Answer:
m<1 = 119°
Step-by-step explanation:
The entire figure is an irregular hexagon, a 6-sided polygon.
The sum of the measures of the angles of a polygon with n sides is
(n - 2)180°
For a hexagon, n = 6.
(6 - 2)180° = 4(180°) = 720°
All angle measures of the polygon are known except for the measure of <1.
m<1 + (37° + 113°) + 90° + 147° + (80° + 44°) + 90° = 720°
m<1 + 601° = 720°
m<1 = 119°
find three points that solve the equation X - 3y = -6
Given the linear equation:
\(x-3y=-6\)The single linear equation above contains two variables. Hence, there is no unique solution but infinitely many pairs of solutions. For every value of x, there is a value for y.
Three points that solve the equation would be:
Solution 1
Put x = -6 into the equation
\(\begin{gathered} -6-3y=-6 \\ -3y=-6+6 \\ \frac{-3y}{-3}=\frac{0}{-3} \\ y=0 \end{gathered}\)Solution 2
Put x = 0 into the equation
\(\begin{gathered} 0-3y=-6 \\ -3y=-6 \\ \frac{-3y}{-3}=\frac{-6}{-3} \\ y=2 \end{gathered}\)Solution 3
Put x = 12 into the equation
\(\begin{gathered} 12-3y=-6 \\ -3y=-6-12 \\ -3y=-18 \\ \frac{-3y}{-3}=\frac{-18}{-3} \\ y=6 \end{gathered}\)Therefore, three points that solve the linear equation as shown above are:
\(\begin{gathered} (x,y)=(-6,0) \\ (x,y)=(0,2) \\ (x,y)=(12,6) \end{gathered}\)
if x varies directly as y, and x=9 when y=3, find x when y=12
X varies directly as y , that x = 9 when y = 3,the value of x when y = 12 by the constant of Variation , value of x is 36.
X varies directly as y, it means that there is a constant ratio between x and y. We can express this relationship using the formula:
x = ky
where k is the constant of variation.
To find the value of k, we can use the given information that x = 9 when y = 3. Substituting these values into the formula, we have:
9 = k * 3
Solving for k, we divide both sides of the equation by 3:
k = 9/3
k = 3
Now that we have the value of k, we can find x when y = 12 by substituting it into the formula:
x = 3 * 12
x = 36
Therefore, when y = 12, the corresponding value of x is 36.
if x varies directly as y and we are given that x = 9 when y = 3, we can find the value of x when y = 12 by determining the constant of variation (k) and using the formula x = ky. In this case, the constant of variation is 3, so when y = 12, x equals 36.
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The angle represents the phase shift, determined by the initial conditions of the experiment or the position of the weight at t = 0. If the weight is at its maximum positive position (weight is above equilibrium) at t = 0, then = 0. If the weight is at its maximum negative position (spring is stretched and weight is below equilibrium) at t = 0, then . If the weight is traveling in the negative direction and passing through equilibrium at t = 0, then . In the response box, describe the initial condition of our experiment; specifically, describe the position of the weight and the direction in which it was traveling.
Answer:
the weight was approaching the equilibrium position from the positive direction. The weight was on its way down, with the spring stretching
Step-by-step explanation:
This is the word for word answer but be careful and don´t copy it exactly!! paraphrase the answer using your own words
Help me pleaseeeeeeee
Answer:
x = 29°
y = 45°
Step-by-step explanation:
Cuál es la cantidad de divisores en 2121?
Answer:
2121 tiene 8 divisores respuesta B
help? (i mark brainlist)
what is this please help
Answer:
-20
Step-by-step explanation:
Simplify the real and imaginary parts of the expression.
5.3 MATHEMATICS HOLIDAY PACKAGE-TERM 2(2023) Instructions: Attempt ALL items 1. Your family has seven siblings; peter, John, Sarah, Joy, Ali, Mary and Ivan. There is an interval of 2 years between the ages of the children from Ivan to peter. Ivan is three years old. Task: Using an arrow diagram, explain the information about your family.
