2 years ago

Condense the expression log 2x + log(x² - 9) - log x +3

Mathematics

1 answer:

Rudik [331]2 years ago

4 0

Here the my solutions,hope you understand

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The annual 2-mile fun-run is a traditional fund-raising event to support local arts and sciences activities. It is known that th

victus00 [196]

Answer: 0.0228

Step-by-step explanation:

Given : The mean and the standard deviation of finish times (in minutes) for this event are respectively as :-

$\mu=30\\\\\sigma=5.5$

If the distribution of finish times is approximately bell-shaped and symmetric, then it must be normally distributed.

Let X be the random variable that represents the finish times for this event.

z score : $z=\dfrac{x-\mu}{\sigma}$

$z=\dfrac{19-30}{5.5}=-2$

Now, the probability of runners who finish in under 19 minutes by using standard normal distribution table :-

$P(X$

Hence, the approximate proportion of runners who finish in under 19 minutes = 0.0228

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2 years ago

Write two fractions that are equivalent to 5

Dima020 [189]

Answer:

5/1, 25/5

Step-by-step explanation:

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3 years ago

Which binomial is a factor of x^2+7x+10

Mashcka [7]

Answer:

Step-by-step explanation:

(x+5)(x+2)=x^2+7x+10

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3 years ago

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“[The city’s engineers excelled in areas] neglected by the Greeks, such as the construction of roads and aqueducts, and of sewer

svetoff [14.1K]

Answer:

the greeks neglected roads

b. roads

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2 years ago

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The perimeter of a parallelogram is 72 meters. The width of the parallelogram is 4 meters less than its length. Find the length

mafiozo [28]

Perimeter of a parallelogram = 2(l + w). But w = l - 4
Therefore, 72 = 2(l + l - 4) = 2(2l - 4) = 4l - 8
4l = 72 + 8 = 80
l = 80/4 = 20
w = 20 - 4 = 16

Therefore, length = 20 meters and width = 16 meters

7 0

2 years ago