Answer:
A. -3.84 meters
Step-by-step explanation:
Given:
A penguin can dive 2% of the total depth every 1 second.
Total depth = 48 meters.
Now we have to find 2% of 48.
= 
= 
= 0.96 meter
So, the penguin dives -0.96 meters per seconds down the water.
The negative sign represents below the surface of the water.
The total depth of the penguin after 4 seconds = 4 times -0.96
= -3.84 meters
Therefore, the answer is A. -3.84 meters
Answer:
204 4/9 °C
Step-by-step explanation:
Put the number in the formula and do the arithmetic.
°C = (5/9)(400 -32) = 5/9(368) = 204 4/9
The temperature in °C is 204 4/9.
_____
Most likely, it would be written as 205 °C in a metric version of the recipe.
5 times 20 (5/5) = 100%, 4 times 20 (4/5) = 80%, 3 times 20 (3/5) = 60%, 2 times 20 (2/5) = 40%, 1 times 20 (1/5) = 20%.
Answer:
x^2 - 2x + 5 = 0.
Step-by-step explanation:
The (0, 5) is the point where the parabola passes through the y axis (where x = 0), so we can write the equation as
y = ax^2 + bx + 5 where a and b are constants to be found.
Also, since (1, 4) and (2, 5) are points on the curve, substituting, we have the system:
a(1)^2 + 1b + 5 = 4
a(2)^2 + 2b + 5 = 5
Simplify these 2 equations:
a + b = -1 .................(1)
4a + 2b = 0..................(2)
Multiply the first equation by -2:
-2a - 2b = 2 .................(3)
Add (2) + (3):
2a = 2
a = 1.
Substitute a = 1 into (2):-
4*1 + 2b = 0
2b = -4
b = -2.
Answer:
50%
Step-by-step explanation:
