The two angles pictured below are vertical angles.
Two lines intersect. The vertical angles measure eighty-four degrees and eight times x minus twelve.
What is the value of x?
The value of x in the vertical angles is 12.
What are vertically opposite angles?When two lines intersect each other, then the opposite angles, formed due to intersection are called vertical angles or vertically opposite angles.
In other words, vertically opposite angles are angles that are opposite one another at a specific vertex and are created by two straight intersecting lines.
Vertically opposite angles are congruent.
Therefore, the vertical angles measures 84 degrees and 8x - 12.
Let's find the value of x using the principle of vertically opposite angles.
Therefore,
84 = 8x - 12
add 12 to both sides of the equation
84 + 12 = 8x - 12 + 12
96 = 8x
divide both sides by 8
x = 96 / 8
x = 12
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3:5:7=....:30:...
help me keeds please
Answer:
3=6 5=10 7=14
Step-by-step explanation:
here's how to do it u wwould have to sum (+) up all the ratios then it would give u 15 after then u divide the sum by 15 hen u multiply by ratios .
Triangle ABC has the following angle measures:
m∠A = (x + 6)°, m∠B = (3x − 15)°, m∠C = (5x + 36)°
What is m∠C?
The measure of ∠C is 121 degrees.
Given that:-
There is a triangle ABC.
m∠A = (x + 6)°
m∠B = (3x - 15)°
m∠C = (5x + 36)°
We have to find the measure of ∠C.
We know that,
The sum of all the angles of a triangle is 180 degrees.
Hence, we can write,
m∠A + m∠B + m∠C = 180 degrees
(x + 6)° + (3x - 15)° + (5x + 36)° = 180 degrees
(x + 3x + 5x) + (6 - 15 + 36) = 180 degrees
9x + 27 = 180 degrees
9x = 180 - 27
9x = 153 degrees
x = 153/9 degrees
x = 17 degrees
Hence,
The measure of ∠C = 5x + 36 = 5*17 + 36 = 85 + 36 = 121 degrees.
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Divide 7 and 2 over 3 ÷ negative 3 and 1 over 5.
negative 2 and 19 over 48
negative 24 and 8 over 15
negative 21 and 2 over 15
negative 3 and 19 over 93
Dividing 7 and 2 over 3 ÷ negative 3 and 1 over 5 will give a quotient of negative 2 and 19 over 48
How to determine the quotient of 7 and 2 over 3 ÷ negative 3 and 1 over 5information gotten from the question include
Divide 7 and 2 over 3 ÷ negative 3 and 1 over 5.
Division is a basic mathematical operator that performs the function of sharing
division of fraction is done as follows
7 and 2 over 3
= 7 2/3
= 23/3
negative 3 and 1 over 5.
= -3 1/5
= -16/5
= 23/3 ÷ -16/5
= 23/3 * -5/16
= -115/48
= -2 19/48
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I need help please(˘・_・˘)
Answer:
with?
Step-by-step explanation:
I need help if you don't mind. I have to graph the linear equation using intercepts.
We want to find the places where the line
2x - 3y = 12
intercepts y-axis and x- axis
y- interceptWhen the line intercepts y axis, we know that x=0, we replace it in the equation so we can find y value:
2x - 3y = 12
↓
2 · 0 - 3y = 12
↓
0 - 3y = 12
-3y = 12
y = 12 / -3
y = -4
x - interceptIn the same way, we find the interception with x- axis when y = 0. We find the value of x replacing y by 0 in the equation:
2x - 3y = 12
↓
2x - 3 · 0 = 12
↓
2x - 0 = 12
2x=12
x = 12 / 2
x = 6
GraphWe locate both points: y = -4 and x = 6:
Finally, we join the points with a straight line
A tent pole that is 9 feet tall is secured to the ground with a piece of rope that is 15 feet long from the top of the tent pole to the ground. Determine the number of feet from the tent pole to the rope along the ground.
Answer:
12 ft
Step-by-step explanation:
To find the base (b), you would first need to sketch a right triangle using the following:
a = 9
c = 15
Using the Pythagorean theorem [tex]a^{2} +b^{2} =c^{2}[/tex], you would change it to [tex]c^{2} -a^{2} =b^{2}[/tex] to fit the question. Next, you would plug in the numbers to the corresponding letter.
