Pls helppp i dont get it at all
Answer:
Law of Sines
Step-by-step explanation:
for conducting a two-tailed hypothesis test with a certain data set, using the smaller of n11 and n21 for the degrees of freedom results in df11, and the corresponding critical values are t2.201. using the formula for the exact degrees of freedom results in df19.063, and the corresponding critical values are t2.093. how is using the critical values of t2.201 more conservative than using the critical values of 2.093?
Using the critical values of t=+/-2.201 is less likely to lead to rejection of the null hypothesis than using the critical values of +/-2.093.
Critical Value Definition -
Critical value can be defined as a value that is compared to a test statistic in hypothesis testing to determine whether the null hypothesis is to be rejected or not.
If the value of the test statistic is less extreme than the critical value, then the null hypothesis cannot be rejected.
Critical values are essentially cut-off values that define regions where the test statistic is unlikely to lie; for example, a region where the critical value is exceeded with probability \alpha if the null hypothesis is true.
Using the critical values of t=±2.201 is more "conservative" than using the critical value of ±2.093 because it is more likely to reject the null hypothesis using the greater value i-e t=±2.201.
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Chocolate bars cost $2.50 each.
The more chocolate bars Terri buys, the more
money she will have to pay.
Identify the dependent variable.
Answer:
The dependent variable is the cost
Step-by-step explanation:
The dependent variable is the variable that depends on the independent variable to either increase or decrease.
In this case, the dependent variable is the cost, and the independent variable is the number of chocolate bars.
what is 4+4? 4+4 is 8
Answer: 8
Step-by-step explanation:
4+4 is the same as 4 times 2
They both equal to 8
Select the graph for the solution of the open sentence. Click until the correct graph appears.
3|x| > 6
Answer:
third one:
x<-2 or x>2
Step-by-step explanation:
Answer:
third one
Step-by-step explanation:
]
02.03 Focus Questions
What are linear equations and functions?
What are the different ways of representing a linear function?
How are key features of a linear function identified and interpreted from a graph?
How are key features of a linear function identified and interpreted from a table?
How are key features of a linear function identified and interpreted from an equation?
How are key features of a linear function identified and interpreted from a description?
Linear functions are those whose graph is a straight line and it has the following form. y = f(x) = a + bx.
There are several ways to represent a linear function such ad word form, function notation, tabular form, and graphical form.
The key features of a linear function identified and interpreted from a description as an increasing linear function results in a graph that slants upward from left to right and has a positive slope.
What is a linear function?A linear function can be expressed as a point slope or a line with a slope intercept. The ordered pairs will represent points on the line where a table of values representing the function is provided. According to the values in the table, the gradient of the line is a ratio of rise to run. The gradient and initial value of the function are shown in slope intercept form.
A graph with a positive slope and a left-to-right slope is produced by an increasing linear function. A graph with a negative slope and a left-to-right slant is produced by a decreasing linear function. A graph with a constant linear function looks like a horizontal line.
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Find the radius of the circle which circumference is 22 cm.
Answer:
3.5 cm
Step-by-step explanation:
Circumference: C = 2πr
so radius r = C/2π = 22/2π = 3.5 cm
What is 10 percent of 75
Answer:
7.5
Step-by-step explanation:
100% = 75
100% divided by 10 is 10%
75 divided by 10 is 7.5
Statistics tree diagram word problem, select the correct tree diagram.
Each day mr brightside chooses one digit number from a random number table to decide if he will walk to work or drive that day. the numbers 0 through 3 indicate he will drive, 4 through 8 mean he will walk. if he drives, he has a probability of 0.1 of being late. if he walks, his probability of being late rises to 0.25. let 2=walk, d= drive, l=late, and nl= not late. which of the following tree diagrams summarizes these probabilities?
The tree diagram that summarizes these probabilities is Option (D).
What is probability?Probability is the chance of occurrence of a certain event out of the total no. of events that can occur in a given context.
Here, N(S) = 10, The numbers from 0 - 9.
The probability of going to work by driving is (4/10) = 0.4.
If he drives, he has a probability of 0.1 of being late so P(NL) = 1 - 0.1 = 0.9.
The probability of going to work by walking is = 6/10 = 0.6.
if he walks, his probability of late rising to 0.25 so, P(NL) = 1 - 0.25 = 0.75.
