Answer:
20 degrees.
Step-by-step explanation:
Since these triangles are similar, they will have congruent angles.
Since BAC is corrosponding to EDF, they will have the same angle measurment.
BAC = 20, so EDF = 20
Answer:
EDF = 20
Step-by-step explanation:
If the triangles are similar, the angle measurements have to be equal
<A = <D
<B = <E
<C = <F
Since BAC = 20, <A = 20 that means D = 20
EDF = 20
is it legal to drive at 80 mph if everyone is driving at that same speed, even though the posted speed limit is 65 mph?
Answer:
No, it is not legal to drive at 80 mph, even if everyone else is driving at that speed, if the posted speed limit is 65 mph. The posted speed limit is the maximum legal speed that drivers are allowed to travel on a particular road, and it is a law that must be followed.
Step-by-step explanation:
A state agency recorded the number of each type of flood that occurred in the state from 2016–2020. The results are as follows. If similar proportions of flood types are predicted for the following year, what is the estimated probability that a flood in 2021 in that state will be a river flood? Round your answer to the nearest percent. A. 7%B. 60%C. 20%
The table shows different flood types and their frequencies.
Total frequency of all flood types = 18 + 6 + 4 + 2 = 30
frequency of river flood = 6
Recall, probability is expressed as
number of favorable outcomes/number of total outcomes
Thus, the estimated probability that a flood in 2021 in that state will be a river flood is
6/30 = 0.2
By changing 0.2 to percentage, we have
0.2 x 100 = 20%
The correct option is C. 20%
Find the value of c (x-2) is a factor of the polynomial p(x). P(x)=x^3-4x^2+3x+c
Answer:
c = 2
Step-by-step explanation:
P(x)=x^3-4x^2+3x+c
The polynomial has x - 2 as a factor
Rewriting the polynomial as:
x^3-4x^2+3x+c = x^3 - 2x^2 - 2x^2 + 4x - x + c =x^2(x - 2) - 2x(x - 2) - (x - c)As we see the first 2 terms have (x -2) as a factor, so the third term:
(x - c) = (x - 2) c=2Answer is c= 2
The number of computer security breaches is expected to increase at a yearly rate of
86%.
Use the exponential growth model to determine the equivalent monthly rate.
Enter the rate, to the nearest tenth of a percent, in the box.
two-fifths of a number
Answer:
2/5 of the number
Step-by-step explanation:
Is 8/10 equal to 21/25
Answer:
21/25 is greater than 8/10. so no they arent equal to each other
Answer:
No 8/10 is 0.8
21/25 is 0.84
there Is difference of 0.04
18 pizzas were ordered for a holiday party at Reedy Creek Elementary
ANSWER
C. 12
EXPLANATION
1/3 of the pizzas is:
\(18\times\frac{1}{3}=\frac{18}{3}=6\)Therefore, 6 pizzas were cheese and the rest were pepperoni:
\(18-6=12\)There were 12 pepperoni pizzas.
PLEASE HELP ME I AM BEING TIMED, I WILL MARK BRAINLIEST TO WHOEVER GETS THIS RIGHT
Answer:
2.5 min
Step-by-step explanation:
We can start with the fact that \(d = st\), where d is the distance traveled at a speed of s for some amount of time t. If we want to solve for t, we can divide both sides of the equation by s to get the form \(t=d/s\). Plugging in the values of d = 12.5 m and s = 5 m/min gives us \(t=12.5/5=2.5\) min.
mysa paid sh 180 for a shirt after getting a discount of 10 %. the shopkeeper made a profit of 20 %on the sale of the shirt. what percentage profit would the shopkeeper have made if no discount was allowed
Answer:
10%
Step-by-step explanation:
step by step explanation
Liz estimated 228 + 7 to be between 30 and 40. Which basic
facts did she use to help her estimate? Mark all that apply.
