Graph A is a function. A function is defined as a graph that has one x for every y value. To verify this, you can use the vertical line test. When a vertical line is held to any portion of the graph, it should intersect the graph only once. This is only true for a parabola, proving it is the function.
you must multiply with the following equation to obtein the numbers of stamp
( 2*20)+(4*10)= 40+40= 80 , it means that Carmen has 80 stamp
The length of the shorter rope is 20 cm.
<h3>How to find the original length of the rope using ratio?</h3>
He cut a rope into two pieces with lengths having a ratio of 5 to 2.
The shorter piece is 70 cm long.
The length of the original rope can be calculated as follows:
The ratio of the length of the rope is as follows;
5 : 2
let
x = length of the original rope
Therefore,
length of shorter piece = 2 / 7 × 70
length of shorter piece = 2 / 7 × 70
length of shorter piece = 140 / 7
length of shorter piece = 20 cm
Therefore, the length of the shorter rope is 20 cm.
learn more on ratio here: brainly.com/question/15418103
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To
determine the z in this proportional equation. We used first understand the
formula and equation by understanding the relationships between z, x and y then
we apply the values or numbers and undergo the process of finding the asked
unknown value.
<span><span>1.
</span>Since z is directly proportional to x and
inversely proportional with Y. we have the equation set as: Z = X / Y</span>
<span><span>2.
</span>Hence if the given values of X = 12, and Y = 23. Then apply the
values in the formula we have:</span>
<span><span>a.
</span>Z
= X / Y</span>
<span><span>b.
</span>Z
= 12 / 23</span>
<span><span>c.
</span>Z
= 0.522</span>
When 48 is factored, it factors to 4²×3. When you take the square root of that, you get 4√3.
