Let the height of the balloon be h.
The problem is illustrated in the diagram below:
Notice that the distances form sides of a right triangle. Apply the Pythagorean theorem to the triangle:
\(h^2+16^2=20^2\)Solve the equation for h:
\(\begin{gathered} h^2+256=400 \\ \Rightarrow h^2=400-256 \\ \Rightarrow h^2=144 \\ \Rightarrow h=\sqrt{144}=12 \end{gathered}\)The balloon has risen to a height of 12m.
If
to DEF?
A 23
B. 16°
C. 32°
D. 58°
The calculated measure of the angle D is (c) 32 degrees
How to determine the measure of the angleFrom the question, we have the following parameters that can be used in our computation:
The triangles ABC and DEF
The triangles are similar triangles
This means that the corresponding angles are equal
Given that
A = 32 degrees
And the corresponding angle is D
We have
D = 32 degrees
Hence, the measure of the angle is (c) 32 degrees
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A certain insurance company sells an home and auto insurance policy that covers losses incurred by a policy holder, subject to a deductible of $369. Losses incurred follow an exponential distribution with a mean of $396.
Find the 95 percentile of the actual losses that exceed the deductible.
The 95th percentile of the actual losses that exceed the deductible is given as follows:
$1,198.
What is the exponential distribution?The exponential probability distribution, with mean m, is described by the following equation:
\(f(x) = \mu e^{-\mu x}\)
In which \(\mu = \frac{1}{m}\) is the decay parameter.
The probability of obtaining a value lower than x is given as follows:
\(P(X \leq x) = 1 - e^{-\mu x}\)
Losses incurred follow an exponential distribution with a mean of $396, hence the decay parameter is of:
\(\mu = \frac{1}{396}\)
\(\mu = 0.0025\)
The 95th percentile is x for which P(X < x) = 0.95, hence:
0.95 = 1 - e^(-0.0025x)
e^(-0.0025x) = 0.05
x = -ln(0.05)/0.0025
x = $1,198.
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Simply this question and get marked branlist
Answer:
72/n^5r
Step-by-step explanation:
Answer:
Below
Step-by-step explanation:
13)
● 2d^3 × c^6 × 8d^5 × c^2
Isolate the similar terms
● (2×8)× (d^3 × d^5)×(c^6×c^2)
● 16 × d^(3+5) × c^(6+2)
● 16 × d^8 × c^8
● 16 × (dc)^8
● 16(dc)^8
■■■■■■■■■■■■■■■■■■■■■■■■■■
● 8n×r^(-4) ×9×n^(-6)×r^3
Isolate the similar terms
● (8×9)× (r^(-4)×r^3) × (n×n^(-6))
● 72 × r^(-4+3) × n^(1-6)
● 72 × r^-1 × n^(-5)
● 72 ×(1/r) × (1/n^5)
● 72/(r×n^5)
George has a rectangular garden in his backyard. The dimensions are 24 feet in length and 20 feet in width. What is the perimeter of the garden in feet?
A) 480 feet
B) 40 feet
C) 48 feet
D) 88 feet
Answer:
D) 88 feet
Step-by-step explanation:
24+24+20+20= 88
since it is a rectangle you add up the same sides by each other too.
Last question of the day I need help with this.
The answer is 64.5 in2
The points A, B, C and D lie in order on a straight line
such that
AB:BD = 1:2
AC:CD= 7:2
Find AB:BC:CD
Answer:
7 + 2 = 9, so AC = 7/9 and CD = 2/9
1 + 2 = 3, so AB = 1/3 = 3/9 and
BD = 2/3 = 6/9
AB + BC = AC
3/9 + BC = 7/9, so BC = 4/9
AB:BC:CD = (3/9):(4/9):(2/9) = 3:4:2
Find the value of g(f(-1))
Answer: I say 13
Step-by-step explanation:
Use a calculator to graph f(x) = 2x ^ 3 - 6x ^ 2 - 4x + 1 Which are the approximate x-values of the local maximum and local minimum rounded to the nearest tenth?
