Answer:
7.5
Step-by-step explanation:
7.52100840336
How tall is the tree?
5ft
35°
-20ft-
[?]ft
Round to the nearest foot.
Answer:
19
Step-by-step explanation:
tan35=x/20
20tan35=x
x=14.0041507641942
x+5=19.0041507641942
The nearest foot is 19
The beginning balance on the monthly bank statement for Peyton's checking
account was $346.19, and the ending balance was $198.34. What can be said
about Peyton's transactions for the month?
O A. He had $147.85 more in credits than in debits.
O B. He had $544.53 more in credits than in debits.
.
O c. He had $544.53 more in debits than in credits.
O D. He had $147.85 more in debits than in credits.
Answer:
A: He had $147.85 more in credits than in debits.
Step-by-step explanation:
Given that 5 x : 9 = 8 : 3 Calculate the value of x . Give your answer in its simplest form.
Benjamin goes out to lunch. The bill, before tax and tip, was $18.55. A sales tax of 4% was added on. Benjamin tipped 23% on the amount after the sales tax was added. What was the total cost of the meal, plus tax and tip? Round to the nearest cent.
a boat is tied to a dock using 2 ropes. what is the length of rope A?
A bag contains 10 green,8 blue, and 2 white balls. Naomi seclets 2 balls from the bag at random, one at a time, without replacing them. What is the probability that she selects all two white balls?
E.) 2/95
F.) 1/95
G.) 1/190
H.) 1/380
To find the probability that Naomi selects both white balls, we need to consider the total number of possible outcomes and the number of favorable outcomes.
Total number of outcomes:
Naomi selects 2 balls without replacement, so the total number of outcomes is the number of ways she can choose 2 balls out of the total number of balls in the bag. This can be calculated using combinations:
Total outcomes = C(20, 2) = (20!)/(2!(20-2)!) = (20 * 19)/(2 * 1) = 190
Number of favorable outcomes:
Naomi needs to select 2 white balls. There are 2 white balls in the bag, so the number of favorable outcomes is the number of ways she can choose 2 white balls out of the 2 white balls in the bag:
Favorable outcomes = C(2, 2) = 1
Probability = Favorable outcomes / Total outcomes = 1/190
Therefore, the correct answer is (G) 1/190.
PLS HELPPPPPPP!!!!!!!
A) find the smallest 4 natural numbers, that have the greatest common divider 6 with 48
B) find all natural numbers whose smallest common multiple with 36 is 540
(a) The 4 smallest natural numbers are 6, 18, 30, and 42.
(b) All natural numbers whose smallest common multiple with 36 is 540 are 108, 180, and 540.
(a) The prime factors of 48 are:
48 = 2 × 2 × 2 × 2 × 3 = 2⁴ × 3
The prime factors of 6 are:
6 = 2 × 3
Therefore, The four smallest numbers that have a 6 and a 48 as their greatest common factor are as follows:
2 × 3 = 6
2 × 3 × 3 = 18
2 × 3 × 5 = 30
2 × 3 × 7 = 42
(b) The factors of 36 are:
36 = 2 × 2 × 3 × 3
The factors of 540 are:
540 = 2 × 2 × 3 × 3 × 3 × 5
Therefore, the smallest common multiple with 36 is 540:
108 = 2 × 2 × 3 × 3 × 3
180 = 2 × 2 × 3 × 3 × 5
540 = 2 × 2 × 3 × 3 × 3 × 5
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3 1/2÷5/8=?
please explain
please help me !! find the missing side and round to the nearest tenth !!
you run a delivery service between two small islands which are connected by a bridge and connected to the mainland by several bridges as shown in the picture below. the river separates the top mainland from the bottom mainland. you cannot get from the top of the mainland to the bottom of the mainland without passing through an island.
Answer:
"Through" (and any subsequent words) was ignored because we limit queries to 32 words.
Ali, Basti and Cian stand at three points A, B and C respectively. Suppose that the measure of angle ABC is 50 degrees , the measure of angle BAC is 60 degrees and Ali is exactly 150 ft away from Basti. Find the distance between Basti and Cian.
To find the distance between Basti and Cian, we can use the law of sines in triangle ABC. The law of sines states that the ratio of the length of a side to the sine of the opposite angle is constant for all sides and their corresponding angles in a triangle.
Let's label the distance between Basti and Cian as "x". We know that the measure of angle ABC is 50 degrees and the measure of angle BAC is 60 degrees. We also know that Ali is exactly 150 ft away from Basti.
