The simple reason why it is very important for a given measurement always be reported to the correct number of significant figures is because solved answers usually, frequently and most of the time depend on the number of significant figures in the values used during the calculation

<h3>Significant figures</h3>

There are accurate figures which is used in solving mathematical problems

So therefore, the simple reason why it is very important for a given measurement always be reported to the correct number of significant figures is because solved answers usually, frequently and most of the time depend on the number of significant figures in the values used during the calculation

Learn more about significant figures:

brainly.com/question/24491627

#SPJ4

5 0

2 years ago

A parabola can be represented by the equation x2 = 2y. What are the coordinates of the focus and the equation of the directrix?

Airida [17]

Answer:

i) Focus ( 0,a) = $(0,\frac{1}{2} )$

ii) The equation of the directrix is

$y = -\frac{1}{2} or y +\frac{1}{2} =0$

Step-by-step explanation:

Step(i):-

A parabola is the set of all points in a plane that are equidistant from a fixed line and a fixed point (not in a line) in the plane

• The Fixed line is called the directrix of the parabola.

• The Fixed point is called the focus of the parabola.

• A line through the focus and perpendicular to the directrix is called the axis of the parabola.

• The point of intersection of parabola with the axis is called the vertex of the parabola.

Given Parabola x² = 2 y

Comparing x² = 4 a y

4 a = 2

$a = \frac{1}{2}$

Focus ( 0,a) = $(0,\frac{1}{2} )$

Step(ii)

The equation of the directrix is y = -a or y +a=0

The equation of the directrix is

$y = -\frac{1}{2} or y +\frac{1}{2} =0$

The equation of the directrix is 2 y +1 =0

6 0

3 years ago

A landscaping company sells bushes for $24 each and trees for $36 each. If you spent $648 on materials, complete the statements

Fynjy0 [20]

#of bushes, x #of trees, y

18 6
12 10
6 14
Explanation:
Do you mind if you make the explanation? Try to find out for urself atleast u do something. Its kinda easy tbh.

4 0

3 years ago