Now we'll connect this information to the given options.
From the given options, Option (D) satisfies the given information.
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passes through the points (-2,-9) and (4, -6)
y=1/2x-8 is the equation of line passing through points (-2,-9) and (4, -6) is
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
The points are (-2,-9) and (4, -6)
Slope=-6+9/4+2
=3/6=1/2
Let us find the y intercept by the point (-2, -9)
-9=1/2(-2)+b
-9=-1+b
-9+1=b
-8=b
Hence, the equation of line passing through points (-2,-9) and (4, -6) is y=1/2x-8.
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a man 6 feet tall walks at a rate of 5 ft / sec away from a light that is 15 feet above the ground. when he is 10 feet from the base of the light, at what rate is the tip of his shadow moving?
On solving the provided question we can say that - rate is the tip of his shadow moving is [tex]d/dt ( s-x) = ds/dt - dx/dt = 25/3 - 5 = 25/3 - 15/3 = 10/3 ft/s = 10/3 ft/s[/tex]
What is triangle?Three sides and three vertices make up a triangle, which is a polygon. It is among the fundamental forms in geometry. Triangle ABC is a graphical representation of a triangle having vertices A, B, and C. When the three points are not collinear, a unique plane and triangle in Euclidean geometry are found. A triangle is what? A triangle is a polygon that has three sides and three corners. The spots where the three sides join end to end make up the triangle's corners. Three triangle angles added together equal 180 degrees.
triangles and the ratios
15 ft s
-------- = --------------
6 ft s-x
Using cross products
[tex]15( s-x) = 6s\\15s -15x = 6s\\15s-6s = 15x\\9s = 15x\\s = 15/9 x\\s = 5/3 x[/tex]
Taking the derivative of each side with respect to time
[tex]ds/dt = 5/3 dx/dt\\We know dx/dt = 5 ft/s\\ds /dt = 5/3 * 5 = 25/3 ft/s\\a) ds/dt = 25/3 ft/s[/tex]
The length of the shadow is ( s-x)
[tex]d/dt ( s-x)\\ds/dt - dx/dt\\25/3 - 5\\25/3 - 15/3\\10/3 ft/s\\b) 10/3 ft/s[/tex]
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Bob's gift shop sold a record number of cards for Mother's Day. One salesman sold 33 cards, which was 10% of the cards sold for Mother's Day. How many cards were sold for Mother's Day?
Answer:330
Step-by-step explanation:
Set up cross multiplication:
33/x 10/100
Cross multiply
10*x 100*33
Divide sums
3,300/10x
Answer:
330 total cards
Question 20
A rectangular courtyard has a cement walkway around its perimeter. The area of the courtyard can be represented by the expression 24(5x - 1).
The area of the cement walkway can be represented by the expression 32(5x-1 + 8)- 24(5x-1). Write an equivalent expression that
represents the area of the cement walkway.square yards
Answer:
Step-by-step explanation:
The area of the courtyard is given by the expression 24(5x - 1), and the area of the cement walkway is given by the expression 32(5x-1 + 8)- 24(5x-1). To find an equivalent expression for the area of the cement walkway, we can first distribute the 32 and the 24 in the second expression to get:
Area of cement walkway = 32 * (5x-1 + 8) - 24 * (5x-1)
= 32 * 5x-32 - 24 * 5x+24 + 32 * 8 - 24
= 160x-1024 - 120x+576 + 256 - 24
= 40x-448 + 256 - 24
= 40x-192
Therefore, an equivalent expression for the area of the cement walkway is 40x - 192. This expression represents the area of the cement walkway in square yards.
PLEASE HELP ASAP WILL MARK YOU BRAINIEST!!
Answer:
A , E
Step-by-step explanation:
side of the square = 10
there are 4 side in the perimeter
10 · 4 = 40
the radius of the semicircle is the value of the side of the square = 10
there are two equals semicircle, so the total perimeter of these shapes is equal to a complete circle
10 · 2 · π = 20π
total perimeter
40 + 20π
that can be expanded in
10 + 10 + 10π + 10 + 10 + 10π
Calculate the magnitude of y. trapezium
K = 123°
L = 71°
M = 39°
N = y
Explanation:
A trapezium has four sides, so it is a quadrilateral.
