your solution
4+13x=57
x=53÷4 = 13.25
cab fare in new york city is $7.50 for for the first mile, +$3 for each additional mile. what is the longest distance you can travel for $30
Answer:7
Step-by-step explanation:
Jada measured the height of a plant in a science experiment and finds that, to the nearest 1/4 of an inch, it is 4.75 inches.
The actual length of the tree based on the information is 19 inches.
How to calculate the word problem?A word problem in mathematics simply refers to a question that is written as a sentence or in some cases more than one sentence which requires an individual to use his or her mathematics knowledge to solve the real life scenario given.
Since Jada measured the height of a plant in a science experiment and finds that, to the nearest 1/4 of an inch, it is 4.75 inches.
The actual length will be:
= 4.75 × 4
= 19 inches
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Complete question
Jada measured the height of a plant in a science experiment and finds that, to the nearest 1/4 of an inch, it is 4.75 inches. What is the actual length of the tree?
Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options. The radius of the circle is 3 units. The center of the circle lies on the x-axis. The center of the circle lies on the y-axis. The standard form of the equation is (x – 1)² + y² = 3. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
The three true statements are:
The standard form of the equation is (x – 1)² + y² = 3.
The center of the circle lies on the x-axis.
The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
What is the center of the circle?
A circle is named by the point in the center. A radius is a line segment from the center of the circle to the edge. A diameter is a line segment that passes through the center of a circle.
The true statements are:
The standard form of the equation is (x – 1)² + y² = 3.
The center of the circle lies on the x-axis.
The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
Given an equation of x2 + y2 – 2x – 8 = 0, we can make the following observations:
We can complete the square to get the equation in standard form. (x – 1)² + y² = 3². This is true statement.
The center of the circle is (1,0) which is on the x-axis, this statement is true.
The radius is 3 units, which is the same as the radius of the circle x² + y² = 9 (3²). This statement is true.
The center of the circle does not lie on the y-axis as its x-coordinate is not 0.
Hence, The three true statements are:
The standard form of the equation is (x – 1)² + y² = 3.
The center of the circle lies on the x-axis.
The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
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in an equilateral triangle the altitude is sqrt7 find the length of the sides
Answer:
Length of each side = 3.055
Step-by-step explanation:
The relationship between altitude h and side a of an equilateral triangle is
[tex]h = \dfrac{\sqrt{3} }{2} a\\\\\\\rightarrow a = \dfrac{ 2h}{{\sqrt{3} }}\\\\[/tex]
Given h = √7.
we get
[tex]a = \dfrac{2\sqrt{7} }{\sqrt{3} }\\\\a = 2 \sqrt{\dfrac{7}{3}}\\\\a = 2\times 1.5275\\\\a = 3.055\\\\[/tex]
Express the area of the shaded region in the room shown algebraically
find the missing term in the series given below 3,12,25,42?88
Answer:
63
Step-by-step explanation:
the value of the difference between the terms increases by 4 as the series continues.
basically, this shows that the difference between 3 and 12 is 9, the difference between 12 and 25 is 13 (which is 4 more than 9), the difference between 25 and 42 is 17 (which is 4 more than 12), and so on.
using this pattern, all we have to do is find the next difference- the one between 42 and the missing term.
to do this, we take the previous difference, 17, and add 4. this gives us 21.
we then add 21 to 42 to get the next term: 63.
hope this helped, good luck!
Karin wants to use the distributive property to mentally find the value of
19⋅42+19⋅58
.
Which expression can she use?
Answer:
19(42 + 58)
Step-by-step explanation:
19(100)
1900
5 1/8 equals 4 + 1 + 1/8 = 4 + blank 8 + 1/8 =
The blanks in the equation are filled as below
5 1/8 = 4 + 1 + 1/8 = 4 + 1/8 8 + 1/8 = 5 1/8
How to fill the blanks in the equationTo fill the blanks the equation is written completely in figures
5 1/8 = 4 + 1 + 1/8 = 4 + 8 + 1/8 =
From the knowledge of equality to maintains a true equation the last blank should be equal to 5 1/8.
