The exponential function f(x) = 400(1. 02)ˣ is $400 does the y-intercept mean in the context of the issue.
Given that,
Samra's guardians made a yearly compounding investment on her behalf in a 529 college savings plan. The exponential function f(x) = 400(1. 02)ˣ can be used to describe the growth of the savings plan on an annual basis, x.
We have to find what does the y-intercept mean in the context of the issue.
We know that,
The exponential function is f(x) = 400(1. 02)ˣ.
In this instance, the significance of the y-intercept in relation to the situation at hand is that the beginning value of the investment is equal to $400.
Therefore, The exponential function f(x) = 400(1. 02)ˣ is $400 does the y-intercept mean in the context of the issue.
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How do you prove ABC isosceles?
Triangle ABC to be isosceles we need to prove that opposite pair of sides of triangle ABC are congruent to each other.
Explanation :
Let us consider a triangle ABC,
To prove : Triangle ABC is an isosceles triangle.
In triangle ABC draw perpendicular bisector through point A to BC at point D.In triangle ADC and triangle ADB,
m ∠CAD ≅ m ∠BAD ( AD bisect angle A )
AD = DA ( common side )
m ∠ADC ≅ m ∠ADB ( each 90° )
By Angle side angle (ASA ) theorem ,
ΔADC ≅ΔADB
By congruence parts congruent triangles :
AC ≅ AB
Therefore, by congruence parts congruent triangles side AC ≅ AB implies ABC is an isosceles triangle.
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7) The initial fee to have a website getup using a server is $48. It costs $44 per month to maintain the
website. Write an equation that gives the total cost of setting up and maintaining the website as a
function of the number of months it is maintained.
Find the total of setting up and maintaining the website for 6 months.
Answer:
a.) c(t)=44t+48
b.) the total initial cost of setting up a website and maintaining it for 6 months is $312
Step-by-step explanation:
h
a 20 foot ladder is placed 5 feet from the base of a building. how high on the building will the ladder reach?
As calculated with the help of Pythagorean theorem, The ladder will reach 19.36 feet high on the building.
What is Pythagorean theorem?
The Pythagorean theorem, sometimes known as Pythagoras' theorem, is a fundamental Euclidean geometry relationship between the three sides of a right triangle. The square whose side is the hypotenuse, or the side across from the right angle, has an area equal to the sum of the areas of the squares on its other two sides. The Pythagorean equation, which connects the lengths of the sides B, P, and the hypotenuse H, can be used to express this theorem.
H² = B² + P²
As given in the question,
the length of the ladder is 20 ft. which will work as a hypotenuse of a right angled triangle,
The base is 5 ft.
we need to find the perpendicular line to the base.
Applying Pythagorean theorem.
H² = B² + P²
20² = 5² + P²
400 = 25 + P²
400 - 25 = P²
P = 19.36 ft.
Therefore, the ladder will go 19.36 ft. high on the building.
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What are the next three terms in the sequences below?
(1). 2,5,7,12,__,__,__
(2). 9,11,20,31,__,__,__
(3). 2,5,10,50,__,__,__
(4). 1,3,3,9,__,__,__
The area of the triangle formed by x and y intercepts of the parabola y=0. 5(x-3)(x+k).
The possible values of k are -0.56, -3.56, -2, and -1.
We have the equation of the parabola, y=0.5(x-3)(x+k)
When we Substitute x=0, we get that y=0.5*(-3) * k for instance y = -1.5k
So, the y-intercept is (0,-1.5k).
We will now substitute y=0, 0=0.5(x-3)(x+k) for instance 0=0.5(x-3)(x+k) x=3 and x=-k
So, the x-intercepts are (3,0) and (-k,0).
We can see that 'k' cannot be 0 or -3 since height = 0 if k=0, which is not conceivable. If k = -3, the base is also 0, which is not feasible.
We know that area of a triangle is 1/2*base*height
when we substitute we will get
1.5=1/2*(3+k) *(1.5k)
3=4.5k+1.5k^2
k=-0.56 and k=-3.56
or
1.5=1/2*(-3-k) *(1.5k)
3=-4.5k-1.5k^2
k=-2 and k=-1
hence the possible values of k will be -0.56, -3.56, -2, and -1.
