A parabola with an equation, y2 = 4ax has its vertex at the origin and opens to the right.
It's not just the '4' that is important, it's '4a' that matters.
This type of parabola has a directrix at x = -a, and a focus at (a, 0). By writing the equation as it is, the position of the directrix and focus are readily identifiable.
For example, y2 = 2.4x doesn't say a great deal. Re-writing the equation of the parabola as y2 = 4*(0.6)x tells us immediately that the directrix is at x = -0.6 and the focus is at (0.6, 0)
Answer:
xisans
Step-by-step explanation:
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<h2>
Answer:</h2><h2>The answer for the expression is 31</h2>
Step-by-step explanation:
The given expression is -4 + 5 + x + 4 = 36
To find the value of x, solve the given expression
Add the terms in the left hand side and compare with the right hand side to solve for "x"
-4 + 5 + x + 4 = 36
1 + x + 4 = 36
5 + x = 36
x = 36 - 5
x = 31
Answer:
See the image below.
Step-by-step explanation:
The decimals 0.43 and 0.39 are equivalent to 43/100 and 39/100. These decimals lie between 0 and 1.
Draw a number line, mark off and label the multiples of 0.10(e.g 0.10, 0.20) in the interval 0-1.
Mark 0.43 between 0.4 and 0.5, a little closer to 0.4.
Mark 0.39 between 0.3 and 0.4, just behind 0.4.
Since 0.39 is smaller than 0.43( 0.39 lies on the left to 0.43), the inequality is:
0.39<0.43
Answer:
P = tsrt is the corrected answer