[tex]15^{2} -9^{2} =b^{2}[/tex]
[tex]225-81=144^{2}[/tex]
[tex]\sqrt{144} =b[/tex]
[tex]12=b[/tex]
The horizontal distance from the tent pole to the rope along the ground will be equal to 12 feet.
What is the Pythagoras' Theorem?According to the Pythagoras theorem, if a triangle has a straight angle (90 degrees), the hypotenuse's square is equal to the total of its other two sides' squares.
As per the given in the question,
Height of tent pole, p = 9 feet
Height of rope, h = 15 feet
Let the horizontal distance from pole to rope is b.
Use Pythagoras' theorem,
h² = p² + b²
15² = 9² + b²
b² = 225- 81
b = √144
b = 12 feet.
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A cereal bar contains 130 calories. The number c of
calories consumed is a function of the number b bars
eaten.
a. Does this situation represent a linear function?
Explain.
b. Find the domain of the function. Is the domain
discrete or continuous? Explain.
c. Graph the function using its domain.
The domain of the function will be; [0 ∞) and the domain is continuous.
What are the domain and range of the function?The domain of the function includes all possible x values of a function, and the range includes all possible y values of the function.
The number c of calories consumed is a function of the number b bars
eaten is represented by the linear function b = 130c
The domain of the linear function would be [0 ∞).
A whole number or a decimal number may be c.
Any data which can be expressed as a decimal is continuous data.
Therefore, the domain of the function will be; [0 ∞) and the domain is continuous.
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If there are 16 successful outcomes in a sample with a size of 50, what is the
sample proportion?
OA. 0.55
OB. 0.16
OC. 0.34
OD. 0.32
The sample proportion is option(d) i.e, 0.32
What is Proportion?
A proportion is an equation in which two ratios are set equal to each other.
Given,
Number of successful outcomes = 16
Total number of outcomes = 50
The sample proportion =
Number of successful outcomes / Total number of outcomes
Sample proportion = 16 / 50
= 0.32
Hence, the sample proportion is option(d) i.e, 0.32
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a street light is at the top of a ft. tall pole. a man ft tall walks away from the pole with a speed of feet/sec along a straight path. how fast is the tip of his shadow moving when he is feet from the pole?
[tex]\frac{dx}{dy} = \frac{5}{3}. 4\frac{ft}{s} = \frac{20}{3}\frac{ft}{s}[/tex] is moving at the speed of the shadow
x is the distance from the man to the pole, and y is the distance from the tip of the man's shadow to the pole. I assume the man and pole are standing straight up, which means the two cases are similar.
[tex]\frac{y-x}{y} = \frac{6}{15}[/tex]
15(y-x) = 6y
9y = 15x
[tex]\frac{5}{3}x\\[/tex] = y
differentiate both sides with respect to t or time.
[tex]\frac{dx}d{y} = \frac{5}{3}\frac{dx}{dt}[/tex]
you know [tex]\frac{dx}{dy} = 4\frac{ft}{s}[/tex] because the man is walking that speed away from the pole. you want to find [tex]\frac{dx}{dy}[/tex] , how fast the tip of the shadow is moving.
that means
[tex]\frac{dx}{dy} = \frac{5}{3}. 4\frac{ft}{s} = \frac{20}{3}\frac{ft}{s}[/tex]
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Simplify the following expression
Answer:
y
-------------
x²¹ z⁵
Step-by-step explanation:
(x⁻⁹ y³ z⁻²)²
-------------------
x³ y⁵ z
x⁻¹⁸ y⁶ z⁻⁴
-------------------
x³ y⁵ z
y⁶
-------------------
x³ ⁺ ¹⁸ y⁵ z¹ ⁺ ⁴
y
-------------------
x²¹ z⁵
I hope this helps!
