Answer:
20 square units
Step-by-step explanation:
Area of trapezium = ½ X (sum of parallel sides) X distance between them.
length of top side = √[(-1-2)²+(3-2)²] = √10
length of bottom side = √[(-5 - 4)² + (1 - -2)²] = √90
distance between them = √[(-2 - -1)² + (0 - 3)²] = √10
area of trapezium = 1/2 X (√10 + √90) X √10
= 20 square units
ZABC is bisected by ray BD. m2 ABC = 80°. What is mZ ABD?
OA. 50⁰
OB. 40°
O C. 100⁰
OD. 75⁰
The require angle, angle ABD = 40 degrees
What do you mean by angle bisector ?A bisector has two primary characteristics:
Any point along an angle's bisector is equally - spaced from the angle's sides.
The angle bisector divides the other side of a triangle in proportion to the other two sides.
Given : ∠ ABC is bisected by a ray BD
∠ ABC = 80°
Since the angle ABC is being bisected this means that the angles are equal
Let the bisected angle be x
thus we can write it mathematically as
x + x = 80
2x = 80
dividing both the sides as 2 we would get
x = 40 degrees
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NEED HELP ASAP ASAP!!!!!
12
11
84
12
84
Scale Factor=
x =
Answer:
Step-by-step explanation:
To find the scale factor, we can compare the corresponding sides of the two similar figures:
Scale factor = (length of corresponding side in larger figure) / (length of corresponding side in smaller figure)
Let's compare the first and fourth columns of numbers:
Scale factor = 12 / 12 = 1
Now let's compare the second and fifth columns:
Scale factor = 84 / 11 = 7.636363...
Since the two scale factors are different, we can say that the figures are not perfectly similar.
Jacque needs to buy some pizzas for a party at her office. She’s ordering from a restaurant that charges a $7.50 delivery fee and $14 per pizza. She wants to buy as many pizzas as she can, and she also needs to keep the delivery fee plus the cost of the pizzas under $60.
Each pizza is cut into 8 slices, and she wonders how many total slices she can afford.
Q: What is the largest number of slices that Jacque can afford?
Lets answer the information by making it look like a budget subtraction:
60 = Total
1. Remove the delivery cost, so you can leave the rest of the budget for your pizzas.
60 - 7.50 = 52.50
2. Now, subtract the cost of pizzas multiple times until you reach it to where you dont have enough for another pizza.
52.50 - 14 = 38.50 Pizza 1
38.50 - 14 = 24.50 Pizza 2
24.50 - 14 = 10.50 Pizza 3
Now, theres not enough to buy another.
So, we know that Jacque can only afford 3 pizzas, but she need to calculate the number of slices.
3. Multiply the number of slices by the number of pizzas.
8 x 3 = 24
So, the largest number is 24 slices.
Answer:
60
Step-by-step explanation:
Class A has 25 pupils and class B has 28 pupils.
Both classes sit the same maths test.
The mean score for class A is 69.
The mean score for both classes is 41.
What is the mean score in the maths test for class B?
Please helppp
Answer:
I think it will be less than 69 because the tozal mean is 41 while of A is 69 mean the values has decreased
Find the measure of of angle yvx
a. 39 degree
b. 52 degree
c. 59 degree
d. 49 degree
Step-by-step explanation:
angle XUV+angle XVY+angle YVZ+angle ZVW=180°
43+angle XVY+52°+36°=180°
angle XVY=180-131
angle XVY=49°
The required measure of angle YVX is 49 degrees. Option D is correct.
What are the supplementary angles?Supplementary angles are a pair of angles that add up to 180 degrees. In other words, if two angles are supplementary, the sum of their measures is equal to 180 degrees.
For example, if one angle measures 120 degrees, the other angle that is supplementary to it measures 60 degrees, since 120 + 60 = 180.
Here,
We can use the angle sum property of supplymentary angles, which states that the sum of the measures of the angles is 180 degrees.
We have:
43 + 52 + 36 + angle YVX = 180
131 + angle YVX = 180
Subtracting 131 from both sides, we get:
angle YVX = 49
Therefore, the measure of angle YVX is 49 degrees. Option D is correct.
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Write this number in standard form: eight thousand seventy-two and eighty-four thousandths.
Answer:
8,072.084
Step-by-step explanation:
What are the three important elements of group discussion?
Purpose,Planning,Participation are the three important elements of group discussion.
What are the three important elements of group discussion?Goal setting up a group conversation has a goal as one of its initial elements. To reach an acceptable conclusion during a group discussion is the goal. The best method for deciding the next step is typically a group discussion.
A key component is preparation. The discussion's goal is decided by its participants. There cannot be just any expression of views in a group debate that seeks to reach a decision. It is important to structure the conversation so that each move brings the group one step closer to the desired outcome. Participation.
Any group conversation is only as good as its participants' participation. It is necessary to bring out group participants. There shouldn't be a few people that control it. Nevertheless, most groups have this tendency.
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13.) The ratio of guppies to goldfish in an aquarium is 1 to 2. There are 4 guppies.
How many goldfish are there?
Answer:
8 Goldfishes
Step-by-step explanation:
This Question tests on the concept of Ratio Conversion.
RatiosRatios are proportional numbers that has a specific value assigned to their corresponding number of units.
Example: Max 3 : 4 Tyler
Max has 45 cards, 1 unit = 45 ÷ 3 = 15 cards, which means Tyler has 4 units = 15 × 4 = 60 cards.
ApplicationIn this question , we know that the ratio:
Guppies 1 : 2 Goldfish
We know that there are 4 guppies.
Which means:
1 Unit = 4
Therefore , number of Goldfish = 2 units = 2 × 4 = 8
A piece of wire 20 cm long is bent in the shape of a triangle with interior angles 30, 60 and 90 . Find the length of the hypotenuse, giving your answer in surd form with rational denominator
Answer:
(60 - 20√3) / 3
Step-by-step explanation:
In a right-angled triangle, a ² + b ² = c ²
call the length of the opposite x and the adjacent x√3.
A 30, 60, 90 triangle takes the form x² + (x√3 )²
= x² + 3x²
= 4x² = hypotenuse²
hypotenuse = 2x.
so 2x + x + x√3 = 20
3x + x√3 = 20
x (3 + √3) = 20
x = 20 ÷ (3 + √3)
hypotenuse = 2x.
2x = 2 X [20 ÷ (3 + √3) ]
= 40 ÷ (3 + √3)
= [ 40 ÷ (3 + √3)] X [(3 - √3) ÷ (3 - √3)]
= (120 - 40√3) ÷ (9 - 3)
= (120 - 40√3) ÷ 6
= (60/3) ÷ [(20√3) / 3]
= (60 - 20√3) / 3
The length of the hypotenuse (side "c") is 20 cm.
Let's denote the sides of the triangle as follows:
Let "a" be the side opposite the 30-degree angle.
Let "b" be the side opposite the 60-degree angle.
Let "c" be the hypotenuse opposite the 90-degree angle.
We know that the sum of the interior angles of any triangle is 180 degrees, so:
30 + 60 + 90 = 180
Now, let's use the Law of Sines to relate the side lengths and the angles of the triangle:
a/sin(30) = b/sin(60) = c/sin(90)
Since sin(30) = 1/2, sin(60) = √3/2, and sin(90) = 1, we can rewrite the equation as:
a/(1/2) = b/(√3/2) = c/1
Now, let's simplify:
a/(1/2) = 2a
b/(√3/2) = 2b/√3
c/1 = c
The piece of wire is 20 cm long, and this forms the perimeter of the triangle:
a + b + c = 20
Now, let's substitute the simplified expressions into the perimeter equation:
2a + 2b/√3 + c = 20
To make the denominator rational, we can multiply the equation by √3:
2√3a + 2b + √3c = 20√3
Now, we have two equations:
2√3a + 2b + √3c = 20√3
2a + 2b + c = 20
Let's use these equations to solve for "c." Subtract the second equation from the first:
(2√3a + 2b + √3c) - (2a + 2b + c) = 20√3 - 20
Simplifying:
(2√3a - 2a) + (√3c - c) = 20√3 - 20
Factor out "a" and "c":
2a(√3 - 1) + c(√3 - 1) = 20√3 - 20
Now, divide both sides by (√3 - 1):
c = (20√3 - 20) / (√3 - 1)
To rationalize the denominator, we need to multiply the numerator and denominator by the conjugate of (√3 - 1), which is (√3 + 1):
c = [(20√3 - 20) / (√3 - 1)] * [(√3 + 1) / (√3 + 1)]
c = [20√3(√3 + 1) - 20(√3 + 1)] / [(√3 - 1)(√3 + 1)]
c = (20√3(√3) + 20√3 - 20√3 - 20) / (3 - 1)
c = (60 - 20) / 2
c = 40 / 2
c = 20
Therefore, the length of the hypotenuse (side "c") is 20 cm.