Using the law of sines, we can set up the following equation:
sin(50°) / 150 = sin(60°) / x
To solve for "x", we can rearrange the equation:
x = (150 * sin(60°)) / sin(50°)
Using a calculator, we can evaluate the expression:
x ≈ (150 * 0.866) / 0.766
x ≈ 168.4 ft
Therefore, the distance between Basti and Cian is approximately 168.4 ft.
Find the length of the missing hypotenuse i’ll be right triangle if the two legs have links five and 12. Hypotenuse=
The hypothenuse of a right triangle is calculated as:
\(hypothenuse=\sqrt{a^2+b^2}\)Where a and b are the other two sides of the right triangle.
In this case, a=5 and b=12, then the hypotenuse is:
\(\begin{gathered} hypothenuse=\sqrt{5^2+12^2} \\ hypothenuse=\sqrt{25+144} \\ hypothenuse=\sqrt{169} \\ hypothenuse=13 \end{gathered}\)Then, the answer is that the hypothenuse has a lenght of 13.
Solve for m. 2 - 6m = -4m+10 (m=__) also 2.5+1.75= -3.25+1.5x (x=__)
Value of m is -4
Value of x is 5
To solve linear equations, follow the following steps:
Clear fractions and decimals.Simplify each side of the equation by removing parentheses and combining terms.Isolate the variable term on one side of the equation keeping the other terms separateSolve the equation by dividing each side of the equation mathematicallyMatch your steps and the final solution with the correct solutionEquation 1.
2-6m = -4m+10
6m-4m = 2-10
2m = -8
m = -8/2
m = -4
Value of x is -4
Equation 2.
2.5+1.75 = -3.25+1.5x
1.5x = 4.25+3.25
1.5x = 7.5
x = 7.5/1.5
x = 5
Value of x is 5
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If a rectangular patio has a length that is 5 feet longer than its width and a perimeter of 54 feet, solve for the length.
1)17 feet
2)21 feet
3)16 feet
4)11 feet
Answer: (3)
Step-by-step explanation:
In this problem, we don't know the length or width. All we do know is that the length is 5 feet longer than the width, and that the perimeter is 54 feet. Both lengths plus both widths equals the perimeter. To solve this problem, you must give the width, the value of x.
Step 1: Draw a rectangle where the width is x and the length is x + 5.
Step 2: Find the sum of the lengths and the sum of the widths
2 times the length plus 2 times the width equals the perimeter
2(x + 5) + 2(x) = 54
Step 3: Solve for the width
2(x + 5) + 2(x) = 54
2x + 10 + 2x = 54 (Distributive Property)
4x + 10 = 54 (Group Like Terms)
4x = 44 (Subtraction Property of Equality)
4x/4 = 44/4
x = 11 (Division Property of Equality)
x = width = 11
Step 4: Solve for the length
x + 5 = length
11 + 5 = 16
Length = 16. So (3) must be the answer.
Let x and y be functions of time t such that the sum of x and twice y is constant. Which of the followingequations describes the relationship between the rate of change of with respect to time and the rate ofchange of with respect to time?A) dx/dt=2dy/dtB) dx/dt=-2dy/dtC) 2dx/dt+dy/dt=0D) dx/dt + 2dy/dt=K, where K is a function of t
The equation describes the relationship between the rate of change of with respect to time and the rate of change of with respect to time is dx/dt -2 dy/dt
What are functions?In mathematics, a function is an expression, rule, or law that establishes the relationship between two variables (the dependent variable). Mathematics is rife with functions, and the sciences depend on them for constructing physical relationships. One input results in one output when using a function, which is a type of rule. by Alex Federspiel, the photo's author. Here, y=x2 serves as an illustration. A single output for y results from any input for x. Since x is the input value, we would state that y is a function of x.Well x + 2y = k (constant)
differentiate through wrt t
dx/dt + 2 dy/dt = 0
so dx/dt -2 dy/dt (so B)
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ANSWER ASAP I WILL GIVE BRAINLIST
Answer:
its upside down
Step-by-step explanation:
PLEASE MARK ME AS BRAINLIEST
Answer:
-2/x²-1
Step-by-step explanation:
p(x)-q(x)
(1/x+1) - (1/x-1)
(x-1)/((x+1)(x-1)) - (x+1)/((x+1)(x-1))
x-1-x-1 / x²-1
-2/x²-1
How do you find the margin of error for the difference between means?