After simplification by rule of exponent solution is,
⇒ y / x²¹ z⁵
We have to given that;
The expression is,
⇒ (x⁻⁹ y³ z⁻²)² / x³ y⁵ z
Now, We can simplify by rule of exponent as;
⇒ (x⁻⁹ y³ z⁻²)² / x³ y⁵ z
⇒ x⁻¹⁸ y⁶ z⁻⁴ / x³ y⁵ z
⇒ y⁶ / x³ ⁺ ¹⁸ y⁵ z¹ ⁺ ⁴
⇒ y / x²¹ z⁵
Thus, After simplification by rule of exponent solution is,
⇒ y / x²¹ z⁵
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what is the size of the angle between south and south east
The angle between north and south = 180°. The angle between East and South = 90°. The angle between South and West is 90° and between South and East is also 90°. So the sum of these two angles is equal to 180°. Since these two angles are adjacent to each other so they form a linear pair.
Did I get this right I need to know asp
Triangle xyz, z=61 degree, its nearest length If leg an is the missing side and xz=17.3 cm and xy=15.2 cm,
then change the equation to its original form when an is on one side and calculate the square root: a = √(c² - b²)
Leg b is undetermined if. For a missing hypotenuse c, the formula is b = (c2 - a2). c = √(a² + b²)
How do you calculate a triangle's third side?
Different Methods to Determine a Triangle's Third Side?
Use the Pythagorean Theorem while forming a right triangle. Use the isosceles triangle area formula to determine the area of a triangle. Use the law of cosines or the law of sines if you are familiar with some of the angles and other side lengths.
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a 2-member committe will be selected from 6 members of high school student council to attend a rally in washington, d.c. how many different 2-member committes are possible?
The order of the outcomes is irrelevant when calculating the total outcomes of an event using combinations. We will use the formula nCr = n! / r! * (n - r)! to calculate combinations.
15 different 2-member committees are possible.
What is a permutation vs combination?Subsets of a set can be created in two different ways: combination and permutation. The subset's components can be listed in any order when combined. The components of the subset are listed in a permutation in a particular order.The various ways in which items from a set may be chosen, usually without replacement, to form subsets, are called permutations and combinations. When the order of the selection is a factor, this selection of subsets is referred to as a permutation; when it is not, it is referred to as a combination.The order of the outcomes is irrelevant when calculating the total outcomes of an event using combinations. We will use the formula nCr = n! / r! * (n - r)! to calculate combinations.C(6,2) = 6!/(4!2!) = 15.
15 different 2-member committees are possible.
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please help with the question below (please add an explanation)
In order to get the volume of the irregular figure, let's cut it into two regular figures. See the cut below.
First, let's calculate the volume of the upper part.
The dimensions of the upper part are 7cm by 3 cm by 3 cm. Since the shape is a rectangular prism, let's multiply 7, 3, and 3.
[tex]V_{upper}=7cm\times3cm\times3cm=63cm^3[/tex]Hence, the volume of the upper figure is 63 cm³.
Let's now calculate the volume of the lower figure.
The dimensions of the lower figure are 5cm by 4 cm by 3 cm. Since this is a rectangular prism too, let's multiply the dimensions.
[tex]V_{lower}=5cm\times4cm\times3cm=60cm^3[/tex]The volume of the lower figure is 60 cm³.
Let's add the volume of the two figures to get the volume of the entire irregular figure.
[tex]V_{irregular}=V_{upper}+V_{lower}[/tex][tex]V_{irregular}=63cm^3+60cm^3=123cm^3[/tex]Therefore, the entire volume of the given irregular figure is 123 cm³.
Let f(x) = -3x³ + 9x² - 5x + 15. Use the Factor Theorem to help answer the
following questions.
a) Is a
O Yes
O No
b) Is x + 1 a factor of f(x)?
O Yes
No
1 a factor of f(x)?
c) Is a 3 a factor of f(x)?
O Yes
O No
Answer:
See below. I added words tro the first question "Is a" so that I could answer it.
Step-by-step explanation:
f(x) = -3x³ + 9x² - 5x + 15
f(x) = -(x-3)(3x² + 5)
x((9-3x)x-5)+15
-3(x-1)[tex]x^{3}[/tex] + 4(x-1) + 16
=======
a) Is a [ghost happy]?
O Yes Yes, as long as it can haunt.
O No
b) Is x + 1 a factor of f(x)?
O Yes Yes
No
1 a factor of f(x)?
Always
c) Is a 3 a factor of f(x)?
