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Paha777 [63]
3 years ago
10

Solve for u in terms of r, s, and t. t= –rsu u=

Mathematics
1 answer:
Stella [2.4K]3 years ago
8 0

Answer:

u = - \frac{t}{rs}

Step-by-step explanation:

Given

t = - rsu ( multiply both sides by - 1 )

- t = rsu ( divide both sides by rs )

- \frac{t}{rs} = u

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Read 2 more answers
The first term of an AP is -7 and the ratio of the eight term to the third term is 7:1 calculate the common difference
alukav5142 [94]

Answer:

the common difference is 6.

Step-by-step explanation:

Given;

first term of an AP, a = -7

let the common difference = d

The third term is written as;

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The eight term is written as;

T₈ = a + 7d

The ratio of the eight term to third term = 7:1

\frac{T_8}{T_3} = \frac{7}{1} = \frac{a+ 7d}{a + 2d} \\\\7 =  \frac{a+ 7d}{a + 2d}\\\\Recall, a = -7\\\\7 =   \frac{-7+ 7d}{-7 + 2d}\\\\7(-7 + 2d) = -7+ 7d\\\\-49 + 14d = -7 + 7d\\\\14d -7d = -7 + 49\\\\7d = 42\\\\d = \frac{42}{7} \\\\d = 6

Therefore, the common difference is 6.

4 0
3 years ago
Suppose a certain forest fire doubles in size every 12 hours. If the initial size of the fire was 1 acre, how many acres will th
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4 years ago
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Have a nice day! :)
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4 years ago
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