A) max ≈ -15.6 , min ≈ 1.6
B) max ≈ 1.6 , min ≈ -15.6
C) max ≈ 2.3 , min ≈ -0.3
D) max ≈ -0.3 , min ≈ 2.3
The approximate x-values for the local maximum and the local minimum are given as follows:
D) max ≈ -0.3 , min ≈ 2.3.
What are the relative minimums and the relative maximums of a function?The relative minimums of a function are given by the points in which the function's behavior changes from decreasing to increasing.The relative maximums of a function, meanwhile, are given by the points in which the function's behavior changes from increasing to decreasing.Hence the critical points of the graphed function are given as follows:
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What is the M.A.D. (mean absolute deviation) of the following data set?
8 9 9 7 8 6 9 8
The mean absolute deviation is 0.75
How to determine the mean absolute deviationTo calculate the mean absolute deviation (M.A.D.), you need to find the average of the absolute differences between each data point and the mean of the data set
From the information given, we have that the data set is;
8 9 9 7 8 6 9 8
Let's calculate the mean, we get;
Mean = (8 + 9 + 9 + 7 + 8 + 6 + 9 + 8) / 8
Mean = 64 / 8
Divide the values
Mean = 8
Let's determine the absolute difference, we get;
Absolute differences=
|8 - 8| = 0
|9 - 8| = 1
|9 - 8| = 1
|7 - 8| = 1
|8 - 8| = 0
|6 - 8| = 2
|9 - 8| = 1
|8 - 8| = 0
Find the mean of the absolute differences:
Average of absolute differences = (0 + 1 + 1 + 1 + 0 + 2 + 1 + 0) / 8
Absolute difference = 6 / 8 = 0.75
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Which equation is equivalent to 4^x+3 - 64?
2^x+6 = 2^4
22^x+6 = 2^6
42^x+6= 4^2
4^x+3 - 4^6
Answer:
c
Step-by-step explanation:
Simplify 17(z-4x)+2(x+3z)
Answer:
23z-66x
Step-by-step explanation:
Look at the attachment please :D
Construction workers are paving a road. The road must drop 4 cm for every 650 cm measured horizontally.
a) What is the slope of the road?
b) Suppose a section of the road drops 24.5 cm. How long is this section of the road measured horizontally?
Answer:
a)
slope = (-4 cm) / (650 cm)
slope ≈ -0.00615
b) the section of the road measured horizontally is approximately 3983.74 cm long.
Step-by-step explanation:
change in horizontal distance = (change in vertical distance) / slope
change in horizontal distance = (-24.5 cm) / (-0.00615)
change in horizontal distance ≈ 3983.74 cm
5(10v-8w+4) as a distributive property
Using distributive property, the solution to the given expression is: 50v - 40w + 20
How to use distributive property?The Distributive Property is a term which is an algebra property which is used to multiply a single term and two or more terms inside a set of parentheses.
For example:
4(3 + 5)
According to the distributive property, you first have to multiply out the bracket to get:
4*3 + 4*5 = 12 + 20
= 32
Thus:
5(10v - 8w + 4) = (5 * 10v) - (5 * 8w) + (5 * 4)
= 50v - 40w + 20
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A student needs to decorate a box as part of a project for her history class. A model of the box is shown.
A rectangular prism with dimensions of 22 inches by 14 inches by 3 inches.
What is the surface area of the box?
416 in2
232 in2
832 in2
616 in2
After answering the query, we may state that Therefore, the surface area of the box is 832 in².
what is surface area ?An object's surface area is a measure of how much space it takes up overall. The entire amount of space around a three-dimensional form is its surface area. The total surface area of a three-dimensional form is referred to as its surface area. By summing the areas of each face, one may get the surface area of a cuboid with six rectangular faces. Alternatively, you may identify the box's dimensions using the following formula: Surface (SA) equals 2lh, 2lw, and 2hw. A three-dimensional form's surface area is a measurement of how much space it takes up overall on the surface (a three-dimensional shape has a height, breadth, and depth).
