1) Find the area of this trapezoid?
2) Find the area of the figure below, round your answer to the nearest tenth ?
Step-by-step explanation:
1)
imagine the trapezoid standing upright (90°) turned.
then the top and bottom lines are parallel, and the 15 side is with its double right angles the height of the trapezoid.
in general, the area of such a trapezoid is
(top + bottom)/2 × height
in our case that is
(3 + 4)/2 × 15 = 7/2 × 15 = 3.5 × 15 = 52.5 units²
2)
this is basically the sum of the lower rectangle and the upper trapezoid.
the area of the lower rectangle is
58×15 = 870 mm²
the area of the upper trapezoid is (the same formula as before)
(47 + 58)/2 × (21 - 15) = 105/2 × 6 = 52.5 × 6 = 315 mm²
so, the total area is
870 + 315 = 1,185 mm² = 1,185.0 mm²
x+y² + z²
Evaluate the expression
Give the domain and range of the quadratic function whose graph is described. Minimum-8 at x=1 The domain of the function is.___. The range of the function is. ___
Step-by-step explanation:
domain =x is an element of real numbers
y>or =-8
75 percent of 32 students had an A,how many students did not get an A?
Answer:
8 did not get an A
Step-by-step explanation:
75% obtained an A , then
25% did not obtain an A
25% of 32
= \(\frac{25}{100}\) × 32
= 0.25 × 32
= 8
When examining group difference where the direction of the difference is specified, which of the following is used? Select one: a. two-tailed test b. one-tailed test C. directional hypothesis o d. critical value
When examining group differences with a specified direction, a one-tailed test is used i.e., option b is correct.
In statistical hypothesis testing, researchers often have a specific direction in mind when comparing two groups.
For example, they may hypothesize that Group A performs better than Group B or that Group A has a higher mean than Group B. In such cases, a one-tailed test is appropriate.
A one-tailed test is designed to detect differences in a specific direction. It focuses on evaluating whether the observed data significantly deviates from the null hypothesis in the specified direction.
The null hypothesis assumes no difference or no relationship between the groups being compared.
In a one-tailed test, the critical region is defined on only one side of the distribution, corresponding to the specified direction of the difference.
The critical value, which determines whether the observed difference is statistically significant, is chosen based on the desired level of significance (e.g., alpha = 0.05).
On the other hand, a two-tailed test is used when the direction of the difference is not specified, and the researchers are interested in determining whether there is a significant difference between the groups in either direction.
In this case, the critical region is divided equally between the two tails of the distribution.
A directional hypothesis (option C) is a statement that specifies the expected direction of the difference, but it is not the statistical test itself. The critical value (option D) is the value used to determine the cutoff for rejecting or accepting the null hypothesis.
Therefore, when examining group differences with a specified direction, a one-tailed test is used to assess the statistical significance of the observed difference in that particular direction.
Learn more about one-tailed test here:
https://brainly.com/question/31327677
#SPJ11
which of the following equations have no solution?
The enrollment at Davis Middle School dropped by 60 students over a 5-year period. What integer represents the average yearly drop in enrollment in students annually?
A triangular pyramid has a surface area of 174 square feet. It is made up of equilateral triangles with side lengths of 10 feet. What is the slant height?
Answer:
Slant height = 7.07 ft to nearest hundredth.
Step-by-step explanation:
The slant height = height of one of the triangular sides
Using Pythagoras:
S^2 = 1/2 * 10^2 + 10^2 = 50 ft.
S = √50 = 7.071
In a bag of Christmas treats,there are 3 red candy canes for every 5 gingerbread men. If there are a total of 40 treats, how many are candy canes?
Answer:
Candy canes are a classic Christmas treat, traditionally white with red stripes and flavored with peppermint. They have been popular since the 1600s and are thought to have originated in Germany. Today, 90 percent of all candy canes are sold between Thanksgiving and Christmas.
In a bag of Christmas treats, there are 3 red candy canes for every 5 gingerbread men. If there total is 40 treats, then the number of candy canes will be 24. This can be calculated by taking 40 divided by 8 (5+3) which equals 5, and then multiplying this by 3 which equals 15. Therefore, 24 candy canes are included in the bag of 40 Christmas treats.
