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3 years ago

Solve For x . Show all steps / work !

Mathematics

1 answer:

Paraphin [41]3 years ago

5 0

Answer:

x = 46

Step-by-step explanation:

sqrt(3x - 17) + 5 = 16

Subtract the numbers

sqrt(3x - 17) = 11

Square both sides

3x - 17 = 121

Solve the linear equation

x = 46

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Answer:

a² = 144

b² = 25

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Step-by-step explanation:

• a² = 12×12

= 144

• b² = 5×5

= 25

• a² + b² = c²

= 144 + 25 = 169

• c = _/169

= 13

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3 years ago

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3 years ago

a boat costs $16600 and decreased in value by 14% per year. How much will the boat be worth after 11 years?

mr_godi [17]

The worth of boat after 11 years is $ 3159.3013

Solution:

Given that,

Boat costs $16600 and decreased in value by 14% per year

To find: Worth of boat after 11 years

The formula for decreasing function is given as:

$y = a(1-r)^t$

Where,

y is the value after "t" years

t is the number of years

a is the initial value

r is decreasing rate in decimal

From given,

a = 16600

t = 11

$r = 14 \% = \frac{14}{100} = 0.14$

Substituting the values we get,

$y = 16600(1-0.14)^{11}\\\\y = 16600(0.86)^{11}\\\\y = 16600 \times 0.1903\\\\y = 3159.3013$

Thus the worth of boat after 11 years is $ 3159.3013

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3 years ago