In 2000 a particular school district had a total of 7982 students enrolled in school. At this time, the percent of white students who were exposed to school poverty3 was 30% whereas this was 34.5% for Black students. The number of white students in this district in 2000 was 5184 and the number of Black students was 1035. (Note these are the deomgraphics for students who identify as one of these two races alone.) In 2015, the number of students enrolled in school in this district increased to 11977. The percent of white students exposed to school poverty increased to 47.8% and the percent for Black students increased to 76.1%. The number of white students in this district in 2015 was 7306 and the number of Black students was 2037.
Suppose we want to determine if, relative to the increased size of the school district from 2000 to 2015, is the difference between the proportion of white students exposed to poverty likely due to something besides chance. Perform an appropriate statistical hypothesis test at an α = 0.05 confidence level to answer this question. Show all your work and interpret your conclusion within the context of the problem and the appropriateness of the required assumptions.
Perform the same analysis as you did but this time to determine if there is statistical evidence of an actual difference between the proportion of Black students exposed to poverty.
Answer:
Part A
There is sufficient statistical evidence to suggest that the difference between the proportion of White students exposed to poverty is likely due to something beside chance
Part B
There is sufficient statistical evidence to suggest that the difference between the proportion of Black students exposed to poverty is likely due to something beside chance
Step-by-step explanation:
Part A
The given data are;
The percent of White students exposed to school poverty in 2,000, \(\hat p_1\) = 30%
The number of White students in the district in 2,000, n₁ = 5184
The percent of White students exposed to school poverty in 2,015, \(\hat p_2\) = 47.8%
The number of White students in the district in 2,015, n₂ = 7,306
The significant level, α = 0.05
The confidence level = 1 - α/2 = 1 - 0.05/2 = 0.975
The critical z at 0.975 confidence level, \(Z_c\) = 1.96
The null hypothesis, H₀; \(\hat p_1\) = \(\hat p_2\)
The null hypothesis, H₀; \(\hat p_1\) ≠ \(\hat p_2\)
The Z test is given as follows;
\(Z=\dfrac{\hat{p}_1-\hat{p}_2}{\sqrt{\hat{p}(1-\hat{p})\left (\dfrac{1}{n_{1}}+\dfrac{1}{n_{2}} \right )}}\)
Therefore, we have;
\(Z=\dfrac{0.3 - 0.478}{\sqrt{0.3 \cdot (1-0.3)\left (\dfrac{1}{5184}+\dfrac{1}{7306} \right )}} = -21.3894\)
Given that the actual Z is much larger than the critical Z, we reject the null hypothesis that the difference between the proportion of White students is likely due to something other than chance
Part B, we have;
The percent of black students exposed to school poverty in 2,000, \(\hat p_1\) = 34.5%
The number of black students in the district in 2,000, n₁ = 1035
The percent of black students in the district in 2,015, \(\hat p_2\) = 76.1%
The number of black students in the district in 2,000, n₁ = 2037
\(Z=\dfrac{0.345 - 0.761}{\sqrt{0.345 \cdot (1-0.35)\left (\dfrac{1}{1,035}+\dfrac{1}{2,037} \right )}} =-22,925\)
Similarly, due to the large value of Z compared to \(Z_c\), there must be other variables responsible for the difference in proportion
Suppose that events F and S are conditional independent events given D and ~D respectively with p(F|D)=p(S|D)=0.9, p(~F|~D)=p(~S|~D)=0.9, and p(D)=0.2. Find p(D|F∩S).
