Answer:
292 cm²
Step-by-step explanation:
the area = 2×(8×6 +8×7 + 6×7)
= 2×(48+56+42)
= 2×146
= 292
please I need help is for today
Begin to formulate statistical questions based on your Food Habits data ( my food are takis and Hershey's chocolate chips)
1 simple (one-variable)
2 complex (two or more variables)
it would be 3 questions in total
Answer:
I honestly don't know?????? but I know some but I can't see the word clearly???!
help me please :( just tell me the answer :'3
The 2nd choice is the correct statement.
The maximum is 149 inches.
The twenty-third term in an arithmetic sequence is and the fifty-third term in the sequence is . What is the thirty-fifth term
The 35th term in the arithmetic sequence is -9.
To find the thirty-fifth term in an arithmetic sequence, we need to use the formula for finding the nth term. This formula is given as:
nth term = a + (n-1)d
Where "a" is the first term in the sequence, "n" is the term number we want to find, and "d" is the common difference between the terms in the sequence.
In this problem, we are given the twenty-third term and the fifty-third term in the sequence, so we can use this information to find the common difference. We can write two equations using the formula above:
23rd term = a + (23-1)d
53rd term = a + (53-1)d
We are given the values for these two terms, so we can substitute them into the equations:
-5 = a + 22d
35 = a + 52d
Now we can solve for "a" and "d" by using these two equations. First, we can subtract the first equation from the second equation:
40 = 30d
Dividing both sides by 30, we get:
d = 4/3
Now we can substitute this value of "d" into either of the two equations above to solve for "a". Let's use the first equation:
-5 = a + 22(4/3)
-5 = a + 88/3
Subtracting 88/3 from both sides, we get:
a = -163/3
Finally, we can use the formula for finding the 35th term in the sequence:
35th term = -163/3 + (35-1)(4/3)
35th term = -163/3 + 34(4/3)
35th term = -163/3 + 136/3
35th term = -27/3
35th term = -9
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Two similar pyramids have similarity ratio 3:5 find the ratio of the areas and the ratio of the volume
Answer:
Area=9:25 Volume=81:625
Step-by-step explanation:
Should be squared, might be wrong.
figure A is a scale copy of figure B
The value of x is 42.
To determine the value of x, we need to analyze the given information regarding the scale factor between Figure A and Figure B.
The scale factor is expressed as the ratio of the corresponding side lengths or dimensions of the two figures.
Let's assume that the length of a side in Figure B is represented by 'x'. According to the given information, Figure A is a scale copy of Figure B with a scale factor of 2/7. This means that the corresponding side length in Figure A is 2/7 times the length of the corresponding side in Figure B.
Applying this scale factor to the length of side x in Figure B, we can express the length of the corresponding side in Figure A as (2/7)x.
Given that the length of side x in Figure B is 12, we can substitute it into the equation:
(2/7)x = 12
To solve for x, we can multiply both sides of the equation by 7/2:
x = (12 * 7) / 2
Simplifying the expression:
x = 84 / 2
x = 42
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Use the conversions given below to change 63 kg into stones.
Give your answer rounded to 1 dp.
1 kg = 2.2 pounds
1 stone = 14 pounds
Answer:
63kg x 2.2 = 138.6 pounds
138.6 pounds/14 = 9.9 stones
Step-by-step explanation:
Answer:
63kg×2.2=138.6 pounds
138.6 pounds/14=9.9
What’s the inverse of f(x)=-3(x+4)? Show your work
Someone please explain this-
Determine the number of sides for the 6th shape in this pattern?
A)
ON
B)
7
C)
8
D)
9
Each successive shape in the sequence has one more side than the preceding shape. Therefore, the 6th shape in the sequence, an octagon, has 8 sides,beginning with a triangle which has 3 sides
The 6th shape in this pattern is an octagon, which has 8 sides. This pattern follows a sequence of shapes, beginning with a triangle which has 3 sides, followed by a square which has 4 sides, then a pentagon which has 5 sides, and so on. Each successive shape in the sequence has one more side than the preceding shape. Therefore, the 6th shape in the sequence, an octagon, has 8 sides.
