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lana [24]
3 years ago
5

Peter answered 15 questions on a quiz and obtained 29 points. If 3 points were given for each correct answer and one point deduc

ted for each wrong answer, how many questions did Peter answer correctly?
Mathematics
1 answer:
nalin [4]3 years ago
8 0

Answer: peter got 11 right and 4 wrong

Step-by-step explanation: So when he answers 11 answers correctly he gains 33 points so he loses 4 points from the remaining 4 wrong answers.

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What is statistical power and how would you calculate it?
Natasha_Volkova [10]

Answer:

The statistical power of a hypothesis test is the probability of detecting an effect, if there is a true effect present to detect. Power can be calculated and reported for a completed experiment to comment on the confidence one might have in the conclusions drawn from the results of the study.

I hope it's helpful!

3 0
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Divide £720 in the ratio 5:1
Sergio [31]

Answer:

like 140

Step-by-step explanation:

yeah

4 0
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Find an equation of the plane with x-intercept a, y-intercept b, and z-intercept c. What is the distance between the origin and
Elenna [48]

Answer:

The equation is:

(1/a)x + (1/b)y + (1/c)z = 1

Step-by-step explanation:

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The direction vector between (0, 0, c) and (0, b, 0) is given as:

<0 - 0, b - 0, 0 - c>

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To obtain the direction vector that is normal to the surface of the plane, we take the cross product of (1) and (2).

Doing this, we have:

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To find the scalar equation of the plane we can use any of the points that we know. Using (0, b, 0), we have:

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Dividing both sides by abc, we have:

(1/a)x + (1/b)y + (1/c)z = 1

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X=-2
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