P(D|FS)=.9529
If F and S are conditionally independent given D and ~D, then
P(FSD)= P(D)P(F|D)P(S|D)
P(FS~D) = P(~D)P(F|~D)P(S|~D)
P(F|~D) = 1 - P(~F|~D)
P(S|~D) = 1 - P(~S|~D)
P(~D) = 1 - P(D)
P(D|FS) = P(FSD)/(P(FSD) + P(FS~D))
P(F|D) = P(S|D) = .9
P(~F|~D) = P(~S|~D) = .9
P(D = .2)
Then, P(FSD) = P(D)P(F|D)P(S|D) = .2*.9*.9 = .162
P(FS~D) = P(~D)P(F|~D)P(S|~D) = (1 - .2)(1 - .9)(1 - .9)= .008
P(D|FS) = P(FSD)/(P(FSD) + P(FS~D)) = .162/(.162+.008) = 162/170=81/85 = .9529
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The table lists several points that form a line on a coordinate plane.
x y
4 6
12 8
16 9
28 12
Based on the information in the table, what are the y-intercept and slope of the line described by these points?
The y-intercept and slope of the line described by these points will be y = (1/4)x + 5.
What is the equation of a line passing through two points?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
Let the equation of the line pass through (x₁, y₁) and (x₂, y₂). Then the equation of the line is given as,
\(\rm (y - y_2) = \left (\dfrac{y_2 - y_1}{x_2 - x_1} \right ) (x - x_2)\)
Taking only two points from the table will be (4, 6) and (12, 8). Then the equation of the line is given as,
(y - 6) = [(8 - 6) / (12 - 4)](x - 4)
y - 6 = 1/4(x - 4)
y - 6 = (1/4) x - 1
y = (1/4)x + 5
The y-intercept and slope of the line described by these points will be y = (1/4)x + 5.
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What is an equation of the line that passes through the points (4, -1) and
(-8, –7)?
Answer:
y=1/2x-3
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-7-(-1))/(-8-4)
m=(-7+1)/-12
m=-6/-12
m=1/2
y-y1=m(x-x1)
y-(-1)=1/2(x-4)
y+1=1/2x-4/2
y=1/2x-2-1
y=1/2x-3
A ball is thrown from an initial height of 7 feet with an initial upward velocity of 37 ft/s. The ball's height h (in feet) after t seconds is given by the following.
h=7+37t-16t²
Find all values of t for which the ball's height is 27 feet.
round your answer(s) to the nearest hundredth.
Answer:
t = 0.86 or t = 1.45
Step-by-step explanation:
A florist currently makes a profit of $20 on each of her celebration bouquets and sells an average of 30 bouquets every week. She noticed that when she reduces the price such that she earns $1 less in profit from each bouquet, she then sells three more bouquets per week. The relationship between her weekly profit, P(x), after x one-dollar decreases is shown in the graph below.
A graph for p of x is a downward open parabola with its vertex at (5, 725) and passes through the points (negative 10, 0), and (20, 0).
Use the graph to complete each statement about this situation.
The maximum profit the florist will earn from selling celebration bouquets is $.
The florist will break-even after one-dollar decreases.
The interval of the number of one-dollar decreases for which the florist makes a profit from celebration bouquets is ( , ).
Answer:
The maximum profit the florist will earn from selling celebration bouquets is $725.
The florist will break-even after one-dollar decreases when her profit is zero. From the graph, this occurs at x = 10. So the florist will break-even after 10 one-dollar decreases.
The interval of the number of one-dollar decreases for which the florist makes a profit from celebration bouquets is (0, 10). This is because the profit is positive for values of x between 0 and 10, and becomes negative after 10.
Step-by-step explanation:
Pls help asap thank you
- 2/5(20x -15) can you plz help me
Answer:
Step-by-step explanation:
First I just made -2/5 into a decimal because I like to work with decimals better (which equals -.4)
Then I times everything separately in the parenthesis and got -8x+6
Next you move the 6 over to the left side of the equals sign which would make the equation be -6 = -8x
Lastly you divide the -8 from -6 and you get X = 3/4
jalen drew a rectangle with a perimeter of 20 inches. the smaller side measured 3 inches. jalen said the longer side of the rectangle had to be 7 inches. is jalen correct?