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Use the method of Lagrange multipliers to find the maximum of the function f(x,y)=3x2−y2+4 subject to the constraint 2x−y=3. Write your answer as an ordered pair (x,y). You may assume that the maximum does exist. Show all work toward your answer. Answers with no supporting work will receive 0 points.
Using Lagrange multipliers, the maximum value of f(x,y)=3x² −y² +4 subject to the constraint 2x−y=3 is at (x,y)=(0,0).
To find the maximum of the function f(x,y)=3x ² −y² +4 subject to the constraint 2x−y=3, we can use the method of Lagrange multipliers.
First, let's define the Lagrangian function: L(x,y,λ)=f(x,y)−λ(g(x,y)−c),
where g(x,y)=2x−y is the constraint function and c=3 is the constraint value.
Now, we can set up the system of equations by taking partial derivatives:
∂x/ ∂L =6x−2λ=0,
∂y/ ∂L =−2y+λ=0,
∂λ/ ∂L =2x−y−3=0.
Solving these equations simultaneously, we have:
6x−2λ=0 ---- (1),
−2y+λ=0 ---- (2),
2x−y−3=0 ---- (3).
From equation (2), we get
λ=2y. Substituting this value into equation (1), we have
6x−4y=0, which simplifies to
3x−2y=0.
Multiplying equation (3) by 2, we get
4x−2y−6=0. Comparing this with 3x−2y=0, we see that they are the same equation. Therefore, we have:
3x−2y=0 ---- (4).
Solving equations (2) and (4), we find:
−2y+λ=0,
3x−2y=0.
Substituting
λ=2y into the second equation, we get 3x−2y=0. Solving this equation, we find
x=0 and y=0.
To check if this point is a maximum, minimum, or a saddle point, we can use the second partial derivative test. However, since the problem states that the maximum does exist, we can conclude that the maximum occurs at the point
(x,y)=(0,0).
Therefore, the maximum value of the function
f(x,y)=3x² −y² +4 subject to the constraint 2x−y=3 is at (x,y)=(0,0).
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which of the following questions does a test of significance answer? a) is the sample or experiment properly designed? b) is the observed effect due to chance? c) is the observed value correct? d) is the observed effect important? e) none of the above
Test of significance is the observed effect due to chance. Option (c) is correct .
What is a significance test?
A systematic process for evaluating a claim's veracity, a test of significance compares observable data with the claim (also known as a hypothesis). A parameter, such as the population percentage p or the population mean, is the subject of the assertion.What makes significance significant?
The presence of statistical significance gives researchers a level of assurance that their findings are accurate, trustworthy, and not the result of chance. However, not every researcher will value statistical significance the same way in every circumstance.Learn more about test of significance
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Can someone help me with this Question.
The formula we need to use is given above. In this formula, we will substitute the desired values. Let's start.
\(P=3W+D\)A) First, we can start by analyzing the first premise. The team has \(8\) wins and \(5\) losses. It earned \(8 \times 3 = 24\) points in total from the matches it won and \(1\times5=5\) points in total from the matches it drew. Therefore, it earned \(24+5=29\) points.
B) After \(39\) matches, the team managed to earn \(54\) points in total. \(12\) of these matches have ended in draws. Therefore, this team has won and lost a total of \(39-12=27\) matches. This number includes all matches won and lost. In total, the team earned \(12\times1=12\) points from the \(12\) matches that ended in a draw.
\(54-12=42\) points is the points earned after \(27\) matches. By dividing \(42\) by \(3\) ( because \(3\) points is the score obtained as a result of the matches won), we find how many matches team won. \(42\div3=14\) matches won.
That leaves \(27-14=13\) matches. These represent the matches team lost.
Finally, the answers are below.
\(A)29\)
\(B)13\)
Answer:
a) 29 points
b) 13 losses
Step-by-step explanation:
You want to know points and losses for different teams using the formula P = 3W +D, where W is wins and D is draws.
A 8 wins, 5 drawsThe number of points the team has is ...
P = 3W +D
P = 3(8) +(5) = 29
The team has 29 points.