Step-by-step explanation:
-14x+11y+4x-13y answer
Answer:
-14x+4x+11y-13y=-10x-2y
-2(5x+y)
Thank give branlist please
Answer:
–10x – 2y
in factorise form
–2(5x + y)
Step-by-step explanation:
–14x + 11y + 4x –13y
= –14x + 4x + 11y –13y
= –10x –2y
i hope this helps
7. Determine whether each of the following is a linear transformation. Prove/justify your conclusion!
[X1
a. Ta: [x2]
X2
→>>
-3x2
[X1
b. Tb: [X2
x1 +
→>>>
[x2 - 1
We have determined whether Ta and Tb are linear transformations or not. Ta is not a linear transformation, while Tb is a linear transformation.
Ta(x1,x2) = (-3x2)Tb(x1,x2) = (x2 - 1,x1)Let us check if Ta and Tb satisfy the following two conditions for any vectors x and y and a scalar c.
Additivity: T(x + y) = T(x) + T(y)
Homogeneity: T(cx) = cT(x)
Check whether Ta(x + y) = Ta(x) + Ta(y) for any vectors x and y.Ta(x + y) = -3(x2 + y2)Ta(x) + Ta(y) = -3x2 - 3y2= -3x2 - 3y2Therefore, Ta does not satisfy additivity.
Hence it is not a linear transformation.
Ta is not a linear transformation. Tb is a linear transformation.
Summary: We have determined whether Ta and Tb are linear transformations or not. Ta is not a linear transformation, while Tb is a linear transformation.
Learn more about vectors click here:
https://brainly.com/question/25705666
#SPJ11
Which of the following is not the graph of a function of x
The graph of a parabola is not a function of x.
Thus option 2 is correct.
What is function?Function is the process or state of instruction that text inputs performance is specific tax and produce an output functional key components of programming language allowing the quarters to create complex commands with simple instruction for example a function can be used to add two numbers round together or to generate a random function can also be combined to create more complex sequence of instruction.
number
Parabolas are usually graphed as a quadratic equation, which is not a function since it is not one-to-one. A function of x is a relation between two variables that can be expressed in the form y = f(x), where f is a mathematical expression. A parabola is a curve in the form of a U-shape, which is not one-to-one, and therefore not a function of x.
To know more about function click-
brainly.com/question/25638609
#SPJ1
Complete question:
Which of the following is not the graph of a function of x?
Area graphparabola graphbar graphshistogram graphhelp me thank u if u do
Answer:
Choice 4^th
Step-by-step explanation:
Given:
1/2+3/4+7/16 = __
To Solve:
Addition equation by finding a common multiple.
Solution:
Let the blank _ be x.
Then,
1/2+3/4+7/16 = x
Flip this equation:
x = 1/2+3/4+7/16Now solve for x.
x = (1/2+3/4)+7/16 x = 5/4+7/16x = 27/16Hence,
1/2+3/4+7/16 = 27/16
4^th Choice is accurate.
How to convert centimeters into millimeters?
Answer: Multiply the centimeters number by 10.
Step-by-step explanation: There are 10 millimeters in every centimeter.
the distance from the center of the circle to the outer edge is called
The distance from the center of the circle to the outer edge is called radius of the circle.
Circle is a segment of line connected to it itself. It is a 2 dimensional structure measuring 360°. The outer edge of the circle is called circumference. Now, an interesting fact about the circle is that circumference is equi distant from the radius.
Therefore, be it any point on the circumference, it will be at the same distance from radius. If the radius is further extended to meet the opposite side of circumference, it will become a diameter. The total length of diameter however decreases as we move from center to top of the circle.
Learn more about radius -
https://brainly.com/question/27696929
#SPJ4
how many possibilities are there if you toss coin 7 times
each toss results in 2 possible outcomes, head or tail so the number of possible outcomes for 7 would be
Answer:
2^7
2x2x2x2x2x2x2 = 2^7
GEOMETRY! PLEASE HELP!! Select all the equations that represent the distance formula.