O Yes
O No No, as far as I can see.
Kuta Software In Systems of Two Solve each system by graphing. 2) y=x+2 1) y=-3x +41 y= 3x - 2
ok
Equations : 4x + y = 2 x - y = 3
Equation 1 4x + y = 2 x - y = 3
x y x y
-2 10 -2 -5
-1 6 -1 -4
0 2 0 -3
1 -2 1 -2
2 -6 2 -1
The point where both lines cross is (1, -2) so it is the solution.
Determine the missing number in the equation.
The equation 4 times 7 equals 4 times 10 in parentheses minus 4 times blank
Answer:
The missing number is 3.
Step-by-step explanation:
1. For the sake of the equation, let's represent the missing number as y. Then write the equation: 4*7=(4*10)-4*y
2. Follow according to the order of operations, then you should get the result of 28=40-4y
3. Swap -4y and 28 in the equations: 4y=40-28 which goes to 4y=12.
4. Find y by dividing the rest of the equation by 4: y=3
Could someone please help me this is due at 3 pm and it's allready 2:43 and i only need these questions and i am done please help me. if you answer all you get 20 points! PLEASE HELP PLEASE HELP ANYONE PLEASE PLEASE
a) (2.3 × [tex]$10^4[/tex]) × (1.5 × [tex]$10^{-2}[/tex]) in standard form
The number in standard form is 345
explanation:
The given two multiplication of the numbers is :
(2.3 × [tex]$10^4[/tex]) × (1.5 × [tex]$10^{-2}[/tex])
First we multiply the non exponential terms as shown below
2.3 × 1.5 = 3.45
Now we multiply the exponential terms as shown below
[tex]$10^4[/tex] × [tex]$10^{-2}[/tex] = 100
Now multiplying the exponential and non exponential term we get the number in standard form as shown below
(2.3 × [tex]$10^4[/tex]) × (1.5 × [tex]$10^{-2}[/tex]) in standard form 345
(3.6 × [tex]10^-5[/tex])÷(1.8 × 10²) in standard form 0.0000002
(8 × 10^-3) × (2 × [tex]10^-4[/tex] in standard form 1.6 × [tex]10^-6[/tex]
(6 × 10²)/(3 × 10-5) in standard form 20,00,0000
5.1 × [tex]$10^-1[/tex] in ordinary number is 0.51
(1.7 × [tex]10^4[/tex]) × (8.5x ×[tex]0^-2[/tex]) in standard form 1.445 × 10³.
3.45 x 100 = 345
Therefore, the number in the standard form is 345
b) (3.6 × [tex]10^-5[/tex])÷(1.8 × 10²) in standard form
The number in standard form is 0.0000002
explanation:
By dividing 3.6 by 1.8 we get “2”, hence the above equation becomes,
(2 × [tex]10^-5[/tex]) /[tex]10^2[/tex]
We know that
[tex]\frac{x^{a} }{x^{b} } = x^{a-b}[/tex]
Therefore the above equation becomes,
2 × [tex]10^-7[/tex]
since the exponent of 10 is negative , therefore 7 zeros are written on the left hand side of the number = 0.0000002
Therefore, the number in the standard form is 0.0000002
c) (8 × [tex]10^-3[/tex]) × (2 × [tex]10^-4[/tex]) in standard form
The number in standard form is 1.6 × [tex]10^-6[/tex]
explanation:
Given the product of scientific notations:
(8 × [tex]10^-3[/tex]) × (2 × [tex]10^-4[/tex])
This can be expressed as:
(8 × 2) × ([tex]10^-3[/tex] × [tex]10^-4[/tex])
= 16 × [tex]10^-3[/tex]-4
= 16 × [tex]10^-7[/tex]
= 1.6 × [tex]10^1[/tex] × [tex]10^-7[/tex]
= 1.6 × [tex]10^-6[/tex]
Therefore, the number in the standard form is 1.6 × [tex]10^-6[/tex]
d) (6 × 10²)/(3 × 10-5) in standard form
The number in standard form is 20,00,0000
e) 5.1 × 10^-1 as an ordinary number
The ordinary number is 0.51
usual form of 5.1 × [tex]10^1[/tex] is
5.1 × 1/ [tex]10^1[/tex]
= 5.1/10
= 0.51
Therefore , ordinary number is 0.51
f) (1.7 × [tex]10^4[/tex]) × (8.5 × [tex]10^-2[/tex]) in standard form.