With this information, we use addition operation to solve for the first blank as follows.
let the first blank be x
4 + 8 + 1/8 = 5 1/8
4 + x * 8 + 1/8 = 5 1/8
4 + 8x + 1/8 = 5 1/8
collection like terms
8x = 5 1/8 - 4 - 1/8
8x = 1
divide both sides by 8
x = 1/8
the blanks are 1/8 and 5 1/8
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Question 2 (1 point) The results of a survey of 70 Programming students on learning preferences were as follows: 50 liked to learn visually, 45 liked learning through listening and 35 liked learning through videos. 5 liked using all three channels, 32 liked to learn visually and through listening, 22 liked to learn both visually and videos, 14 liked to learn through listening and videos. How many preferred learning only through videos? options-(9, 17 ,13, 4)
9 students preferred learning only through videos.
What is inclusion-exclusion from the data provided?Inclusion-exclusion is a principle used in counting to find the total number of elements in a union of sets by subtracting the elements that are counted multiple times and adding back in the elements that are not counted at all.
The number of students who preferred learning only through videos is 17.
This can be found by using the principle of inclusion-exclusion:
35 students liked to learn through videos
14 students liked to learn through listening and videos
5 students liked all three channels
So, 35 - 14 + 5 = 26 students liked to learn through videos and listening
Therefore, 35 - 26 = 9 students preferred learning only through videos.
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ABC is straight angle.BD is drawn so that two adjacent angles are created. m ABC = 22x - 9 and m CBD = 4x + 7. does BD bisector ABC?show your work.
Yes, BD is the bisector of ∠ABC.
What is geometry?Geometry is a branch of mathematics that deals with shapes, sizes, angles, and dimensions of objects.
Given is that ABC is straight angle. BD is drawn so that two adjacent angles are created. It is given that m ∠ABD = 22x - 9 and m∠ CBD = 4x + 7.
For BD to be the bisector of ∠ABC, ∠ABD and m∠ CBD should be equal. So we can write -
22x - 9 = 4x + 7
22x - 4x = 16
18x = 16
x = 8/9
Now, we can write -
m ∠ABD = 22x - 9 = 22 x 8/9 - 9 = 10.55°
m ∠ABD = 10.55° ...... (1)
m ∠CBD = 4x + 7 = 4 x 8/9 + 7 = 10.55°
m ∠CBD = 10.55° ...... (2)
m ∠ABD = m ∠CBD
Yes, BD is the bisector of ∠ABC.
Therefore, yes, BD is the bisector of ∠ABC.
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For the following exercises, find the level curves of each function at the indicated value of c to visualize the given function. h(x,y) = 2x-y, c=0, -2,2
The level curves of the function h(x,y) = 2x-y at c = 0, -2, 2 are y = 2x, y = 2x + 2, y = 2x - 2 respectively.
A level curve (also called a contour line or an isocline) of a function is a curve that represents all the points where the function has a constant value. To find the level curve of a function at a given value of c, we need to set the function equal to c and solve for the variables.
For h(x,y) = 2x-y, we can find the level curves at c = 0, -2, 2 by setting the function equal to c and solving for x and y:
c = 0: 2x - y = 0y = 2xc = -2: 2x - y = -2y = 2x + 2c = 2: 2x - y = 2y = 2x - 2The level curves of h(x,y) = 2x-y at c = 0, -2, 2 are the lines y = 2x, y = 2x + 2, y = 2x - 2 respectively. Each line represents a different value of c and separates the domain of x and y into different regions where the function takes on that constant value.
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Which of the following statements correctly reflect the rule governing rounding in a calculation? Select all that apply. Check all that apply. O The number of significant figures in the answer are determined by an average of the number of significant figures in all the quantities involved. O The least certain measurement determines the certainty of the answer. O Rounding is necessary when there are too many digits after a calculation. O All answers are rounded to two decimal places after a calculation. Read about this Do you know the answer?
The least certain measurement determines the certainty of the answer.
What guidelines apply when rounding sig figs?
(1) The final digit that is preserved is raised by one if the digit to be eliminated is greater than 5. As an illustration, 12.6 is rounded to 13.