Answer:
I'm pretty sure 2 and 5
Step-by-step explanation:
Hope this helps :)
Which of the following is not true if a successful event is to draw a heart from a standard deck of 52 cards. P(A)+P(A
′
)=1 A
′
is the set of all black cards and diamonds. n(A
′
)=13 P(A
′
)=
4
3
The statement "P(A) + P(A') = 1" is not true if a successful event is defined as drawing a heart from a standard deck of 52 cards, where A' represents the set of all black cards and diamonds.
The probability of an event and its complement sum up to 1, but in this case, the given value of P(A') as 4/3 is incorrect. P(A') represents the probability of not drawing a heart, which consists of the black cards (clubs and spades) and diamonds (excluding hearts). There are a total of 26 cards in this set (13 black cards and 13 diamonds).
To calculate P(A') correctly, we need to determine the number of cards in the set A' and divide it by the total number of cards in the deck:
n(A') = 26
P(A') = n(A') / Total number of cards = 26 / 52 = 1/2
Therefore, the correct value of P(A') is 1/2, not 4/3. As a result, the statement "P(A) + P(A') = 1" does not hold true in this scenario.
Learn more about Probability here :
brainly.com/question/32117953
#SPJ11
Australia had a total of 115,128 new cancer cases, while the USA had a total of 1,147,115 new cancer cases. The population of Australia is 24.6 million, while the population of the USA is 325.7 million. a. Give the number of cancer cases in Australia per 100,000 people 115,128 24.8 million X b. Give the number of cancer cases in the USA per 100,000 people c. Which country has more cancer cases per capita?
a) there are approximately 467.32 cancer cases per 100,000 people in Australia. b) there are approximately 352.63 cancer cases per 100,000 people in the USA. c) Australia has a higher number of cancer cases per capita than the USA.
To calculate the number of cancer cases per 100,000 people in Australia, we can use the following formula:
Number of cancer cases per 100,000 people = (Number of cancer cases / Population) * 100,000
a. Number of cancer cases in Australia per 100,000 people:
Number of cancer cases = 115,128
Population of Australia = 24.6 million = 24,600,000
Number of cancer cases per 100,000 people = (115,128 / 24,600,000) * 100,000
Calculating this expression:
Number of cancer cases per 100,000 people = 467.32
b. Number of cancer cases in the USA per 100,000 people:
Number of cancer cases = 1,147,115
Population of the USA = 325.7 million = 325,700,000
Number of cancer cases per 100,000 people = (1,147,115 / 325,700,000) * 100,000
Calculating this expression:
Number of cancer cases per 100,000 people = 352.63
c. Comparing the number of cancer cases per capita, we can see that Australia has a higher number of cancer cases per 100,000 people (467.32) compared to the USA (352.63).
In conclusion, based on the given data, Australia has more cancer cases per capita than the USA.
Learn more about Population at: brainly.com/question/15889243
#SPJ11
look below plz help please help am giving brainliest
Answer:
We conclude that the 12x is the required expression that is equivalent to 7x + 4x + x and has only one term.
Step-by-step explanation:
Given the expression
\(7x+4x+x\)
The current expression has three terms such as 7x, 4x, and x.
The current expression can be further simplified such as
\(7x+4x+x\)
Add similar elements: \(7x+4x+x=12x\)
\(=12x\)
Thus, the given expression \(7x+4x+x\) can be expressed as the only one term such as \(12x\).
i.e. \(7x+4x+x=12x\)
Therefore, we conclude that the 12x is the required expression that is equivalent to 7x + 4x + x and has only one term.
What is the additive inverse of 8,964?
Hadas wants to arrange her cards so that they are exactly the same number of cards on each page. if she can arrange the cards both by 6 and by 15, what is the least amount of cards she can have?
The least amount of cards Hadas can have is 30 cards.
To find the least number of cards Hadas can have, we need to determine the least common multiple (LCM) of 6 and 15.
The LCM is the smallest multiple that both 6 and 15 divide evenly into.
The prime factorization of 6 is 2 × 3.
The prime factorization of 15 is 3 × 5.