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Your question is incomplete, most probably the full question was:
The area of the triangle formed by x− and y− intercepts of the parabola y=0.5(x−3)(x+k) is equal to 1.5 square units. Find all possible values of k.
What is an equation of the line that passes through the point (6,1)(6,1) and is perpendicular to the line 2x+3y=182x+3y=18?.
The equation of a line passes through (6,1) is 3x - 2y = 16.
Here we have to find the equation of a line.
Data given:
Point = (6,1)
The equation of another line is 2x + 3y = 18
From the given equation we can find the slope;
So we have
3y = -2x + 18
y = -2/3x + 18/3
So the slope is -2/3
As the line is perpendicular, so the slope of the line perpendicular to it will be 3/2
The general formula of the line is:
(y - y1) = m(x-x1)
(x1, y1) is the point
The point is (6,1 ) and the slope is 3/2
Now put that in the equation we get:
(y - 1) = 3/2(x - 6)
2y - 2 = 3x - 18
3x - 2y = 16
Therefore the equation is 3x - 2y = 16.
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Find the zeros of the equation by factoring. x2 + 9x + 20 = 0 factors should have two whole numbers separated by a: + or - . Do not type parentheses and no spaces. Examples: x+7 x-8
x=
X=
Answer:
Step-by-step explanation:
(x+4)(x+5) = 0
x = -4
x = -5
Jude types 840 characters in 5 minutes. What is her typing rate in characters per minute?
Answer now with steps and I will give brainliest. Use picture for reference.
The value of f(g(2)) is output of the function g(2) is in the input of f(x) which
is equal to 1.
What is a composite function?When the output of one function is given to the input of another function they are called composite functions.
In (fog)x which is [f{g(x)}] here the out of the function g(x) is the input of the function f(x).
From the graphs f(x) = -x + 5 and g(x) = x².
Now, f(g(2)) is the output of g(2) is the input of f(x).
g(2) = (2)².
g(2) = 4.
Now, f(g(2)) = -(4) + 5.
f(g(2)) = 1.
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4. Jennifer has a lemonade stand. She charges $1.25 for a glass of lemonade. It costs her $0.60 to make each glass of lemonade plus $15 a day for other expenses. Write an equation (do not solve) to determine how many glasses of lemonade, 1, Jennifer needs to sell each day in order to break even?
In order to break even,
Total charge for x glasses = Per day cost
1.25x = 0.6x + 15
What is an equation?
An equation is a mathematical statement that proves two mathematical expressions are equal in algebra, and this is how it is most commonly used. In the equation 3x + 5 = 14, for instance, the two expressions 3x + 5 and 14 are separated.
Let x be the number of glasses of lemonade Jennifer needs to sell each day
Total charge for x glasses = 1.25x
It costs her $0.60 to make each glass of lemonade:
=> For x glasses, cost = 0.6x
Per day cost = 0.6x + 15
In order to break even,
Total charge for x glasses = Per day cost
1.25x = 0.6x + 15
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Solve two and four-sevenths times two-thirds equals blank. one and fifteen twenty-firsts two and eight twenty-firsts two and twelve-fourteenths three and two-twelfths
After solving the given fraction, the resultant fraction is (A) 1 15/21.
What are fractions?Any number of equal parts is represented by a fraction, which also represents a portion of a whole.
A fraction, such as one-half, eight-fifths, or three-quarters, indicates how many components of a particular size there are when stated in ordinary English.
A fraction appears in the numerator or denominator of a complex fraction.
The numerator of a proper fraction is less than the denominator.
So, we have:
2 4/7 * 2/3
Now, solve the fraction as follows:
2 4/7 * 2/3
14+4/7 * 2/3
18/7 * 2/3
36/21
1 15/21
Therefore, after solving the given fraction, the resultant fraction is (A) 1 15/21.
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6. Tom's cousin, George, is three times as old as Tom. In 15
years, Tom will be two-thirds as old as his cousin, George.
How old is each of them in 15 years?
The answer to this Question based on ages is 20 years and 30 years
What is age?
