If the draw a line perpendicular with y-axis thru the diagonal line check but it meets only one curved point, therefore the curve indicates a function not otherwise. They draw a vertical line perpendicular to the y-axis there, it just intersects one more chart point, which is why a graph is a feature:

In point a:

$\to Domain= [-\pi ,\pi ]\\\\\to Range = [-1,1]$

In point b:

Its y-axis length cut also by understanding the benefits of y-interception and the x-axis length gives the x-intercept.

$\to y-intercept = 1\\\\\to x-intercept = \frac{\pi}{2} ,- \frac{\pi}{2} \\\\$

In point C:

Every graph is y-axis symmetric because the left side of the column as well as the middle side of the graph is about the same.

3 0

3 years ago

In the vertical columns of the periodic table, as the atomic numbers increase: The numbers of electron shells increase. The ioni

Kisachek [45]

The rule is number your table 1 2. 3 4 5 6 7 0 the number of shells increase as you go further up as it indicates the number of electrons on the outer shell e.g Argon will have 3 electrons on its outer shell hope this helps if not its then tighttt

4 0

4 years ago

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What masses of KCl and H2O are needed to make 250 g of 5.00 % solution?

oksano4ka [1.4K]

Answer:

w/w means weight/weight

Therefore, in a 250 g of solution, 5% needs to be KCl,

i.e. 5% x 250 = 12.5 g of KCl is needed.

7 0

3 years ago