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GalinKa [24]
3 years ago
8

How do you rearrange the formula for the variable indicated:

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
6 0

Watch closely.  I'll try to go slow:

You said                                      <u>v² = 2 g t</u>

Divide each side by  2g :    <em>v² / 2g  =       t</em>

Did you follow that ?

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if y varies inversely as x and y = 194 when x = -13, find y when x = 50. Round your answer to the nearest hundredth, if necessar
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\therefore \: y =  \frac{k}{x}  \\ (k = constant \: of \: proportionality) \\   \therefore \: xy =  k...(1) \\ plug \: y = 194 \:  \: and \:  \: x =  - 13 \: in \: (1) \\ \therefore \:  - 13 \times 194=  k \\ \therefore \: k =  - 2522 \\ substituting \: k =  - 2522 \: in \: (1) \\ xy =  - 2522...(2) \\ this \: is \: equation \: of \: variation. \\ plug \: x = 50 \: in \: (2) \\ 50 \times y =  - 2522 \\  \therefore \:y =  \frac{ - 2522}{50}  \\   \huge \red{ \boxed{\therefore \:y =   - 50.44}}

8 0
3 years ago
Wouldn't it be -1 I keep getting me wrong answer
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Have u tryed 1 insted of -1 or it might be o solution

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