3 years ago

Please help me it’s due tomorrow morning :(!!

Mathematics

1 answer:

andreev551 [17]3 years ago

5 0

Answer:

Using a variable to represent a pattern is helpful because you do not need to constantly rewrite the pattern.

Step-by-step explanation:

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The ratio of police detectives and private detectives on the island is 6 to 5. If a total of 550 detectives of both kinds live o

vekshin1

Answer:

300

Step-by-step explanation:

The total number of ratio units in 6:5 is 6+5=11, so each of those ratio units must stand for 550/11 = 50 detectives. Then the 6 ratio units of police detectives stand for 6·50 = 300 police detectives.

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3 years ago

The lifetime of a machine part has a continuous distribution on the interval (0, 50) with probability density function f, whe

Strike441 [17]

Answer:

Probability that the lifetime of the machine part is less than 13 = 0.6782

Step-by-step explanation:

given that $f(x)=(10+x)^{-2}$

Normalizing the function we get

$\int_{0 }^{50}cf(x)dx=1$

$\int_{0 }^{50}c(10+x)^{-2}dx=1$

$\therefore a=\frac{1}{\int_{0 }^{50}(10+x)^{-2}dx}$

$\therefore a=12$

$P(x< 13)=\int_{0}^{13}12(10+x)^{-2}dx\\\\P(X< 13)=0.6782$

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3 years ago

2. Simplify (27) 2/3 x (125) 1/3

baherus [9]

Hopes this helps:

Answer: 750

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2 years ago

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a cube has a surface area of 150 sqaure inches. what is the surface area of a similar cube that is larger by a scale factor of 2

jeka94

The answer should be 75

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3 years ago

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If sequence s has 240 terms, what is the 239th term of s ? (1) each term of s after the first term is 4 less than the preceding

malfutka [58]

$x_{n}$ = a₁ + d(n - 1) ; where "a₁" is the first term and "d" is the difference

a₂₄₀ = a₁ + d(240 - 1)

a₂₄₀ = a₁ + 239d

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3 years ago