Yes, Jalen is correct because the rectangle has a perimeter of 20 inches with the smaller side measuring 3 inches and the longer side of the rectangle had to be 7 inches.
How to calculate the perimeter of a rectangle?In Mathematics and Geometry, the perimeter of a rectangle can be calculated by using this mathematical equation (formula);
P = 2(L + W)
Where:
P represent the perimeter of a rectangle.W represent the width of a rectangle.L represent the length of a rectangle.By substituting the given side lengths into the formula for the perimeter of a rectangle, we have the following;
P = 2(3 + 7)
20 = 2(10)
20 = 20 (True).
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Instructions: Identify the key features of the following graph. If the Domain is all real numbers, type in 'All Real" into the Domain box
Key features for the graph given in the problem will be-:Vertex (-1, -5), Axis of symmetry=> (x = -1), y-intercept (0,-3), Minimum=> (y=-5), Domain=> (All Real), Range=>( y >= -5)
How to determine the key features?Refering to the graph given in the problem(refer image attached).The key features of the graph can be given as:
Vertex: The graph's vertex is at (-1, -5), which indicates that the graph extends upwards (because y = -5 is the minimal value).A vertical line at x = -1 serves as the graph's axis of symmetry. The graph is split into two symmetrical sections by this line.Y-intercept: The graph's y-intercept is at (0, -3), which indicates that here is where the graph and y-axis connect.The graph has a minimum point at y = -5, which is also the vertex of the graph and the lowest point on it.The graph's domain is set as "All Real" or "(-, )", which signifies that it spans all real values on the x-axis horizontally.Range: The graph's range is defined as y -5, which indicates that it climbs vertically from -5 and above on the y-axis.The graph has an upward-opening form, an axis of symmetry at x = -1, a y-intercept at (0, -3), a minimum point at y = -5 (which is also the vertex), and it spans all real numbers on the x-axis (domain) while being larger than or equal to -5 on the y-axis (range).
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what is the maths formula for area
Answer:
Quick internet search:
324 ft
Flagpole
shadow
40 ft
The diagram above shows a 40-foot flagpole and its shadow in relation to a nearby building that is
324 feet tall. If the flagpole's shadow is 50% longer than the flagpole itself, how far is the
building from the flagpole?
The distance between the flagpole and the building is the number of feet between them
The building is 162 feet from the flagpole
How to determine the distanceThe given parameters are:
Flagpole = 40 feetBuilding Shadow = 324 feetThe flagpole's shadow is 50% longer than the flagpole.
So, the length (l) of the flagpole's shadow is:
\(l = 40 * (1 + 50\%)\)
\(l = 60\)
The length of the building's shadow (d) is then calculated as:
\(60 : 40 =d : 324\)
Express as fraction
\(\frac{60}{40}= \frac{d}{324}\)
\(1.50 = \frac{d}{324}\)
Solve for d
\(d = 1.50 * 324\)
\(d = 486\)
The distance (x) of the building from the flagpole is then calculated as:
\(x = 486 - 324\)
\(x = 162\)
Hence, the building is 162 feet from the flagpole
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Find the distance from point X to line p.
Answer:
\(\sf 2\sqrt{17}\)
Step-by-step explanation:
To find the distance of a line using distance formula:
The line from point X intersect the line p at (0 , -3).
( -2 , 5) ⇒ x₁ = -2 & y₁ = 5
(0 , -3) ⇒ x₂ = 0 & y₂ = -3
\(\boxed{\bf Distance = \sqrt{(x_1-x_2)^2 + (y_1-y_2)^2}}\)
\(\sf = \sqrt{-2-0)^2+(5-[-3])^2}\\\\=\sqrt{(-2-0)^2 + (5+3)^2}\\\\=\sqrt{(-2)^2+(8)^2}\\\\=\sqrt{4+64}\\\\=\sqrt{68}\\\\=\sqrt{2*2*17}\\\\=2\sqrt{17}\)
Calcular los 3/5 de los 2/3 de las 3/4 de 560
For the fractions, the calculation of 3/5 of 2/3 of 3/4 of 560 is equal to 168.
