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3 years ago

you run 10 miles in 1 hour and 15 mintues keeping the same pance how long would it take to run 15miles

Mathematics

2 answers:

lakkis [162]3 years ago

7 0

Answer:

it would take you 1 hour and 30 mins

Step-by-step explanation:

it would be that because 1 hour is 60 mins and it takes you 60 mins to run 1 mile add half a mil and then it would be 1 hr 30

Montano1993 [528]3 years ago

4 0

Answer:

1 hour and 30 minutes

Step-by-step explanation:

because it took an hour for 10 mile so add another five miles and it would take 30 minutes

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Find dy/dx............

PolarNik [594]

Answer:

dy/dx = (1 / x^3 + x) × (3x² + 1) × (1/2)

Step-by-step explanation:

y = log[ x² × √(x² + 1) ]

y = log[ √(x(x² + 1)) ]

y = log[ √(x^3 + x) ]

Now, let a = √(x^3 + x)

Then y = log(a)

Find dy/da.

y = log(a)

dy/da = (1 / a)

dy/da = (1 / √(x^3 + x))

Find da/dx using chain rule.

a = √(x^3 + x)

Let b = x^3 + x, then a = √b

da/dx = (db / dx) × (da / db)

da/dx = (3x² + 1) × (1/2)× (b)^(-1/2)

da/dx = (3x² + 1) × (1/2)× (x^3 + x)^(-1/2)

Finally, find dy/dx using chain rule.

dy/dx = (dy/da) × (da/dx)

dy/dx = (1 / √(x^3 + x)) × (3x² + 1) × (1/2)×

(x^3 + x)^(-1/2)

dy/dx = (1 / (x^3 + x)) × (3x² + 1) × (1/2)

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3 years ago

How do you turn 1+1+1 into standard form?

andriy [413]

I believe its already in standard form so you would just add it

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4 years ago

A business owner pays $1,200 per month in rent and a total of $120 per hour in employee salary for each hour the store is open.

trapecia [35]

The breakeven point is that in which the total cost is just equal to the total revenue. In other words, the profit becomes zero. The revenue and cost will be given below.

(1) Total revenue = ($200)x

(2) Total cost = ($120)(x) + 1200

Equating,
200x = 120x + 1200

Solving for x gives us an answer of 3.33

Hence, the answer is 3.33.

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4 years ago

Which value for S makes the equation true?

Eduardwww [97]

S= 15. hope this helps!!

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3 years ago

A tobacco company claims that the amount of nicotene in its cigarettes is a random variable with mean 2.2 and standard deviation

Aleksandr-060686 [28]

Answer:

0% probability that the sample mean would have been as high or higher than 3.1 if the company’s claims were true.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central limit theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , a large sample size can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$