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constant of proportionality the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality.
In a proportional relationship between two quantities, the constant of proportionality, often denoted by the letter "k," represents the value that relates the two quantities. The equation y = kx is the standard form for expressing a proportional relationship, where "y" and "x" are the variables representing the two quantities.
Here's a breakdown of the components in the equation:
y: Represents the dependent variable, which is the quantity that depends on the other variable. It is usually the output or the variable being measured.
x: Represents the independent variable, which is the quantity that determines or influences the other variable. It is typically the input or the variable being controlled.
k: Represents the constant of proportionality. It indicates the ratio between the values of y and x. For any given value of x, multiplying it by k will give you the corresponding value of y.
The constant of proportionality, k, is specific to the particular proportional relationship being considered. It remains constant as long as the relationship between x and y remains proportional. If the relationship is linear, k also represents the slope of the line.
For example, if we have a proportional relationship between the distance traveled, y, and the time taken, x, with a constant of proportionality, k = 60 (representing 60 miles per hour), the equation would be y = 60x. This equation implies that for each unit increase in x (in hours), y (in miles) will increase by 60 units.
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please do only part B in 45 minutes please urgently... I'll give you up thumb definitely2. Consider the following two-period model of the current account: U = (1-8)In(C1) + Bln(C2)
C1 = Y1
-
CA1, C2 = Y2+ (1+r)CA1
CA1+CA20
where C is consumption, CA is the current account balance, and r is the given world interest rate. Y1, Y2 > 0 are given endowments in periods 1 and 2 and 0 < < 1 is a known parameter.
(a) Derive the lifetime budget constraint C1+2 = Y1+12, and find analytical solutions for C1, C2, CA1, CA2. Show that the home country runs a current account deficit in period 1 if and only if where A is the autarky interest rate.
pA >r,
(b) We now set Y1 1, Y2 = 2, r = 0.1, B
=
0.5. Find numerical
[10%]
U = (1-3) + B
Cl-o 1-6
1-0
solutions for C1, C2, CA1, CA2. How do the solutions differ if where σ = 2? Comment on the results. [10%]
In this two-period model of the current account, the utility function U is given by U = (1-θ)ln(C1) + Bln(C2), where C1 and C2 represent consumption levels, CA1 and CA2 are the current account balances, r is the world interest rate, Y1 and Y2 are endowments in periods 1 and 2, and θ is a known parameter between 0 and 1.
(a) To derive the lifetime budget constraint, we add the present value of future income to the current period income: C1 + (1+r)C2 = Y1 + (1+r)Y2. This equation represents the constraint on total consumption over the two periods. By substituting the given expressions for C1 and C2 into the constraint, we can solve for C1, C2, CA1, and CA2 analytically:
C1 = Y1 - CA1
C2 = Y2 + (1+r)CA1 - CA2
CA1 = (1-θ)Y1 - C1
CA2 = (1-θ)(1+r)Y1 + θY2 - C2
To show that the home country runs a current account deficit in period 1 if and only if pA > r, where pA is the autarky interest rate, we need to compare the autarky interest rate with the world interest rate. If the autarky interest rate is greater than the world interest rate, the home country will experience a current account deficit in period 1.
