Answers
ANSWER
5%
EXPLANATION
To find the percentage error, we have to apply the formula:
\(\text{ \%error = }\frac{|Actual\text{ value - Expected value|}}{Expected\text{ value}}\cdot100\)The actual number of people is 683 and the expected number of people is 650.
Therefore, the percentage error is:
\(\begin{gathered} \text{ \%error = }\frac{|683-650|}{650}\cdot100 \\ =\frac{33}{650}\cdot100 \\ \approx5\text{ \%} \end{gathered}\)That is the answer.
Related Questions
Which triangle is similar to AJKL?
Ο ΔJKM
Ο ΔΜΚL
Ο ΔKML
O ALJK
Answers
Answer: ALJK
Step-by-step explanation:
It takes 14 electricians 18 days to wire a new housing subdivision. How many days would it take 24 electricians to do the same job?
Answers
Answer: 31 electricians
Step-by-step explanation:
We could set up a ratio for this problem. It takes 14 electricians 18 days to wire a new housing subdivision, so it would take 24 electricians x days to do the same job. 14/18 = 24/x. We can then cross multiply to find x.
X = 30.8 or approximately 31.
Which angle is not supplementary to angle 6?
Answers
Answer:
These two angles (140° and 40°) are Supplementary Angles, because they add up to 180°:
Notice that together they make a straight angle.
supplementary angles 60 and 120
But the angles don't have to be together.
These two are supplementary because
60° + 120° = 180°
Step-by-step explanation:
Tanisha bought 2 skirts and 3 pairs of pants for $220. A week later she bought 1 skirt and 3 pairs of pants, at the same prices, for $185. How much is each skirt?
Answers
Answer:
220.00
-185.00
= 35.00 the difference of what was paid at the same prices.
The slope of AB is 2/3, A(1,-4) and B(-5,y). Solve for the value of y.
Answers
the difference between the x coordinates of each point is 6. in order for the slope to simplify to 2/3 the difference in y should be 9.
y=9-4(y coordinates of A)
=5
Answer:
y=5
Step-by-step explanation:
the difference between the x coordinates of each point is 6. in order for the slope to simplify to 2/3 the difference in y should be 9.
y=9-4(y coordinates of A)
=5
What does 2x + -7 equal
Answers
Answer:
uh you can't really solve for it because you need more data
Step-by-step explanation:
Hope this helps!
The total square footage of your house is 1200 square feet. You want to put new carpet in every room, hallway, and closet, except for the kitchen, dining room and bathroom. If the kitchen is 10 ft by 12 ft and the dining room is 11 ft by 13 ft and the bathroom is 6 ft by 8 ft, how many square feet of carpet do you need for the house?
Answers
The number of square feet of carpet needed for the rooms is 889 ft².
How to find the area of a figure?The total square footage of your house is 1200 square feet.
He wants to put new carpet in all rooms except for the kitchen, dining room and bathroom.
Therefore,
total area = 1200 ft²
Area of the other rooms with no carpet = (10 × 12) + (11 × 13) + (6 × 8)
Area of the other rooms with no carpet = 120 + 143 + 48
Area of the other rooms with no carpet = 311 ft²
Hence, the number of square feet for the house = 1200 - 311 = 889 ft²
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PLEASE NEED ANSWERS!
Answers
Answer: 1
Step-by-step explanation:
Suppose you are driving to your vacation destination. You are driving at an average rate of 60 miles per hour. You must drive a total of 235 miles. If you have already driven 55 miles, how long will it take you to reach your destination? A. 4 hours B. 3 hours C. 2 hours D. 5 hours ered 10
Answers
If we must drive 235 miles in total, and we've already driven 55 miles, the distance to go would be:
\(235-55=180\text{ miles}\)Now, we know we're traveling at a constant rate of 60 miles per hour. (60 miles every hour) let's use this and a rule of three to know how long will it take us to reach our destination:
Thereby,
\(x=\frac{180}{60}\rightarrow x=3\)It would take us 3 hours to reach our destination
(Correct answer: Option B)
Which factor can cause secondary succession?
A. clear cutting
B. glacial melting
C. competition
D. predation
(Which one from these answers?)
Answers
A- clear cutting
Answer:
a
Step-by-step explanation:
Find the open intervals on which the function f(x)= x+10sqrt(9-x) is increasing or decreasing.
Answers
The function f(x) = x + 10√(9 - x) is increasing on the interval (-∞, 9) and decreasing on the interval (9, ∞).
To determine the intervals on which the function is increasing or decreasing, we need to find the derivative of the function and analyze its sign.
Let's find the derivative of the function f(x) = x + 10√(9 - x) with respect to x.
f'(x) = 1 + 10 * (1/2) * (9 - x)^(-1/2) * (-1)
= 1 - 5√(9 - x) / √(9 - x)
= 1 - 5 / √(9 - x).
