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2 years ago

Statistics honors - Independent events means disjoint events. True or False?

1 answer:

8 0

Answer:

False

Explanation:

Because to events are disjoint if they have no outcomes in common. In other words the events are disjoined if knowing that one of the events occurs we know the other event not occur.

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What is the value for x in this equation?<br> 42x – 3 = 7.27

Flauer [41]

x = 0.2445238 is the only answer I found.

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3 years ago

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The temperature of a chemical compound, in degrees Celsius, changes when the compound is exposed to UV light. The table below sh

SIZIF [17.4K]

So, we are given the y intercept, and since we know c is the same as the y value of the y intercept, we know that c=15.

From there we can pick any two of the points given to us to find our a and b.

Let's use (4,17) and (8,23) becase they are whole numbers.

$17=16a+4b+15\\ 23=64a+8b+15 \implies \\ 2=16a+4b\\ 8=64a+8b \implies\\ 8=64+16b \\ 8=64+8b \implies \\ 0=8b \implies\\ b=0$

So, with b=0, we can plug it back into the first equation to get: $17=16a+4b+15 \implies\\ 2=16a \implies\\ a=\frac{1}{8}$

So our quadratic is $\frac{1}{8}x^2+15$

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3 years ago

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Factorise 12x cubed - 9x squared

TiliK225 [7]

Answer:

3x²(4x-3)

Step by step explanation:

Factorise 12x³-9x²

first, find the HCF of the terms.

the HCF is 3x²

Then you can use the HCF to multiply all terms, each divided by the HCF.

3x²(12x³/3x²-9x²/3x²)

Dividing, we'll have

3x²(4x-3)

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2 years ago

Write the rate in simplest form 168/8

Dafna1 [17]

168 / 8 = 21. It is in simplest form at 21.

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3 years ago

Dr. peterson works 178 hours each month.how many hours dose she work each year?

SSSSS [86.1K]

Answer:

2,136

Step-by-step explanation:

Okay so, Dr. Peterson works 178 hours per month

You multiply 178 times 12 (the months in a year)

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3 years ago