Answer:
1, 4, or 7
Step-by-step explanation:
For 425,9__0 to be divisible by three, the sum of the digits must be a multiple of three.
Using this knowledge, the numbers 1, 4, and 7 are all answers to this problem.
425, 910: 4 + 2 + 5 + 9 + 1 + 0 = 21
21 is divisible by 3.
Repeat this for 4 and 7.
Hope this helped!
Answer:
A 144units ^ 2
Step-by-step explanation:
Answer:
That can also be written as
60,000/10= 6,000
Trapezoid
x = 13.5 m - 7.5m / 2
= 6/2
= 3 m
Therefore x = 3 m
y = a^2=b^2 + c^2
= a^2 = 9^2 + 3^2
= a^2 = 90
= a = 9.5m
Therefore y = 9.5m
Perimeter = a+b+c+d
= 9.5 + 9.5 + 7.5 + 13.5
= 40m
Area= a+b/2 h
= 7.5+13.5/2 x 9
= 94.5 m^2
Kite
Area= p x q /2
= 12 x 9 /2
= 54 m^2
Since the polyhedron is about 78.5 m², the radius of the sphere is 2.5 m
Since the sum of the faces of the polyhefron equals the surface area of the sphere, we find its surface area.
<h3>What is the surface area of sphere?</h3>
The surface area of sphere is given by A = 4πr² where r = radius of sphere
<h3>Radius of the sphere</h3>
Making r subject of the formula, we have
r = √(A/4π)
Given that he sum of all the faces of the polyhedron is about 78.5 square meters, this is equal to the surface area of the sphere.
So, A = 78.5 m²
Substituting this into the equation for r, we have
r = √(A/4π)
r = √(78.5 m²/4π)
r = √(19.625 m²/π)
= √(6.246 m²)
= 2.499 m
≅ 2.5 m
So, the radius of the sphere is 2.5 m
Learn more about radius of sphere here:
brainly.com/question/13458041
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