The margin of error can be calculated in two ways, depending on whether you have population parameters or sample statistics:
Margin of error (parameter) = critical value x population standard deviation Margin of error (statistic) = Critical value x Sample standard error
What is a margin of error?A margin of error is a statistical metric that accounts for the difference between actual and projected survey results in a random sample.
In layman's terms, the margin of error measures the degree of unpredictability in data and research results. The margin of error formula is calculated by multiplying a critical factor. The result is then divided by the square root of the sample's number of observations.
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Find the complete factored form of the
polynomial :
-8m²n-7m² nª
Enter the correct answer.
The polynomial -8m²n - 7m²n can be factored using the common factor -m²n. The complete factored form of the polynomial is (-m²n) (8 + 7a).
To find the complete factored form of the polynomial -8m²n - 7m²n, we can factor out common terms from both the terms. The common factor in the terms -8m²n and -7m²n is -m²n. We can write the polynomial as:
-8m²n - 7m²n = (-m²n) (8 + 7a)
Therefore, the complete factored form of the polynomial -8m²n - 7m²n is (-m²n) (8 + 7a). This expression represents the original polynomial in a multiplied form. We can expand this expression using distributive law to verify that it is equivalent to the original polynomial.
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1. la señora Treviño tiene el doble de edad que su
hijo hace 9 años la suma de su edades era 30
¿cual es su edad actual?
Answer:
Daughter age = x = 16 years old
Mother's age = 2x = 2 × 16 = 32 years
Step-by-step explanation:
The computation of their current age is shown below:
Let us assume that the current age of the daughter is x
And, the current age of the mother be 2x
Now nine years ago, their ages would be
daughter age is x - 9
And, the mother age would be 2x - 9
Now the equation would be
x - 9 + 2x - 9 = 30
3x - 18 = 30
3x = 30 + 18
3x = 48
x = 48 ÷ 3
x = 16.
Therefore
Daughter age = x = 16 years old
Mother's age = 2x = 2 × 16 = 32 years
A teacher wants to know students post-graduation plans. He surveys his homeroom class and learns that most students plan to become soldiers. The inference is valid or not valid
Based on the information provided, the inference that a significant number of students in the homeroom class plan to become soldiers is valid.
The teacher surveyed his homeroom class about their post-graduation plans. He found out that most of his students plan to become soldiers.
An inference is a conclusion that can be drawn from a given set of data. In this case, the inference that can be made is that a significant number of students in the homeroom class plan to become soldiers.Therefore, the inference is valid based on the data provided.
However, it is essential to keep in mind that the sample size in the homeroom class is relatively small and may not be representative of the entire population. If the teacher had surveyed a more extensive and diverse population, the results might have been different.
In conclusion, based on the information provided, the inference that a significant number of students in the homeroom class plan to become soldiers is valid. However, this may not apply to the entire population, and it is crucial to consider the sample size when drawing inferences.
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The Peel District School Board is one of Canada's largest public school boards. It serves the 776 square kilometers of Peel Region with schools in Mississauga, Brampton and Caledon. Peel District School Board serves a total of 232 schools; 196 elementary and 35 secondary schools. Enrolment in September 2007 was 105,549 elementary students and 44,068 secondary students. The Board currently employs 9,900 academic staff and 3,300 business and support staff. It hired more than 850 new teachers in 2006-07 to keep up with rising enrolment and replace retiring teachers. As HR analyst for the PDSB, your focus is the organization's Secondary School Division. You need to determine (1) the total number of positions that will require replacement over the next one-year period and (2) the impact these opening will have on the current employees' movements throughout the division. The PDSB has a strong "promote from within" policy for all vacancies above the entry level. The Secondary School Division does not have any personnel in authority levels 1 or 2. The most senior position in the Secondary School Division is at Level 3 (Secondary Division Superintendent). Based on information from the Board's enrolment system and HRIS, you know the following: 1. Historical annual loss rates include the following: a. Retirements (requiring replacements): Levels 3 and 4 = none. Level 5 = 5% of positions at start of period. Levels 6, 7 and 8 = 10% of positions at start of period. b. Attrition (voluntary and involuntary exits): Levels 3 and 4 = none. Levels 5 and 6 = 3% of positions at start of period. Levels 7 and 8 =2% of positions at start of period. 3. The number of positions at the start of the 2006-07 school year are as follows:Level 1 (Director) = 1 Level 2 (Assistant Director) = 4 Level 3 (Secondary Division Superintendent) = 1 Level 4 (Area Superintendent) = 5 Level 5 (Principal) = 35 = Level 6 (Vice Principal) = 105 Level 7 (Department Head) = 350 Level 8 (Teacher) = 2410 Your task: 1. Use the information above to calculate the number of positions to be filled in the next year. Show your calculations and results in the first table form provided. An example is provided on page 153 of the textbook. 2. Use the information from the "Positions to be filled" column of the first table to complete the second table form. Show the number of employee movements caused by promotions to fill the identified vacancies. See the example on page 153 of your textbook. Organize the numbers in columns like the example
The HR analyst for the Peel District School Board needs to determine the number of positions to be filled and their impact on current employees in the Secondary School Division.
