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netineya [11]
3 years ago
10

Can you help me I forgot

Mathematics
2 answers:
Rzqust [24]3 years ago
4 0
Harrison walked a total of 14 km because the first rectangle has a perimeter of 6 km and the second has a perimeter of 8 km. Harrison’s brother walked a total of 12 km since that was the perimeter of the 5*1. 14-12 is 2 so there is a 2 km difference.
gregori [183]3 years ago
4 0
He walked 14 km and there was a 2 km difference
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Alice works at a health care facility. She has measured the hemoglobin levels of 200 people. The data follows a normal distribut
rewona [7]
Since the data follows a normal distribution, the 68-95-97 rule can be used to describe the number of people falling under N standard deviations from the mean. Since the standard deviation is 1, hemoglobin levels of 13 -15 g/dL contains 68% of the sample, or 136 people. This means the 32 people have less than 13 g/dL and 32 people have more than 15 g/dL.
5 0
3 years ago
The graph shows g(x), which is a translation of f(x) = x². Write the function rule for g(x).
mixas84 [53]

Answer:

g(x) = (x + 8)^{2}

Step-by-step explanation:

7 0
3 years ago
X^2-3x-28=0 what are the roots
Oksi-84 [34.3K]

Answer:

\large\boxed{x=-4\ \vee\ x=7}

Step-by-step explanation:

x^2-3x-28=0\\\\x^2+4x-7x-28=0\\\\x(x+4)-7(x+4)=0\\\\(x+4)(x-7)=0\iff x+4=0\ \vee\ x-7=0\\\\x+4=0\qquad\text{subtract 4 from both sides}\\x=-4\\\\x-7=0\qquad\text{add 7 to both sides}\\x=7

8 0
3 years ago
Kate reads books that were 240, 450, 240, 160, 165, 170, 180 pages long. What are the mean median and mode and which one describ
ser-zykov [4K]
Order set...{160,165,170,240,240,450}

The "mean" is the arithmetic average of the elements...

mean=(160+165+170+240+240+450)/6=237.5

The "median" if the set has an odd number of terms is the middle term, if the set has an even number of terms, it is the average of the middle two terms.

In this case the number of elements is even and the middle two terms are 170 and 240 so:

median=(170+240)/2=205

The "mode" is the term which appears the most in the set, so in this case:

mode=240
8 0
3 years ago
ANYONE GOOD AT HISTORY!?
marishachu [46]

Answer:

BRAINLIEST PLSSS

Step-by-step explanation:

im good

3 0
3 years ago
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