Answer:
Step-by-step explanation:
18/30 × 100%
= 0.6 × 100%
= 60%
It is a right triangle. If it contains the 90°, it is definitely a right triangle.
Answer:
x = 7
y = 2
Step-by-step explanation:
x² - y² = 45
(x+y) (x-y) = 45
x + y = 9 (known)
9 x (x-y) = 45
x - y = 5
y = x-5
x + (x - 5) = 9 (substitute)
2x = 14
x = 7
y = 2
Dang your device is so dim turn it up I can’t read the question
Answer: 9 - 2x
Step-by-step explanation:
5x + 1 - 7x + 8
9 - 2x