To find the surface area of the rectangular prism, we need to find the area of each of its six faces and then add them up.
The top and bottom faces each have an area of 22 inches by 14 inches = 308 square inches.
The front and back faces each have an area of 22 inches by 3 inches = 66 square inches.
The left and right faces each have an area of 14 inches by 3 inches = 42 square inches.
2(308) + 2(66) + 2(42) = 616 + 132 + 84 = 832 square inches.
Therefore, the surface area of the box is 832 in².
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Which statements are true about the graph of y < 2x+1? Check all that apply 3 The slope of the line is 1 The line is solid The area below the line is shaded. A solution to the inequality is (2, 3) The x-intercept of the boundary line is (-2, 0) Graph y
The statements that are true about the graph of y < 2x+1 include the following:
C. The area below the line is shaded.
D. A solution to the inequality is (2, 3).
What is an inequality?In Mathematics and Geometry, an inequality simply refers to a mathematical relation that is typically used for comparing two (2) or more numerical data and variables in an algebraic equation based on any of the inequality symbols;
Greater than (>).Less than (<).Greater than or equal to (≥).Less than or equal to (≤).Based on the information provided, we have the following equation (inequality);
y < 2x + 1
The slope of the above equation (inequality) is 2 and the y-intercept of the boundary line is (1, 0). Additionally, the area below the dashed line must be shaded because the inequality symbol is less than (<).
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Find k if y = 64 and x = 16
Answer:
Can you give a picture of what we are answering
Step-by-step explanation:
Correlation always implies causation. Is this statement correct?
Answer:
Correlation does not always imply causation. (It's not correct)
Step-by-step explanation:
Correlation tests 2 variables' relationship, but just because they are related does not mean they necessarily cause each other.
Determine the mean, median, mode and midrange for the following data:
13 15 18 18 21
Your answers should be exact numerical values.
The mean of the data is
The median of the data is
The mode of the data is
The midrange of the data is
The Mean is 17, Median is 18, Mode is 18 and, Midrange is 17.
The Mean is defined as the ratio of sum of numbers present in the data to the total numbers present in the data. Median is defined as the ratio of sum of middle numbers present in the data. Mode is defined as the most recurring number present in the data. Midrange is the ratio of the largest and smallest number in the data to 2.
Let's see how to calculate Mean, Median, Mode and Midrange.
Mean = 13 + 15 + 18 + 18 + 21 / 5
Mean = 85 / 5
Mean = 17
Median = 18 (as it is the middle term of the data)
Mode = 18 (as it is most recurring number)
Midrange = 21 + 13 / 2
Midrange = 34 / 2
Midrange = 17
Therefore, The Mean is 17, Median is 18, Mode is 18 and, Midrange is 17.
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Kayden owns a small business selling ice-cream. He knows that in the last week 16 customers paid cash, 33 customers used a debit card, and 6 customers used a credit card.
If next week, he is expecting 400 customers, about how many would you expect to pay with a credit card? Round your answer to the nearest whole number.
Answer:
In linear equation, The number of customers who will pay by debit card will be 44.
Which equation is linear?
An algebraic equation with simply a constant and a first-order (linear) term, such as y=mx+b, where m is the slope and b is the y-intercept, is known as a linear equation.
Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.
16 + 33 + 6 = 55 customers.
That means that the fraction of the customers, who paid by debit card, was
6/55
In situations like that, when we use historical data and try to predict future behaviour, we use that past experience and extrapolate to a predicted result.
we simply say that we expect the same fraction, 1/30 if customers use credit cards.
for the absolute number of predicted debit card customers we multiply the predicted number of customers by the expected fraction
400 × 6/55 = 2400 /55 = 43.63 ≈ 44
Therefore the number of customers who will pay by debit card will be 44.
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Using a number cube and this hat with 5 different-colored marbles, which simulation would help you answer this question? During the first 70 days of school, Becca’s science class does a lab experiment 23 of the time. The class meets Monday through Friday. If you choose a class at random, what are the chances that Becca did a lab experiment on a Friday?