To analyze the sign of the derivative, we need to find the critical points where the derivative is equal to zero or undefined.
Setting f'(x) = 0:
1 - 5 / √(9 - x) = 0
5 / √(9 - x) = 1
(√(9 - x))^2 = 5^2
9 - x = 25
x = 9 - 25
x = -16.
The critical point is x = -16.
We can see that the derivative f'(x) is defined for all x values except x = 9, where the function is not differentiable due to the square root term.
Now, let's analyze the sign of the derivative f'(x) in the intervals (-∞, -16), (-16, 9), and (9, ∞).
For x < -16:
Plugging in a test value, let's say x = -17, into the derivative:
f'(-17) = 1 - 5 / √(9 - (-17))
= 1 - 5 / √(9 + 17)
= 1 - 5 / √26
≈ 1 - 0.97
≈ 0.03.
Since f'(-17) is positive, the function is increasing in the interval (-∞, -16).
For -16 < x < 9:
Plugging in a test value, let's say x = 0, into the derivative:
f'(0) = 1 - 5 / √(9 - 0)
= 1 - 5 / √9
= 1 - 5 / 3
≈ 1 - 1.67
≈ -0.67.
Since f'(0) is negative, the function is decreasing in the interval (-16, 9).
For x > 9:
Plugging in a test value, let's say x = 10, into the derivative:
f'(10) = 1 - 5 / √(9 - 10)
= 1 - 5 / √(-1)
= 1 - 5i,
where i is the imaginary unit.
Since the derivative is not a real number for x > 9, we cannot determine the sign.
Combining the information, we conclude that the function f(x) = x + 10√(9 - x) is increasing on the interval (-∞, 9) and decreasing on the interval (9, ∞).
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Find the output, y, when the input, x, is -9.
y =
Answers
Answer:
when x=-9, y=1
Step-by-step explanation:
the graph shows when the x is at -9, the y is at 1
Question 22 22) Look at the system of equations below. y = -3.x + 2 y = 2x - 3 Which of these graphs represents this system of equations? A у N -5 -4 -2 -10 2 3 4 -2 у B
Answers
y = -3x + 2
y= 2x - 3
We need to find the points
y = -3x + 2
put x = 0
y = 2
Put y=0 and solve for x
0 = -3x + 2
-3x = -2
x = -2/-3
x = 0.67
The point for the first line is; (0, 2) and (0.67, 0)
For he second equation
y=2x -3
put x=0
y = -3
put y=0 and solve for x
0 = 2x -3
2x = 3
x = 1.5
The points are;
(0, -3) and (1.5, 0)
Below is the graph
Hence, the correct option is A
It takes two painters five hours to finish painting a house how long would it take to finish painting a house if there were 20 painters working at the same rate.
Answers
Answer:
the answer is 0.5
Step-by-step explanation:
you have to find the constant of variation which is ten than you need 20 painters so you do 10/20 or 1/2 which is also 0.5
Answer:
The answer would be 0.5.
Step-by-step explanation:
Choose the point-slope form of the equation of this line.
Answers
Answer:
y= -5x +7
Step-by-step explanation:
We can see points on the graph:
(2, -3) and (3, -8)The function in general form is:
y= mx+bLet's find the slope and y-intercept as per identified points on the graph:
m= (y1-y1)/(x2-x1)m= (-8+3)/(3-2)= -5b= y- mx
b= - 3 -(-5)*2= -3 +10= 7Based on the found values of m and b, the given line is:
y= -5x +7Answer:
The answer is C: y + 8 = -5(x - 3)
Step-by-step explanation:
I took the assignment on Edge
1/3 gallons of apple juice for $2.44 how much per gallon
Answers
The cost of 1 gallon of apple juice is, $7.32.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
We have to given that;
The cost of 1/3 gallons of apple juice for $2.44.
Hence, The cost of 1 gallon of apple juice is,
⇒ $2.44 × 3
⇒ $7.32
Thus, The cost of 1 gallon of apple juice is, $7.32.
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Need help with 7+2=16-?
Answers
Answer:
no 7+2 is 9 so yeah ;)))))))))))))))
On a piece of paper, graph y<-3/4x+2. Then determine which answer choice
matches the graph you drew.
Answers
The graph of the linear inequality is given by the image presented at the end of the answer.
How to define a linear function?The slope-intercept equation for a linear function is presented as follows:
y = mx + b
In which:
m is the slope.b is the intercept.The function for this problem is given as follows:
y = -3x/4 + 2.
Hence the graph crosses the y-axis at y = 2, and when x increases by 4, y decays by 3.
The inequality is given as follows:
y < -3x/4 + 2.
Meaning that points below the dashed line are the solution to the inequality.
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I need some help with this math problem help me out please...