The age is measure of how old the person is. It also gives us idea about how many years before he was born This data is used at various places in application forms medical form etc
Let age of Tom be x and age of George be y
given 1st condition george is 3 times as old as Tom
hence we can write y = 3x
After 15 years age of tom = x + 15 and age of George be y + 15
according to 2nd condition
x + 15 = 2/3(y + 15)
3x + 45 = 2y + 30
2y - 3x = 15
put y = 3x here
2(3x) - 3x = 15
3x = 15
x = 5
and y = 3(5)
y = 15
present age of tom = 5 years and after 15 years he will be 20 years old
present age of george = 15 tears and after 15 years he will be 30 years old
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hippocrates magazine states that 35 percent of all americans take multiple vitamins regularly. suppose a researcher surveyed 750 people to test this claim and found that 296 did regularly take a multiple vitamin. is this sufficient evidence to conclude that the actual percentage is different from 35% at the 5% significance level? select the [p-value, decision to reject (rh0) or failure to reject (frh0
The solution to this problem is , we reject null hypothesis R H0 at p value =0.005 .
What is significance level ?The likelihood of rejecting the null hypothesis when it is true is the significance level, often known as alpha or. A significance level of 0.05, for instance, represents a 5% likelihood of drawing the incorrect conclusion that a difference exists when there isn't one.
Given that Hippocrates magazine states that 35 percent of all Americans take multiple vitamins regularly.
Persons surveyed = 750
Of those survived no of persons who took multiple vitamin = 296
Sample proportion = p =0.395
q =1-p = 0.605
[tex]H_{0}\\[/tex] : p= 0.35
[tex]H_{A}[/tex] : p ≠ 0.35
(Two tailed test)
Assuming H0 is true standard error = [tex]\sqrt{(0.35 * 0.65)/750}[/tex]
=>0.0174
p difference = 0.045
Test statistic = 0.045/0.0174
=>2.58
p value = 0.005 for right tailed
Reject H0:
Therefore , we reject R H0 at p value =0.005 .
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At the beginning of spring, Allison planted a small sunflower in her backyard. When it was first planted, the sunflower was 15 inches tall. The sunflower then began to grow at a rate of 2 inches per week. How tall would the sunflower be after 9 weeks? How tall would the sunflower be after w weeks?
Answer:
Hope this helps you out
Step-by-step explanation:
After 9 weeks, the sunflower would be 39 inches tall.
After w weeks, the sunflower would be 15 + (2 * w) inches tall.
Which of the statements are true about the function f given by f(x) = 100 • e^-x
Select all that apply. s
A. The y-intercept of the graph off is at (0, 100).
B. The values f increase when x increases.
C. The value of f when x = -1 is a little less than 40.
D. The value of f when x = 5 is less than 1.
E. The value of f is never 0.
Answer:
A. The y-intercept of the graph of f is at (0, 100).
D. The value of f when x = 5 is less than 1.
E. The value of f is never 0.
The first two statements are not true because the function f is defined by the equation f(x) = 100 • e^-x, where e^-x is the base of the natural logarithm (commonly known as "e") raised to the power of -x. Since e is always greater than 1, the value of e^-x will always be between 0 and 1, so the function f will always decrease as x increases. This means that statements B and C are not true.
Step-by-step explanation:
the international air transport association surveys business travelers to develop quality ratings for transatlantic gateway airports. the maximum possible rating is 10. suppose a simple random sample of business travelers is selected and each traveler is asked to provide a rating for the miami international airport. the ratings obtained from the sample of business travelers follow.
A confidence interval estimate of the population mean rating for Miami is:
Confidence interval:
(Mean - E) ≤ μ ≤ (mean + E)
(7.52 - 0.6578) ≤ μ ≤ (7.52 + 0.6578)
6.8622 ≤μ≤ 8.1778
Now, According to the question:
Given the data:
2 6 7 8 9 9 9 10 10 10 10 9 4 5 6 6 8 7 9 10 9
6 5 7 6 8 4 2 10 9 9 10 10 9 8 7 5 9 9 3 6 2 9
7 10 7 9 9 9 9
Assume a confidence interval of 95%
Using calculator :
The mean of the distribution (m) = 7.52
Standard deviation (s) = 2.314
Sample size),
Obtaining the t score ;
Degree of freedom (df) = (n-1) = 50 - 1 = 49
t(1-α/2), 49 = t(0.025, 49) = 2.01 ( t distribution table)
Margin of Error :
2.01 * s/√n = 2.01 * 2.314/7.0710678
Margin of Error (E) = 0.6578
Confidence interval:
(Mean - E) ≤ μ ≤ (mean + E)
(7.52 - 0.6578) ≤ μ ≤ (7.52 + 0.6578)
6.8622 ≤μ≤ 8.1778
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The complete question is this:
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of business travelers is selected and each traveler is asked to provide a rating for the Miami International Airport. The ratings obtained from the sample of business travelers follow.