Based on historical loss rates, the number of positions to be filled in the next year are as follows:Level 5: 1.75 (5% of 35)
Level 6: 10.5 (10% of 105)
Level 7: 7 (3% of 350)
Level 8: 48.2 (2% of 2410)
Total: 67.45 or approximately 67 positions to be filled
2. Table of employees is attached as an image
Note: The numbers in each cell represent the number of promotions from the row position to the column position and the percentage. For example, 48.2 Level 8 teachers will be promoted to Level 5.
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A person standing on a moving walkway travels 60 feet in 20 seconds. What equation representes this relationship? How many feet will the person travel in 10 seconds OAY 10 3 reet B-3; 30 feet G. M - 50; 60 feet D. 4 - 1 3 feet
Answer:
30 feet in 10 seconds
Step-by-step explanation:
A bus holds 39 passengers. How many buses will 420 people need
Answer:
11 buses
Step-by-step explanation:
Which graph represents 12 = 3x + 4y line a, line b, line c
Answer:
green line or "b"
Step-by-step explanation:
we can set this up into the slope intercept form
y=mx+b
where m is the slope and b is y intercept
12=3x+4y
-3x -3x
-3x+12=4y
/4. /4. /4
-3/4x+3=y
we can see the only line with a negative slope and a y intercept at 3 is the green line or "b"
hopes this helps please mark rainliest
Find an equation of the line described below. Write the equation in slope intercept form( solved for y) when possible through (8,5) and (5,8)
\((\stackrel{x_1}{8}~,~\stackrel{y_1}{5})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{8}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{8}-\stackrel{y1}{5}}}{\underset{\textit{\large run}} {\underset{x_2}{5}-\underset{x_1}{8}}} \implies \cfrac{ 3 }{ -3 } \implies - 1\)
\(\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{5}=\stackrel{m}{- 1}(x-\stackrel{x_1}{8}) \\\\\\ y-5=-x+8\implies {\Large \begin{array}{llll} y=-x+13 \end{array}}\)
. Marcia counts the $5 bills and $10 bills in her cash register drawer. She counts a total of 35 bills with a total value of $240. If x = the number of $5 bills in the drawer, which of the following equations could be used to find the number of $5 bills in the drawer?
A. $5x+$10x = 35
B. $5x + $10x +35= $240
C. $5(35-x)+ $10x = $240
D. $5x + $10(35-x) = $240
If x = the number of $5 bills in the drawer, the equation which could be used to find the number of $5 bills in the drawer is: D. $5x + $10(35-x) = $240.
How to write the system of equations for this system?In order to write a system of linear equations that could be used to model the situation, we would assign variables to the number of $5 bills in the drawer and the number of $10 bills in the drawers respectively as follows:
Let the variable x represent the number of $5 bills in the drawer.Let the variable y represent the number of $5 bills in the drawer.Next, we would translate the word problem into system of linear equations as follows:
5x + 10y = 240
x + y = 35
y = 35 - x
By substituting equation 3 into equation 1, we have the following:
5x + 10(35 - x) = 240
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Please help me in this math problem
Answer:
Step-by-step explanation: well, you will more than likely get it at least 60%-80% of the time! If this doesn't help i can try to explain in a lot more detail unless someone does for me!
If a pizza pie had
a diameter of 12
inches, what
would be its
circumference?
