Which three side lengths best describe the triangle in the diagram? O INCHES
1
2
0 1
3
4
5
6
-N
7
-
2
3
O INCHES
1.2
Oi 2 4 5 6
o 1 2 3 4 5 6 7
0 INCHES
A. 5 cm, 5 cm, and 8 cm
B. 5 cm, 6 cm, and 7 cm
C. 5 cm, 7 cm, and 7 cm
D. 5 cm, 5 cm, and 7 cm

step-by-step explanation:

dont think so

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15