It's important to note that the numerical solutions and interpretations depend on the specific values and equations given in the question. Any errors or omissions in the question may affect the accuracy of the response.
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Write a recursive sequence that represents the sequence defined by the following
explicit formula:
an=10+ 4(n+1)
Answer:
Step-by-step explanation:
To write a recursive sequence that represents the sequence defined by the explicit formula an = 10 + 4(n + 1), we need to find a recursive formula that relates each term in the sequence to the previous term.
We can start by noticing that the explicit formula for the first term (a1) is:
a1 = 10 + 4(1 + 1) = 18
To find the next term (a2), we substitute n = 2 into the explicit formula:
a2 = 10 + 4(2 + 1) = 22
To find the third term (a3), we substitute n = 3 into the explicit formula:
a3 = 10 + 4(3 + 1) = 26
We can see that each term in the sequence is obtained by adding 4 to the previous term. Therefore, we can define the recursive formula as follows:
a1 = 18
an+1 = an + 4
This recursive formula states that the first term of the sequence is 18, and that each subsequent term is obtained by adding 4 to the previous term. This recursive formula generates the same sequence as the original explicit formula, and can be used to calculate any term in the sequence.
Savannah shoped 98 glass bowls to her mother. If she divided the bowls equally among
8 boxes, how many bowls did Savannah put in each box?
The temperature outside is currently 10°F. It will fall at a constant rate of 3°F per hour. Which temperature will it be in 4 hours?
Answer:
T4 = -2°F
Step-by-step explanation:
Given the following data;
Current temperature = 10°F
Constant, K = 3°F
Time, t = 4 hours
In four (4) hours, we have;
T = kt
Substituting into the equation, we have;
T = 3 * 4
T = 12°F
T4 = current temp - new temp
T4 = 10°F - 12°F
T4 = -2°F
Therefore, the temperature it will be in 4 hours is - 2°F.
as a third-grade teacher, you receive the standardized test scores for mary and learn that she has gotten a stanine of 1 on the spelling subtest and a stanine of 3 on the math subtest. you should conclude that mary:
Performed at about average on spelling, but about one standard deviation below average on math.
Any test that (1) requires all test takers to answer the same questions, or a set of questions from a common bank of questions, in the same way and (2) is scored in a "standard" or consistent manner, allowing for comparison of the relative performance of individual test takers, is considered to be standardized.
Students are frequently chosen for certain programs using standardized assessments. For instance, norm-referenced examinations like the SAT (Scholastic Assessment Test) and ACT (American College Test) are used to decide whether high school students get admitted to elite institutions.
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What are the disadvantages of using a histogram instead of a dot plot?
Solve forj: -16 = j/2 + -19
Given:
\(-16=\frac{j}{2}+(-19)\)To solve for j :
Explanation:
Multiplying by 2 on both sides,
\(-32=j-38\)Adding 38 on both sides, we get
\(\begin{gathered} -32+38=j-38+38 \\ 6=j \end{gathered}\)Final answer:
The value of j is 6.
Whitch of the following equations best describes the line containing all three points ?
thee are basic question response formats, and each one has variation, so there are format options. a. two, five, ten. b. two, three, six. c. three, two, six. d. two, two, four.
The format options for basic question responses are as follows: a) two, five, ten; b) two, three, six; c) three, two, six; and d) two, two, four. These format options provide flexibility in constructing questions with varying numbers of response choices, allowing for different levels of complexity or variation in the questions asked.
The given format options represent variations in the number of choices or options for basic question responses. Let's break down each option:
a) Two, five, ten: This format implies that there are two possible choices or options in the question, followed by five options, and finally, ten options.
b) Two, three, six: This format suggests that the question has two choices or options, followed by three options, and finally, six options.
c) Three, two, six: This format indicates that the question has three choices or options, followed by two options, and finally, six options.
d) Two, two, four: This format suggests that there are two choices or options in the question, followed by two options, and finally, four options.
These format options provide flexibility in constructing questions with varying numbers of response choices, allowing for different levels of complexity or variation in the questions asked.
