X
4
−34x
2
+225=0
2 Factor
x
4
−
34
x
2
+
225
x
4
−34x
2
+225.
(
x
2
−
25
)
(
x
2
−
9
)
=
0
(x
2
−25)(x
2
−9)=0
3 Solve for
x
x.
x
=
±
5
,
±
3
x=±5,±3
The answer should be C, 21. I’ll attach a picture for explanation.
Answer:
D
Step-by-step explanation:
Absolute value is the distance from a point 0. Absolute value is always a positibe number, so think of all of these as positive numbers
The answer to this question is 5. after you replace x and simply you get 5 as your answer. hope this helps
Answer:
Step-by-step explanation:
area of room=15×12=180 ft²
rug =108 ft²
magnification=√(108/180)=√(9/15)=3/√15
so length of rug=15×3/√15=3√15 ft
width of rug=12×3/√15=36√15/15=2.4√15 ft