The number in standard form is 1.445 × 10³.
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Consider the arithmetic sequence an = 5 + 3 (n − 1)
a. What are the first 5 terms of the sequence?
b. What is the 9th term in the sequence?
c. Rewrite the explicit formula as a function.
d. What is f(15)?
e. f(n) = 65 what is n?
The answers to the subparts of the arithmetic sequence are shown:
(A) a₅ = 17(B) a₉ = 28What is an arithmetic sequence?A series of numbers called an arithmetic progression or arithmetic sequence has a constant difference between the terms. An arithmetic progression with a common difference of 2 is found, for instance, in the numbers 5, 7, 9, 11, 13, and 15.So, the formula is: aₙ = 5 + 3 (n − 1)
Where n is the number of terms.So, 5th term or n = 5:
a₅ = 5 + 3 (n − 1)a₅ = 5 + 3 (5 − 1)a₅ = 5 + 3 (4)a₅ = 5 + 12a₅ = 17Similarly, the 9th term or n = 9:
a₉ = 5 + 3 (n − 1)a₉ = 5 + 3 (9 − 1)a₉ = 5 + 3 (8)a₉ = 5 + 24a₉ = 28Therefore, the answers to the subparts of the arithmetic sequence are shown:
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The correct question is given below:
Consider the arithmetic sequence an = 5 + 3 (n − 1)
a. What are the first 5 terms of the sequence?
b. What is the 9th term in the sequence?
multiplicative inverse of 7^-2
Answer:
[tex] 7^2[/tex]
Step-by-step explanation:
multiplicative inverse of[tex] \:\:7^{-2} =7^2[/tex]Answer:
7²
Step-by-step explanation:
the product of a number and its multiplicative inverse is equal to 1 , that is
a ×[tex]\frac{1}{a}[/tex] = 1
given
[tex]7^{-2}[/tex] , then multiplicative inverse is [tex]\frac{1}{7^{-2} }[/tex] = 7² and
[tex]7^{-2}[/tex] × 7² = [tex]7^{0}[/tex] = 1
hellp please ?????????????
Answer:
see explanation
Step-by-step explanation:
since the dilatation is centred at the origin , then multiply each of the original coordinates by the scale factor of 2
Q (2, 2 ) → Q' (2(2), 2(2) ) → Q' (4, 4 )
P (0, 0 ) → P' (2(0), 2(0) ) → P' (0, 0 )
R (- 2, - 4 ) → R' (2(- 2), 2(- 4) ) → R' (- 4, - 8 )
S (4, - 2 ) → S' (2(4), 2(- 2) ) → S' (8, - 4 )
Use point-slope form to write the equation of a line that passes through the point (19,-12) with slope -3
Answer:
Step-by-step explanation:
The formula is :
(y - y1) = m(x - x1)
the given values are x1 = 19, y1 = -12 and m = slope = -3
putting values
(y + 12)= -3(x-19)
y + 12 = -3x +57
y+ 3x - 35 = 0
This is the required equation.
An investor purchased 50 shares ofstock in a company for $40 pershare. One year later, the investorsold all the shares for $2,200. Whatis the investor's rate of return?A. 9.1%B. -9.1%C. -10.0%D. 10.0%
Investor purchased 50 shares of stock in a company for $40.
So, the total initial amount he invested is
[tex]50\cdot40=2000[/tex]Then the rate of return is:
[tex]\begin{gathered} \text{rate of return=}\frac{shares\text{ sold price-initial amount invested}}{\text{ initial amount invested}}\cdot100 \\ =\frac{2200-2000}{2000}\cdot100 \\ =\frac{200}{2000}\cdot100 \\ =10 \end{gathered}[/tex]So, the requied rate of return is 10.0%.
Two models are shown. Which expression does each model represent?
Move the correct answer to each box. Not all answers will be used.
