Answer:
150 student tickets and 375 adult tickets
Step-by-step explanation:
Let x = # of student tickets sold, and y = # of adult tickets sold.
Total of 525 tickets were sold, so the first equation is x + y = 525. The register gained $8325, so 10.50x + 18y = 8235 is the second equation.
x + y = 525
10.50x + 18y = 8325
18x + 18y = 9450
10.50x + 18y = 8325
7.5x = 1125
x = 150
150 + y = 525
y = 375
Select the correct answer from each drop-down menu.
The total area of the three triangles is
square units.
The area of the figure is
square units.
The total area of the three triangles is square units is 36 and the area of the figure is square units is 60.
What is the triangle?The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.
From the figure, the area of triangles can be calculated using the:
Area = (1/2)height×base length
Area of three triangle = 1/2(4×6) + 1/2(6×4) + 1/2(4×6)
Area of three triangle = 1/2(24×3) = 36 square units
Area of the figure = area of three triangle + area of the rectangle
= 36 + 6×4
= 60 square units
Thus, the total area of the three triangles is square units is 36 and the area of the figure is square units is 60.
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A university's freshman class has 3000 students. 21% of those students are majoring
in Engineering. How many students in the freshman class are Engineering majors?
Answer: 630
Step-by-step explanation:
\(3000 * 21 /100 = 3000 * 0.21 = 630\)
I NEED HELP PLS HURRY
1. Write each expression with a single exponent:
a. (10^7)²
b. (10^9)³
c. (10^6)³
d. (10^2)³
e. (10³)²
f. (10^5)^7
Answer:
We use the rule,
\((a^b)^c = a^{bc}\)
a. (10^7)²
\((10^7)^2 = 10^{(7)(2)} = 10^{14}\)
10^14
b. (10^9)³
\((10^9)^3 = 10^{(9)(3)} = 10^{27}\)
10^27
c. (10^6)³
\(10^{(6)(3)}= 10^{18}\)
10^18
d. (10^2)³
\(10^{(2)(3)} = 10^{6}\)
10^6
e. (10³)²
\(10^{(3)(2)}=10^{6}\)
10^6
f. (10^5)^7
\(10^{(5)(7)} = 10^{35}\)
10^35
Step-by-step explanation:
solve 3(x+4)-11=28 please
Answer:
\(\huge\boxed{\sf x = 9}\)
Step-by-step explanation:
Given equation:3(x + 4) - 11 = 28
Add 28 to both sides3(x + 4) = 28 + 11
3(x + 4) = 39
Distribute3x + 12 = 39
Subtract 12 from both sides3x = 39 - 12
3x = 27
Divide both sides by 3x = 27/3
x = 9\(\rule[225]{225}{2}\)
the average number of mosquitos caught in 64 mosquito traps in a particular environment was 700 per trap . the standard deviation of mosquitos caught in the entire population of traps is 100 mosquitos. what is the 99% condidence interval for the true mena number of mosquitos caught in all mosquito traps
Answer:
the 99% confidence interval for the true mean number of mosquitos caught in all mosquito traps is ( 667.81, 732.19 )
Step-by-step explanation:
Given the data in the question;
sample mean x' = 700
sample size n = 64
the standard deviation σ = 100
99% confidence interval for the true mean number of mosquitos caught in all mosquito traps = ?
significance level ∝ = 1 - 99% = 1 - 0.99 = 0.01
∝/2 = 0.01 / 2 = 0.005
Z-critical \(Z_{\alpha /2\) = 2.575 { from table }
So, to get the 99% confidence interval;
⇒ x' ± \(Z_{\alpha /2\) ( σ / √n )
we substitute
⇒ 700 ± 2.575 ( 100 / √64)
⇒ 700 ± 2.575( 12.5 )
⇒ 700 ± 32.1875
⇒ ( 700 - 32.1875 ), ( 700 + 32.1875 )
⇒ ( 667.81, 732.19 )
Therefore, the 99% confidence interval for the true mean number of mosquitos caught in all mosquito traps is ( 667.81, 732.19 )
Find the quotient of 10^-4/10^2
The quotient of 10⁻⁴/10² is 10⁻⁶
How to Find the quotient of 10⁻⁴/10²?Quotient is the result obtained by dividing one quantity by another. It represents the value that is obtained after division.