Answers
Answer:
29
Step-by-step explanation:
(7-5)^2 is 4 and (20-19)^2 is 1
4+1=5
3*5=15
15+14=29
Answer:
29
Step-by-step explanation:
3((7-5)^2+(20-19)^2) + 14
3(4+1)+14
12+3+14
15+14
29
A truck was purchased for $188000 and it was estimated to have a $32000 salvage value at the end of its useful life. Monthly depreciation expense of $2600 was recorded using the straight-line method. The annual depreciation rate is a.16,60% b.6.67% c.20.00% d.1.67%.
Answers
Answer: 20%
Step-by-step explanation: Annual depreciation = $2,600 * 12 = $31,200
Annual depreciation rate = Annual depreciation /Depreciable costs
= $31,200 / ($188,000 - $32,000)
= 20%
The 4th time of me posting this question
Answers
In ΔCDE, the measure of ∠E=90°, the measure of ∠C=43°, and CD = 95 feet. Find the length of EC to the nearest tenth of a foot
Answers
Answer:
69.5 FT
Step-by-step explanation:
\cos C = \frac{\text{adjacent}}{\text{hypotenuse}}=\frac{x}{95}
cosC=
hypotenuse
adjacent
=
95
x
\cos 43=\frac{x}{95}
cos43=
95
x
95\cos 43=x
95cos43=x
Cross multiply.
x=69.4786\approx \mathbf{69.5}\text{ feet}
x=69.4786≈69.5 feet
1) Which part of a circle is a portion of the boundary of a circle?
A. arc
B. center
C. circumference
D. radius
Answers
Answer:
A. arc
Step-by-step explanation:
The circumference is the entire boundary of a circle.
A portion of the circumference is called an arc.
Solve for x.
Show work
Answers
Answer:
x=11.34
Step-by-step explanation:
Multiply -5.4 in both sides
x = 11.34
Have a good day ^^
If a=12 and h = 25, then the volume a triangular pyramid is?
Answers
The volume of the triangular pyramid, with a base area of 12 and a height of 25, is equal to 100 cubic units.
To calculate the volume of a triangular pyramid, we need the values of the base area and the height. Given that a = 12 and h = 25, we can proceed with the calculation.
The formula for the volume of a triangular pyramid is (1/3) * base area * height. Since we know the base area is equal to a, we can substitute the values into the formula.
Volume = (1/3) * a * h
Plugging in the given values, we have:
Volume = (1/3) * 12 * 25
Simplifying the expression further:
Volume = (1/3) * 300
Volume = 100
Therefore, the volume of the triangular pyramid, with a base area of 12 and a height of 25, is equal to 100 cubic units.
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Helpppppp plsssssss
Will give brainly
Answers
Answer:
12 sq cm
Step-by-step explanation:
Area of rectangular pyramid = Area of base which is square + 4 times the area of one triangle.
\( = {2}^{2} + 4( \frac{1}{2} \times 2 \times 2) \\ \\ = 4 + 4(2) \\ \\ = 4 + 8 \\ \\ = 12 \: {cm}^{2} \)
Find the coordinates of the vertex of the following parabola algebraically. Write your answer as an (x , y) point
\(y = - {x}^{2} + 8x - 23\)
Answers
Do it by making factors of x by using middle term splitting method. You can learn about this method by watching you tube video . Then find out the y.
A soda company is trying to determine if they should add an ingredient for a new drink. They survey 1,075 people and find 473 like the added ingredient. They will add the ingredient if over 40% of the people surveyed like it. Should they add the ingredient? Justify your answer with mathematical evidence and facts.
Answers
Answer:
Yes because 44% of people surveyed liked the new ingredient
Step-by-step explanation:
473/1075=.44
.44x100=44
therefore, 44% of people like the new ingredient
What attributes were used to organize the shapes in Circle A and Circle B?
Circle A Circle B
Attribute of Circle A:
Attribute of Circle B:
Help me please I am not that go in math
Answers
Answer: attribute of circle A
Step-by-step explanation: took it ur good
lect the correct answer.
Under which condition is the sample proportion, , a point estimate of the population proportion?
A.
The sample proportion is never a point estimate of the population proportion.
B.
The sample represents a proportion of the population.
C.
The sample proportion is unbiased.
D.
The sample size, n, is small enough.
Reset Next
Answers
The correct answer is B. The sample represents a proportion of the population.
What is the sample population ?
A point estimate is a single value used to estimate a population's unknown parameter. The sample proportion (denoted by p), in the context of determining the population proportion, is a widely used point estimate. The sample proportion is determined by dividing the sample's success rate by the sample size.
The sample must be representative of the population for it to be a reliable point estimate of the population proportion. To accurately reflect the proportions of various groups or categories present in the population, the sample should be chosen at random.
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