Answer:(2,4)
Step-by-step explanation:
A 9th grade teacher at a local high school wants to know which subject the 9th grade students in the high school like best which group of people should make up a sample that will best answer her question a, other 9th grade teachers in her school
B, parents of 9th graders in her school
C, 9th graders in her school
D,9th graders in her homeroom
The group of people who should make up a sample that will best answer her question is the 9th graders in her school. The correct option is C.
What are subjects?Subjects are the different sets of information which is studied.
9th graders in her school will be perfect because the question is specifically asking about the opinions of 9th-grade students in the high school, so it makes sense to sample this group directly.
The other options may provide some insights, but they may not be as accurate or representative of the opinions of the 9th-grade students in the school.
Thus, the correct option is C, 9th graders in her school.
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A $1,287.99 TV was marked down at a 12% discount. What is the discounted price (or the reduced selling price)?
Answer:
1133.4312 US$
Step-by-step explanation:
Just use a calculator or write it down
Answer:
Your answer is 154.55 as the reduction price.
Your answer is 1,133.44 as the complete price after the discount.
Step-by-step explanation:
12% = 0.12
1287.88 x 0.12 = 154.5588
Round to 154.55$.
1287.99 - 154.55 = 1,133.44
Factors 3x^4-5x^3+6x^2-15x completely over the set of integers
The Factors of 3x^4-5x^3+6x^2-15x completely over the set of integers will give 5(1-3x).
How can this be calculated?In mathematics, factorization or factoring consists of writing a number or another mathematical object as a product of several factors, usually smaller
The expression can be broken down after the other as
[2x4 = 8] + [5x3=15] + [6x2=12]
= [8-15+12-15x]
=5-15x
then we can factorize as
5(1-3x)
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If we wanted to make 100 brownies, how many cups of sugar do we need
Answer:200
Step-by-step explanation:one batch of brownies needs 2 cups of sugar
multiply that by 100 youll get 200
A student has to buy graph paper and printer paper. The graph paper, x, costs $2, while the printer paper, y, costs $3. She wants to buy at least 8 packs of paper but wants to spend at most $23.
Enter a system of inequalities for the given situation and select the graph of the system. Then determine if the point (3, 6) is a solution to the system.
The system of inequalities is _______ and ______
The point (3, 6)____ a solution because it _______lie in the region shared by the two inequalities, and it ______ satisfies both inequalities.
Answer:
8+3+23
Step-by-step explanation:
a triangular pyramid with an equilateral base has a side length of 10 centimeters and a surface area of 214.5 square centimeters. find its slant height.
PLEASE ANSWER ASAP
Answer:the slant height of the triangular pyramid is approximately 11.4132 centimeters.
The exponential function g, represented in the table, can be written as g(x) = a•b^x
X G(x)
0 12
1 9
Complete the equation for g(x).
g(x) =
how to determine standard deviation of discrete random variables when given standard deviation and mena
To calculate the standard deviation of discrete random variables when given standard deviation and mean, we can follow the mentioned procedure.
Determine the mean, or expected value, by adding the products of each result and its probability:
μ = n ∑ i = 1
x 1p1 + x2p2 + xnpn = x I p I
Step 2: Using the formula
σ^2=n∑i=1,
calculate the variance for the random variable.
p I ( x I − μ ) 2 .
Step 3: Take the square root of the variance to calculate the standard deviation.
A discrete random variable is one that can have just a finite number of or countably infinitely many different values. However, this does not mean that the sample space can only have a finite number of outcomes.
A random variable is one that can have several values, each of which has a certain probability of occuring. The random variable is discrete when there are a finite (or countable) number of such values.
Random variables are distinct from "regular" variables, which have a fixed (but frequently unknown) value.
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431.67 In a different number, the 4 represents a value which is one-tenth of the value of the 4 in the number above. What value is represented by the 4 in the other number?
So the different number has a 4 with a value of 40.
What is Algebraic expression ?
Algebraic expression can be defined as combination of variables and constants.
To solve this problem, we need to first identify the place value of the digit 4 in the given number.
The digit 4 is in the hundreds place in the number 431.67, so its value is 4 x 100 = 400.
