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bezimeni [28]
3 years ago
14

There is a 100 question exam, each right question answered is +1 point, each wrong question answered is -05 point. A student got

8.05 in the exam, how many wrong and right questions did the student do?
Mathematics
2 answers:
zhenek [66]3 years ago
8 0

Answer:

bbbbbbbbbbbbbbbbbbbbb

Step-by-step explanation:

earnstyle [38]3 years ago
6 0
Two feet is sixteen inches so ghetto is twenty for inches so the answer is teo
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Find the area. simply your answer <br><br> 2x<br> 3x
Firdavs [7]
The area of a triangle is always:

A=bh/2  (base times the height divided by 2)

A=3x(2x)/2

A=6x^2/2

A=3x^2

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7 0
3 years ago
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Write an equation of the circle with center (-6, 2) and diameter 10.
marshall27 [118]

Solution:

We know that the formula to write the equation of a circle is (x – h)² + (y – k)² = r², where h is the x coordinate, k is the y-coordinate, r is the radius of circle, and the center of circle is (-6,2).

<u>Finding the radius of the circle.</u>

  • Diameter: 10 units
  • Radius: 10/2 units = 5 units

<u>Creating the equation:</u>

  • (x – h)² + (y – k)² = r²
  • => (x + 6)² + (y – 2)² = 5²

The equation is (x + 6)² + (y – 2)² = 5².

Learn more: brainly.com/question/26573763

6 0
2 years ago
Factor 3/4 out of 3/4z+6.
Bingel [31]

Answer:

Step-by-step explanation:

5 0
3 years ago
Fast-food restaurants spend quite a bit of time studying the amount of time cars spend in their drive-throughs. Certainly, the f
melisa1 [442]

Answer:

For the 99th percentile, we have X = 206 seconds.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 138.5, \sigma = 29

99th percentile:

Value of X when Z has a pvalue of 0.99. So we use Z = 2.325

Z = \frac{X - \mu}{\sigma}

2.325 = \frac{X - 138.5}{29}

X - 138.5 = 29*2.325

X = 205.92 = 206

For the 99th percentile, we have X = 206 seconds.

4 0
2 years ago
In a random sample of 400 customers at a fast food restaurant, it was determined that 124 customers ordered a salad. If the rest
charle [14.2K]
The answer is 2/3 because the cat and the mouse had a child name catouse and then he built a space ship but yea the answer is really 2/3
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3 years ago
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