Leigh will use 16 connecting cubes to make a model of playground. The model will be in the shape of rectangle and will have the
2 answers:
Answer: 3 ways.
Step-by-step explanation:
Given: Leigh will use 16 connecting cubes to make a model of playground.
To form rectangle write the above number of cubes in form, where m represents the number of cubes in row and n represents the number of cubes column.
We now that by using prime factorization the number 16 can be written as
Thus, the cubes can be arranged as or vice- versa such that the model will be in the shape of rectangle and will have the height of one cube.
Hence, in 3 different ways she can make the model of the playground.
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Answer:
<h2>A = 2.25π</h2>Step-by-step explanation:
The formula of an area of a circle:
r - radius
The formula of a circumference of a circle:
We have:
Substitute:
<em>divide both sides by 2π</em>
Substitute:
Answer:
A quadratic equation can be written as:
a*x^2 + b*x + c = 0.
where a, b and c are real numbers.
The solutions of this equation can be found by the equation:
Where the determinant is D = b^2 - 4*a*c.
Now, if D>0
we have the square root of a positive number, which will be equal to a real number.
√D = R
then the solutions are:
Where each sign of R is a different solution for the equation.
If D< 0, we have the square root of a negative number, then we have a complex component:
√D = i*R
We have two complex solutions.
If D = 0
√0 = 0
then:
We have only one real solution (or two equal solutions, depending on how you see it)