B 54 pointsYou want the number of losses the team has if it has 54 points and 12 draws after 39 games.
The number of wins is given by ...
P = 3W +D
54 = 3W +12
42 = 3W
14 = W
Then the number of losses is ...
W +D +L = 39
14 +12 +L = 39 . . . substitute the known values
L = 13 . . . . . . . . . . subtract 26 from both sides
The team lost 13 games.
__
Additional comment
In part B, we can solve for the number of losses directly, using 39-12-x as the number of wins when there are x losses. Simplifying 3W +D -P = 0 can make it easy to solve for x. (In the attached, we let the calculator do the simplification.)
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Which graph matches the equation y+6= (x+4)?
By using graph of a function, the graph of the equation y + 6 = x + 4 has been shown below
What is graph of a function?
At first, it is important to know about function.
A function from A to B is a rule that assigns to each element of A a unique element of B. A is called the domain of the function and B is called the codomain of the function.
There are different operations on functions like addition, subtraction, multiplication, division and composition of functions.
Graph of a function f(x) is the collection of points of the form (x, f(x))
The equation is y + 6 = x + 4
y = x + 4 - 6
y = x - 2
The graph has been shown below
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Using the arithmetic growth approximation of population increase, estimate the population of Frankfort, KY after 20 years of (arithmetic) growth. In 2020, the population of the Frankfort was 28,602. In 2010, the population of Frankfort was 25,527. Estimate the population in 2040. Chegg
The estimated population of Frankfort, KY in 2040 using the arithmetic growth approximation is approximately 34,752.
To estimate the population of Frankfort, KY after 20 years of arithmetic growth, we need to calculate the average annual growth rate first. We can use the formula:
Average Annual Growth Rate = (Ending Population - Starting Population) / (Number of Years)
Using the provided population data, we can calculate the average annual growth rate:
Average Annual Growth Rate = (28,602 - 25,527) / (2020 - 2010)
= 3,075 / 10
= 307.5
Now, we can use the arithmetic growth approximation formula to estimate the population in 2040:
Estimated Population in 2040 = Starting Population + (Average Annual Growth Rate ×Number of Years)
Estimated Population in 2040 = 28,602 + (307.5 × 20)
= 28,602 + 6,150
= 34,752
Therefore, the estimated population of Frankfort, KY in 2040 using the arithmetic growth approximation is approximately 34,752.
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Write an equation of the line below.
Answer:
Step-by-step explanation:
find the two points and do "rise over run" to fins the slope.
the y-intercept is the point on the y-axis
(0, 3) and (-5, 5)
slope is 2/5
y-intercept is 3
y = 2/5x + 3
Which of the following changes will decrease the width of a confidence interval for the population mean if all other values are held constant? Select all that apply. a Increase the standard deviation b Decrease the confidence level
c Decrease the standard deviation d Decrease the sample size e Increase the confidence level f Increase the sample size
To decrease the width of a confidence for the population mean, you would want to consider the following steps:
1. Decrease the confidence level (option b): Lowering the confidence level reduces the range in which you expect the population mean to fall, thereby narrowing the confidence interval.
2. Decrease the standard deviation (option c): A smaller standard deviation means that the data points are closer together, resulting in a smaller range and a narrower confidence interval.
3. Increase the sample size (option f): A larger sample size provides more information about the population, which leads to a more precise estimate of the population mean and, consequently, a narrower confidence interval.
So, the correct choices are b, c, and f.
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Help I will mark brainliestttt plzzz
Answer:
b. 8 weeks
Step-by-step explanation:
Answer:
It’s b it’s 8
Step-by-step explanation:
Please mark me brainleist
2-simplifica
1)x²-5x-16
x+2=
2)6an²-3b²n²
b4-4ab²+4a²=
3)4x²-4xy+y²
5y-10x
4)n+1-n³-n²
n³-n-2n²+2=
5)17x³y4z6
34x7y8z10=
6)12a²b³
60a³b5x6=
1. x² - 5x - 16 can be written as (x - 8)(x + 2).
2. 6an² - 3b²n² = n²(6a - 3b²).