2 6 7 8 9 9 9 10 10 10 10 9 4 5 6 6 8 7 9 10 9
6 5 7 6 8 4 2 10 9 9 10 10 9 8 7 5 9 9 3 6 2 9
7 10 7 9 9 9 9
Required:
Develop a confidence interval estimate of the population mean rating for Miami.
Identify the measure of angle x:
Answer:
79°
Step-by-step explanation:
All three of the angles form a straight line = 180°
28 + x + 73 = 180
x = 79°
Answer:x=79
Step-by-step explanation:
The number of badgers in a forest increases
by 20% each year.
This year, there are 200 badgers in the forest.
Calculate the number of badgers that there will
be in the forest
a) after 1 year.
b) after 2 years.
By evaluating the exponential equation for the population:
P(x) = 200*(1.2)^x
We will get:
a) 240 badgers
b) 288 badgers
How to calculate the number of badgers after x years?We know that the number of badgers increases by 20% each year, that increase after x years is given by the exponential equation:
P(x) = A*(1 + 20%/100%)^x
P(x) = A*(1.2)^x
Where A is the initial amount.
Here we know that the initial population of badgers is 200, then we have:
P(x) = 200*(1.2)^x
a) To find the population after one year, we need to evaluate the exponential equation in x = 1, we will get:
P(1) = 200*1.2^1 =240
b) The population after 2 years is:
P(2) = 200*1.2^2 = 288
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Which point is on the line that passes through point h and is perpendicular to line fg? (–6, 10) (–2, –12) (0, –2) (4, 2)
The point is on the line that passes through point h and is perpendicular to line fg is (-6, 10).
You can get the equation of the blue line and then determine which point is on the perpendicular line to that blue line, but you can alternatively work this out physically simply by examining the points.
The slope of the perpendicular lines is negative reciprocals.
So if FG is 3/4, it would be -4/3.
The slope is calculated as m = (y2-y1)/(x2-x1).
So, in order to acquire the solution, we will enter these values (6,6) till we reach the following result: -4/3
m= (10-(-6)/(-6-6) (-6-6)
m = 16/-12
m= -4/3
As a result, the ultimate answer to this question is A) (-6, 10)
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Answer:
The point is on the line that passes through point h and is perpendicular to line fg is (-6, 10).You can get the equation of the blue line and then determine which point is on the perpendicular line to that blue line, but you can alternatively work this out physically simply by examining the points. The slope of the perpendicular lines is negative reciprocals.So if FG is 3/4, it would be -4/3.The slope is calculated as m = (y2-y1)/(x2-x1).So, in order to acquire the solution, we will enter these values (6,6) till we reach the following result: -4/3m= (10-(-6)/(-6-6) (-6-6)m = 16/-12m= -4/3As a result, the ultimate answer to this question is
Step-by-step explanation:
The point is on the line that passes through point h and is perpendicular to line fg is (-6, 10).You can get the equation of the blue line and then determine which point is on the perpendicular line to that blue line, but you can alternatively work this out physically simply by examining the points. The slope of the perpendicular lines is negative reciprocals.So if FG is 3/4, it would be -4/3.The slope is calculated as m = (y2-y1)/(x2-x1).So, in order to acquire the solution, we will enter these values (6,6) till we reach the following result: -4/3m= (10-(-6)/(-6-6) (-6-6)m = 16/-12m= -4/3As a result, the ultimate answer to this question is
a stop sign is a regular octagon, formed by cutting triangles off the corners of a square. if a stop sign measures 36 in. from top to bottom, what is the length of each side of the octagon?
