Answer:
The number is 2. :)
Step-by-step explanation:
4x + 2 = 2x + 6
-2 -2
4x = 2x + 4
-2x -2x
2x = 4
/2 /2
x = 2
Answer:
50
Step-by-step explanation:
70+60 =130
180-130 = 50 degrees
Pythagoras' theorem:
b^2 = c^2 - a^2
Substitute in the values:
b^2 = 13^2 - 12^2
b^2 = 25
Square root it
b = 5km
The answer is option B. 5km
9 a
------ = -----
a 5
a^2 = 45
a = 3<span>√5
</span>
4 b
------ = -----
b 5
b^2 = 20
b = 2√5
answer:
a = 3√5
b = 2√5
hope it helps
Answer:
C
Step-by-step explanation:
7*7=49