According to the problem statement, the 4 in the different number represents a value which is one-tenth of the value of the 4 in 431.67. Therefore, the value of the 4 in the different number is:
400/10 = 40
To determine the value of the different number, we need to look at the other digits in the number. Since we don't have any information about the other digits, we cannot determine the value of the different number. The answer is that the value of the different number cannot be determined with the information given.
Therefore, So the different number has a 4 with a value of 40.
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Find the Surface Area of the following figure. 9.5 m 16m 14m 12.7m 11m
The total surface area of the figure will be 1968.85 square meters.
To determine the surface area of the figure, we need to find the area of each face and then add them together.
Surface Area of the rectangular prism = 2(lb + bh + hl)
= 2(16 × 9.5) + 2(9.5 × 14) + 2(16 × 14)
= 2(152 + 133 + 224) = 2(509)
= 1018 m²
Next, we need to find the area of the triangular prism on the front with dimensions 11 m, 12.7 m, and 14 m:
Surface Area of the triangular prism;
= (11 × 14) + 2(0.5 × 11 × 12.7) + 2(0.5 × 12.7 × 14)
= (154 + 350.35 + 445.5)
= 950.85 m²
Therefore, the total surface area of the figure will be;
Total Surface Area = Surface Area of rectangular prism + Surface Area of triangular prism
= 1018 m² + 950.85 m²
= 1968.85 m²
So, the surface area of the figure is 1968.85 square meters.
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Three consecutive integers add up to -36. What are the integers?
Answer:
We know our answer is correct because 11 + 12 + 13 equals 36 as displayed Below
Explanation
3X + 3 = 36 3X + 3 - 3 = 36 - 3 3X = 33 3X/3 = 33/3 X = 11 Which means that the first number is 11, the second number is 11 + 1 and the third number is 11 + 2. Therefore, three consecutive integers that add up to 36 are 11, 12, and 13. 11 + 12 + 13 = 36 We know our answer is correct because 11 + 12 + 13 equals 36 as displayed above. Therefore, three consecutive integers that add up to 36 are 11, 12, and 13. 11 + 12 + 13 = 36
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44. Consider the equation 4 (x-8) + y = 9(x-2).[Part 1]Find an expression for y of the form ax+b expression for y such that the equationhas infinitely many solutions. Is there more than one such solution? Explain yourreasoning using complete sentences.[Part 2]Find an expression for y of the form ax+b expression for y such that the equationhas no real solutions. Is there more than one such solution? Explain yourreasoning using complete sentences.
Answer:
• 1. y=5x+14
,• 2. y=5x+30
Explanation:
Given the equation:
\(4(x-8)+y=9\left(x-2\right)\)To answer the given questions, first, make y the subject of the given equation.
\(\begin{gathered} 4(x-8)+y=9(x-2) \\ y=9(x-2)-4\left(x-8\right) \\ y=9x-18-4x+32 \\ y=9x-4x-18+32 \\ y=5x+14\cdots(1) \end{gathered}\)Part 1
We want to find an expression of the form y=ax+b such that the equation has infinitely many solutions.
A system of equations has infinitely many solutions if the two equations in the system simplify to the same line.
Thus, we find an equation that is a multiple of the simplified equation (1) above.
Multiply equation 1 all through by 1.
\(\begin{gathered} (y=5x+14)\times1 \\ y=5x+14\cdots(2) \end{gathered}\)Thus, the system of equations:
\(\begin{gathered} y=5x+14\cdots(1) \\ y=5x+14\cdots(2) \end{gathered}\)This system has infinitely many solutions since they simplify to the same line.
Part 2
We want to find an expression of the form y=ax+b such that the equation has no real solutions.
For a system of equations to have no real solutions, the two lines formed by the equations must be parallel.
This means that they must have the same slope.
In equation 1:
\(y=5x+14\cdots(1)\)The slope is 5.
Thus, find another equation that also has a slope of 5.
\(y=5x+30\cdots(3)\)The system of equations below has no real solutions.
\(\begin{gathered} y=5x+14\operatorname{\cdots}(1) \\ y=5x+30\operatorname{\cdots}(3) \end{gathered}\)
What is area of circle that has circumference of 12pi
Answer:
36pi
Step-by-step explanation:
Since the formula for the circumference is C=2*pi*r
12pi=2*pi*r we can divide and get r=6 cm
Then, we can use the formula for the area of a circle: Area=pi*r^2 and get Area=pi*6^2=36*pi.
