Answer:
1 2/7
Step-by-step explanation:
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Answer: 34</h3><h3 /><h3 /><h3 /><h3>
Step-by-step explanation: 2 – 8 - [- 4 – (-6 + 3 -9)] X ( -10 ÷2)</h3><h3>Así es como resolví esta pregunta: usé PEMDAS significa paréntesis, exponentes, multiplicación o</h3><h3> División, suma y resta...</h3><h3>Espero que la hayan resuelto bien!</h3>
Answer: x=2
Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.
Hope this helps you out! ☺
Step-by-step explanation:
The volume of the shell is the volume of the outer sphere minus the volume of the inner sphere.
V = 4/3 π (r+h)³ − 4/3 π r³
V = 4/3 π (r³ + 3r²h + 3rh² + h³) − 4/3 π r³
V = 4/3 π r³ + 4π r²h + 4π rh² + 4/3 π h³ − 4/3 π r³
V = 4π r²h + 4π rh² + 4/3 π h³
If h = 0.1 r:
V = 4π r² (0.1 r) + 4π r (0.1 r)² + 4/3 π (0.1 r)³
V = 0.4π r³ + 0.04π r³ + 0.00133π r³
V = 0.44133π r³
Using the approximation:
V = 4π r² h
V = 4π r² (0.1 r)
V = 0.4π r³
The approximation is reasonable if h is small compared to r.
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Answer: 75 cars (choice C)</h3>
Explanation:
x = 13 represents 1 PM since it is 13 hours after 12:00 AM midnight.
Fast forward another 3 hours and we get to x = 13+3 = 16 to represent 4 PM
Mark 16 on the x axis. Then draw a vertical arrow upward until you get to the parabola. From there, draw a horizontal line to the left until reaching the y axis. See the diagram below.
You should arrive between y = 60 and y = 90. A good estimate is to find the midpoint
midpoint = (a+b)/2 = (60+90)/2 = 150/2 = 75
We estimate that about 75 cars are expected to be parked at 4 PM.