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lozanna [386]
3 years ago
13

If you got 1 wrong on a test that had 5 questions, how did you do? I got a D

Mathematics
2 answers:
lianna [129]3 years ago
8 0
So 4/5 should be an 80 because if you multiply 5x20 and 4x20 you would get 80/100 but sometimes teachers make certain questions worth more points than others so maybe that is what happened but maybe talk to your teacher about it
laila [671]3 years ago
7 0

Answer:

80% (B)

Step-by-step explanation:

  1. Divide the max grade (100) by 5 questions, which is 20.
  2. If you got 4 correct (1 wrong), you need to multiply 20 by 4, which is 80%. 80-89's are Bs (well at least where I live)
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iogann1982 [59]
Hey There!

The answer to you're question is C, because squared means to the power of two. So, 39 * 39 is 1,521.

Have A Brainly Day!
5 0
2 years ago
What is the area of a sector of a circle with a radius of 8 inches and formed by a central angle that measures 60°?
Sergeu [11.5K]
\bf \textit{area of a sector of a circle}\\\\
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3 years ago
A test consists of 10 true/false questions. To pass the test a student must answer at least 88 questions correctly. If a student
Zanzabum

Answer:

The probability that the student is going to pass the test is 0.0545

Step-by-step explanation:

The variable that says the number of correct questions follows a Binomial distribution, because there are n identical and independent events with a probability p of success and a probability 1-p of fail. So, the probability of get x questions correct is:

P(x)=\frac{n!}{x!(n-x)!} *p^{x} *(1-p)^{n-x}

Where n is equal to 10 questions and p is the probability of get a correct answers, so p is equal to 1/2

Then, if the student pass the test with at least 8 questions correct, the probability P of that is:

P = P(8) + P(9) + P(10)

P=(\frac{10!}{8!(10-8)!}*0.5^{8}*(0.5)^{10-8})+(\frac{10!}{9!(10-9)!} *0.5^{9} *(0.5)^{10-9})+(\frac{10!}{10!(10-10)!} *0.5^{10} *(0.5)^{10-10})

P = 0.0439 + 0.0097 + 0.0009

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8 0
3 years ago
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8 0
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Vaselesa [24]

Answer:

The mean of these statistic is 2.18.

Step-by-step explanation:

According to the chart, from 1986-1996, unintentional drug overdose deaths per 100,000 population began to rise.

The given data set is

2, 1, 2, 2, 1, 2, 2, 3, 3, 3, 3

Formula for mean:

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Using this formula, the mean of the data is

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Mean\approx 2.18

Therefore the mean of these statistic is 2.18.

3 0
3 years ago
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