3. This expression represents a perfect square trinomial, which can be factored as (2x - y)².
4. Combining like terms, we get -n³ - n² + n + 1 = -(n³ + n² - n - 1).
5. 17x³y⁴z⁶ = (x²y²z³)².
6. 12a²b³ = (2a)(6b³) = 12a6b³ = 12a⁷b³x⁶.
Let's simplify the given expressions:
Simplifying x² - 5x - 16:
To factorize this quadratic expression, we look for two numbers whose product is equal to -16 and whose sum is equal to -5. The numbers are -8 and 2.
Therefore, x² - 5x - 16 can be written as (x - 8)(x + 2).
Simplifying 6an² - 3b²n²:
To simplify this expression, we can factor out the common term n² from both terms:
6an² - 3b²n² = n²(6a - 3b²).
Simplifying 4x² - 4xy + y²:
This expression represents a perfect square trinomial, which can be factored as (2x - y)².
Simplifying n + 1 - n³ - n²:
Rearranging the terms, we have -n³ - n² + n + 1.
Combining like terms, we get -n³ - n² + n + 1 = -(n³ + n² - n - 1).
Simplifying 17x³y⁴z⁶:
To simplify this expression, we can divide each exponent by 2 to simplify it as much as possible:
17x³y⁴z⁶ = (x²y²z³)².
Simplifying 12a²b³:
To simplify this expression, we can multiply the exponents of a and b with the given expression:
12a²b³ = (2a)(6b³) = 12a6b³ = 12a⁷b³x⁶.
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POWERS OF 10 PRACTICE 7TH GRADE
Answer:
0.001 and 1/1000
Step-by-step explanation:
After 11 weeks of owning his new iPhone, Murphy has 983 pictures on his phone. After a total of 16 weeks, he has a total of 1418 pictures. Assuming he takes the same number of pictures each week, how many pictures were on his phone when he bought it?
Assuming he takes the same number of pictures each week, the number of pictures that were on his phone when he bought it is; 113 pictures
How to solve Arithmetic Progression?
The general formula for Arithmetic progression or sequence is;
aₙ = a + (n - 1)d
where;
a is first term
n is position of term
d is common difference
We are given that after 11 weeks, he has 983 pictures. Thus;
a₁₁ = 983 = a + (11 - 1)d
a + 10d = 983 -----(1)
We are given that after 16 weeks, he has 1418 pictures. Thus;
a₁₆ = 1418 = a + (16 - 1)d
a + 15d = 1418 -----(2)
Subtract eq 1 from eq 2 to get;
5d = 1418 - 983
5d = 435
d = 435/5
d = 87
Put 87 for d in eq 1 to get;
a + 10(87) = 983
a + 870 = 983
a = 983 - 870
a = 113 pictures
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Please help me !! would appreciate
The answers that describe the quadrilateral DEFG area rectangle and parallelogram.
The correct answer choice is option A and B.
What is a quadrilateral?A quadrilateral is a parallelogram, which has opposite sides that are congruent and parallel.
Quadrilateral DEFG
if line DE || FG,
line EF // GD,
DF = EG and
diagonals DF and EG are perpendicular,
then, the quadrilateral is a parallelogram
Hence, the quadrilateral DEFG is a rectangle and parallelogram.
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the following information regarding the amount of time that the students in my statistics class take to solve an exam problem are collected: the probability that the students take at least 2 minutes but not more than 4 minutes is 0.25. the probability that the students take at least 3 minutes but not more than 5 minutes is 0.38. the probability that the students take at least 4 minutes but not more than 6 minutes is 0.52. the probability that the students take at least 5 minutes but not more than 7 minutes is 0.34. the probability that the students take at least 6 minutes but not more than 8 minutes is 0.17. find the probability that a randomly selected student in the class would take more than 2 minutes and less than 3 minutes, or more than 7 minutes but less than 8 minutes, to solve an exam problem.
The probability that a randomly selected student in the class takes more than 2 minutes and less than 3 minutes, or more than 7 minutes but less than 8 minutes to solve an exam problem is 0.08.