For example, if you divide 20 by 2, the quotient is 10 because 20 divided by 2 equals 10.
Division law states that:
10ᵃ / 10ᵇ = 10ᵃ⁻ᵇ
In this case have:
10⁻⁴/10² = 10⁻⁴⁻² (Division law)
10⁻⁴/10² = 10⁻⁶
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study the visual fraction below. Is it A,B,C, or D?
Answer: B
Step-by-step explanation: the pic shows this
Point P(5,0) is on the terminal arm of an angle k in standard position.
Determine the value of cosk.
The value of the cosine of angle \(k\) is 1.
Given a point \((x,y)\) that is a terminal arm of an angle \(k\) in standard position, by trigonometric relations we have the following expression for the cosine:
\(\cos k = \frac{x}{\sqrt{x^{2}+y^{2}}}\) (1)
Where:
\(k\) - Angle measure, in sexagesimal degrees.\(x\) - Horizontal position of the point of the terminal arm, no unit.\(y\) - Vertical position of the point of the terminal arm, no unit.If we know that \(x = 5\) and \(y = 0\), then the cosine of the angle \(k\) is:
\(\cos k = \frac{5}{\sqrt{5^{2}+0^{2}}}\)
\(\cos k = 1\)
The value of the cosine of angle \(k\) is 1.
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what decimal repeats when you divide 1/9. the 1 or the 9
Answer:
1
Step-by-step explanation:
1/9 = .1111111 where the one is repeated
Prove or give a counterexample to the following statements.
For each real number P, there exist real numbers Q and R such that Q*sin(R/5) = P
I know this statement is true. Since Q affects the sine's amplitude and R/5 affects the sine's frequency.
My problem is proving this statement being true.
The given statement is proven. And the counterexample to this statement is, "There are real integers Q and R such that for each real number P, Q×sin(R/5) ≠ P".
The definition of a counterexample is an example that disproves a generalization or universal statement. Take the statement "X satisfies the property P" as an example; the counterexample would be "X does not satisfy the property P".
Given the statement that "there are real integers Q and R such that for each real number P, Q×sin(R/5) = P". First, let's prove this statement. For this,
-1≤sin(R/5)≤1
Multiply by Q on all sides, and we get,
-Q≤Qsin(R/5)≤Q
-Q≤P≤Q
Therefore, for any value of P∈\(\mathbb{R}\) Ǝ Q, R such that Qsin(R/5)=P. Hence, the statement is proven.
Now, the counterexample for the given statement is written as,
"There are real integers Q and R such that for each real number P, Q×sin(R/5) ≠ P".
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HELP ME PLESE HOW TO SOLVE IT
the answer I guess is 8.
Need help will give brainliest and a good rating!
Answer:
1) x = -6, 8
2) x = -1 + i√2
Step-by-step explanation:
1)
\( {x}^{2} - 2x - 48 = 0\)
\((x - 8)(x + 6) = 0\)
x = -6, 8
2)
\(3 {x}^{2} + 2x + 1 = 0\)
x = (-2 + √(2^2 - 4(3)(1))) / (2 × 1)
x = (-2 + √(4-12)) / 2
x = (-2 + √-8) / 2
x = (-2 + 2i√2) / 2
x = -1 + i√2
Functions
Question 22 of 25
True or false: f(x) is a function.
8
12
O A. False
OB. True
SUBMIT
Before beginning voice lessons, Chad already knew how to sing 805 pieces, and he expects
to leam 2 new pieces during each week of lessons. How many weeks of lessons will Chad
need before he will be able to sing a total of 937 pieces?
Let's create an equation to find the # of weeks until Chad learns 937 pieces.
x = # of weeks
937 = 2x + 805
Subtract 805 from both sides.