I need help plz I do not really understand this if you can help me I’d highly appreciate
Answer:
Step-by-step explanation:
question no 3
In complementary angles , sum of two angles is 90 degree. so here,
angle A + angle B = 90 degree
angle A is given i.e 11 degree . substitute the value of A
11 degree + angle B= 90 degree
angle B = (90 -11) degree
angle B = 79 degree
question no 4
In supplementary angles , sum of two angles is 180 degree so here,
angle A + angle B = 180 degree
angle A is given i.e 149 degree . substitute the value of angle A
149 degree + angle B = 180 degree
angle B = (180 - 149) degree
angle B = 31 degree
Which of the following is true?
Who ever answers correctly will get brainliest.
(Pls have atleast 1 or more sentences to support your answer. Tysm :D)
Answer:
C
Step-by-step explanation:
because if u add them together you get the answer
Answer:
The third one is correct
Step-by-step explanation:
What’s the integral of 1/2
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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Select the correct answer from each drop-down menu.
What is the end behavior of function h?
h(x) = -412 + 11
54 is the corect awnser i used a calculator
Find the total cost for the month in dollars. The federal tax is 3%. Use the figure below.
Monthly phone service plan is $52.00. Four lines and 3,487 minutes are used.
Answer:
The total cost per month is $190.76 to the nearest cent.
Step-by-step explanation:
From the given table, the monthly service plan costing $52.00 is:
Monthly Service Plan = $52.00Number of included minutes per month = 2,000 minutesCost per additional line per month = $21.99Overage per minute rate = $0.06The base calling plan includes two lines.
Therefore, for 4 lines, we will need to pay for 2 additional lines per month:
⇒ $21.99 × 2 = $43.98 per month
If 3,487 minutes are used per month, then the overage of minutes is:
⇒ 3487 - 2000 = 1487 minutes per month
As the overage rate is $0.06 per minute, then the cost of the additional minutes is:
⇒ 1487 × $0.06 = $89.22 per month
Therefore, the total cost per month before tax is:
⇒ $52.00 + $43.98 + $89.22 = $185.20
To apply the federal tax of 3%, multiply the total cost by 1.03:
⇒ $185.20 × 1.03 = $190.756 = $190.76 (nearest cent)
Therefore, the total cost per month is $190.76 to the nearest cent.
If f varies jointly as q^2 and h, and f=96 when q=4 and h=3, find k
The value of k in the joint variation equation is 2.
To solve this problem, we need to determine the constant of variation, denoted as k, in the joint variation equation.
The joint variation equation is expressed as f = k * q^2 * h, where f is the dependent variable, q is one of the independent variables, h is another independent variable, and k is the constant of variation.
Given that f = 96 when q = 4 and h = 3, we can substitute these values into the equation to find the value of k.
96 = k * 4^2 * 3
96 = 16k * 3
96 = 48k
k = 96 / 48
k = 2
Therefore, the value of k is 2. This means that f varies jointly as q^2 and h with a constant of variation equal to 2.
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A father is three times as old as his son. After fifteen years the father will be twice as old as his son's age at that time. Hence the father's present age is
Answer:
Step-by-step explanation:
let present age of father=y
present age of son=x
then y=3x
after 15 years age of father=y+15
and age of son=x+15
∴y+15=2(x+15)
y+15=2x+30
y-2x=30-15
y-2x=15
∴3x-2x=15
x=15
y=3x=15×3=45
father's present age=45 years
what’s the missing side length help please
Answer:
6.5
Step-by-step explanation:
\(a^{2} + b^{2} = c^{2}\) means that the two shorter legs (a and b) squared and added together equal the hypotenuse (c) you square \(6^{2} + 2.5^{2} = 42.25\) then find the square root of 42.25 which is 6.5
What is the equation of the line in slope-intercept form?
-2
=-=x+4
v=-15)+4
5
2
V=--x-4
5
2
V=--x+4
The equation of the line in slope-intercept form is y = 3x + 4.
We can use the combination formula to determine how many different packages can be created from a set of 24 crayons with 36 different colours.
