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lapo4ka [179]
3 years ago
9

If the domain of the square root function f(x) is x <_7, which statement must be true?

Mathematics
1 answer:
tresset_1 [31]3 years ago
4 0
The answer to this isb
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Mary walks from comer D to comer E to comer F on a city block that measures 264 feet wide and 900 feet long. Kate walks
Y_Kistochka [10]

Answer:

Difference between the distances traveled by Mary and Kate = 226 feet

Step-by-step explanation:

By applying Pythagoras theorem in right ΔDEF,

(DE)² + (EF)² = (DF)²

By substituting DE = 264 feet and EF = 900 feet

(264)² + (900)² = (DF)²

DF = √(69696+810000)

     = √879696

     = 937.92

Distance traveled by Kate diagonally = 938 feet

Distance traveled by Mary = DE + EF

                                            = 264 + 900

                                            = 1164 feet

Difference between the distances traveled by Mary and Kate = DF - (DE + EF)

= 1164 - 937.92

= 226.07

≈ 226 feet

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2 years ago
A hungry Emperor penguin was swimming 21 feet below sea level. It swam up 9 feet to eat a fish. What is the position of the peng
MatroZZZ [7]

Answer:

Step-by-step explanation:

21 feet below is written as -21

9 feet up is written as +9

So we have -21 + 9 = -12 or 12 feet below sea level

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3 years ago
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Answer:

500

Step-by-step explanation:

Let the unknown number be n.  Then 1.5n = 750, and n = 500.

750 is 150 percent of 500.

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Vince can mop a floor in 30 minutes. Annie can mop the same floor in 45 minutes. How long would it take them to mop the floor if
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Answer: 15 i think

Step-by-step explanation: not sure

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Find the percentage of 1 nickel and 4 pennies
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