How to solve fractions?To calculate 3/5 of 2/3 of 3/4 of 560, break it down step by step:
Step 1: Calculate 3/4 of 560:
3/4 × 560 = (3 × 560) / 4 = 1680 / 4 = 420
Step 2: Calculate 2/3 of the result from Step 1:
2/3 × 420 = (2 × 420) / 3 = 840 / 3 = 280
Step 3: Calculate 3/5 of the result from Step 2:
3/5 × 280 = (3 × 280) / 5 = 840 / 5 = 168
Therefore, 3/5 of 2/3 of 3/4 of 560 is equal to 168.
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Quick please helppp i need to figure out if they are similar, not similar, or not enough information
Answer:
∆OPQ is not similar to ∆RST
Step-by-step explanation:
It is shown that ∆OPQ is an equilateral triangle but ∆RST is a right-angled triangle so they have different angles and sides
Answer:
not similar because ∆RST has a 90° angle and ∆OPQ does not have a 90° angle
Mariyah bought 5 yards of fabric and a spool of thread for $22.75. If the spool of thread cost
$1.50, how much did the fabric cost per yard?
Answer:
$4.25
Step-by-step explanation:
Subtract the cost of the spool of thread from the total price:
22.75 - 1.50
= 21.25
Then, divide this by 5 to find the cost of fabric per yard:
= 4.25
So, the cost of the fabric per yard is $4.25
Answer:
Step-by-step
$22.75-$1.50 to get the 5 yards cost
=$21.25
21.25 / 5 yards to get per yard cost
=$4.25 / yard
How many degrees are in a 29 sided figure?
Answer:
4860 degrees
Step-by-step explanation:
Triangle=180
Square=360.
The pattern: increase by 180.
Triangle=3 sides.
29-3 is 26.
26*180+180
4860.
Hope this helps :D
.54 oz of premium walnuts costs $12.95. what is cost per ounce
The cost per ounce of the premium walnut is $0. 23
What is proportion?To determine the value of the cost, we need to note that proportion is simply described as the comparison of numbers such that they are made equal to another.
From the information given, we have that;
54 ounces of premium walnuts costs $12.95
This is represented as;
54 ounces = $12. 95
Then 1 = x
cross multiply the values, we get;
x = $12.95/54
Divide the values, we get;
x = $0. 23
Hence, the value is $0. 23 per premium walnut
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Judy scored 30 points in the champion game. She scored three 3-point baskets and five 1-point baskets. How many 2-point baskets did she score?
Answer:
eight two point baskets
Step-by-step explanation:
3 points = 9 points
1 points = 5 points
9+5= 14
30-14= 16
= 16/2
=8
Which equation shows a correct strategy and product for the expression shown? 0.6x0.9
Answer:
.19
Step-by-step explanation:
plleaasseee hurrry need help now
Answer:
107º
Step-by-step explanation:
Okay, if 135 is adjacent to an ungiven side, then to find that, you subtract 135 from 180.
180 - 135 = 45
So the other side is 45. Now we find the last unknown given side, and since we know 180 degrees is the sum of the degrees in a triangle, we do:
28 + 45 + x = 180
73 + x = 180
Subtract 73 on both sides you get,
x = 107.
Measure DEF is 107.
Find the slope and the y-intercept of the line. 7x-2y = -10 simplest form
Answer:
7/2 is the slope and 5 is the y-intercept
Step-by-step explanation:
Slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.
7x-2y=-10
subtract 7x on both sides
-2y=-7x-10
divide by -2 on both sides
y=(7/2)x+5
7/2 is the slope and 5 is the y-intercept.