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3 years ago

Which expression correctly represents "nine less than the quotient of a number and four, increased by three?

Mathematics

2 answers:

Naddik [55]3 years ago

5 0

Answer: i don't know what the number is but i'll just put a random number

9∠1x4+3

Step-by-step explanation: i'm sorry if i'm wrong i tried my best

iVinArrow [24]3 years ago

4 0

Answer:

Step-by-step explanation:

((n / 4) - 9) + 3

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what is the quistion

Step-by-step explanation:

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3 years ago

A college professor never finishes his lecture before the end of the hour and always finishes his lectures within 2 min after th

Citrus2011 [14]

Answer:

Value of k is $\displaystyle\frac{3}{8}$

Step-by-step explanation:

We are given the following information in the question:

$f(x) = kx^2, 0\leq x \leq 2\\~~~~~~~= 0, \text{ otherwise}$

where x is the time elapses between the end of the hour and the end of the lecture.

We have to find the values of k.

Since, f(x) is the pdf, then,

$\displaystyle\int^\infty_{-\infty} f(x) = 1\\\\\displaystyle\int^2_{0} f(x) = 1\\\\\displaystyle\int^2_{0} kx^2 = 1\\\\k\bigg[\frac{x^3}{3}\bigg]^2_0 = 1\\\\k\times \frac{8}{3} = 1\\\\k = \frac{3}{8}$

Hence, value of k is $\displaystyle\frac{3}{8}$

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2 years ago

Seven less than eight times a number is -12

aliina [53]

Answer:

19/8

Step-by-step explanation:

8x-7=-12

8x=19

x=19/8

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3 years ago

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The Formula is Y= Mx +B

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