(2) The last digit that remains is left alone if the digit to be dropped is less than 5. As an illustration, 12.4 is rounded to 12.
Which of the following statements best describes the significant figures rule?
Use the following 3 principles to calculate how many significant figures are present in a number: The significance of non-zero digits is constant.
A significant zero is one that comes in between two significant digits. ONLY the decimal part has any significance when there is a final zero or trailing zeros.
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Match the statistical measure to its notation or name. population mean [Choose ] sample mean [Choose) population variance [Choose] sample variance [Choose ]population standard deviation [Choose] sample standard deviation [Choose ] number of population data values [ Choose] number of sample data values [Choose]
Population Mean is the statistical indicator to its designation or nomenclature.
What is meant by Population Mean?A population is a distinct group of individuals that can be distinguished for the purposes of data collection and analysis by at least one feature. Populations are used in statistics and other branches of mathematics. The population mean can be computed by dividing the sum of all values in the given data/population by the total number of values in the given data/population. We can refer to the total of a set of numbers as a sum. An entire set of people is referred to as a population, regardless of whether that set includes an entire country or just a number of people who share a certain trait. In statistics, the group of people from which a statistical sample is taken for a research is referred to as a population.Therefore,
The formula for the population mean, which is the population's average score on a certain variable, is: μ = ( Σ Xi ) / N. The population mean is represented by the symbol "."
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From his eye, which stands 1.55 meters above the ground, Tyler measures the angle of elevation to the top of a prominent skyscraper to be 57^{\circ} ∘ . If he is standing at a horizontal distance of 112 meters from the base of the skyscraper, what is the height of the skyscraper? Round your answer to the nearest hundredth of a meter if necessary.
Answer: ≈ 174.01
Thus, The Sky Scraper ≈ 174.01
Step-by-step explanation:
From his eye, which stands 1.55 meters above the ground, Tyler measures the angle of elevation to the top of a prominent skyscraper to be 57∘
∘. If he is standing at a horizontal distance of 112 meters from the base of the skyscraper, what is the height of the skyscraper? Round your answer to the nearest hundredth of a meter if necessary.
1 - Draw Diagrams, Label Knowns:
Unknowns: X
2 - Identify: OPPOSITE, ADJACENT, HYPOTENUSE
3 - WHAT FUNCTION USES THE OPPOSITE AND THE ADJACENT?
SOH - CAH - TOA
NOW SHOWING WORK:
tan 57 = opposite/adjacent = x/112
tan 57 = x/112
tan 57/1 = x/112
112 tan 57 = x ( Cross Multiply)
x = 172.464875 (Now, type into the calculator)
So, Now we ADD:
1.55, the distance from the ground to his eye.
172.464875 + 1.55 = 174.014875
≈ 174.01 (Round to The Nearest HUNDREDTH)
Thus, the Sky Scraper is ≈ 174.01 meters tall.
So, your answer would be :
Sky Scraper ≈ 174.01
Hope I have explained it and helped you in your studies!
The height of the skyscraper is given by H = 174.01 m
What are trigonometric relations?Trigonometry is the study of the relationships between the angles and the lengths of the sides of triangles
The six trigonometric functions are sin , cos , tan , cosec , sec and cot
Let the angle be θ , such that
sin θ = opposite / hypotenuse
cos θ = adjacent / hypotenuse
tan θ = opposite / adjacent
tan θ = sin θ / cos θ
cosec θ = 1/sin θ
sec θ = 1/cos θ
cot θ = 1/tan θ
Given data ,
We can start by drawing a right triangle, where the horizontal distance from Tyler to the base of the skyscraper is one leg, the height of the skyscraper is the other leg, and the line of sight from Tyler's eye to the top of the skyscraper is the hypotenuse.
Then we can use trigonometry to solve for the height of the skyscraper.
