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Minchanka [31]
3 years ago
13

Can somebody plz answer all of them correct! (Only if u done this before)

Mathematics
1 answer:
swat323 years ago
7 0

Answer:

23) 53/100

24)2/5

25)3/5

26)11/50

27)17/50

28)19/1000

29)4/5

30)1/250

31)9/25

32)1 3/10

33)11 1/2

34) 7 3/40

Step-by-step explanation: Hope this helps!

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What are the x-intercepts of the quadratic function? <br> f(x) = x2-3x-10
zzz [600]
-2 and 5 (just put in a graphing calculator and find the zeros)
3 0
3 years ago
How to solve this help pls
Valentin [98]

Answer:

2x^{2} +\frac{7}{x}

Step-by-step explanation:

divide each by x

7 0
3 years ago
Isaac played a video game 20 times and wont about 70% of the games. how many games did he win
skelet666 [1.2K]
Hello!

We know that Isaac played 20 games and won about 70% of them. Now, we must find what 70% of 20 is, so that we know how many games Isaac won.

First, convert the percentage to a decimal by dividing it by 100.

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4 0
3 years ago
Read 2 more answers
What is the median and mode
viktelen [127]
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60, 60, 65, 70, 70, 85, 90

70 is your median

mode is the number(s) that show up the most
60 and 70 is your mode, since they show up twice (one more than the others)

Range is largest number minus the smallest
90 - 60 = 30, 30 is your range

Mean is all the numbers added together divided by the number of numbers there are 
60 + 90 + 65 + 70 + 70 + 85 + 60 = 500
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Mean = 71.42

hope this helps
5 0
3 years ago
Confidence Interval Application Many people feel that the drying of pavement marking paint is much too slow. You spend several d
djyliett [7]

Answer:

The sample size is  n =33

Step-by-step explanation:

From the question we are told that

  The margin of error is E  =  1.5 seconds

   The standard deviation is  s =  4 seconds

 Given that the confidence level is 97% then the level of significance is mathematically represented as

      \alpha =( 100 -97)\%

=>   \alpha  =  0.03

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

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Generally the sample size is mathematically represented as

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=> n  =[  \frac{2.17  * 4 }{1.5} ]^2

=>  n =33

7 0
3 years ago
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