Answer:
No idea, maybe multiply everything and divide by 7?
Step-by-step explanation:
Answer:
Step-by-step explanation:
If the triangles are similar, then the sides are in proportion.
We have the equation:
<em>cross multiply</em>
<em>divide both sides by 3</em>
<em>subtract 8 from both sides</em>
<em>divide both sides by 3</em>
Answer:
43 cm^2
Step-by-step explanation:
tan 72/2 = 0.7265
0.7265 = 0.5(5)/h
h = 3.44
3.44 x 5 x 0.5 = 8.6
8.6 x 5 = 43 cm^2
Answer: the length is 24m
The width is 6 m
Step-by-step explanation:
The formula for determining the perimeter of a rectangle is expressed as
Perimeter = 2(L + W)
The perimeter of the given rectangle is 60 meters. This means that
2(L + W) = 60
Dividing through by 2, it becomes
L + W = 60 /2
L + W = 30 - - - - - - - - - - - - - -1
The rectangular room is 4 times as long as it is wide. This means that
L = 4W
Substituting L = 4W into equation 1, it becomes
4W + W = 30
5W = 30
W = 30/5
W = 6
L = 4 × 6
L = 24
D=an-am/n-m
d=a64-a3/64-3
d=3725-126/61=59
a3=a1+2d
126=a1+118
a1=8
