The number is 2, 2^2=4, 2^-2=1/4
Answer:
B
Step-by-step explanation:
half guess half looked it up haha
exterior just means outside yk so i used that to answer
hope this is right and helps :)
Answer: 4.5×10^9
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the
10
10
. The sign of the exponent will depend on the direction you are moving the decimal.
4.5
×10
9
Find the length of the line from A to C, which would be the radius using the distance formula:
Distance = √(-5 +1)^2 + 1+2)^2)
Distance = √(4^2 + 3^2)
Distance = √25
Distance = 5
The equation of a circle is written as (x-h)^2 + (y-k)^2 = r^2, where h and k is the center point X and y values and r is the radius.
The center of the circle is located at A ( -1,-2) and the radius is 5.
Replace h, k and r with those values:
(x - (-1))^2 + (y- (-2))^2 = 5^2
Simplify to get:
(x+1)^2 + (y+2)^2 = 25
Driving 350 miles requires
(350 mi) / (10.4 mi/L) ≈ 33.65 L
of petrol.
This amount of petrol would cost
(33.65 L) × (£1.29/L) ≈ £43.41