Let the height above the ground from his eye = 1.55 m
Now , the angle of elevation θ = 57°
The horizontal distance from the base of the skyscraper = 112 m
Now , from the trigonometric relations ,
tan θ = opposite / adjacent
So , tan 57° = x / 112
Multiply by 112 on both sides , we get
x = 172.46 m
Now , the total height of the skyscraper = 172.46m + 1.55 m
So , height H = 174.01 m
Hence , the skyscraper has a height of 174.01 m
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Please help (Geometry)
PICTURE INCLUDED
Answer: [tex]\triangle TUS \cong \triangle QRP[/tex]
Step-by-step explanation:
When naming congruent triangles, corresponding vertices must have the same positions in the names of the triangles.
what is the slope through the line of (-6, -3) and (-2, -8)
Answer:m=-5/4
Step-by-step explanation: The formula for finding slope is y1-y2 / x1-x2 so when plugging in these coordinates, you get -3-(-8)/-6-(-2). When simplified -3-(-8) is 5 and -6-(-2) is -4, so the answer is -5/4. You can also switch the numbers so its -8-(-3) / -2-(-6) and still get the same answer.
Polynomial 1: 4x2
+ 5x − 4
Polynomial 2: 4x2
+ 4x − 2
Question 1
What is the difference when polynomial 2 is subtracted from polynomial 1?
Responses
A x − 2x − 2
B x − 6x − 6
C x + 6x + 6
D x + 2
Answer:
x + 2 (Choice D)
Step-by-step explanation:
The two polynomials are
P1 = 4x² + 5x - 4
and
P2 = 4x² + 4x - 2
P1 - P2
==> (4x² + 5x - 4 ) - (4x² + 4x - 2)
Expanding brackets we get
==> 4x² + 5x - 4 - 4x² - 4x + 2 (signs inside the second parentheses are
reversed because of the - sign preceding it)
Group similar terms and add the coefficients
==> (4x² - 4x²) +(5x - 4x) +(-4 + 2)
==> 0 + x + 2
==> x + 2 (Choice D)
A dinner was held to raise money for a children's museum. A ticket for one person cost $200 and a ticket for a couple (two people) cost $350. A total of 130 people attended the dinner, and the ticket sales total was $24,000. What is the total number of tickets that were sold?
There were 50 single tickets sold and 40 couples tickets were sold.
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that is equal.
Let's call the number of single tickets sold "x". Then the number of couple tickets sold would be "y".
We know the total number of attendees is 130, so we can write the equation:
x + 2y = 130
We also know that the total revenue from the ticket sales is $24,000, so we can write another equation using the cost of the tickets:
200x + 350y = 24,000
We now have a system of two equations that we can solve for x and y then we get the values are:
x = 50 and y = 40
So, 50 single tickets were sold and 40 couples tickets were sold.
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Mariah made a cylinder out of clay that had a radius of 6 cm and a volume of 72π cm^3. She painted the entire surface of the cylinder purple. How many square centimeters of the cylinder did Mariah paint in terms of π?
Enter the correct answer in the box in terms of π.
The square centimeters of the cylinder did Mariah paint in terms of π will be 24π cm².
What is the surface area of a right circular cylinder?Let r be the radius and h be the height of the cylinder. Then the surface area of the cylinder will be given as,
SA = 2πrh square units
Mariah made a cylinder out of clay that had a radius of 6 cm and a volume of 72π cm³. The height of the cylinder is calculated as,
V = πr²h
72π = π x 6² x h
72 / 36 = h
h = 2 cm
Then the surface area of the cylinder is given as,
SA = 2 x π x 6 x 2
SA = 24π square cm
The square centimeters of the cylinder did Mariah paint in terms of π will be 24π cm².
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Michelle made a bead necklace that was 13 inches long. The length of the necklace, in inches, is equal to 3 added to one-seventh the number of beads, b. How many beads did Michelle use for her necklace?
The number of beads used for Michelle necklace is 70.
How to find the number of necklace Michelle used for the necklace?Michelle made a bead necklace that was 13 inches long. The length of the necklace, in inches, is equal to 3 added to one-seventh the number of beads, b.
The number of beads Michelle used for her necklace can be calculated as follows:
number of beads she used for her necklace = b
Therefore,
13 = 3 + 1 / 7 b
13 - 3 = 1 / 7 b
10 = 1 / 7 b
cross multiply
b = 10 × 7
b = 70
Therefore,
number of beads she used for her necklace = 70
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Please help me please
Hong rode the scooter for 61 minutes.