Any quadrilateral has all four interior angles add to 360 degrees.
K+L+M+N = 360
123+71+39+y = 360
233+y = 360
y = 360-233
y = 127
Make x the subject of m=n+x/p
Answer:
x = mp - np
Step-by-step explanation:
Make x the subject of m = n + x/p
m = n + x/p
subtract n from both sides:
m - n = n + x/p - n
m - n = x/p
multiply both sides by p:
p(m - n) = p(x/p)
x = p(m - n)
distribute p on right side:
x = mp - np
2: Angle 1 and Angle 4 are vertical angles. If the measure of angle 1 equals 3x + 14 and the
measure of angle 4 equals 5x − 52, what is the measure of Angle 1?
3: Suppose that ∠ = 3x + 8 and ∠ = 2/3x + 62
If ∠ and ∠ are supplementary
angles, what is the measure of ∠?
4:Angle 2 and Angle 3 are vertical angles. If the measure of angle 2 equals 13x + 27 and the
measure of angle 3 equals 9x + 59, find the value of .
5: Suppose that m∠ABC = 163° and ∠XYZ = 5x + 2. If ∠ABC and ∠XYZ are supplementary
angles, determine the value of x
2. The measurement of angle 1 is 113°
3. The measure of ∠1 = 98° and ∠2 = 82°
4. The value of x is 8.
5. The value of x is 3.
What is the supplementary angle?
Angles that add up to 180 degrees are referred to as supplementary angles. For instance, angle 130° and angle 50° are complementary angles since the sum of these two angles is 180°.
2.
Given that, ∠1 and ∠4 are vertical angle.
According to the vertical angle theorem, if two angles are vertical then they are congruent.
Therefore,
∠1 = ∠4
3x + 14 = 5x − 52
Subtract 5x from both sides:
3x - 5x + 14 = -52
-2x + 14 = -52
Subtract 14 from both sides:
-2x = -66
x = -33
Putting x = -33 in ∠1 = 3x + 14
∠1 = 3× 33 + 14 = 113°
3.
Given that, ∠1 = 3x + 8 and ∠2 = 2/3x + 62 are supplementary angles.
Therefore ∠1 + ∠2 = 180°
3x + 8 + 2/3x + 62 = 180°
11/3 x + 70 = 180°
Subtract 70 from both sides:
11/3 x = 110
x = 110 × (3/11)
x = 30
Putting x = 30 in ∠1 = 3x + 8 and ∠2 = 2/3x + 62
∠1 = 3x + 8 = 3×30 + 8 = 98°
∠2 = 2/3x + 62 = (2/3)×30 + 62 = 82°
4.
Given that, Angle 2 and Angle 3 are vertical angles. If the measure of angle 2 equals 13x + 27 and the measure of angle 3 equals 9x + 59.
Therefore,
∠2 = ∠3
13x + 27 = 9x + 59
Subtract 9x from both sides:
13x - 9x + 27 = 9x -9x +59
4x +27 = 59
Subtract 27 from both sides:
4x = 32
x = 8
5. Given that m∠ABC = 163° and ∠XYZ = 5x + 2 are supplementary angles.
m∠ABC + m∠XYZ =180°
163° + 5x + 2 =180°
165 + 5x = 180
Subtract 165 from both sides:
5x = 15
x = 3
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Answer:
2) m∠1 = 113°
3) 98° and 82°
4) x = 8
Angles = 131°
5) x = 3
Step-by-step explanation:
Question 2If Angle 1 and Angle 4 are vertical angles, then according the Vertical Angles Theorem they are congruent.
Therefore:
⇒ m∠1 = m∠4
⇒ 3x + 14 = 5x - 52
⇒ -2x + 14 = -52
⇒ -2x = -66
⇒ x = 33
To find the measure of Angle 1, substitute the found value of x into the expression for the angle:
⇒ m∠1 = 3x + 14
⇒ m∠1 = 3(33) + 14
⇒ m∠1 = 99 + 14
⇒ m∠1 = 113°
Question 3Given:
∠ = 3x + 8∠ = ²/₃x + 62If the angles are supplementary, they sum to 180°:
⇒ 3x + 8 + ²/₃x + 62 = 180
⇒ ¹¹/₃x + 70 = 180
⇒ ¹¹/₃x = 110
⇒ 11x = 330
⇒ x = 30
Substitute the found value of x into the expressions for the angles:
⇒ ∠ = 3x + 8
⇒ ∠ = 3(30) + 8
⇒ ∠ = 98°
⇒ ∠ = ²/₃x + 62
⇒ ∠ = ²/₃(30) + 62
⇒ ∠ = 82°
Question 4If Angle 2 and Angle 3 are vertical angles, then according the Vertical Angles Theorem they are congruent.
