x-3)=0\\\\x=5\\x=3

Substitute the values obtained into one of the original equation and solve for y:

2(5)+y=10\\10+y=10\\y=0\\\\2(3)+y=10\\6+y=10\\y=4

The solution set is: {(5,0), (3,4)}

8 0
3 years ago
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