Answer:
280 pupils
Step-by-step explanation:
27 + 38 + x = 100 Find what percentage is the Year 9 which is 35%
800 x 0.35 = 280 pupils
Answer:
16 edges.
Step-by-step explanation:
We will use Euler's polyhedron formula to solve for the edges of our convex polyhedron.
Euler's polyhedron formula is: , where,
V= Vertices of polyhedron,
F= Faces of polyhedron,
E= Edges of polyhedron.
Let us substitute V=6 and F=12 in Euler's formula to find number of edges of our polyhedron.
Let us subtract 18 from both sides of our equation.
Therefore, our convex polyhedron will have 16 edges.
Answer: [0,+infiniti)
Step-by-step explanation:
Answer + Step-by-step explanation:
case 1: x ≥ 6 → f(x) = 5x - 28
5(6) - 28 = 30 - 28 = 2
Then
the point A(6 ,2) lie on the graph (line) of f
5(7) - 28 = 35 - 28 = 7
Then
the point B(7 ,7) lie on the graph (line) of f
<u><em>Graphing : </em></u>
When x ≥ 6 ,the graph of f is the ray [AB) (just connect the points A and B)
case 2: x ≤ 6 → f(x) = -5x + 32
-5(6) +32 = -30 + 32 = 2
Then
the point A(6 ,2) lie on the graph (line) of f
-5(5) +32 = -25 + 32 = 7
Then
the point C(5 ,7) lie on the graph (line) of f
<u><em>Graphing : </em></u>
When x ≤ 6 ,the graph of f is the ray [AC) (just connect the points A and C)
Quadratic equations are equations that has a leading degree of 2. The value of x from the given quadratic equation is 2 or -12
<h3>Quadaratic equation</h3>
Quadratic equations are equations that has a leading degree of 2
GIven the quadratic equation expressed as x^2 + 10x + 12 = 36
Rewrite
x^2 + 10x - 36 + 12 = 0
x^2 + 10x - 24 = 0
Factorize
x^2 + 12x -2x - 24 = 0
x(x+12) -2(x+12) = 0
x - 2 = 0 and x = -12
x =2 or -12
Hence the value of x from the given quadratic equation is 2 or -12
Learn more on quadratic equation here: brainly.com/question/1214333
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