132 = 2x
Divide both sides by 2
66 = x
Chad will need 66 weeks of lessons to learn 937 pieces.
(PLEASE ANSWER 50 POINTS)Write an equation of a line slope-intercept form with the given slope and y-intercept. Slope:3, y-intercept:2
I AM GIVING 50 POINTS :))
The volume of the prism is 81m3
What is the volume of a pyramid that has the same base and height as this prism?
____m3
Answer:
16 x 25 x 37 = 14800 m^3
////////////////////////
Which of the following rational functions is graphed below?
Answer:
C \(f(x) = \frac{x}{(x+1)(x-2)}\)
Step-by-step explanation:
The two vertical asymptotes happens when you have a pole, ie you are bringing a denominator to zero while the numerator has a finite value. The two lines have equation \(x=-1\) and \(x=2\). The only solution that works for that constraints is C
△
A
B
C
is similar to
△
X
Y
Z
.
A
B
is 8 feet and
B
C
is 11 feet while
X
Y
is 4 feet. Then what length is
Y
Z
?
The corresponding sides of two triangles are proportionate if they are identical then the length of side ZX exists 10.5 units.
What is meant by right triangles?If one of the triangle's angles is 90 degrees, the triangle is said to be right-angled. 90 degrees is the sum of the other two angles. Perpendicular and the triangle's base make up the sides that the right angle is formed from. The hypotenuse, or third side, is the longest of the three. It is also known as the hypotenuse.
If two triangles are similar, then their corresponding sides are proportional.
Since \($\triangle A B C \sim \triangle X Y Z$\), therefore
AB/X Y = BC/YZ = CA/ZX
substitute the values in the above equation, we get
2/7 = 4/14 = 3/N
2/7 = 2/7 = 3/N
2/7 = 3/N
On cross multiplication, we get
2 × N = 3 × 7
2N = 21
Divide both sides by 2
N = 21/2
N = 10.5
Therefore, the length of side ZX exists 10.5 units.
The complete question is:
In the figure below, ABC is similar to XYZ . What is the length of ZX ? Enter only the number as an integer or decimal. An image shows two similar right triangles, A B C and X Y Z. Triangle A B C is smaller than triangle X Y Z. In triangle A B C, side A B is 2, side B C is 4, and side C A is 3. In triangle X Y Z, side X Y is 7, side Y Z is 14, and side Z X is labeled N.
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Which expression is equivalent to the algebraic expression below -4(3x-5
Answer:
-12x+20.
Step-by-step explanation:
I got it by multiplying the bracketed numbers by the -4.
I rlly need help on this badly
3.
The value of x is 20.
The value of y is 30.
4.
The value of x is 30.
The value of y is 4.
What is a triangle?It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.
We have,
3,
The triangle is an equilateral triangle.
Value of all the angles = 60°
All sides are equal.
Now,
46 = 16 + y
y = 46 - 16
y = 30
Now,
The sum of the three angles of the triangle is 180 degrees.
80 + 60 + (60 - x) = 180
140 + 60 - x = 180
200 - 180 = x
x = 20
4.
There is an equilateral triangle.
5y = 20
y = 4
There is an isosceles triangle.
Where two sides are equal and the angle opposite to the equal sides are also equal.
This means,
(180 - 60) + x + x = 180
120 + 2x = 180
2x = 180 - 120
x = 60/2
x = 30
Thus,
3.
The value of x and y is 20 and 30.
4.
The value of x and y is 30 and 4.
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i need help can someone help me right now!!!!!!
(a) | BD | bisects | AC | (reason : Given)
(b) |AD| ≅ |CD| (reason: |BD| is the perpendicular bisector of segment AC).
(c) ∠ABD ≅ ∠CBD (reason: | BD | bisects angle ABC)
(d) ∠A ≅ ∠ C (reason: complementary angles of a right triangle)
What is the complete proof of the congruent angles?Congruent angles are the angles that have equal measure. So all the angles that have equal measure will be called congruent angles.