The formula for the mixture is provided by:
n C r equals n!/r! (n-r)!
where r is the number of items we want to choose, n is the total number of items, and! stands for the factorial of a number, which is the sum of all positive integers up to that number.
In this instance, we are trying to determine how many various methods there are to choose 24 crayons from a set of 36 colours, regardless of the sequence in which they are chosen. Consequently, we can apply the following combination formula:
36 C 24 = 36! / (24! * 12!)
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Three angles on a straight line. The first and second angles each measures 25°. What does the third angle measure?
Answer:
130
Step-by-step explanation:
A straight like measures 180°
25+25=50
180-50=130
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Answer:
\(130^{\circ}\)
Step-by-step explanation:
A straight line can denote half a circle, each side having \(180^{\circ}\). Therefore, the sum of these three angles should be \(180^{\circ}\). Since the first two angles both measure \(25^{\circ}\), we can set up the following equation and solve:
\(25+25+m\angle 3=180,\\m\angle 3= \fbox{$130^{\circ}$}\).
Two less than three times a number is equal to 19. What is the number?
The best way to approach a word problem like this
is to break it down into pieces, so we can understand it fully.
In this problem, we have a number, which we don't know.
We can use any variable to represent it.
So let's use the variable n to represent it.
"Two less than three times a number" means 3n - 2.
A common mistake is for students to put 2 - 3n.
However, the word "less than" switches the order around.
So we have 3n - 2 = 19.
Solving from here, we add 2 to both sides to get 3n = 21.
Now divide both sides of the equation by 3 and we have n = 7.
So the number is 7.
Picture of coordinates (5,4) (3,4)
On a Cartesian plan
Both the coordinate points are plotted on the graph. The cartesian graph is attached with the answer.
What are coordinates?Coordinates are numbers which determine the position of a point or a shape in a particular space (a map or a graph). In the cartesian coordinate system, the coordinates are of the form (x, y).Other coordinate systems are : cylindrical and spherical coordinate systemGiven are the two coordinates to be plotted on a Cartesian plan -
(5, 4) , (3, 4).
The two given coordinate points are (5, 4) , (3, 4).
Refer to the graph attached. It shows both the points plotted.
Therefore, both the coordinate points are plotted on the cartesian graph.
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PLS ANSWER 12 POINTS U DONT HAVE TO EXPLAIN JUST GIVE THE RIGHT ANSWER PLS AND THANK YOU ILL GIVE YOU BRAINLIEST
Answer: 35 *
Its a right angle. 90 - 55 = 35
6. Five years ago, Ross was N times as old as
Amanda was. If Amanda is now 19 years old,
how old is Ross now in terms of N?
Answer:
14N+5
Step-by-step explanation:
Five years ago; Rose Nx
Amanda x
Now; Rose Nx+5
Amanda x+5=19
x=19-5=14years
Rose(NOW) =14N+5
choose the general algebraic representation (notation) for transforming pentagon vwxyz into pentagon qrstu.
The transformation function can be represented as vwxyz \($\rightarrow$\)qrstu = (v,w,x,y,z) \($\rightarrow$\) (q,r,s,t,u).
This algebraic representation of the transformation of pentagon vwxyz into pentagon qrstu is using the notation of a function. A function takes an input (in this case, the coordinates of pentagon vwxyz) and produces an output (in this case, the coordinates of pentagon qrstu). This transformation can be represented by the notation (v,w,x,y,z) \($\rightarrow$\) (q,r,s,t,u). This notation means that the coordinates (v,w,x,y,z) are being transformed into the coordinates (q,r,s,t,u). This notation is a concise way of expressing the transformation of pentagon vwxyz into pentagon qrstu. It is important to note that the transformation itself is not specified; the notation is simply used as a way of representing the transformation.
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en una division el 42 es el cociente el divisor 12 y el dividendo 513 ¿Cual es el resto?
Answer:
El resto es 9.
Step-by-step explanation:
En una división el cociente es el resultado que se obtiene, el divisor es el número por el que se divide otro número, el dividendo es el número que va a dividirse entre otro y el resto es lo que queda cuando un número no puede dividirse exactamente entre otro. De acuerdo a esto, la división planteada se encuentra en la imagen adjunta donde al resolverla se encuentra que el número que queda es 9 y este es el resto.