Therefore:
⇒ m∠2 = m∠3
⇒ 13x + 27 = 9x + 59
⇒ 4x + 27 = 59
⇒ 4x = 32
⇒ x = 8
Substitute the found value of x into the expressions for the angles:
⇒ m∠2 = 13x + 27
⇒ m∠2 = 13(8) + 27
⇒ m∠2 = 104 + 27
⇒ m∠2 = 131°
⇒ m∠3 = 9x + 59
⇒ m∠3 = 9(8) + 59
⇒ m∠3 = 72 + 59
⇒ m∠3 = 131°
Question 5Given:
m∠ABC = 163° m∠XYZ = 5x + 2If ∠ABC and ∠XYZ are supplementary, they sum to 180°:
⇒ m∠ABC + m∠XYZ = 180°
⇒ 163 + 5x + 2 = 180
⇒ 5x + 165 = 180
⇒ 5x = 15
⇒ x = 3
is tangent to circle A at point G. If AG = 8 and GI = 15, determine the length of .
1) 17 units
2) 18.3 units
3) 15 units
4) 12.7 units
Answer:
hope u want to know the length of AH.
it is 17 units
Step-by-step explanation:
AGH is 90° (tangent )
AG is 8 units and GH is 15 units (Data)
so using Pythegorus theorem
AG² + GH² = AH²
gives √(8²+15²)
= 17 units
Write y+4=2(x-7) in standard form
[tex] \Large{\boxed{\sf 2x - y = 18}} [/tex]
[tex] \\ [/tex]
Explanation:We will try to write the given linear equation in standard form.
[tex] \Large{\left[ \begin{array}{c c c} \underline{\tt Standard \ Form \ of \ a \ linear \ equation \text{:}} \\ ~ \\ \tt Ax + By = C \end{array} \right] } [/tex]
Where:
A is a positive integer. (A ≠ 0)B and C are integers. (B ≠ 0)[tex] \\ [/tex]
Given linear equation:
[tex] \sf y + 4 = 2(x - 7) [/tex]
[tex] \\ [/tex]
First, expand the right side of the equation:
[tex] \sf y + 4 = 2 \cdot x + 2 \cdot (-7) \\ \\ \sf y + 4 = 2x - 14 [/tex]
[tex] \\ [/tex]
Subtract 2x from both sides of the equation:
[tex] \sf y + 4 - 2x = 2x - 14 - 2x \\ \\ \sf -2x + y + 4 = -14 [/tex]
[tex] \\ [/tex]
Subtract 4 from both sides of the equation:
[tex] \sf -2x + y + 4 - 4 = -14 - 4 \\ \\ \sf -2x + y = -18 [/tex]
[tex] \\ [/tex]
Since the coefficient of x (-2) has to be positive, multiply both sides of the equation by -1:
[tex] \sf -1 \cdot (-2x + y) = -1 \cdot (-18) \\ \\ \sf -1 \cdot (-2x) + (-1) \cdot y = 18 \\ \\ \boxed{\boxed{\sf 2x - y = 18 }} [/tex]
[tex] \\ [/tex]
[tex] \hrulefill [/tex]
[tex] \\ [/tex]
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show that if a, b, c, and d are integers, where a = 0, such that a | c and b | d, then ab | cd.
If a, b, c, and d are integers, where a = 0, such that a | c and b | d, then ab | cd.
In this question we need to prove if a, b, c, and d are integers, where a = 0, such that a | c and b | d, then ab | cd.
We know that the definition of divisibility i.e., m divides n if there exists an integer p such that n = mp
If a | c and b | d, then there exist integers x and y such that c = ax and d = by.
Consider a multiplication c * d
= (ax) * (by)
= axby
= (ab)xy
= ab(xy)
Let k be equal to the integer xy
So, cd = ab(k)
Using the definition of divisibility, cd is divisible by ab.