Answer:
37.69
Step-by-step explanation:
Answer:r=7r =9 r=10
Step-by-step explanation:
i still need help 1 more after this
Answer:
4.2
Step-by-step explanation:
0.2^(3)-:0.4*60+3.6-:1.2 = 4.2
Answer:
4.2
Step-by-step explanation:
Write the equation of the trigonometric graph
Answer:
y = sin(4(x+π/8)) + 1
Step-by-step explanation:
For a trigonometric equation of form
y = Asin(B(x+C)) + D,
the amplitude is A, the period is 2π/B, the phase shift is C, and the vertical shift is D (shifts are relative to sin(x) = y)
First, the amplitude is the distance from the center to a top/bottom point (also known as a peak/trough respectively). The center of the function given is at y=1, and the top is at y=2, Therefore, 2-1= 1 is our amplitude.
Next, the period is the distance between one peak to the next closest peak, or any matching point to the next matching point. One peak of this function is at x=0 and another is at x= π/2, so the period is (π/2 - 0) = π/2. The period is equal to 2π/B, so
2π/B = π/2
multiply both sides by b to remove a denominator
2π = π/2 * B
divide both sides by π
2 = 1/2 * B
multiply both sides by 2 to isolate b
4 = B
After that, the phase shift is the horizontal shift from sin(x). In the base function sin(x), one center is at x=0. However, on the graph, the closest centers to x=0 are at x=± π/8. Therefore, π/8 is the phase shift.
Finally, the vertical shift is how far the function is shifted vertically from sin(x). In sin(x), the centers are at y=0. In the function given, the centers are at y=1, symbolizing a vertical shift of 1.
Our function is therefore
y = Asin(B(x+C)) + D
A = 1
B = 4
C = π/8
D = 1
y = sin(4(x+π/8)) + 1
Answer(s):
\(\displaystyle y = sin\:(4x + \frac{\pi}{2}) + 1 \\ y = -cos\:(4x \pm \pi) + 1 \\ y = cos\:4x + 1\)
Explanation:
\(\displaystyle y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 1 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{-\frac{\pi}{8}} \hookrightarrow \frac{-\frac{\pi}{2}}{4} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{\frac{\pi}{2}} \hookrightarrow \frac{2}{4}\pi \\ Amplitude \hookrightarrow 1\)
OR
\(\displaystyle y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 1 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{\frac{\pi}{2}} \hookrightarrow \frac{2}{4}\pi \\ Amplitude \hookrightarrow 1\)
You will need the above information to help you interpret the graph. First off, keep in mind that although this looks EXACTLY like the cosine graph, if you plan on writing your equation as a function of sine, then there WILL be a horisontal shift, meaning that a C-term will be involved. As you can see, the photograph on the right displays the trigonometric graph of \(\displaystyle y = sin\:4x + 1,\) in which you need to replase “cosine” with “sine”, then figure out the appropriate C-term that will make the graph horisontally shift and map onto the cosine graph [photograph on the left], accourding to the horisontal shift formula above. Also keep in mind that the −C gives you the OPPOCITE TERMS OF WHAT THEY REALLY ARE, so you must be careful with your calculations. So, between the two photographs, we can tell that the sine graph [photograph on the right] is shifted \(\displaystyle \frac{\pi}{8}\:unit\) to the right, which means that in order to match the cosine graph [photograph on the left], we need to shift the graph BACK \(\displaystyle \frac{\pi}{8}\:unit,\) which means the C-term will be negative, and perfourming your calculations, you will arrive at \(\displaystyle \boxed{-\frac{\pi}{8}} = \frac{-\frac{\pi}{2}}{4}.\) So, the sine graph of the cosine graph, accourding to the horisontal shift, is \(\displaystyle y = sin\:(4x + \frac{\pi}{2}) + 1.\) Now, with all that being said, in this case, sinse you ONLY have a graph to wourk with, you MUST figure the period out by using wavelengths. So, looking at where the graph hits \(\displaystyle [0, 2],\) from there to \(\displaystyle [\frac{\pi}{2}, 2],\) they are obviously \(\displaystyle \frac{\pi}{2}\:unit\) apart, telling you that the period of the graph is \(\displaystyle \frac{\pi}{2}.\) Now, the amplitude is obvious to figure out because it is the A-term, but of cource, if you want to be certain it is the amplitude, look at the graph to see how low and high each crest extends beyond the midline. The midline is the centre of your graph, also known as the vertical shift, which in this case the centre is at \(\displaystyle y = 1,\) in which each crest is extended one unit beyond the midline, hence, your amplitude. So, no matter how far the graph shifts vertically, the midline will ALWAYS follow.
I am delighted to assist you at any time.