Answer:
x = 36°
Step-by-step explanation:
The sum of the exterior angles of a pentagon is always 360°. Since the pentagon is regular, meaning that all of its sides and interior angles are congruent, we know that all of the exterior angles are also congruent. Since a pentagon has 5 sides, we know that there are 5 congruent exterior angles, therefore:
5 * 2x = 360
10x = 360
x = 36°
The value of x in the Pentagon is 36.
Option D is the correct answer.
What is a Pentagon?A pentagon is a polygon that has five sides and five angles.
The sides and angles of a pentagon are not all equal unless it is a regular pentagon.
A regular pentagon has five equal sides and five equal angles.
We have,
The sum of the exterior angles of any polygon is 360 degrees.
Since a regular pentagon has 5 sides, the sum of its exterior angles is 360 degrees.
Each exterior angle of a regular pentagon has a measure of:
= 360 degrees / 5
= 72 degrees
We are given that one exterior angle of the pentagon has a measure of (2x) degrees.
2x = 72
Solving for x.
x = 36
Therefore,
The value of x is 36, and the measure of the given exterior angle.
= (2x)
= 72 degrees.
Thus,
The value of x is 36.
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For a five-year moving average, how many values will be lost at the beginning and end of the time series?
Answer:
2 Values
Step-by-step explanation:
For a five-year moving average, two values will be lost at the beginning and end of the time series.
This is because we add the first five elements and divide it by 5 to get the five year moving average. But the middle value of 5 is 2.5 which is greater than 2 so the result is placed against the third value. In this way the first two and last 2 values are lost.
For understanding let us compute the 5 year moving average as
a1= 1/5( y1+ y2+y3+ y4+y5)
a2= 1/5 ( y2+y3+ y4+y5+ y6)
a3 = 1/5(y3+ y4+y5+ y6+ y7)
a4= 1/5(y4+y5+ y6+ y7+ y8)
a5= 1/5(y5+ y6+ y7+y8+y9)
The average so obtained are placed opposite the middle year of each group.
So the values at the y1,y2 ,at the beginnign and at the end y8 and y9 are lost.
cells splits into 2 cells every hour. Write expression to find number of cells in 6 hours
Answer:
12 cells every hour.
Step-by-step explanation:
You would do 2 x 6
(the 2 is the cells per hour, and the 6 is the amount of hours)
Which equation is true for x = –6 and x = 2?
A.) 2x2 – 16x + 12 = 0
B.) 2x2 + 8x – 24 = 0
C.) 3x2 – 4x – 12 = 0
D.) 3x2 + 12x + 36 = 0
plsssss help its a timed question
Answer:
B.) 2x2 + 8x – 24 = 0
Step-by-step explanation:
For x= 2 and x= -6
Let's determine the equation of the solutions.
(X-2)(x+6)=0
X²+6x -2x -12= 0
X² +4x -12= 0
So the above is the real equation to the solution of x= 2 and x= -6
But in the options, we don't have something like that.
But let's try and multiply the solution will a positive or negative integer.
Lets start with +2
2(X² +4x -12= 0)
2x² + 8x -24 = 0
Yeah, option B is the answer
1 meter is equivalent to how many feet
From 12:00 midnight to 6:00am
Answer:
6 hours?
Step-by-step explanation:
12:00 0 hour(s)
1:00 1 hour(s)
2:00 2 hour(s)
3:00 3 hour(s)
4:00 4 hour(s)
5:00 5 hour(s)
6:00 6 hour(s)
Solve each equation.
1. 6k – 3 = 2k + 13
Answer:
4k=16
k=4
Step-by-step explanation:
please give 5 star i need it
Help Please!!!!! What is the absolute value of ∣∣2 1/3 ∣∣? Use this number line to determine the absolute value. Enter your answer in the box as a mixed number in simplest form.
Answer:
2 1/3
Step-by-step explanation:
i know because i did the test in k 12
An absolute value of |x| {modulus of x} is the value of a real number x. The absolute value of ||2 1/3|| is 2 1/3.
What is Absolute Value?An absolute value of |x| {modulus of x} is the value of a real number x, the value we get is always a non-negative number, for example, |-5| will give 5, and also, |5| will give 5 as well.
