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Butoxors [25]
3 years ago
6

What am I doing wrong

Mathematics
1 answer:
nalin [4]3 years ago
5 0

Answer:

(4x/3)-3 <=y

Step-by-step explanation:

You should Plot the graph in this manner

You might be interested in
Scores on a certain intelligence test for children between ages 13 and 15 years are approximately normally distributed with μ=10
Tanya [424]

Answer:

a) 0.7734

Step-by-step explanation:

Problems of normal distributions 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 question, we have that:

\mu = 101, \sigma = 24

(a) what proportion of children aged 13 to 15 years old have scores on this test above 83 ?

This is 1 subtracted by the pvalue of Z when X = 83. So

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

Z = \frac{83 - 101}{24}

Z = -0.75

Z = -0.75 has a pvalue of 0.2266

1 - 0.2266 = 0.7734

The answer is 0.7734

5 0
3 years ago
14. The sum of two integers is – 1.d
Alexxandr [17]

Answer:

a)The integers could be : -3 and 2

                                      -4 and 3

                                      -5 and 4

                                      -9 and 10

                                      --------------

   b) the integers could be any pair -(x+1) and x  with x a natural number

Step-by-step explanation:

3 0
3 years ago
Calculate the total surface area of the triangular pyramid.
AleksandrR [38]

Answer:

45

Step-by-step explanation:

15+10= 25 + 20 = 45

3 0
3 years ago
45/84 is it in simplest form
balandron [24]
The simplest form is 15/28
Correct me if I'm wrong. Hope this helps!
3 0
3 years ago
Plot a point at the y-intercept of the following function on the provided graph.<br> 3y = -5* + 7
Lorico [155]
The answer is y= 2/3 or y= -35/3
Hope this helps!
4 0
3 years ago
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