The length of each side of the sign will be 14.81-inch approx.
It is assumed that an Octagon sign is created by cutting out triangles from a square's corners, and that the stop sign's overall length is 36 inches. Since we are aware that squares have right angles on all four sides, we can use Pythagoras' theorem to solve for the side of the sign in the image below.
[tex]s^{2} =x^{2} +x^{2} \\s^{2}=2x^{2} ...................Eq.1[/tex]
Also, it is a square. So, the measurement of length from side to side
[tex]2x+s=36....................Eq.2[/tex]
solving Eq.1 we get,
[tex]s=\sqrt{2} x[/tex]...putting this value in Eq.2,
[tex]s=36-2x\\\\\sqrt{2} x=36-2x\\\\x=\frac{36}{2+\sqrt{2} }[/tex]
Putting this value of x in Eq.1,
s = 14.8
Hence, The length of each side of the sign will be 14.81-inch approx.
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In order for a school to allow a vending machine to be placed next to the cafeteria, 65% of the school’s population must ask for it. If 340 of the school’s 650 students have requested the vending machines, how many more are needed to get the vending machines?
Show your work!
Using percentages, we know that 83 students more are needed to vote for the vending machine.
What is the percentage?Additionally, "pct," "pct," and occasionally "pc" are used. A % is a number without dimensions and without a standard measurement.
For instance, you would have received a 75% grade if you answered 75 out of 100 questions correctly on a test (75/100).
So, 65% of the school population is:
650/100 * 65
422.5
Rounding off: 423
Students voted for vending machines is 340.
A number of more votes/asks for the vending machine will be:
423 - 340
83
Therefore, using percentages, we know that 83 students more are needed to vote for the vending machine.
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At the fisher farm, the weights of zucchini squash are normally distributed, with a mean of 5 ounces and a standard deviation of 0. 7 ounces. Which weight represents the top 10% of the zucchinis?.
Weight represents the top 10% of the zucchinis is 5.9
The formula for calculating a z-score is z = (x-μ)/σ,
where x is the raw score
μ is the population mean
σ is the population standard deviation.
We're looking for:
Weight is 10% of zucchinis at the top.
Top 10% = 90% of the population
90th percentile Z score is 1.282.
Hence
1.282 = x - 5 / 0.7
1.282 × 0.7 = x - 5
0.8974 = x - 5
x = 5 + 0.8974
x = 5.8974
5.9 ounces, roughly.
The top 10% of the zucchinis have a weight of 5.9 ounces.
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At a bowling alley, the cost of shoe rental is $2. 55 and the cost per game is $3. 75. If f (n) represents the total cost of shoe rental and n games, what is the recursive equation for f (n)?.
The recursive equation for f( n ) is f( n-1 ) + 3.75
Any term of a sequence in terms of its preceding terms is a recursive equation. The equation can be defined as a mathematical statement made up of expressions. For example, b (n ) = 2b ( n-1 ) + 4 is a recursive equation.
As per the question,
The cost of shoe rental ( c ) = 2.55The cost per game ( g ) = 3.75number of games = nThe total cost of shoe rental = f ( n ) The recursive equation for f ( n ) = ?As we know,
⇒ f ( n ) = total cost
= g × n + c
f ( n ) = 3.75 ( n ) + 2.55
Replace n with n - 1,
⇒ f ( n - 1 ) = 3.75 ( n - 1 ) + 2.55
⇒ f ( n - 1 ) = 3.75 n - 3.75 + 2.55
⇒ f ( n - 1 ) = 3.75 n + 2.55 - 3.75
⇒ f ( n - 1 ) = f ( n ) - 3.75
⇒ f ( n ) = f ( n - 1 ) + 3.75
Therefore, f( n-1 ) + 3.75 is the recursive equation for f ( n ).
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How do you prove SAS congruence rule?
The prove the SAS congruence rule, two sides and one angles between the includes sides of the triangle and the two sides and one angles between the includes sides of the another triangle should be equal
The SAS congruence rule is used to prove the congruence of the one triangle angle and another triangle.
SAS congruence rule stands for the side-angle-side congruence rule of triangles.
