Answer:
Step-by-step explanation:
Given number
It is not in scientific notation because:
- <em>The proper format for scientific notation is a×10ᵇ where </em><em>a</em><em> is a number or decimal number such that </em><em>the absolute value of a is greater than or equal to one and less than ten or, 1 ≤ |a| < 10</em>
As we see 17.4 > 10 which is against the rule above
Answer:
i. 
+ 26x + 144 - 299 = 0
ii. x = 5
Step-by-step explanation:
The area of the figure = 299 cm²
The figure has a shape of a rectangle, so that;
Area of rectangle = length x width
length of the figure = 18 + x
width of the figure = 8 + x
Area of the figure = (18 + x) x (8 + x)
299 = (18 + x) x (8 + x)
299 = + 26x + 144
+ 26x + 144 - 299 = 0
+ 26x - 155 = 0
applying the trigonometric formula;
x = (-b ± 
) ÷ 2a
= (-26 ± 
) ÷ 2
= (-26 ± 
) ÷ 2
= (-26 ± 
) ÷ 2
= (-26 ± 36) ÷ 2
x = (-26 + 36) ÷ 2 OR x = (-26 -36) ÷ 2
= 10 ÷ 2 OR -62 ÷ 2
= 5 OR -31
Thus, x = 5
Answer:
Answer C
Step-by-step explanation:
If the polygon has n sides, then the number of diagonals the polygon has is
(n - 3)*n/2
So for a seven sided figure the number of diagonals would be
(7 - 3)(7)/2 = 4*7/2 = 28/2 = 14
Use pi•r^2 for the formula of a circle. filling it in, you get 3.14•64 which is 200.96
Step-by-step explanation:
If 1 gallon = 3.785 litres
Then, 10 gallons = 37.85 litres
