$log_{2}x -log_{4}x= -2 \\ \\ log_{2}x -\frac{log_{2}x}{log_{2}4}= -2 \\ \\ log_{2}x*(1-\frac{1}{log_{2}4})=-2 \\ \\ log_{2}x*(1-\frac{1}{2})=-2 \\ \\\frac{1}{2}*log_{2}x=-2 \\ \\ log_{2}x=-4, \\ \\ x=2^{-4} = \frac{1}{2^{4}}=0.0625$

5 0

3 years ago

On a map of Tennessee, one inch represents 15 miles. If Chattanooga and Nashville are 11.3 inches apart on the map, how many mil

Amanda [17]

The correct answer is d that is because if it is 1 onch per 15 miles then do 11x15 and you get 165 c and d are the only 2 close enough to be it but from there you can cancel c because its 11.3 which means it must be more than 165. and d is the only one that is greater then 165

8 0

3 years ago

100 POINTS

Katyanochek1 [597]

Answer:

3.8

Step-by-step explanation:

h(t) = -4.9 t² + v₀ t + h₀

Given that v₀ = 0 and h₀ = 70:

h(t) = -4.9 t² + 70

When the rock hits the ground, h(t) = 0.

0 = -4.9 t² + 70

4.9 t² = 70

t² = 14.3

t = 3.8

The rock hits the ground after 3.8 seconds.

7 0

3 years ago

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