Therefore, if a | c and b | d, then ab | cd.
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tom and addison made plans to meet up in the state park to spend some time hiking together. tom arrived early and started wandering up the trail, snapping some photos along the way. his speed was 4 kilometers per hour. addison arrived later, when tom was already 6 kilometers ahead, and started hiking up the trail at 10 kilometers per hour to catch up. how much time did it take addison to catch up to tom?
Answer:
Math Expert Answer
Step-by-step explanation:
So toms equation is y= 4x + 6 and addisons equation is y=10x so they will meet eachother in 1 hour. You can use a desmos calculator to input the equations for the answer
Answer:
1 hour
Step-by-step explanation:
Let's set up an equation for Tom's and Addison's distances: T(x) = 4x + 6, A(x) = 10x, where x is the amount of time since Addison started (in hours).
We solve for A(x) = T(x) and get:
10x = 4x + 6 → subtract 4x from both sides
6x = 6 → divide both sides by 6
x = 1
Therefore, it took Addison 1 hour to catch up with Tom
Jana purchase a jewelry making kit to make gifts for her friends.The kit includes Material to make 72 bracelets.Write and solve an equation to show how many more bracelets she can make from the kit.
WILL GIVE BRAINLIEST
Answer:
72 = b + 24
Step-by-step explanation:
b = 48 bracelets
At her health clubs, Lauren uses a treadmill every 2 days and the weight machines every 8 days. She used a treadmill on march 2 and will use the weight machines on march 8. Lauren says that the first time she will use both a treadmill and the weight machines in march is march 16 because the lcm of 2 and 8 is 16. Does Lauren’s reasoning make sense? Use an example or a counterexample to explain your analysis
Lauren's reasoning does not make sense because the LCM of 2 and 8 is not 16, the LCM will be equal to 8.
What is LCM?The Least Common Multiple is the meaning of the acronym LCM. The smallest number that both numbers can divide by is known as the least frequent multiple (LCM) for two numbers.
It can also be computed for several different numbers.
As per the given information in the question,
Lauren says that the LCM of 2 and 8 is 16.
Now, let's check whether it is correct or not.
Let's make a factor of both numbers,
2 = 2 × 1
8 = 2 × 2 × 2
So, the LCM will be: 2 × 2 × 2 = 8
It means that the LCM of 2 and 8 is not 16, the LCM is 8.
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6th grade math IXL program
Answer:
1.5 groups.
Step-by-step explanation:
1 divided by 8/12 is 1.5
Answer:
1 1/2
Step-by-step explanation:
The figure shows a large rectangle that is divided into 12 parts of equal size.
Think of the entire rectangle as 1.
Each small rectangle is 1/12 of 1.
Now count 8 small rectangles starting at the left.
When you divide 1 by 8/12, you can fit 1 full 8/12 (8 small rectangles) and another half of 8/12 (another 4 small rectangles.
Since you can fit 1 1/2 groups of 8 small rectangles,the result is 1 1/2.
Answer: 1 ÷ 8/12 = 1 1/2
Figure A ha an area of 18 quare feet. Figure B ha an area of 98 quare feet and one of the ide length i 14 feet. Find the miing correponding ide length if figure A i imilar to Figure B
The side length of Figure A can be determined using the ratio of areas and the known side length of Figure B. The area of Figure A is 18 square feet and the area of Figure B is 98 square feet. The side length of Figure B is 14 feet. Using these values, the corresponding side length of Figure A can be calculated to be 7 feet.
The missing corresponding side length of Figure A can be determined using the ratio of areas and the known side length of Figure B. If two shapes are similar, then their corresponding sides are in the same ratio as their areas. Since the area of Figure A is 18 square feet and the area of Figure B is 98 square feet, the ratio of their areas is 18/98. Since the side length of Figure B is 14 feet, the corresponding side length of Figure A can be calculated by multiplying 14 feet by the ratio of 18/98, which is 0.1837. This value can be rounded to 7 feet. Therefore, the missing corresponding side length of Figure A is 7 feet. This result can be verified by calculating the area of Figure A using the known side length and the missing side length. If the two side lengths are multiplied together, the product should be equal to the area of Figure A, which is 18 square feet.