To find the probability, we can analyze the given information. Let's denote the probability of taking at least x minutes but not more than y minutes as P(x ≤ time ≤ y).
We are interested in finding P(2 < time < 3) or P(7 < time < 8).
Using the given probabilities, we can calculate P(2 < time < 3) as follows:
P(2 < time < 3) = P(time ≥ 2) - P(time ≥ 3)
= P(2 ≤ time ≤ 4) - P(3 ≤ time ≤ 5)
From the information given, we know that P(2 ≤ time ≤ 4) = 0.25 and P(3 ≤ time ≤ 5) = 0.38.
Plugging these values into the equation, we get:
P(2 < time < 3) = 0.25 - 0.38 = -0.13
However, probabilities cannot be negative, so we know that the answer is not negative.
Thus, we can conclude that P(2 < time < 3) = 0.
Similarly, we can find P(7 < time < 8) using the given probabilities:
P(7 < time < 8) = P(6 ≤ time ≤ 8) - P(5 ≤ time ≤ 7)
From the information, we have P(6 ≤ time ≤ 8) = 0.17 and P(5 ≤ time ≤ 7) = 0.34.
Substituting these values, we get:
P(7 < time < 8) = 0.17 - 0.34 = -0.17
Again, probabilities cannot be negative, so P(7 < time < 8) = 0.
In conclusion, the probability that a randomly selected student takes more than 2 minutes and less than 3 minutes, or more than 7 minutes but less than 8 minutes to solve an exam problem is 0.08.
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Round each fraction to help you estimate the solution for the following equation:1/6 + 5/6 = ____A. 0B. 1/2C. 1D. 2
The estimation of the equation 1/6 + 5/6 is 1 (option C).
For rounding a fraction to the nearest whole number, use the "rounding half up" rule if necessary.
To estimate the solution for the equation 1/6 + 5/6, we can round each fraction to the nearest whole number.
The fraction 1/6 is closer to 0 than it is to 1, so we will round it to 0.
The fraction 5/6 is closer to 1 than it is to 0, so we will round it to 1.
Now we can estimate the solution for the equation as follows:
0 + 1 = 1
Therefore, the estimated solution for the equation 1/6 + 5/6 is 1.
The correct answer is C. 1.
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El reto consiste en convertir la igualdad en verdadera, haciendo 1 movimiento y luego, otra opción, haciendo dos movimientos. (no está permitido retirar fósforos)
12
Step-by-step explanation:
9+3 =12
pls make me brainiest
Step-by-step explanation:
Un movimiento:1 opción:
Del primer 9:
retirar el fósforo de la parte superior de tal manera que este nueve se convierte en 5 y colocarlo en la parte inferior del segundo nueve de tal manera que se convierte en 8:
5 + 3 = 8
2 opción:
en el primer nueve trasladar el fósforo vertical de la parte superior derecha a la parte inferior izquierda de tal manera que este se convierte en 6:
6 + 3 = 9
Dos movimientos:Del primer nueve retirar el fósforo vertical superior izquierdo de tal manera que este se convierte en 3 y ese fósforo colocarlo de forma vertical en la parte inferior izquierda del 3 y recorrer de este 3 el fósforo vertical superior derecho hacia la izquierda de tal manera que se convierte en 6:
3 + 6 = 9
I’ve been trying other ways to try and get it but nothing is helping
Answer:
x= 104
Step-by-step explanation:
The sum of the angles on a straight line is 180°.
72° +(x +4)°= 180° (adj. ∠s on a str. line)
(x +4)°= 180° -72°
(x +4)°= 108°
x +4= 108
x= 108 -4
x= 104
SALE
25% OFF
original price!
During the sale, Ronald paid $77 for a hammock.
What was the original price rounded to the nearest penny?
A $102.67
B) $204.88
C$104.28
D$156.83
Peter picks one bill at a time from a bag and replaces it,
He repeats this process 100 times and records the results in
the table.
Peter's Experiment
Value Frequency
$1 28
14
$10 56
$20 2
Based on the table, which bill has an experimental
probability of 3 for being drawn from the bag next?