The absolute value of ||2 1/3|| is,
||2 1/3||
= |2 1/3|
= 2 1/3
Hence, The absolute value of ||2 1/3|| is 2 1/3.
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A ______ is a rule that pairs each element in one set with exactly one element from a second set.
Answer:
function
Step-by-step explanation:
A function is a rule that pairs each element in one set with exactly one element from a second set.
A function is a rule that pairs each element in one set with exactly one element from a second set.
What is Function?A function is a relation from a set A to a set B where the elements in set A only maps to one and only one image in set B. No elements in set A has more than one image in set B.
Function is a relation.
Let a set A = {1, 2, 3, ........} and set B = {1, 4, 9, .....}
Let f(x) = x² be the function.
f(1) = 1 , so 1 is mapped to 1
f(2) = 4, so 2 is mapped to 4.
...............
It goes on like this.
No element would map to more than one element.
1 will only map to 1, not to 4, 9, .......
Similarly, 2 will map to 4 only, not any other element.
But more than one element in set A can be mapped to same element in set B.
Suppose A = {......, -2, -1, 0, 1, 2, .......} and B = {1, 4, 9, .....}
We have f(1) = f(-1) = 1
Also, f(2) = f(-2) = 4
But this is a function.
Hence the rule is that pairs each element in one set with exactly one element from a second set.
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Which of the following is most likely the next step in the series
Answer:
C
Step-by-step explanation:
In the pattern, there are some similarities with the first three circles.
1. The number is on the blue half.
2. The halves switch spots, red-blue, blue-red, red-blue.
So, the next one should have the number on the blue half and the next pattern should be red-blue, blue-red, red-blue, and blue-red.
Which one has both the number on the blue half and the pattern blue-red?
C
Hoped this helped.
What is the value of x that satifies the equations 3(x+7)=-18
Answer:bruh
Step-by-step explanation:u really need that easy ahh question?
Answer:
x = -13
Step-by-step explanation:
3(x + 7) = -18
Divide both sides by 3.
x + 7 = -6
Subtract 7 from both sides.
x = -13
Which describes changes to the graph of w(x), when applying the transformation w(x-19)
A. A point (r,s) on the graph of w(x) moves to (r-19,s)
B. A point (r,s) on the graph W(x) moves to ( r, s-19)
C.a point (r , s) on the graph w(x) moves to (r+19,s)
D. A point (r,s) on the graph of w(x) moves to (r,s+19)
Answer:
Option (C)
Step-by-step explanation:
Graph of a function f(x) when shifted by 'a' unit to the right, the new equation of the function becomes as,
g(x) = f(x - a)
Then a point (p, q) on the function 'f' will become (p + a, q)
Following the same rule,
When of a function w(x) is shifted 19 units to the right, a point (r, s) on the graph will move to w[(r + 19), s].
Therefore, Option (C) will be the correct option.
Answer:
C) A point (r, s) on the graph of w(x) moves to (r + 19, s).
Step-by-step explanation:
got it right on edge :)
who was the first president of unitate state America
Answer:
George Washington
Step-by-step explanation:
[tex] 👋 [/tex] Hello! ☺️
R- George Washington
[tex]<marquee direction="left" scrollamount="2" height="100" width="150">Mynea04</marquee>[/tex]
A 20-person fraternity is making their weekend plans around 5 different parties in IV. Each brother will attend exactly one of the parties. Fraternity rules state that the fraternity must have a representative at each party. Assume that only the number of brothers that show up at a party is important, i.e. the brothers are indistinguishable. (a) How many different arrangements of plans are possible
Answer:
3876
Step-by-step explanation:
Given the following :
Fraternity members = 20
They are to attend 5 different parties in groups of 4
Meaning a group = 4 persons
Atleast one brother will attend exactly one of the parties. (the brothers are indistinguishable).
Then, exactly one brother at a party (20 - 1) = 19, since they are indistinguishable.
Group members are in 4's
19C4
From: nCr = n! /(n-r)! r!
19C4 = 19! / (19 - 4)! 4!
= 19! / 15! 4!
= (19 * 18 * 17 * 16) / (4 * 3 * 2)
= 93024 / 24
= 3876
The larger of two consecutive intergers is 7 greater than twice the smaller.find the intergers
Answer:
Smaller integer = -6
Larger integer = -5
Step-by-step explanation:
Let the two consecutive integers = [tex]x[/tex] and ([tex]x+1[/tex])
As per the given statement,
Larger i.e. ([tex]x+1[/tex]) is 7 greater than twice ([tex]2\times x[/tex]) the smaller integer.