The solution is, given below.
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
We assume that the question is interested in the probability that a randomly chosen class is a Friday class with a lab experiment (2/15). That is somewhat different from the probability that a lab experiment is conducted on a Friday (2/3).
Based on our assumption, we want to create a simulation that includes a 1/5 chance of the day being a Friday, along with a 2/3 chance that the class has a lab experiment on whatever day it is.
That simulation can consist of choosing 1 of 5 differently-colored marbles, and rolling a 6-sided die with 2/3 of the numbers being designated as representing a lab-experiment day. (The marble must be replaced and the marbles stirred for the next trial.) For our purpose, we can designate the yellow marble as "Friday", and numbers greater than 2 as "lab-experiment".
The simulation of 70 different choices of a random class is shown in the attachment.
Comment on the question
IMO, the use of 70 trials is coincidentally the same number as the first 70 days of school. The calendar is deterministic, so there will be exactly 14 Fridays in that period. If, in 70 draws, you get 16 yellow marbles, you cannot say, "the probability of a Friday is 16/70." You need to be very careful to properly state the question you're trying to answer.
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A study of consumer smoking habits includes A people in the 18-22 age bracket (B of whom smoke), C people in the 23-30 age bracket (D of whom smoke), and E people in the 31-40 age bracket (F of whom smoke). If one person is randomly selected from this sample, find the probability of getting someone who is age 23-30 or smokes.
The correct question is:
A study of consumer smoking habits includes 167 people in the 18-22 age bracket (59 of whom smoke), 148 people in the 23-30 age bracket (31 of whom smoke), and 85 people in the 31-40 age bracket (23 of whom smoke). If one person is randomly selected from this sample, find the probability of getting someone who is age 23-30 or smokes
Answer:
The probability of getting someone who is age 23-30 or smokes = 0.575
Step-by-step explanation:
We are given;
Number consumers of age 18 - 22 = 167
Number of consumers of ages 22 - 30 = 148
Number of consumers of ages 31 - 40 = 85
Thus,total number of consumers in the survey = 167 + 148 + 85 = 400
We are also given;
Number consumers of age 18 - 22 who smoke = 59
Number of consumers of ages 22 - 30 who smoke = 31
Number of consumers of ages 31 - 40 who smoke = 23
Total number of people who smoke = 59 + 31 + 23 = 113
Let event A = someone of age 23-30 and event B = someone who smokes. Thus;
P(A) = 148/400
P(B) = 113/400
P(A & B) = 31/400
Now, from addition rule in sets which is given by;
P(A or B) = P (A) + P (B) – P (A and B)
We can now solve the question.
Thus;
P(A or B) = (148/400) + (113/400) - (31/400)
P(A or B) = 230/400 = 0.575
As an investment, a couple bought a house for 2.7 million. Two years later sold it for $5 million what was their profit
Find the missing side of this righttriangle.Х714x = V[?]Enter the number that belongs in the green box,
For this problem, we could use the pythagorean theorem as follows:
The pythagorean theorem states that the square of the hypotenuse equals to the sum of the square of each one of the sides of the triangle:
\(\begin{gathered} x^2=7^2+14^2 \\ x^2=49+196 \\ x^2=245 \end{gathered}\)Finally,
\(x=\sqrt[]{245}\)So, the number that you must put in the green box is 245.
Find the third iterate x3 of f(x) = 2x + 3
for an initial value of x0 = 2
a. 7
b. 15
c. 17
d. 37
For the function f(x) = 2x + 3 the third iterate x₃ is 37
To find the third iterate, x3, of the function f(x) = 2x + 3, given an initial value of x₀ = 2,
we can apply the function repeatedly.
Starting with x₀ = 2:
x₁ = f(x₀)
= 2(2) + 3
= 7
x₂ = f(x₁)
= 2(7) + 3 = 17
x₃ = f(x₂)
= 2(17) + 3
= 37
Therefore, the third iterate x₃ is 37.