None of the bills have an experimental probability of 3, as all probabilities are between 0 and 1.
Based on the table, the experimental probability for each bill being drawn from the bag next can be calculated by dividing the frequency of each bill by the total number of draws (100). Using this formula, we can calculate the experimental probabilities for each bill:
1. For the $1 bill: Experimental probability = \(\frac{(Frequency of $1 bill)}{Total draws} = \frac{8}{100} = 0.28\)
2. For the $10 bill: Experimental probability =\(\frac{(Frequency of $10 bill)}{Total draws} = \frac{56}{100} = 0.56\)
3. For the $20 bill: Experimental probability =\(\frac{(Frequency of $20 bill)}{Total draws} = \frac{2}{100} = 0.02\)
None of the bills have an experimental probability of 3, as all probabilities are between 0 and 1.
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6. Frank's Fish Washing Service charges a base fee to wash your fish plus a charge per
minute. The table shows the total cost, c, and the number minutes it took to wash
the fish, m. Which equation represents this situation?
o
y = 3x + 8
of Minutes, m
8
10
12
14
Total Cost (S),
30
36
42
48
y = -x + 8
3
O
y = 3x + 6
O
y =
1
-x+6
Answer:
C
Step-by-step explanation:
\(x^{2} y^{2} \sqrt{750x^{3}y^{9} }\)
\(x^2y^2\sqrt{750x^3 y^9}\qquad \begin{cases} 750=5\cdot 5\cdot 5\cdot 6\\ \qquad 5^2\cdot 30\\ x^3=x^{2+1}\\ \qquad x^2\cdot x\\ y^9=y^{4\cdot 2+1}\\ \qquad y^{4\cdot 2}\cdot y\\ \qquad (y^4)^2\cdot y \end{cases}\implies x^2y^2\sqrt{5^2\cdot 30\cdot x^2\cdot x(y^4)^2 y} \\\\\\ 5xy^4 x^2 y^2\sqrt{30xy}\implies 5x^3y^6\sqrt{30xy}\)
Four different objects are placed on a number line at 0. The chart describes the motion of each object
Motion
3 units left, then 3 units right
6 units right, then 18 units right
8 units left, then 24 units right
16 units right, then 8 units left
Object
W
X
Y
Z
Using the information in the chart, the distance and displacement of each object can be determined. Which object
has a distance that is three times as great as its displacement?
DW
Y
OZ
The object whose distance is three times its displacement is object Z.
How to find the distance of the object on the coordinate?The distance is defined as a scalar quantity representing the total distance traveled.
Displacement is a vector representing the distance between the end and start points.
Distance, Displacement, Ratio To calculate r = 3
Object Motion Distance Displacement ratio
X 3 units left, 3 units right 3 + 3 = 6 3 - 3 = 0 ∞
Y 6 units right, 18 units right 6 + 18 = 24 6 + 18 = 24 1
W 8 units left, 24 units right 8 + 24 = 32 -8 + 24 = 16 2
Z 16 units right, 8 units left 16 + 8 = 24 16 - 8 = 8 3
Ratio is calculated by dividing the distance by the displacement.
distance/displacement.
For object Z it is 24/8 = 3. So the object whose distance is three times its displacement is object Z.
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If you help me I will give you 100 brainly points !!
Val is a runner in a 5-kilometer outdoor race that consists of a 0.25-kilometer sprint, a stream crossing part, and two obstacle parts. Each obstacle part of the race is 1.3 kilometers. How long is the stream part of the race?
Answer:
Stream is 2.15 kilometers of the race.
Step-by-step explanation:
If the two obstacles are 1.3 kilometers each, and the sprint is 0.25 kilometers of the race, we simply have to add these together and subtract from the total distance of 5 kilometers. 1.3+1.3+0.25 is 2.85 kilometers. 5-2.85=2.15.
Answer:
2.15 km
Step-by-step explanation:
The obstacle parts of the race are 2*1.3 = 2.6 kilometers long.
The total length of the race is 5 kilometers.
The stream part of the race is 5-0.25 - 2.6 = 2.15 kilometers long.
So the answer is 2.15 km