To find:
The value of integers = ?
Solution:
First of all, let us learn about integers.
The integers are of the form (put in increasing order):
[tex]-\infty, ...., -3, -2,-1, 0, 1, 2, 3, ...., \infty[/tex]
and -1 > -2
So the consecutive integers are 1 greater than the smaller.
Therefore, the two integers can be [tex]x, x+1[/tex]
Now, writing the given condition in the form of an equation:
[tex]x+1=2x+7\\\Rightarrow 1-7=2x-x\\\Rightarrow -6=x\\\Rightarrow \bold{x=-6}[/tex]
So, the smaller integer = -6
Larger integer = -6+1 = -5
A rectangular tank that is 2048 ft cubed with a square base and open top is to be constructed of sheet steel of a given thickness. Find the dimensions of the tank with minimum weight.
Answer:
The box should have base 16ft by 16ft and height 8ft Therefore,dimensions are 16 ft by 16 ft by 8 ft
Step-by-step explanation:
We were given the volume of the tank as, 2048 cubic feet.
Form minimum weight, the surface area must be minimum.
Let the height be h and the lengths be x
the volume will be: V=x²h then substitute the value of volume, we have
2048=hx²
hence
h=2048/x²
Since the amount of material used is directly proportional to the surface area, then the material needs to be minimized by minimizing the surface area.
The surface area of the box described is
A=x²+4xh
Then substitute h into the Area equation we have
A= x² + 4x(2048/x²)
A= x² + 8192/x
We want to minimize
A
dA/dx = -8192/x² + 2 x= 0 for max or min
when dA/dx=0
dA/dx= 2x-8192/x²=0
2x=8192/x²
Hence
2x³=8192
x³=4096
x=₃√(4096)
X=16ft
Then h=2048/x²
h=2048/16²
h=8ft
The box should have base 16ft by 16ft and height 8ft
Hence the dimensions are 16 ft by 16 ft by 8 ft
A study of 200 computer service firms revealed these incomes after taxes: Income After Taxes Number of Firms Under $1 million 102 $1 million up to $20 million 61 $20 million or more 37 What is the probability that a particular firm selected has $1 million or more in income after taxes
Answer: 0.49
Step-by-step explanation:
given data:
no of computer services firms =200
no of firms under $1million = 102
no of firms between $1million to $20million = 61
no of firms $20million and above = 37
solution:
probability that a firm selected has 1$million or above.
P ( x ≥ $1million )
= 61/200 + 37/200
= 49/100
= 0.49
the probability of selecting with $1million or more in income taxes is 0.49%
Prove: (AUB) \ (AnB) =(A\B) u (B\A)
Answer:
Prove that (A-B) U (B-A) =(A U B) - (A intersection B). 2. See answers ... izvoru47 and 170 more users found this answer helpful
Which Greek geometer founded a philosophical society that devoted itself to the study of mathematics?'
Answer:
Pythagoras
Step-by-step explanation:
Pythagoras
Ray runs 30 feet north, 30 feet west, and then 30 feet south. Distance:Displacement:
Answer:
1 MILE
Step-by-step explanation:
if 6x is 6, then what is the square root of 4761 x
Answer:
the answer is 69
Step-by-step explanation:
you find the square root of 4761
Answer:
its 69
Step-by-step explanation:
Solve for x in the equation x squared + 2 x + 1 = 17.
