Answer:
a. 7 and 4
b. 28
Step-by-step explanation:
7 minus 4 is 3
7 plus 4 is 11
7 times 4 is 28
The solution set of the inequality x ≥ - 4 using set builder notation and interval notation is {x | x ∈ Z, - 4 ≤ x ≤ ∞ } and [ - 4, ∞ ) respectively.
An inequality in mathematics is a relation that compares two numbers or other mathematical expressions in an unequal way.
A set can be represented by its elements or the properties that each of its members must meet can be described using set-builder notation.
Interval Notation: A set of real numbers known as an interval contains all real numbers that fall inside any two of the set's numbers.
Consider the inequality,
x ≥ - 4
In the number line, the value of x is equal to and greater than - 4 increasing to infinity.
Therefore,
The solution set using the set builder notation is:
{x | x ∈ Z, - 4 ≤ x ≤ ∞ }
The solution set of the inequality using the interval notation is:
[ - 4, ∞ )
Learn more about set builder notation here:
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The formula in computing the area of the triangle is:
A = bh/2
Where A = area of the triangle
b = base
of the triangle
h =
height of the triangle
What is asked in the problem is the height of the triangle
and you are already given the area so you substitute the given measurements to
the formula:
64 = 8(h) / 2
2 (64) = 8h
8h = 128
h = 16
Therefore, the height of the signal flag is 16 in