From the first statement, we will complete the flow chart as follows;
line BD bisects line AC (reason : Given)
line AD is congruent to line CD (reason: line BD is the perpendicular bisector of segment AC)
Angle ABD is congruent to angle CBD (reason: line BD bisects angle ABC)
Angle A is congruent to angle C (reason: angle ABD = angle CBD, and both triangles ABD and CBD are right triangles).
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You and your friends have decided to camp for a night. Your friend claims the perimeter of his tent is 7.5 metres.
Work out the perimeter of his tent to see if he is correct.
The perimeter of the tent =
m
PLease help brainliest will be given If the mean of six nu m b e rs is 48, does one
of the nu m b e rs have to be 48? Explain
why or why not. Give an example with six
nu m b e rs to show your answer.
Which system of equations does this graph represent?(1 point)
W
3 -2 -1
O y = x2 + 2
y=x +4
Oy=x2 + 3
y = -x + 2
O y=x2+4
y=-x-1
Oy=x2 - 5
y = -x -3
4
13
=1+
ви
The system of equations which this graph represent include the following:
A. y = x² + 2
y = x + 4
How to determine an equation of this line?In Geometry, the point-slope form of a straight line can be calculated by using this equation:
y - y₁ = m(x - x₁)
Where:
x and y represent the data points.m represent the slope.First, we would find the slope of this line;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (6 - 3)/(2 + 1)
Slope (m) = 3/3
Slope (m) = 1.
At data point (-1, 3) and a slope of 1, an equation for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 3 = -1(x + 1)
y = -x + 4
For the quadratic equation, we have;
y = a(x - h)² + k
6 = a(-2 - 0)² + 2
4 = a4
a = 4/4
a = 1
Therefore, the required quadratic function is given by:
y = a(x - h)² + k
y = (x - 0)² + 2
y = x² + 2
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Two cars leave towns 680 kilometers apart at the same time and travel toward each other. One car's rate is 16 kilometers per hour less than the other's. If they
meet in 4 hours, what is the rate of the slower car?
Do not do any rounding.
The rate of the slower car is 77km/hr
What is velocity?Velocity is the rate of change of displacement with time. It is measured in meter per second and it is a vector quantity.
velocity = displacement/time
displacement = velocity × time
represent the faster car by v1 and the slower car by v2
v1 = v2+16
V2 = v1-16
Total displacement = 680km
680 =( v1+V2)t
680 = (v1+V2)4
v1+v2 = 680/4
v2+16+v2 = 170
2v2 = 170-16
2v2 = 154
v2 = 154/2
v2 = 77km/hr
therefore the rate of the slower car is 77km/hr
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Los 1600 euros de alquiler de un terreno se reparten entre tres ganaderos que llevan alli a pastar sus ovejas. Como no tienen el mismo número de ovejas, deciden pagar proporcionalmente al número de ovejas de cada uno. Si el primero tiene 120 Ovejas,el segundo 72 y el tercero 68. ¿ Cuánto paga cada uno?
So, each farmer pays the following amounts: The first farmer pays 738.40 euros. The second farmer pays 443.04 euros. The third farmer pays 418.56 euros
What is proportion?Proportion refers to the equality of two ratios. In other words, when two ratios are set equal to each other, they form a proportion. A proportion is typically written in the form of two fractions separated by an equals sign, such as a/b = c/d. Proportions are commonly used in mathematics to solve problems involving ratios and proportions, such as finding missing values or scaling up or down a given quantity.
Here,
To find out how much each farmer pays, we need to determine the proportion of the total rent that each farmer owes based on the number of sheep they have. First, we need to find the total number of sheep:
120 + 72 + 68 = 260
The first farmer has 120 sheep, which is 46.15% of the total number of sheep (120/260). Therefore, the first farmer owes 46.15% of the rent:
0.4615 x 1600 = 738.40 euros
Similarly, the second farmer has 72 sheep, which is 27.69% of the total number of sheep (72/260). Therefore, the second farmer owes 27.69% of the rent:
0.2769 x 1600 = 443.04 euros
The third farmer has 68 sheep, which is 26.15% of the total number of sheep (68/260). Therefore, the third farmer owes 26.15% of the rent:
0.2615 x 1600 = 418.56 euros
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Complete question:
The rent of 1600 euros for a piece of land is divided among three farmers who graze their sheep there. As they do not have the same number of sheep, they decide to pay proportionally according to the number of sheep each has. If the first one has 120 sheep, the second 72, and the third 68. How much does each one pay?
