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4 years ago

9

The Positions of two divers from the water's surface after a dive are shown: Ray: -15 feet Henry: - 20 feet Which inequality exp

lains why Henry is deeper in the water than Ray.

1 answer:

Effectus [21]4 years ago

7 0

Step-by-step explanation:

Henry is deeper in the water than Ray because -20 < -15

Hope it helps <3

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Setler [38]

It’s a because when you flip it will be A

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3 years ago

At the start of a hike a hiker was at an elevation of -50 feet or zero represents sea level the hiker climbs at a rate of 15 fee

JulijaS [17]

-50 + 15T > 5

See the image for a breakdown of what these terms mean/how they’re measured!

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2 years ago

PREVIOUS ANSWERS MY NOTES Calls to a customer service center last on average 2.8 minutes with a standard deviation of 1.4 minute

rjkz [21]

Answer:

The expected total amount of time in minutes the operator will spend on the calls each day is of 210 minutes.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

n-values of a normal variable:

For the sum of a sample of n values, the mean is of $M = n\mu$ and the standard deviation is of $s = \sigma\sqrt{n}$

Average 2.8 minutes

This means that $\mu = 2.8$

75 calls each day.

This means that $n = 75$

What is the expected total amount of time in minutes the operator will spend on the calls each day?

$M = n\mu = 75(2.8) = 210$

The expected total amount of time in minutes the operator will spend on the calls each day is of 210 minutes.

8 0

3 years ago

Subtract the following.Write your answer in standard notation. 15 - 1.3 * 10^-3

ycow [4]

Answer:

The Final Answer would be 14.9987.

Step-by-step explanation:

Given:

$15-1.3\times 10^-3$

We need to Subtract the above number.

Since the larger number is standard Notation form and smaller number is in Scientific notation form

So first we will convert the Scientific notation Number in standard Notation form we get;

$1.3\times 10^-3 = 0.0013$

Now Subtracting the smaller Number from larger number we get;

$15-0.0013 = 14.9987$

Hence The Final Answer would be 14.9987.

5 0

3 years ago

The equation 3x2 = 6x - 9 has two real solutions<br> True<br> False

dedylja [7]

Answer: FALSE

Step-by-step explanation:

The first step is to rewrite the equation in the form $ax^2+bx+c=0$ , then:

$3x^2 = 6x - 9\\3x^2-6x +9=0$

Now, we need to calculate the Discriminant with this formula:

$D=b^2-4ac$

We can identify in the given equation that:

$a=3\\b=-6\\c=9$

Then, we only need to substitute these values into the formula:

$D=(-6)^2-4(3)(9)$

$D=-72$

Since $D$ then the equation has no real solutions.

5 0

3 years ago