A 20 + 5
B 21 - 7
© 28 + 7
D 30 + 5
The basic facts she used to help her estimate are (c) 28 + 7 and (d) 30 + 5
What are estimates?Estimates are approximated calculations that are used in place of an actual calculation
The expression is given as:
28 + 7
When the numbers are approximated to the nearest 5, we have:
30 + 5
Hence, the basic facts she used to help her estimate are (c) 28 + 7 and (d) 30 + 5
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2/5+4/7 = Simplified
Answer:
exact form:34/35
Step-by-step explanation: combine the fractions by finding the common denominator i guess
The Land of Nod lies in the monsoon zone, and has just two seasons, Wet and Dry. The Wet season lasts for 1/3 of the year, and the Dry season for 2/3 of the year. During the Wet season, the probability that it is raining is 3/4; during the Dry season, the probability that it is raining is 1/6. (a) I visit the capital city, Oneirabad, on a random day of the year. What is the probability that it is raining when I arrive? (b) I visit Oneirabad on a random day, and it is raining when I arrive. Given this information, what is the probability that my visit is during the Wet season? (c) I visit Oneirabad on a random day, and it is raining when I arrive. Given this information, what is the probability that it will be raining when I return to Oneirabad in a year's time? (You may assume that in a year's time the season will be the same as today but, given the season, whether or not it is raining is independent of today's weather.)
Answer:
Step-by-step explanation:
(a) To find the probability that it is raining when you arrive in Oneirabad on a random day, we need to use the law of total probability.
Let A be the event that it is raining, and B be the event that it is the Wet season.
P(A) = P(A|B)P(B) + P(A|B')P(B')
Given that the Wet season lasts for 1/3 of the year, we have P(B) = 1/3. The probability that it is raining during the Wet season is 3/4, so P(A|B) = 3/4.
The Dry season lasts for 2/3 of the year, so P(B') = 2/3. The probability that it is raining during the Dry season is 1/6, so P(A|B') = 1/6.
Now we can calculate the probability that it is raining when you arrive:
P(A) = (3/4)(1/3) + (1/6)(2/3)
= 1/4 + 1/9
= 9/36 + 4/36
= 13/36
Therefore, the probability that it is raining when you arrive in Oneirabad on a random day is 13/36.
(b) Given that it is raining when you arrive, we can use Bayes' theorem to calculate the probability that your visit is during the Wet season.
Let C be the event that your visit is during the Wet season.
P(C|A) = (P(A|C)P(C)) / P(A)
We already know that P(A) = 13/36. The probability that it is raining during the Wet season is 3/4, so P(A|C) = 3/4. The Wet season lasts for 1/3 of the year, so P(C) = 1/3.
Now we can calculate the probability that your visit is during the Wet season:
P(C|A) = (3/4)(1/3) / (13/36)
= 1/4 / (13/36)
= 9/52
Therefore, given that it is raining when you arrive, the probability that your visit is during the Wet season is 9/52.
(c) Given that it is raining when you arrive, the probability that it will be raining when you return to Oneirabad in a year's time depends on the season. If you arrived during the Wet season, the probability of rain will be different from if you arrived during the Dry season.
Let D be the event that it is raining when you return.
If you arrived during the Wet season, the probability of rain when you return is the same as the probability of rain during the Wet season, which is 3/4.
If you arrived during the Dry season, the probability of rain when you return is the same as the probability of rain during the Dry season, which is 1/6.
Since the season you arrived in is independent of the weather when you return, we need to consider the probabilities based on the season you arrived.
Let C' be the event that your visit is during the Dry season.
P(D) = P(D|C)P(C) + P(D|C')P(C')
Since P(C) = 1/3 and P(C') = 2/3, we can calculate:
P(D) = (3/4)(1/3) + (1/6)(2/3)
= 1/4 + 1/9
= 9/36 + 4/36
= 13/36
Therefore, the probability that it will be raining when you return to Oneirabad in a year's time, given that it is raining when you arrive, is 13/36.
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Mr. Holmes has been getting his Master's in Education from Dowling College and has just heard the news: due to low enrollment, Dowling College will be closing! Because of this, there will be a sale at the campus bookstore and everything is 30% off. If he buys a hat with an original price of $25.00, he believes that the price will be $7.50. When he gets to the register however, the cashier tells Mr. Holmes that he owes $17.50. Who do you think is correct, Mr. Holmes or the cashier?
Answer:
cashier
Step-by-step explanation:
the discount is $7.50
Which of the following statement is NOT correct about hypothesis testing? If the outcome we observed could have occurred just by chance, then we say the effect is statistically significant. We cannot eliminate both type l error and type Il error at the same time. Null hypothesis and Alternative hypothesis should be mutually exclusive. It is a statement about the value of a population parameter.
The statement that is NOT correct about hypothesis testing is: "We cannot eliminate both type l error and type II error at the same time."