Karim had a packet of 200 chocolates. He gave 35% of them to his sister. How many chocolates were left with him?
Answer:
Karim had 130 chocolates left.
Step-by-step explanation:
The quick way to do this is to notice that if he gave away 35% of his chocolates, he must have 65% left. That comes about by doing
100% (which is what he started with) - 35% = 65%
65% of 200 Change 65% into a fraction
65/100 * 200 Multiply 200 * 65
13000 / 100 Divide by 100
130
Answer:
130 left
Step-by-step explanation:
35% of 200 chocolates is equal to 70 chocolates.
200-70=130 chocolates
Determine whether descriptive or inferential statistics were used in the statement. in 2008, the average credit card debt for college students was $3173. (source: newser)
The collection, description, analysis, and drawing of conclusions from quantitative data are all included in the area of statistics, which is a branch of applied mathematics. Probability theory, linear algebra, and calculus of differential and integrals are some of the core mathematical concepts in statistics.
Descriptive statistics were used in the statement.
Descriptive statistics is a branch of statistics that deals with the collection, presentation, and summary of data. It is used to describe and summarize the main features of a data set, such as measures of central tendency (e.g., mean, median, mode) and measures of dispersion (e.g., range, variance, standard deviation).
In this case, the statement is simply reporting a single value, the average credit card debt for college students in 2008. This is an example of a descriptive statistic because it is a summary measure that describes a characteristic of the population or sample under study.
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Descriptive statistics were used in the statement.
What is descriptive statistics?Descriptive statistics is a branch οf statistics that deals with the analysis, descriptiοn, and summarizatiοn οf data. It invοlves the use οf variοus statistical measures, such as measures οf central tendency (mean, median, and mοde), measures οf dispersiοn (standard deviatiοn, variance, range), and graphical representatiοns (histοgrams, bοx plοts, scatter plοts, etc.) tο describe the features οf a dataset.
Descriptive statistics were used in the statement. The statement is simply describing the average credit card debt fοr cοllege students in 2008. Descriptive statistics are used tο describe οr summarize a dataset οr pοpulatiοn, while inferential statistics are used tο draw cοnclusiοns οr make predictiοns abοut a larger pοpulatiοn based οn a sample οf data. Since the statement οnly prοvides infοrmatiοn abοut a specific grοup οf cοllege students in 2008, it dοes nοt invοlve making any inferences οr predictiοns beyοnd this grοup.
Hence, Descriptive statistics were used in the statement.
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You receive a gift of $100 and decide to save it. At the bank, they say that since you chose to work with them, they will give you a free $15 gift when you withdraw the money. They say they can give you a 2.90 % interest return on your investment, compounded every year.
What function could represent this situation ?
PLEASE HELP! 20 POINTS!
The function that represents this situation is Total amount = 100(1 + 0.029)ᵗ + 15
The situation can be represented by a simple interest formula, where the balance increases every year by a fixed percentage of the principal amount. Let's assume that the initial amount is $100 and the interest rate is 2.90% per year, compounded annually. The formula for the balance after t years is:
B(t) = P(1 + r)ᵗ
Where P is the principal amount, r is the annual interest rate as a decimal, and t is the time in years.
In this case, the balance after t years is:
B(t) = 100(1 + 0.029)ᵗ
At the end of t years, when the money is withdrawn, the bank will give a free $15 gift, so the total amount received by the individual will be:
Total amount = B(t) + 15
So, the function that represents this situation is:
Total amount = 100(1 + 0.029)ᵗ + 15
where t is the number of years the money is saved.
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solve pls brainliest
Step-by-step explanation:
-4+13=9
-16-(-29)=13F lower