To find the LCM, we take the highest power of each prime factor that appears in either number:
LCM = 2 × 3 × 5 = 30
Therefore, the least amount of cards Hadas can have is 30 cards.
To learn more on LCM click:
https://brainly.com/question/24510622
#SPJ1
Raj tells his daughter, “Seven years ago, I was seven times as old as you were then. Also, three years from now, I shall be three times as old as you will be.” Find the present ages of Raj and his daughter. Also, verify the present age of Raj and his daughter graphically
The present ages of Raj and his daughter are respectively: 42 years and 12 years.
How to solve Algebra Word Problems?Present Age of Raj =y years
Present Age of daughter =x years
According to Question :
7 Years ago,
y − 7 = 7(x − 7)
⇒ 7x − y − 42 = 0.............(1)
And 3 Years from now
y + 3 = 3(x + 3)
⇒ 3x − y + 6 = 0............(2)
From eq (1) and eq (2)
Subtract eq 2 from eq 1 to get:
7x − 3x − y + y − 42 − 6 = 0
⇒ 4x = 48
⇒ x = 12
Putting x = 12 in Equation (2). we get,
(3 × 12) − y + 6 = 0
⇒ y = 42
Read more about Algebra Word Problems at: https://brainly.com/question/21405634
#SPJ1
Sam bought a jacket for $34, which is one-third of the original price. How much did thejacket cost originally?
Let the original cost of the jacket be x.
Now, saying that one-third of the original cost of the jacket is $34, is mathematically equivalent to:
\(\frac{1}{3}\times x=34\)Now we have to solve the resulting equation in order to obtain the value of x
This is done as follows:
\(\frac{1}{3}\times x=34\)\(\Rightarrow\frac{x}{3}=34\)\(\Rightarrow x=3\times34\)\(x=102\)Therefore, the original cost of the jacket is $102
At a zoo, youth tickets cost $5 and adult tickets cost $9. A group that purchased x youth tickets and y adult tickets spent $90 on tickets. What is the domain of the relationship
Answer:
0 ≤ x ≤ 18
Step-by-step explanation:
Let 'x' be the number of youth tickets purchased at the zoo and 'y' be the number of adult tickets purchased at the zoo.
At a zoo, youth tickets cost $5 and adult tickets cost $9. A group spent a total of $90 on tickets. We can write as
5x + 9y = 90
to find x we divide both side by 5
x = (90-9y)/5 => 90/5 - 9y/5
x = 18 - 9y/5
The domain of the relationship is the possible set of values of x and y that satisfies the equation. The domain of this relationship is
0 ≤ x ≤ 18
At x = 0, it means only adult tickets were purchased.
At x = 18, it means only youth tickets were purchased.
Answer:
0 ≤ x ≤ 18
Step-by-step explanation:
got it correct on pluto
Help out with this question please!
Answer:
my answer is A
Step-by-step explanation:
if you work out the equation where you know that at the x intercept y=0 you will find A to be true
when choosing between one-tailed and two-tailed tests, group of answer choices use a two-tailed test only if you have a convincing reason for not predicting a direction. use the one that is most likely to produce significant results. use a one-tailed test only if you have a convincing reason for predicting the direction. always use two-tailed tests.
The recommended approach when choosing between one-tailed and two-tailed tests is to use a two-tailed test only.
The choice between a one-tailed or two-tailed test should be based on the research hypothesis and the specific question being investigated.
If you have a convincing reason for not predicting a direction, and use the one that is most likely to produce significant results.
If the research hypothesis or question does not make a clear directional prediction, then a two-tailed test would be appropriate.
This is because a two-tailed test will consider the possibility of significant results in both directions of the distribution.
And is more conservative in its estimation of significance.
If the research hypothesis or question does make a clear directional prediction, then a one-tailed test would be appropriate.
This is because a one-tailed test will only consider the possibility of significant results in one direction of the distribution.
And is more powerful in detecting significant results in that specific direction.
Therefore, the answer is to use a two-tailed test only if you have a convincing reason for not predicting a direction, and use the one that is most likely to produce significant results.