Find the average rate of change of his annual salary between 2017 and 2020
We were told that the salary, t years after 2015 is given by the function,
S(t) = 3100t + 56000
When considering 2017, the number of years, t from 2015 is 2017 - 2015 = 2
We would substitute t = 2 into the function and find S(2)
Thus,
S(2) = 3100 x 2 + 56000 = 6200 + 56000 = 62200
When considering 2020, the number of years, t from 2015 is 2020 - 2015 = 5
We would substitute t = 2 into the function and find S(2)
Thus,
S(5) = 3100 x 5 + 56000 = 15500 + 56000 = 71500
Thus, we can say that
when
x1 = 2, y1 = 62200
when x2 = 5, y2 = 71500
Recall,
slope or average rate of change = (y2 - y1)/(x2 - x1)
average rate of change = (71500 - 62200)/(5 - 2) = 9300/3
average rate of change = 3100
The last option is correct
3. What is the probability of rolling a 5 on a fair die, if we know that the roll is odd? 4 Lamino dr
Let:
A = Rolling an odd number
B = Rolling a 5
N = Number of possible outcomes
so:
[tex]\begin{gathered} P(A)=\frac{3}{6}=\frac{1}{2} \\ P(B|A)=\frac{P(B\cap A)}{P(A)} \\ \text{Where:} \\ P(B\cap A)=P(A)\cdot P(B) \\ P(B)=\frac{1}{6} \\ so\colon \\ P(B|A)=\frac{\frac{1}{6}\cdot\frac{1}{2}}{\frac{1}{2}}=\frac{1}{6} \end{gathered}[/tex]Which one of these expressions doesn’t have a value less than 1 please help thank you if u do
The most appropriate choice for exponent will be given by-
Fourth option is correct
What are exponent?
Exponent tells us how many times a number is multiplied by itself.
For example : In [tex]2^4 = 2\times 2\times 2 \times 2[/tex], here, 2 is multiplied by itself 4 times.
If [tex]a^m = a\times a\times a \times.....\times a[/tex] (m times), a is the base and m is the index.
The laws of index are
[tex]a^m \times a^n = a^{m + n}\\\\\frac{a^m}{a^n} = a^{m-n}\\\\a^0 = 1\\\\(a^m)^n = a^{mn}\\\\(\frac{a}{b})^m = \frac{a^m}{b^m}\\\\a^mb^m = (ab)^m[/tex]
Here,
For first option
[tex]\frac{4^{11}}{4^{14}}\\\frac{1}{4^{14 - 11}}\\\frac{1}{4^3}\\\frac{1}{64} < 1[/tex]
For second option
[tex](5^4)^2 \times 5^{-11}\\5^8 \times 5^{-11}\\5^{8-11}\\5^{-3}\\(\frac{1}{5})^3\\\frac{1}{125} < 1[/tex]
For the third option,
[tex](2^3)^{-2}\\2^{-6}\\(\frac{1}{2})^6\\\frac{1}{64} < 1[/tex]
For the fourth option
[tex]\frac{(3^5)^2}{3^4}[/tex]
[tex]\frac{3^{10}}{3^4}\\3^{10 - 4}\\3^6\\ 729 > 1[/tex]
Fourth option does not have an expression greater than 1
Fourth option is correct.
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Determine the coordinates of Q(6, −4) after a reflection in the line x=2
The coordinates of (6, -4) after a reflection in the line x = 2 are:
(-4, -4)
What are the coordinates after the reflection?If we have a point (x, y) and we do a reflection in the line x = a, the new coordinates of the point will be:
(a - x, y)
In this case, we have (6, -4) and the line of reflection is x = 2, then the coordinates after the reflection are:
(2 - 6, -4) = (-4, -4)
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Hattie drew a box plot of annual rainfall in some cities in the world. Select all the statements that are true about the data in the box plot.
Rainfall anually table data
Then
Option A)
Half of the data are between 6 and 18
TRUE , because there are 8/2 = 4 data in the box plot
Option B)
Data point 27 ,could be an outlier
FALSE, because 27 is a black point. It means it belongs, is not out
Option C)
More points between 6,9 that between 9,18
FALSe,. Area between 6,9. Is smaller than area between 9,18
Option D)
Data are less spread out to the left
TRUE, because box plot is ubicated at left
Option E)
Only one data point is less than 6
TRUE, is data point 3