In hypothesis testing, we aim to make a decision about a population parameter based on sample data. Type I error refers to rejecting a true null hypothesis, while Type II error refers to failing to reject a false null hypothesis. While it is not possible to completely eliminate both types of errors simultaneously, we can minimize the chances of committing either of them by choosing an appropriate significance level and conducting a power analysis.
Therefore, the statement that we cannot eliminate both Type I and Type II errors at the same time is incorrect.
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PLEASE HELP
A
B
C
D
???
what is the percent of change between 57000 people and 97000 people, and how do I solve it?
Answer:
58.76
Step-by-step explanation:
So, as you can tell 97,000 is the 100 percent of the people, in this case we don't know what 57,000 is. Just divide equation 1 by equation 2. Considering both have the same unit. I'm so sorry, if this doesn't explain the best way.
3 If the probability mat Ade, susan, and feyi, Solve a question 1/3,2/5 and 1/4 respectively Find the probability that 1. None of the them solve the question 2. All of them solve the question. 3. At least two people solve the question. 4.At most two people solve the question 5.At least one person didn't solve
the question
To solve the given probabilities, let's consider the individual probabilities of Ade, Susan, and Feyi solving the question, denoted as A, S, and F, respectively.
To find the probability that none of them solve the question, we calculate the complement of at least one person solving the question: P(None)
= 1 - P(A) - P(S) - P(F) = \(1 - \frac{1}{3} -\frac{ 2}{5} - \frac{1}{4}\).
To find the probability that all of them solve the question, we multiply their individual probabilities: P(All)
= P(A) * P(S) * P(F) = \(\frac{1}{3} \times\frac{ 2}{5} \times\frac{ 1}{4}\).
To find the probability that at least two people solve the question, we calculate the complement of fewer than two people solving it: P(At least two) = 1 - P(None) - P(A) - P(S) - P(F).
To find the probability that at most two people solve the question, we calculate the sum of the probabilities of no one and exactly one person solving it: P(At most two) = P(None) + P(A) + P(S) + P(F) - P(All).
To find the probability that at least one person didn't solve the question, we calculate the complement of all three solving it: P(At least one didn't) = 1 - P(All).
By substituting the given probabilities into these formulas, you can calculate the desired probabilities.
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Simplify: [(x – 2) ^2(x + 2)] ^2
The value of the expression : [(x – 2) ^2(x + 2)] ^2 will be (x³ - 4x² + 10x + 8)².
How to illustrate the information?It should be noted that the information simony wants us to multiply the expressions that are given. In this case, they can be computed individually. This will be:
(x - 2)² = (x - 2)(x - 2)
= x² - 2x - 2x + 4.
= x² - 4x + 4
This will be:
(x² - 4x + 4)(x - 2)
= x³ - 2x - 4x² + 8x + 4x - 8
= x³ - 4x² + 10x + 8
We will then square the above value. This will be (x³ - 4x² + 10x + 8)².
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The value of 34 + 5 ⋅ 5 = ___.
what is -9 = -6r simplified
Answer:
Exact Form:
r = 3/2
Decimal Form:
r = 1.5
Mixed Number Form:
r =1 1/2
Step-by-step explanation:
Theorem 9.6.4: when is the function V(x, y) = ax² + bxy + cy² positive definite? When is it negative definite?
The function V(x, y) = ax² + bxy + cy² is positive definite if and only if a > 0 and ac - b²/4 > 0.
The function V(x, y) is negative definite if and only if a < 0 and ac - b²/4 > 0.
The function V(x, y) is indefinite if and only if ac - b²/4 < 0.
In other words, the sign of a determines whether V(x, y) is positive or negative definite, and the discriminant ac - b²/4 determines whether it is definite or indefinite.
The proof of this theorem is based on the properties of the eigenvalues of the symmetric matrix A = [[a, b/2], [b/2, c]], which corresponds to the Hessian matrix of V(x, y) at the critical point (0, 0). The eigenvalues of A are λ1 = a + c + √(ac - b²/4) and λ2 = a + c - √(ac - b²/4), and their signs determine the definiteness of V(x, y).
If both eigenvalues are positive, V(x, y) is positive definite. If both eigenvalues are negative, V(x, y) is negative definite. If the eigenvalues have opposite signs, V(x, y) is indefinite. If one of the eigenvalues is zero, the test is inconclusive and higher-order derivatives must be considered.