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Answer help on this !
If the triangles are similar, then the angles are all congruent.
Therefore, we can start by setting the two middle angles equal to each other.
4x + 7 = 5x - 10
7 = x - 10
x = 17
Middle angle = 75
Now that we know our x-value, we can simply plug in x for our other two expressions.
3 * 17 = 51
4(17) - 14 = 54
We can check to make sure that our angle measures are correct by adding them all up and making sure they equal 180.
54 + 51 + 75 = 180
180 = 180
Hope this helps!! :)
Answer:
54, 51, 75
Step-by-step explanation:
4x+7=5x-10 because they are vertical angles and are therefore equal to eachother. x=17.
After plugging the 17 into the equations you get 4(17)+7=75. 3(17)=51. All angles in a triangle add up to 180. We already have 75 and 51 in the first triangle, to get the third length you need to subtract that from 180. 180-75+51=54.
The second triangle will give you the same lengths. 5x-10=75. 4(17)-14=54. Again, 180-75-54=51.
Your final lengths are 75,51,54.
judy gave 1/9 of her candies that she had to janet. with what she had remaining, she gave 1/2 to her brother. Judy now has 12 candies left. how many candies did she have at the beginning?
Multiplying and dividing fractions test
Answer:
ividing fractions test
Step-by-step explanation:
Answer:
dividing test
Step-by-step explanation:
. Graph and analyze the function f(x)=-|x+1|+2. A.) Use the graph provided below to graph f(x). Include at least 5 points and the vertex. B.) Describe the transformation from the parent function y=|x| to the function f(x). C.) State the domain and range of f(x). Use either set notation or interval notation. D.) State the vertex. Write as an ordered pair.
A) The given points on the graph are (-4, - 3), ( -3, 0 ), (-2, 1), ( -1, 2), (0, 1), and (1, 0 ).
B) The function f( x) is a reflection of the parent function.
C) The domain of f (x) is all real numbers, and the range is from negative infinity.
What is the domain?A function's domain is the set of all potential input values. It defines the value range for which the function is defined.
The vertex of a parabolic function is the point on the graph that indicates the function's highest or minimum value. The function's "turning point" is also known as this.
A Parent function is a fundamental or "template" function that represents a certain kind or family of functions. It may be altered to perform a variety of related functions.
A) note that the above graph is attached accordingly including at least 5 points and the vertex.
(-4, -3)
(-3, 0)
(- 2, 1)
( -1, 2)
(0, 1)
(1, 0 )
See the attached graph.
B) The function f(x) is a reflection of the parent function y=|x| over the vertical axis, shifted one unit to the left and two units up.
C) The domain of f(x) is all real numbers since the absolute value of any real number is always non-negative. All real numbers (-∞, ∞)
The range of f(x) is from negative infinity up to (but not including) 2, since the highest value f(x) can attain is 2 due to the vertical shift of the function, and it can take on any value less than 2 (down to negative infinity) due to the reflection and vertical stretching of the absolute value function. In interval notation, the range can be expressed as (-∞, 2).
D) The vertex of the function f(x)=-|x+1 |+2 is ( -1, 2)
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find the slope y intercept and liner Equations of each line.
just gave the answer
Answer:
1. slope= 1
y-intercept= 1
2. slope= -7/2
y-intercept= -3
3. slope= 0
y-intercept= 3
4. slope= 0
y-intercept= Undefined
5. slope= -2/3
y-intercept= 2
6. slope= 1/4
y-intercept= 1
Let f(x) = x + 1 and g(x) = 1/x The graph of (fog)(x) is shown below. What is the range of (fog)(x)?
Answer:
Range is \(\{y|y\neq 1\}\)
Step-by-step explanation:
\(f(x)=x+1\\g(x)=\frac{1}{x}\\ \\(f\circ g)(x)=f(g(x))=f(\frac{1}{x})=\frac{1}{x}+1\)
Thus, the range of the composite function is \(\{y|y\neq 1\}\), indicated by the horizontal asymptote.