- Answer:
- (x,y)=(3/31, 107/62)
Step-by-step explanation:
{2x+8y=14
{216x-4y=14
{x+4y=7
{216x-4y=14
217x=21
x=3/31
2*3/31+8y=14
y=107/62
(x,y)=(3/31, 107/62)
2*3/31+8*107/62=216*3/31-4*107/62=14
14=14=14 since all of the equalities are true the order pair is the solution of the system (x,y)=(3/31, 107/62)
hope this helps :)
<em>WHAT</em><em> </em><em>DO</em><em> </em><em>U</em><em> </em><em>Mea</em><em>n</em><em>?</em><em>?</em><em>?</em>
<em>Dont</em><em> </em><em>waste</em><em> </em><em>your</em><em> </em><em>points</em><em> </em><em>in</em><em> </em><em>such</em><em> </em><em>unnecessar</em><em>y</em><em> </em><em>things</em><em>.</em>
<h2>
<em>hope</em><em> </em><em>u</em><em> </em><em>understand</em><em>.</em><em>.</em><em>.</em></h2>
For this case the first thing you should realize is that you have a rectangle triangle where you have two of the three sides.
Therefore, to solve the problem, you must find the third side using the
Pythagorean theorem.
We have then:
h ^ 2 + 32 ^ 2 = 38 ^ 2
We cleared h:
h = root (38 ^ 2 - 32 ^ 2)
h = 20.49390153
round to the nearest tenth
h = 20.5 m
Answer:
the height of the building is:
h = 20.5 m
The independent variable here is b, the number of mats; the dependent var. is p, the cost of b mats. Thus, p = f(b).
Here, 245 units^3 = pi*r^2*(5 units), or
245 units^3
r^2 = ------------------- = 15.61 units^2. Thus, the radius is sqrt(15.61 units^2), or
5(3.14) units 3.95 units. The DIAMETER is d = 2*r = 7.90 units.