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3 years ago

2 fair dice are rolled. What is the probability that the sum is even given that the first die rolled is a 5?

1 answer:

4 0

The answer would be 50% because if the second die landed on three of the numbers (1, 3 or 5) the sum would be even (6, 8 or 10) but if it landed on the other three numbers (2, 4 and 6) the sum would be odd (7, 9 or 11)

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The population of a town is 2500 and is decreasing at a rate of 3.5% per year. Write a exponential decay function to find the po

liq [111]

P=2,500×(1−0.035)^(5)=2,092.07

5 0

3 years ago

PLEASE HEP ME QUICK!!!!: Tom travels between the two mile markers shown and then finds his average speed in miles per hour. Sele

slega [8]

Answer:

$speed=\frac{195\ miles}{3\ hours}$

$3\ hours=\frac{195\ miles}{speed}$

$3\ hours*(speed)=195\ miles$

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

Let

x -----> the distance in miles

y ----> the time in hours

$speed=\frac{x}{y}$

we have

The distance is equal to subtract 35 miles from 230 miles

$x=230-35=195\ miles$

The time is equal to subtract 1:30 pm from 4:30 pm

$y=4:30\ pm-1:30\ pm=3\ hours$

substitute in the formula of speed

$speed=\frac{195\ miles}{3\ hours}$

<em>Isolate 3 hours</em>

$3\ hours=\frac{195\ miles}{speed}$

<em>Isolate 195 miles</em>

$195\ miles=3\ hours*(speed)$

7 0

3 years ago

Consider the following sample data: x 12 18 20 22 25 y 15 20 25 22 27 Click here for the Excel Data File a. Calculate the covari

Alinara [238K]

Answer:

The covariance between the variables is 21.10 and the Correlation coefficient is 0.9285.

Step-by-step explanation:

Hence,

7 0

3 years ago

What is the The range of y = square root X-5 – 1

Step2247 [10]

Answer:

[-1, infinity)

Step-by-step explanation:

I must assume that you meant y = √(x - 5) - 1.

The range of the square root function is [0, infinity.

If 1 is subtracted from the square root function, the range of the resulting function is [-1, infinity).

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3 years ago

If Anne went to the store for 6/8 of a hour and Jill went for 3/5 of an hour, who was at the mall longer?

Bas_tet [7]

I believe jill, please tell me if im wrong

5 0

3 years ago