Answer:
Number of children=38
Number of men=152
Number of women =72
Step-by-step explanation:
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Let the number of children =x
Number of men =4x
Number of women =2x
There are 266 people all together.
x+4x+2x=266
7x=266
x=38
For this case we have:
a = 30 cm
c = 16 cm
We look for the length of the diagonal:
d = x + y
Where,
For x:
a ^ 2 = x ^ 2 + x ^ 2
x = a / root (2) = 30 / root (2) = 21.2132 cm
For y:
c ^ 2 = y ^ 2 + y ^ 2
y = c / root (2) = 16 / root (2) = 11.3137 cm
The diagonal is:
d = x + y
d = 21.2132 + 11.3137
d = 32.5269 cm
Then, the height is:
h = h1 + h2
For h1:
h1 = root (x ^ 2 - (a / 2) ^ 2) = root ((21.2132) ^ 2 - (30/2) ^ 2)
h1 = 15 cm
For h2:
h2 = root (y ^ 2 - (c / 2) ^ 2) = root ((11.3137) ^ 2 - (16/2) ^ 2)
h2 = 8 cm
Finally:
h = h1 + h2
h = 15 + 8
h = 23 cm
Then, the area is:
A = (1/2) * (a + c) * (h)
A = (1/2) * (30 + 16) * (23)
A = 529 cm ^ 2
Answer:
the area of an isosceles trapezoid is:
A = 529 cm ^ 2
Answer:
I don’t know about the last part but what I do know id the answer to the equation.
Answer: 1 1/3
Step-by-step explanation:
1. Remove the paranthesis
Removing the paranthesis will make it much easier to solve the equation.
We now have 4 1/6 + -2 5/6.
2. Rearrange the equation
We can’t have two symbols next to each other. We need to cross out one symbol so we can have only one. + and - = -. So let’s keep the "-" symbol.
We now have 4 1/6 - 2 5/6.
3. Solve the remaining equation
Now that we have a proper equation which we can solve, let’s do it.
We should then end up with 1 1/3.
Answer: 1 1/3