Answer:
[tex]x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\[/tex]
Step-by-step explanation:
given equation
[tex]x^2 +2x +1 = 17[/tex]
subtracting 17 from both sides
[tex]x^2 +2x +1 = 17\\x^2 +2x +1 -17= 17-17\\x^2 +2x - 16 = 0\\[/tex]
the solution for quadratic equation
[tex]ax^2 + bx + c = 0[/tex] is given by
x = [tex]x = -b + \sqrt{b^2 - 4ac} /2a \\\\and \ \\-b - \sqrt{b^2 - 4ac} /2a[/tex]
________________________________
in our problem
a = 1
b = 2
c = -16
[tex]x =( -2 + \sqrt{2^2 - 4*1*-16}) /2*1 \\x =( -2 + \sqrt{4 + 64}) /2\\x =( -2 + \sqrt{68} )/2\\x = ( -2 + \sqrt{4*17} )/2\\x = ( -2 + 2\sqrt{17} )/2\\x = - 1 + \sqrt{17}\\and\\\\x = - 1 - \sqrt{17}\\[/tex]
thus value of x is
[tex]x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\[/tex]
x = negative 1 plus-or-minus StartRoot 17 EndRoot
A quality control manager is concerned about variability of the net weight of his company’s individual yogurt cups. To check the consistency, he takes a random sample of sixteen 6-ounce yogurt cups and finds the mean of the sampled weights to be 5.85 ounces and the sample standard deviation to be 0.2 ounce.
Requried:
a. Test the hypotheses H0: µ ≥ 6 Ha: µ < 6 at the 5% level of significance. Assume the population of yogurt-cup net weights is approximately normally distributed.
b. Based on the results of the test, will the manager be satisfied that the company is not under-filling its cups?
c. State the decision rule, the test statistic, and the manager’s decision.
Answer:
H₀ should be rejected, yogurt cups are under-filling, the manager has to check the process
Step-by-step explanation:
Normal distribution and n < 30. We must use t-student test.
a) If it is required to test H₀ μ >= 6 Hₐ μ < 6 is a one tail test (left-tail)
At α = 5 % α = 0,05 and n = 16 then degree of freedom is n -1
df = 15 find t(c) = - 1,753
μ = 5,85 and s = 0,2 ( sample mean and standard deviation respectevily)
T compute t(s)
t(s) = ( μ - μ₀ ) / s/√n
t(s) = ( 5,85 - 6 ) /0,2/√16
t(s) = - 0,15*4/0,2
t(s) = - 3
t(s) < t(c) -3 < - 1,753
Then t(s) is in the rejection region we reject H₀. There is enough evidence to claim the yogurt cups are under-filling.
Manager has to check on the process
Are these ratios equivalent 4:5 and 16:20 yes or no
Answer:
yes
Step-by-step explanation:
this is correct because if you multipy them both by 4 you get those answers .
4 x 4 = 16
5 x 4 = 20
The ratios 4:5 and 16:20 are equivalent to each other. Yes, the ratios are equal to 4: 5.
What are ratio and proportion?A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.
The equivalent is the expression that is in different forms but is equal to the same value.
The two ratios are given below.
4:5 and 16:20
Convert the ratios into their simplified form. Then the ratios are given as,
4:5 and 16:20
4:5 and 4:5
The ratios 4:5 and 16:20 are equivalent to each other. Yes, the ratios are equal to 4: 5.
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2(3w+9z) simplify it please .
Answer:
6w + 18z
Step-by-step explanation:
distribute the 2
2 x 3w = 6w
2 x 9z = 18 z
6w + 18z
Answer:
6w+18z
Step-by-step explanation:
What is the slope of the function y= 4x+ 6
Answer:
The answer is 4Step-by-step explanation:
Since the function is a linear function
Equation of a line is y = mx + c
where
m is the slope
c is the y intercept
From the question the equation is
y = 4x + 6
Comparing with the general form of equation above the slope of the function is
4Hope this helps you
What is the reciprocal of 100
Answer:
0.01
Steps:
The definition of "reciprocal" is simple. To find the reciprocal of any number, just calculate "1 ÷ (that number)." For a fraction, the reciprocal is just a different fraction, with the numbers "flipped" upside down (inverted). For instance, the reciprocal of 3/4 is 4/3
Answer:
It is 100
Step-by-step explanation: A reciprocal is is obtained by inverting a fraction.
100 is the same as 100/1
So the reciprocal of 100 is 1/100
The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to maintain a true mean temperature, μ, of 42°F, ideal for a certain type of German pilsner. The owner of the brewery does not agree with the refrigerator manufacturer, and claims he can prove that the true mean temperature is incorrect. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms.There is not sufficient evidence to support the claim that the mean temperature is different from 42 deg There is not sufficient evidence to support the claim that the mean temperature is equal to 42 deg There is sufficient evidence to support the claim that the mean temperature is different from 42 deg There is sufficient evidence to support the claim that the mean temperature is equal to 42deg
Answer:
There is sufficient evidence to support the claim that the mean temperature is different from 42 deg
Step-by-step explanation:
From the given information, we are being told that:
The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to maintain a true mean temperature, μ, of 42°F
i. e mean μ = 42
The owner of the brewery does not agree with the refrigerator manufacturer, and claims he can prove that the true mean temperature is incorrect.
