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Mathematics

1 answer:

WITCHER [35]3 years ago

6 0

Answer:

The right answer for the question that is being asked and shown above is that: "d. P(A and B) = x + y." The probability of event A is x, and the probability of event B is y. If the two events are independent, the condition must be true is this d. P(A and B) = x + y

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Step-by-step explanation:

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Need help on this question asap please

yanalaym [24]

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So,

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hence, correct answer is B.

6 0

3 years ago

can someone explain it to me, i don't need the answer, i just need an detailed explanation of how they got the answer using the

zubka84 [21]

Answer:

Step-by-step explanation:

Good idea to review quadratic functions and the quadratic formula.

Quadratics have three coefficients: ax² + bx + c, and the "discriminant" is defined as b²-4ac. Please review these rules:

1) if the discriminant is +, the quadratic equation has two real, unequal roots.

2) if the disc. is 0, the equation has two real, equal root.

3) If the disc. is - , the equation has two complex roots.

Here a = 1, b = -3 and c = 4. Therefore the discriminant is (-3)²-4(1)(4), or

-7. Rule 3) applies: the equation has two complex roots, but no real ones. Thus we know that the graph does not cross the x-axis.

Graphing the given quadratic, x² - 3x + 4, using a dashed "line," is helpful. As you can see in the illustration of this graph, the graph neither touches nor crosses the x-axis. Thus, y = x² - 3x + 4 is greater than 0 for all x. The answer: All real numbers.

4 0

3 years ago

How many cubic meters of material are there in a conical pile of dirt that has radius 9 meters and height 6 meters 6 meters? Us

alisha [4.7K]

To find the volume of a cone, you use the formula $\pi r^{2} \frac{h}{3}$ .
Radius squared would be 36 in our case and 36 times 3.14 is 113.04. 6 thirds is also two, so multiply that by two and you would get 113.04 x 2 = 226.08. So, your answer would be 226.08 cubic meters of dirt.

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3 years ago

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xxMikexx [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

Marvin rides his bike at an average speed of 13 miles per hour how far can he bike in 8 hours?

Radda [10]

13 x 8 = 104

104 miles