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3 years ago

12

What are the solutions to the quadratic equation x2 - 16 = 0?

1 answer:

enot [183]3 years ago

7 0

X=4 x=-4 Due to the difference in squares theorem

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Alex777 [14]

Answer:

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Step-by-step explanation:

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The coordinates of the vertices of □PQR are (-2,5), Q(-1,), and R(7,3). Determine whether □ PQR is a right triangle. Show Your W

alexdok [17]

Answer:

Slope of PQ

m

r

=

y

Q

−

y

P

x

Q

−

x

P

=

1

−

5

−

1

−

(

−

2

)

=

−

4

Slope of QR

m

p

=

y

R

−

y

Q

x

R

−

x

Q

=

3

−

1

7

−

(

−

1

)

=

1

4

Slope of RP

m

q

=

y

R

−

y

P

x

R

−

x

P

=

3

−

5

7

−

5

=

−

1

Since slopes PQ & PR,

m

r

=

−

1

m

p

, it's a right triangle

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3 years ago

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kotykmax [81]

Answer: -23

Step-by-step explanation:

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It's undefined, but I think you spelled it wrong.

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