Assuming that a hypothesis test of the claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms.
From above;
The null and the alternative hypothesis can be computed as:
[tex]\mathbf{H_o : \mu = 42} \\ \\ \mathbf {H_1 : \mu \neq 42}[/tex]
Here , the hypothesis test of the claim is the alternative hypothesis.
The conclusion based on the decision rule: is to reject the null hypothesis
∴
The conclusion in non technical terms is that :
There is sufficient evidence to support the claim that the mean temperature is different from 42 deg
MARKING BRAINLIST QUESTION BELOW PLSSSSS PLSSSS HELP
Answer:
1. 75 feet per hour
2. [tex]\frac{15}{7}[/tex] pounds per year
Step-by-step explanation:
The rate of change can be represented as the slope of the equation.
The slope of any relationship is rise over run.
In number 1, we can see that the climber gained 300 feet in 4 hours. This means that the rate of change will be [tex]300\div4=75[/tex] feet per hour.
In number 2, we can see that the teacher gained 45 pounds in a timeframe of 21 years. This means that the slope is [tex]\frac{45}{21}[/tex], which can be simplified down to [tex]\frac{15}{7}[/tex]l
Hope this helped!
I will Mark you as brainliest if you show your work
Answer:
16 miles long to work it would be 0 miles shorter
Step-by-step explanation:
8+8 is 16
if the road was just one street it would still be the same distance
I hope this helps. THIS MIGHT BE WRONG though if someone say something else, take a good look at their answer too because the way I did it, seems like it's a little too simple.
Answer: The distance will be about 11 miles . 2) The man's one way-trip will be 5 miles shorter.
Step-by-step explanation:
If the man drove east by 8 miles and North by 8 miles and we want to determine the distance that is directly from east to north then we will use the Pythagorean Theorem solve for that distance.
Now since we are solving for the distance directly from his home to work we will be looking for the hypotenuse in this case.
a^2 + b^2 =c^2 where c is the hypotenuse
8^2 + 8^2 =c^2
64 +64 = c^2
c= [tex]\sqrt{128}[/tex]
c = 11.31
In this case the distance from his home directly to his work will be about 11 miles.
2. To find out how much shorter the man will travel ,add the east and north distance and subtract 11.31 from it.
8 + 8 = 16
16 - 11.31 = 4.69
how to solve and answer, pls and thx
Answer:
D
Step-by-step explanation:
first of all we need to solve the inequalities
[tex]3-x\geq 2\\\\3-x+x\geq 2+x\\\\3\geq2+x \\\\3-2\geq 2-2+x\\\\1\geq x\\\\x\leq 1[/tex] (-∞,1] or ]-∞,1]
the second inequality is
[tex]4x+2\geq 10\\\\4x+2-2\geq 10-2\\\\4x\geq 8\\\\\frac{4x}{4}\geq \frac{8}{4} \\\\x\geq 2[/tex] [2,∞) or [2,∞[
so the answer is D
Answer: D
Step-by-step explanation:
To graph the inequalities on the number line, let's first solve them.
3-x≥2 [subtract both sides by 3]
-x≥-1 [divide both sides by -1, remember to flip inequalities]
x≤1
---------------------------------------------------------------------------------------------
4x+2≥10 [subtract both sides by 2]
4x≥8 [divide both sides by 4]
x≥2
---------------------------------------------------------------------------------------------
Now, we have our inequalities, x≤1 and x≥2. Notice that both inequalities are greater/less than or equal to. The "or equal to" part means that x is equal to 1 and 2. Therefore, when graphed, it is a closed circle. This let's us automatically eliminate B and C because they have open circles.
For x≤1, we know that x is going to be 1 and below, meaning it starts at 1 and travels left where it gets smaller and smaller. This tells us that the answer is D, but let's check to be sure.
For x≥2, we know that x is going to be greater than 2. This let's us know that the arrow will be pointing to the right, where the numbers are getting bigger and bigger. Knowing this, we can confirm that D is the correct answer.