Side-angle-side rule of congruence states that if two sides and one angles between the includes sides of the triangle is equal to the two sides and one angles between the includes sides of the another triangle, then the both the triangles are congruent
Therefore, to prove the SAS congruence rule two sides and one angle of both triangle should be equal
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PLEASE ANSWER ASAP! Choose ALL equations that would create a parallel line to y=78x+9
The equation of the parallel to y = 7/8x + 9 will be y = 7/8x+11, 7x - 8y = 3, and (y-6) = 7/8(x-1).
What is an equation of the line?An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line:-
y = mx + c
m = slope
c = y-intercept
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given that the equation of the line is y = 7/8x+9. For the equation to be parallel the slope of the line must be the same.
The equations having the same slope of the line as that of y = 7/8x + 9 are,
y = 7/8x+11,
7x - 8y = 3,
(y-6) = 7/8(x-1)
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A company offers premium cable for 39.96 pet month plus a one time set fee. The total cost for setup and 6 months I'd 264.70 wrote and solve a linear equation
The cost per month is 39.96, the setup fee is 24.94, and the equations are x = 39.96 and 6x + y = 264.70.
What is equation?A formula known as an equation uses the equals sign to denote the equality of two expressions.
Given data:
A company offers premium cable for 39.96 per month plus a one-time set fee,
The total cost for setup and 6 months I'd 264.70
Write the equation as shown below,
The number of months × price per month + one-time setup fee = total cost
Calculate the equations,
x = number of months, y = setup fees
1 × x + y = 39.96 ⇒ x = 39.96 (y = 0 for one month)
6 × x + y = 264.70 ⇒ 6x + y = 264.70
Solve the above equation by the elimination method
x = 39.96 and y = 24.94
Therefore, the cost per month is 39.96, the setup fee is 24.94, and the equations are x = 39.96 and 6x + y = 264.70.
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Please hurry and answer these questions, I don't have much time!
Max Points: 100,
I will also give brainliest.
Answer:
1. 20 minutes (segment A)
2. 40 minutes (segment B)
3. 10 minutes (segment C)
4. 10 minutes (Segment D minus Segment B)
5. Segments C & E (approaching x axis)
6. Segment A (greatest slope)
7. 115 minutes
From a hot-air balloon, Adriel measures a 22° angle of depression to a landmark
that's 743 feet away, measuring horizontally. What's the balloon's vertical distance
above the ground? Round your answer to the nearest hundredth of a foot if necessary.
The balloon's vertical distance above the ground is 300.19 feet.
What is angle of depression?
If the line of sight is directed downward from the horizontal line, then an angle is created with the horizontal line. The angle produced between the horizontal line and the observer's line of sight is known as the angle of depression if the object being observed is below the observer's level.
Given that a balloon make 22° angle with a fixed point. The horizontal distance of the balloon along the ground is 743 feet.
Here need to find the vertical distance.
To find the vertical distance, use tangent of 22°. The tangent of angle is the ratio of vertical distance to horizontal distance.
Therefore,
tan 22° = vertical distance/ horizontal distance
tan 22° = vertical distance/ 743
Multiply both sides by 743:
vertical distance = 743 × tan 22°
vertical distance = 300.191
vertical distance = 300.19 ( rounding to the nearest hundredth)
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Can you guys work your mathical math ASAP
Answer:
216.025 I think
Answer: S=237.5 in
Step-by-step explanation:
S=2(5)(6,5)+2(6.5)(7.5)+2(5)(7.5)
S=6,5(10)+97.5+7.5(10)
S=65+97.5+75
S=237,5 in
For which of the following x-values is k(x) =80?
By reading the graph we can see that k(x) = 80 for x ∈ (5, 6]
For which value of x is k(x) = 80?Look at the graph and try to identify the line where y = 80, now move to the right until you hit the graph of k(x) (red graph).
Now, move downwards until you intercept the x-axis, that value in the x-axis is the input that gives k(x) = 80.
In this case, there is a set of values.
The open circle means taht the value does not belong to the set.
The closed circle means taht the value does belong to the set.
Then k(x) = 80 for all the values of x in the set:
(5, 6]
Learn more about graphs:
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