What is the algebra?
Algebra is a branch of mathematics that deals with mathematical equations and their properties. It is a way to represent and solve problems using mathematical symbols, letters and numbers.
We can use algebra to solve for the number of minutes Hong rode the scooter. Let x be the number of minutes Hong rode the scooter.
We know that the total bill is the sum of the start fee and the per-minute fee.
So, we can set up the equation as:
Total bill = start fee + per-minute fee
In this case:
10.88 = 6 + (x * 0.08)
We can then solve for x by isolating it on one side of the equation:
10.88 = 6 + (x * 0.08)
10.88 - 6 = x * 0.08
4.88 = x * 0.08
x = 4.88 / 0.08
x = 61
So, Hong rode the scooter for 61 minutes.
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is 3x-2y=-5 & 3x-2y=8 parallel perpendicular intersecting but not perpendicular
If you solve 3x - 2y = -5 for slope-intercept form, you'd have:
y = 3/2 x + 5/2
If you solve 3x - 2y = 8 for slope-intercept form, you'd have:
y = 3/2 x - 4
Since the slopes are the same, but the y-intercepts are different, these lines are parallel.
What is the shape of the bases for the following polyhedron?
a. triangle
b. square
c.rectangle
d.circle
The shape of the bases for the following polyhedron depend on the type of polyhedron. For example, a triangular prism would have triangular bases, a square pyramid would have square bases, a rectangular prism would have rectangular bases, and a cone would have circular bases.
The shape of the bases for a polyhedron depend on the type of polyhedron. Polyhedra can have a variety of shapes, such as triangular, square, rectangular, and circular. For example, a triangular prism would have triangular bases, a square pyramid would have square bases, a rectangular prism would have rectangular bases, and a cone would have circular bases.
The shape of the bases for the following polyhedron depend on the type of polyhedron. For example, a triangular prism would have triangular bases, a square pyramid would have square bases, a rectangular prism would have rectangular bases, and a cone would have circular bases.
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Let f and g be the functions given by f (x) = e^x and g (x) = x^4. On what intervals is the rate of change of f (x) greater than the rate of change of g (x)? (A) (0.831, 7.384) only(B) (0.831) and (&.384)(C) (0.816) and (1.430, 8.613)(D) (0.816, 1.430) and (8.613)
The rate of change of a function at a point is given by its derivative. To compare the rate of change of f(x) and g(x) at different points, we need to find the derivative of both functions and compare them.as explained below :
The derivative of f(x) = e^x is f'(x) = e^x
The derivative of g(x) = x^4 is g'(x) = 4x^3
Now we need to compare the two derivatives to find on which intervals the rate of change of f(x) is greater than the rate of change of g(x). To do this, we will find the point of intersection between the two functions and compare them.
e^x = 4x^3
Taking the natural logarithm of both sides we get:
x = ln(4x^3) / ln(e)
Approximating we get x ≈ 0.816 and x ≈ 1.430 and x ≈ 8.613
For x < 0.816, e^x < 4x^3, so the rate of change of f(x) is smaller than the rate of change of g(x)
For x > 8.613, e^x > 4x^3, so the rate of change of f(x) is greater than the rate of change of g(x)
Between 0.816 < x < 1.430 and 1.430 < x < 8.613, e^x = 4x^3, so the rate of change of f(x) is equal to the rate of change of g(x).
So the answer is (D) (0.816, 1.430) and (8.613)
Note that the answer (B) (0.831) and (&.384) is not possible as the point of intersection is a number and not an interval and the answer (A) (0.831, 7.384) is not correct as the point of intersection is 1.430 and 8.613 not 0.831 and 7.384
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A company sells two different safes. The safes have different dimensions, but the same volume. What is the height of Safe B?
Answer:
h = 18 in.
Step-by-step explanation:
Both safes are in the shape of a rectangular prism
The volume of a rectangular prism = L X w X H
where L = length, W = width and H = height
Safe A has volume 18 x 15 x 24
Safe B has volume 20 x 18 x h
Both volumes are equal and we have to find h
Equating both expressions
20 x 18 x h = 18 x 15 x 24
Dividing by 18 on both sides will get rid of the 18 in the product
(20 x 18 x h)/18 = (18 x 15 x 24)/18
20h = 15 x 24
20h = 360
h = 360/20
h = 18 in.