7 feet x 11 feet = 77 feet^2
77 feet^2 = 18 feet^2 (Area of Figure A)
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the number of pieces of cat food in a one-cup scoop is approximately normally distributed with a mean of 344 pieces and a standard deviation of 16 pieces. if a random sample of 28 scoops of cat food is selected, what is the probability that the mean number of pieces will be more than 350 pieces?
Answer:
the probability that the mean number of pieces in a sample of 28 scoops is more than 350 pieces is approximately 0.0228
Step-by-step explanation:
To find the probability that the mean number of pieces in a sample of 28 scoops is more than 350 pieces, we can use the normal distribution.
The standard error of the mean for a sample of size 28 is the standard deviation of the population divided by the square root of the sample size, or 16 / sqrt(28) = 2.8.
This means that the distribution of the sample means is approximately normally distributed with a mean of 344 pieces and a standard error of 2.8 pieces.
To find the probability that the sample mean is more than 350 pieces, we can use the cumulative distribution function of the normal distribution. In this case, we want to find the probability that a normally distributed random variable is greater than 350.
Using a normal distribution calculator or table, we can find that the probability that a normally distributed random variable with a mean of 344 and a standard error of 2.8 is greater than 350 is approximately 0.0228.
Therefore, the probability that the mean number of pieces in a sample of 28 scoops is more than 350 pieces is approximately 0.0228.
f(x)=x^4+8x^3+11x^2-9x+28=0
The roots of the quartic polynomial f(x) = x⁴ + 8x³ + 11x² - 9x + 28 are ±1, ±2, ±3, ±4, ±7, ±14, ±28
Roots of a PolynomialIn the given problem, we have to find the roots of the fourth degree polynomial and factorize the given polynomial equation first in order to obtain three equations which are linear and quadratic equation. We can easily determine the zeros of the fourth degree polynomial.
Generally, polynomials of fourth degrees are called quartic polynomials.
f(x) = x⁴ + 8x³ + 11x² - 9x + 28
When we factorize this, we wouldn't get a lower value because this quartic polynomial cannot be factorized.
However, we can still find the roots which are the solution to the polynomial and are
x = ±1, ±2, ±3, ±4, ±7, ±14, ±28
These values are the solution to the polynomial.
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complete question : What are the roots of f(x)=x^4+8x^3+11x^2-9x+28
5(x-9)=55
What would you do to both ide firt?
A. Subtract 5
B. Divide by 5
C. Add 9
D. Subtract 55
Answer:
b
Step-by-step explanation:
we first make
1.Subtraction/Adding
2.Mutiply/Division
what is the size of angle ADC
what is the size of angle ADB
Answer:
∠ADC = 58°∠ADB = 37° BD is a diameterStep-by-step explanation:
You want to know the measures of angles ADB and ADC given that inscribed angle BAC is 21° and exterior angle CBE is 58°.
Exterior angleAngle CBE is exterior to triangle CBA with remote interior angles BAC (21°) and ACB. The exterior angle is equal to the sum of the remote interior angles, so ...
∠CAB +∠ACB = ∠CBE
21° +∠ACB = 58°
∠ACB = 37° . . . . . . . . subtract 21°
a) ∠ADCThe measure of an inscribed angle is half the measure of the arc it intercepts. This means the measures of all inscribed angles that intercept the same arc are the same.
∠ADB = ∠ACB = 37°
∠BDC = ∠CAB = 21°
By the Angle Addition theorem, ...
∠ADC = ∠ADB +∠BDC = 37° +21°
∠ADC = 58°
b) ∠ADBAs we just saw, ...
∠ADB = 37°
c) BDFor angle CAD = 69°, the total of the inscribed angles with vertex A is ...
∠CAD +∠CAB = ∠BAD
69° +21° = 90° = ∠BAD
This means angle BAD intercepts an arc BD of 180°, hence segment BD is a diameter.
__
The attached figure is accurately drawn.
Which are irrational numbers?
Answer:
A is the only irrational number present.
Step-by-step explanation:
The bottom two numbers can be simplified into 7 and 5. Meanwhile, B is a repeating number. A is a non-repeating and non terminating number.
Answer:
A.
Step-by-step explanation:
An irrational number is any real number that cannot be equally divided by 2 integers. (It's not a perfect square.)
No whole number multiplied by itself equals 27.