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notsponge [240]

3 years ago

13

(5 + 4 – 2) × (–2) =

1 answer:

OLga [1]3 years ago

3 0

Solve within the parentheses first. 5 + 4 is 9. Now subtract that by to get 7. Now you multiply 7 by -2. First multiply 7 and 2 to get 14. Since it is a negative number multiplying by a positive number change 14 into a negative number. The answer is -14.

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Read 2 more answers

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svlad2 [7]

Answer:

$Average\ Change = -1\frac{7}{10} ft/s$

Step-by-step explanation:

Given

$Altitude\ Change = -4\frac{1}{4} \ ft$

$Time = 2\frac{1}{2}\ s$

Required

Determine the average change

This is calculated as follows:

$Average\ Change = \frac{Altitude\ Change}{Time}$

This gives:

$Average\ Change = \frac{-4\frac{1}{4}}{2\frac{1}{2}}$

$Average\ Change = -4\frac{1}{4}/2\frac{1}{2}$

Convert to improper fractions

$Average\ Change = -\frac{17}{4}/\frac{5}{2}$

Convert to multiplication

$Average\ Change = -\frac{17}{4}*\frac{2}{5}$

$Average\ Change = -\frac{17}{2}*\frac{1}{5}$

$Average\ Change = -\frac{17}{10}$

$Average\ Change = -1\frac{7}{10} ft/s$

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Answer:

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Step-by-step explanation:

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