Which expression can be used to find 6.3 x 4.2
Expression that can be used to find -6.3 x -4.2 are
(1): -4.7 - 2.3x + 0.5 - 4x
(2):-5.3x-4.2-x
(3):-3.4-6.3x-0.8
What is expression?Expression can be defined as a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction and multiplication
By Collecting like terms and adding the answer I get -6.3x - 4.2
(1):-4.7-2.3x+0.5-4x
Collect like terms
-2.3x-4x-4.7+0.5
-6.3x-4.2
(2):-5.3x-4.2-x
Collect like terms
-5.3x-x-4.2
-6.3x-4.2
(3): -3.4-6.3x-0.8
Collect like terms
-6.3x-3.4-0.8
-6.3x-4.2
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The option are:
-4.7 - 2.3x + 0.5 - 4x
-5.3x - 4.2 - x
-3.4 - 6.3x - 0.8
-6.2x - 4.2
-4.2x - 6.3
-3.7 - 5.3x + 0.5
multiple choice
During the week Jimmy spent $45 eating out, gained $55 mowing lawns and spent $15on gas. What was Jimmy's change in dollars at the end of the week?
The change in dollars at the end of the week is - $5
How to determine the amount received as changeFrom the question, we have the following parameters that can be used in our computation:
Amount spent = $45
Amount gained = $55
Amount spent on gas = $15
The change is then calculated as
Change = Amount gained - Amount spent - Amount spent on gas
Substitute the known values in the above equation, so, we have the following representation
Change = 55 - 45 - 15
Evaluate
Change = -5
Hence, the change is a deficit of $5
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On Rose's shelf are: 6 mystery books • 5 science books • 4 history books • 3 adventure books Rose will randomly choose 2 books to read one a time, without replacement. What is the probability that she will choose a science book first and an adventure book second?
Answer:
Step-by-step explanation:
The probability that ŕose will choose a science book first is 5/8 and the probability of the adventure book is 3/8
Let X be a number between 0 and 1 produced by a random number generator. Assuming that the random variable X has a uniform distribution, find the following probability: P(X > 0.49)
The probability of a random variable X with a uniform distribution being greater than 0.49 can be calculated using the formula P(X > 0.49) = 1 - P(X ≤ 0.49).
Since X has a uniform distribution, it means that the probability of any number between 0 and 1 occurring is the same. Therefore, P(X ≤ 0.49) = 0.49.
The probability of X being greater than 0.49 can be calculated using the formula for uniform distributions, which is P(X>a) = 1 - P(X≤a). In this case, P(X>0.49) = 1 - P(X≤0.49). The probability of X being less than or equal to 0.49 can be calculated by multiplying the probability of each individual outcome (since they are all equally likely) by the number of outcomes that satisfy the condition .Substituting this into the formula to calculate P(X > 0.49), we get P(X > 0.49) = 1 - 0.49 = 0.51. Therefore, the probability of a random number generated being greater than 0.49 is 0.51.
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8th grade geometry
First box options are is, is not. And the second box options are will, will not.
i. The tangent ratio for ΔRBK is 16/ 38.4
ii. The tangent ratio for ΔHMK is 8/ 19.2
What is a tangent of an angle?Trigonometric functions are set of functions that are applicable when the side or angle of a triangle is to be determined. Some basic trigonometric functions are: Sine, Cosine, Tangent etc.
The tangent of an angle relates its opposite side to the reference angle with the adjacent side to the same angle.
So that;
Tan θ = opposite/ adjacent
In the given question,
1. From ΔRBK, the tangent ratio is given as;
tan θ = opposite/ adjacent
= RB/ BK
but BK = BM + MK
= 19.2 + 19.2
= 38.4
So that;
tan θ = 16/ 38.4
2. From ΔRBK, the tangent ratio is given as;
tan θ = opposite/ adjacent
= HM/ MK
tan θ = 8/ 19.2
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