Kite:
10.2 x 8 = 81.6/2 = 40.8 ft^2
pentagon:
area = 1/2 x apothem x perimeter
perimeter = length of side x number of sides
pentagon has 5 sides, perimeter = 5 *20 = 100
area = 1/2 x 14 x 100 = 700 in^2
x = 10 divided by cos(75) = 38.637
rounded to 38.6
last one is the answer
Answer:
L = w + 8
P = 2L + 2w
256 = 2 (ancho + 8) + 2w
256 = 2 vías + 16 + 2 vías
256 = 4 semanas + 16
240 = 4w
w = 60
La longitud es 60 + 8 = 68
el ancho es 60
Answer:
- r1 +4×r3 ⇒ r1
- r2 -3×r3 ⇒ r2
Step-by-step explanation:
We note that the coefficient of y in equation (iii) is 1, so it is convenient to use that equation to eliminate y from the others.
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<em>To eliminate the y-variable from equation (i), four times equation (iii) can be added to equation (i).</em>
<em>To eliminate the y-variable from equation (ii), three times equation (iii) can be subtracted from equation (i).</em>
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The result of these operations would be ...
Answer:
x = t
y = -t
z = (17-6t)/5
Step-by-step explanation:
First we will write down Equation 1 and Equation 2
4x-2y+5z = 17------(1)
x + y = 0--------(2)
Since we are asked to express our answer in terms of the parameter t so lets suppose x = t and y = -t
Now substitute the value of x and y in equation (1) we get
4(t) -2(-t) +5z = 17
6t + 5z = 17
5z = 17 -6t
z = (17-6t)/5
hence we get the following answer
x = t
y = -t
z= (17-6t)/5
we can also verify our answer by substituting the values of x ,y and z in any of the two equations above, for example lets substitute these values in equation 1
4(t) -2(-t) + 5((17-6t)/5)) = 17
6t + 17 -6t = 17
6t -6t = 17 -17
0 = 0