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what’s the area of this figure, rounded to the nearest tenth?
Answer:
198 in²
Step-by-step explanation:
triangle (A=1/2)bh [A=1/2(22×8)] b=22 H=8
rectangle (A=bh) [A= 22×5] B=22 H=5
triangle = 88
rectangle = 110
So, 88+110 = 198
how many rows and columns must a matrix a have in order to define a mapping from r4 into r5 by the rule t .x/ d ax?
The matrix A must have the following form:
A = [ a11 a12 a13 a14 ]
[ a21 a22 a23 a24 ]
[ a31 a32 a33 a34 ]
[ a41 a42 a43 a44 ]
[ a51 a52 a53 a54 ]
In order for a matrix A to define a mapping from R4 into R5 by the rule T(x) = Ax, the matrix A must have 5 rows and 4 columns.
This is because the number of rows in the matrix determines the dimension of the output space, while the number of columns determines the dimension of the input space. In this case, the output space is R5 and the input space is R4, so the matrix must have 5 rows and 4 columns.
In general, if a matrix A is used to define a mapping from Rn into Rm by the rule T(x) = Ax, then the matrix A must have m rows and n columns.
So, the matrix A must have the following form:
A = [ a11 a12 a13 a14 ]
[ a21 a22 a23 a24 ]
[ a31 a32 a33 a34 ]
[ a41 a42 a43 a44 ]
[ a51 a52 a53 a54 ]
where each aij is a scalar.
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) Solve this equation: − 10 + = 8 + 2 − 18
Answer:
I think the question is wrong check ur question and I will answer
all of the following are inhaled antigens that cause allergic rhinitis except ________. group of answer choices animal dander polyp mold pollen
All of the following are inhaled antigens that cause Allergic rhinitis except polyp.
Allergic rhinitis is a common condition that causes inflammation in the nasal passages due to the immune system overreacting to certain inhaled allergens. These allergens are known as antigens and can include pollen, animal dander, mold, and others.
However, out of these options, the one that does not cause allergic rhinitis is polyp. Polyps are non-allergic growths that can form in the nasal passages but are not caused by an immune response to an inhaled antigen.
It is important to identify the specific allergen that triggers allergic rhinitis in order to avoid it and seek appropriate treatment. This may involve allergy testing and medication, such as antihistamines or nasal corticosteroids.
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Use the graph to estimate the solution to the quadratic-linear system
what is the X coordinate to the solution of y =6x+9y = 12x -15?
ANSWER:
The value of x is 4
STEP-BY-STEP EXPLANATION:
We have the following system of equations
\(\begin{gathered} y=6x+9 \\ y=12x-15 \end{gathered}\)Now, we solve the system by means of the equalization method
\(\begin{gathered} 6x+9=12x-15 \\ \end{gathered}\)solving for x
\(\begin{gathered} 12x-6x=9+15 \\ 6x=24 \\ x=\frac{24}{6} \\ x=4 \end{gathered}\)A student scored 83 and 91 on her first two quizzes. Write and solve a compound inequality to find the possible values for a third quiz score that would give her an average between 85 and 90, inclusive
Step-by-step explanation:
3*85 <= 83+91+x <= 3*90
255 <= 174+x <= 270
81 <= x <= 96
Answer:
81 ≤ x ≤ 96
Step-by-step explanation:
85 ≤ (x + 83 + 91)/3 ≤ 90
85 ≤ (174 + x)/3, (174 + x)/3 ≤ 90
81 ≤ x ≤ 96
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Question 16 of 22
Question 16
Students were surveyed about what summer camp they would be attending
Number of Students
Camp Name
Camp Arrowhead
130
Camp Kern
220
Camp Redwood
170
of the students that stated they would be going to Camp Redwood, 20% did not go to camp. Of the students that stated they would be going
to Camp Kern, 15% did not go to camp. How many more students went to Camp Kern than Camp Redwood?
students
Next Question
Done and Revie
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C
Answer:
7y6tgrrrrrrrrrrrrrhytgreytr
Step-by-step explanation:gbttrfed5tg3bevscz
Determine the number of zeros of the polynomial function f(x)= x^8-x^9
Step-by-step explanation:
Determine if odd, even, or neither.
The function is neither even nor odd
Answer:
9
Step-by-step explanation:
The highest power of x is 9: x^9
and therefore this polynomial will have 9 zeros.