Answer:
x = 4 ±
Step-by-step explanation:
x² - 8x + 16 = 3 ← the left side is a perfect square
(x - 4)² = 3 ( take square root of both sides )
x - 4 = ± ( add 4 to both sides )
x = 4 ±
Step-by-step explanation:
"If the sum of 2 angles is 180°, then each is the supplementary angle of the other".
8x - 15 = 3x
+15 +15
8x = 3x + 15
-3x
5x = 15
/5 /5
x = 3
Answer:
24/5 or 4 and 4/5
Step-by-step explanation:
3 and 3/4=15/4
18 divided by 15/4=4 and 4/5
4 and 4/5=24/5
24/5 times 15/4=18
Answer:
Since the screw is smaller than 3/4 mm and larger than 5/8 mm,
we can make an inequality from the given data
3/4 > x > 2.5/4
where x is the width of the screw
So since the value is greater than 2.5/4 and less than 3/4,
the approximate value will be the mean of the two values
(2.5/4) + (3/4) = 5.5/4 = 11/8 mm