3 years ago

Which integer represents 7 feet below sea level?

Mathematics

1 answer:

Elan Coil [88]3 years ago

4 0

Answer: -7

Step-by-step explanation: The sea level is at 0 so 0-7= -7

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3 years ago

Axis of symmetry for f(x) = -2x2 + 20x -42

Ksenya-84 [330]

For the function $f(x)=2x^2 +20x-42$

We can use the formula for the axis of symetry, which is $x= \frac{-b}{2a}$

With the values substituted, we get...

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Therefore the axis of symmetry is $x=5$

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Step-by-step explanation:

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Citia cycles 4.2 km every morning. How many feet are in 4.2 km given that 1 mile=1.609 km and 1 mile=5,280

vfiekz [6]

4.2 km 1 mile 5,280 ft 22,176
* ---------- * ----------- = ----------- = 13,782.5 feet
1.609 km 1 mile 1.609

Using the conversion factors and setting the problem up so that you have km on top and bottom (so that they will cancel), miles on top and bottom (so that they will cancel), your answer will be left in feet.
Multiply across the numerator, then across then denominator. Finally simplify the fraction at the end.

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3 years ago

Which integer represents 7 feet below sea level?​

Which integer represents 7 feet below sea level?