El radio de un círculo siempre será la mitad del diámetro. Por lo tanto, si el radio es de 4 pulgadas el doble sería 8 pulgadas.
El diámetro del círculo será de 8 pulgadas.
∵ the two triangles are congruent
AB / AD = BC / DE
8/4 = 6/ DE
DE = 6 x 3 ÷ 8 = 3 cm
Answer:
t = -1.042, when s = 4 m/s
Step-by-step explanation:
The finishing time of the runner is given as the function of tail-wind speed.
t = 0.0119 s² - 0.308 s - 0.0003
We have to find t, when s= 4 m/s
Substitute s = 4, in the above equation
t = 0.0119 (4²) - 0.308 (4) -0.0003 = 0.1904 - 1.232 - 0.003 = -1.0419
Rounding it to the nearest hundredth, we have,
t = -1.042
∴ t = -1.042, when s = 4 m/s.
18 is 40% of : 45
explanation
18/x = 40/100
Without knowing what the possible answer choices are, perhaps this is one of them:
We can rewrite this in several ways, but one that should immediately occur to you is to consider writing the denominator in terms of
:
We can further write this in terms of the reciprocal functions,
and so on...