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pav-90 [236]
3 years ago
5

How do you subtract an integer from another integer without using a numberline or counters

Mathematics
1 answer:
Ad libitum [116K]3 years ago
4 0
Ishxbshwfbshednsnshxbshdhhshhs
You might be interested in
Suppose that we will randomly select a sample of 106 measurements from a population having a mean equal to 19 and a standard dev
svet-max [94.6K]

Answer:

z =\frac{18.45-19}{\frac{7}{\sqrt{106}}}= -0.809

And if we use the normal standard distribution or excel we got:

P(z

Step-by-step explanation:

For this case we have the following info given:

\mu = 19 represent the mean

\sigma = 7 represent the standard deviation

n = 106 represent the sample size

The distribution for the sample size if we use the central limit theorem (n>30) is given by:

\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})

And for this case we want to find the following probability:

P(\bar X< 18.45)

And for this case we can use the z score formula given by:

z =\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}

And replacing we got:

z =\frac{18.45-19}{\frac{7}{\sqrt{106}}}= -0.809

And if we use the normal standard distribution or excel we got:

P(z

4 0
3 years ago
Pls help and show workings <br> (If you don’t know the answer please don’t respond)
raketka [301]

Answer:

the required postulate which should be used here to make the triangles congruent is

C. ASA , okay

Step-by-step explanation:

because, one side and one angle of both triangles are equal and one of angles of the both triangles are vertically opposite angles , hence they are also equal , so we get an angle, a side and one another angle equal to corresponding side and angles of other triangles , so required postulate is C. ASA

I hope it helped

8 0
3 years ago
Read 2 more answers
Need help finding the measurement for x
Nataliya [291]

Answer:

x=34

Step-by-step explanation:

x+(x+12)+(100) = 180

2x+112=180

x=68

x=34

6 0
2 years ago
To test the effectiveness of a new cold vaccine, a random sample of 50 people was selected. They were divided in two groups: one
Georgia [21]

Step-by-step explanation:

Roll no irjdhrjejdjdjdndndnndbdnd dbdnsndnd

dnsnsnsjsnnzjznzjs

3 0
3 years ago
The average temperature in the North Pole in the summer is 32 degrees F. The average temperature in the North Pole in the winter
wlad13 [49]

Answer:

he counted from 32 to 40 , and not to -40

Step-by-step explanation:

the difference is 72 degrees

7 0
3 years ago
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