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Stels [109]
3 years ago
10

7th grade math help me please

Mathematics
1 answer:
AlexFokin [52]3 years ago
7 0

Answer:

the 2nd answer (II)

Step-by-step explanation:

1 and 2 are not rational if that's what your asking

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What must be true regarding the distribution of the​ population? A. The population must be normally distributed and the sample s
Karolina [17]

Answer:

C. The population must be normally distributed.

Step-by-step explanation:

Population distribution have to do with the classification of people living in a particular geographical area into different segment such as Age, Occupation, Sex, Geographical location.

For instance

If Age distribution is use, the total number of people living in say New york will classified into 0-10 11-19years 20-29years and so on

Sex distribution involves distribution into the male and Female Category

Occupation distribution of Population involves classification of occupant of an area according to their Job.. I.e.Drives-15 people, Lawyer =2 people and so on.

Geographical location distribution of population involves the classification of people living in a particular country according to their geographical names. I.e. Abuja=3.5million people etc.

5 0
3 years ago
Which expression is equivalent to b^-3/ab^-3?
Mrrafil [7]
1/a

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7 0
3 years ago
Consider the problem of finding the line of symmetry and vertex of the quadratic equation f(x) =x^2-8x+15 What is the error in t
Elenna [48]
\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{llccll} f(x) = &{{ 1}}x^2&{{ -8}}x&{{ +15}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)
\\\\\\
\textit{so the line of symmetry will be at }x=-\cfrac{{{ b}}}{2{{ a}}}
3 0
4 years ago
Read 2 more answers
Find the volume of this sphere please <br><br> As soon as possible.
seropon [69]
<h3>Answer:   30</h3>

==========================================================

Explanation:

"Use 3 for pi" is something I've never seen a teacher do before. Usually it's "use 3.14 for pi".

Anyway, the diameter of this cylinder is 2 inches, which cuts in half to 1 inch. This is the radius.

The height is 10 inches.

So we have r = 1 and h = 10

V = pi*r^2*h

V = 3*1^2*10

V = 30 cubic inches approximately

3 0
3 years ago
Read 2 more answers
Find the area please
STatiana [176]
 The correct should 356 yards^2 
to solve this you simply add the are of the two squares after you calculate the area for each of them.
8 0
3 years ago
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