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Hi imma give out free stuff cause why not
Answer:
huhhhhhhhhhh■♤○♡¤《■■□○○
Can someone help me please
Answer:
-60
Step-by-step explanation:
Im smart
Each unit on the coordinate plane represents 1 NM. If the boat is 10 NM east of the y-axis, what are its coordinates to the nearest tenth?
The boat's coordinates are (10, 0).
A coordinate plane is a grid made up of vertical and horizontal lines that intersect at a point known as the origin. The origin is typically marked as point (0, 0). The horizontal line is known as the x-axis, while the vertical line is known as the y-axis.
The x-axis and y-axis split the plane into four quadrants, numbered I to IV counterclockwise starting at the upper-right quadrant. Points on the plane are described by an ordered pair of numbers, (x, y), where x represents the horizontal distance from the origin, and y represents the vertical distance from the origin, in that order.
The distance between any two points on the coordinate plane can be calculated using the distance formula. When it comes to the given question, we are given that Each unit on the coordinate plane represents 1 NM.
Since the boat is 10 NM east of the y-axis, the x-coordinate of the boat's position is 10. Since the boat is not on the y-axis, its y-coordinate is 0. Therefore, the boat's coordinates are (10, 0).
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Identify ZABF by clicking and dragging the small yellow dots to shade the
angle.
What is the equation of the line that is parallel to the the line y-1 =4 (x+3) and passes through th point (4,32)
What is the x-coordinate of the point that divides the directed line segment from J to k into a ratio of 2:5?
Answer:
The x-coordinate of the point that divides the directed line segment from J to K into a ratio of 2:5 is -2.
Step-by-step explanation:
Which is heavier: a ton of bricks or a ton of feathers (My points I still have 1600 points to gooo)
Answer:
they are the same
Step-by-step explanation:
as you said, they both weigh a ton, there would just be more feathers and less bricks
\( {x}^{2} + 70 = 17x\)
solve
I really neeed this done asap
Answer: x=7 x=10
Step-by-step explanation:
\(x^2+70=17x\\x^2+70-17x=17x-17x\\x^2-17x+70=0\\x^2-7x-10x+70=0\\x(x-7)-10(x-7)=\\(x-7)(x-10)=0\\x-7=0\\x=7\\x-10=0\\x=10\)
Answer:
x = 7, x = 10
Step-by-step explanation:
x² + 70 = 17x ( subtract 17x from both sides )
x² - 17x + 70 = 0 ← in standard form
consider the factors of the constant term (+ 70) which sum to give the coefficient of the x- term (- 17)
the factors are - 10 and - 7 , since
- 10 × - 7 = + 70 and - 10 - 7 = - 17 , then
(x - 10)(x - 7) = 0 ← in factored form
equate each factor to zero and solve for x
x - 7 = 0 ⇒ x = 7
x - 10 = 0 ⇒ x = 10
Which equation could represent the relationship shown in the scatter plot?
y=52x−1
y=3x
y=12x+7
y=−x+8
Scatter plot with x axis labeled variable x and y axis labeled variable y. Points go from lower left to upper right.
Answer:
y=1/2x+7
Step-by-step explanation:
ValueWarning: A date index has been provided, but it has no associated frequency information and so will be ignored when e.g. forecasting
The warning message "A date index has been provided, but it has no associated frequency information and so will be ignored when e.g., forecasting" is related to time series data analysis.
This message indicates that the date index provided for the data does not have any frequency information, which can be crucial for forecasting or modeling the time series data.
Time series data is characterized by observations taken at regular intervals over time. The frequency of the data could be daily, weekly, monthly, quarterly, or yearly, depending on the nature of the data. In time series analysis, the frequency of the data is an essential component that helps to determine the appropriate model to be used for forecasting or predicting future values.
When a date index is provided without any associated frequency information, it becomes difficult to determine the appropriate model for forecasting. Therefore, it is essential to ensure that the frequency information of the data is specified correctly while working with time series data. By doing so, it would enable forecasting or modeling to be done more accurately and effectively.
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