Learn more about tailed test here
brainly.com/question/17204018
#SPJ4
On January 1, Year 1, StrangeTimes Inc. sells equipment financed with a $60,000, two-year, zero-interest bearing note, issued by its customer. Assume an implied rate of 6%. Round answers to the nearest dollar. What is interest revenue recognized for Year 1
Strange Times Inc. would recognize interest revenue of approximately $1,800 for Year 1.
To determine the interest revenue recognized for Year 1, we need to calculate the implied interest on the zero-interest bearing note. The implied interest rate is given as 6%.
The formula to calculate interest revenue is:
Interest Revenue = Principal Amount × Interest Rate.
In this case, the principal amount is $60,000. Multiplying it by the interest rate of 6% gives us $3,600, which represents the total interest for the two-year period. Since we are interested in the interest revenue for Year 1, we need to apportion this total amount accordingly.
To determine the interest revenue for Year 1, we divide the total interest by the number of years, which is 2, and round the result to the nearest dollar. So, $3,600 divided by 2 is $1,800. Therefore, Strange Times Inc. would recognize approximately $1,800 as interest revenue for Year 1.
It's important to note that the interest revenue recognized represents the amount of revenue related to the time period of Year 1 only. As the note is zero-interest bearing, the entire interest revenue is recognized upfront based on the implied interest rate.
Learn more about number here:
https://brainly.com/question/3589540
#SPJ11
Find each product.
1. (5a3b)(2ab)
2.5y(-y2+7y-2)
PLEASE HELP!!?!
Answer:
1).(5a3b)(2ab)
Expand
That's
15ab( 2ab )
we have the answer as
30a²b²2).5y(-y² + 7y - 2)
Expand
That's
- 5y³ + 35y² - 10yHope this helps you
APPLIED MATHEMATICS
Question 1 Solve the following differential equation: dV de V coto + V3 coseco [10] Question 2 Find the particular solution of the following using the method of undetermined coefficie 64 + 8s = 4e2t w
1. The solution to the given differential equation \(V = V ln|sin(e)| - V^3 ln|cot(e) + cosec(e)| + C\) where C is an arbitrary constant.
2. The particular solution to the differential equation is \(s(t) = 0.5t^2 - 8\)
To solve the given differential equation: \(dV/de = V cot(e) + V^3 cosec(e)\), we can use separation of variables.
Starting with the differential equation:
\(dV/de = V cot(e) + V^3 cosec(e)\)
We can rearrange it as:
\(dV/(V cot(e) + V^3 cosec(e)) = de\)
Next, we separate the variables by multiplying both sides by (V cot(e) + V^3 cosec(e)):
\(dV = (V cot(e) + V^3 cosec(e)) de\)
Now, integrate both sides with respect to respective variables:
∫\(dV\) = ∫\((V cot(e) + V^3 cosec(e)) de\)
The integral of dV is simply V, and for the right side, we can apply integration rules to evaluate each term separately:
\(V = \int\limits(V cot(e)) de + \int\limits(V^3 cosec(e)) de\)
Integrating each term:
\(V = V ln|sin(e)| - V^3 ln|cot(e) + cosec(e)| + C\)
where C is the constant of integration.
2.To find particular solution of differential equation \(64 + 8s = 4e^2t\), using the method of undetermined coefficients, assume a particular solution of the form:\(s(t) = At^2 + Bt + C\), where A, B, and C are that constants which have to be determined.
Taking the derivatives of s(t), we have:
\(s'(t) = 2At + B\\s''(t) = 2A\)
Substituting derivatives into the differential equation, we get:
\(64 + 8(At^2 + Bt + C) = 4e^2t\)
Simplifying the equation, we have:
\(8At^2 + 8Bt + 8C + 64 = 4e^2t\)
Comparing coefficients of like terms on both sides, get:
8A = 4 --> A = 0.5
8B = 0 --> B = 0
8C + 64 = 0 --> C = -8
Therefore, the particular solution to differential equation: \(s(t) = 0.5t^2 - 8\).
Learn more about differential equation here:
https://brainly.com/question/25731911
#SPJ11