The frequency table that shows the relative frequency of people older than 40 and don't visit the dentist is:
D. Visit Dentist Yearly Don’t Visit Dentist Yearly
Below 40 0.27 0.73
Above 40 0.57 0.43
What is the relative frequency required?The relative frequency of those older than 40 and don't go annually to a dentist can be found as:
= Number of over 40 who don't go to dentist / Total of those over 40 surveyed
Solving gives:
= 13 / (17 + 13)
= 13 / 30
= 0.43
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Answer:
Its D, I got it right on a test :)
Step-by-step explanation:
For x/3 - 8 = 15, if x = 69
Answer:
x/3 - 8 =15
x/3 =15+8
69/3 =23
69 =23*3
69. =69
What is the midpoint of the segment shown below?
O A. (-9, 3)
O B. (-9, 3)
O c. (-9, ;)
D. (-9, 3)
Answer:
where the segment ??????!??!??!?
Step-by-step explanation:
give me the segment I may be able to answer
A community organization wants to determine area support for the construction of a new skate park in the center of town. The organization decides to survey 500 people to see whether they are willing to have their taxes increased for one year to fund the construction of the skate park.
What is the best way to randomly choose these 500 people?
The method that can be used to randomly choose these 500 people is the use of systematic random sampling.
What is random sampling?Random sampling is defined as the method of sampling in which the whole sampling frame is being considered.
In order the survey a community of people to see whether they are willing to have their taxes increased for one year to fund the construction of the skate park, both the male and female should be considered.
The systematic random sampling will give the both male and female equal opportunity to the chosen.
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evaluate that equation 3√1÷125
Answer:
0.2683281573
Step-by-step explanation:
if 3\2 =x\12 what is the value
[tex]\frac{3}{2} =\frac{x}{12}[/tex]
---Cross multiply
2x = 36
---Divide both sides by 2
x = 18
Hope this helps!
Find the constant of proportionality for the table of values.
The constant of proportionality is k = ___
Answer:
K=3.5
Step-by-step explanation:
1. y/x=k
2. 7/2 or
[tex]7 \div 2 =[/tex]
( 3.5 )
3. 10.5/3 or divided by 3 is 3.5
4. Continue divided y/x and if you get same answer than your constant of proportionality is 3.5 only for this question.
To receive monthly payments of $1500 for 20 years, how much would a person have to invest now in an annuity with an annual interest rate of 3.1% to achieve this goal? Round the answer to the nearest dollar.
Given the possibility of an investment with an annual interest rate of 3.1 %, the person must deposit $ 580645.16 to receive monthly payments of $ 1500 for 20 years.
How to determine the require investment to receive a desired monthly payment
According to this question, the person have decided to invest money to receive a monthly payment, meaning no savings and the adequacy of using the simple interest formula:
g = C · (r/100) (1)
Where:
C - Invested money, in monetary units.r - Monthly interest rate, in percentage.g - Monthly payment, in monetary units.If we know that g = 1500 and r = 3.1/12, then the invested money must be:
C = 100 · g/r
C = 100 · [1500/(3.1/12)]
C = 580645.16
Given the possibility of an investment with an annual interest rate of 3.1 %, the person must deposit $ 580645.16 to receive monthly payments of $ 1500 for 20 years.
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Question 7(Multiple Choice Worth 1 points)
(01.03 MC)
What is the simplified expression for
4^4•4³
3
4^5
4² is simplified expression for [tex]\frac{4^{4} 4^{3} }{4^{5} }[/tex].
What is Indices?Index (indices) in Maths is the power or exponent which is raised to a number or a variable.
Here, Given expression = [tex]\frac{4^{4} 4^{3} }{4^{5} }[/tex]
[tex]\frac{4^{4} 4^{3} }{4^{5} }[/tex] = [tex]\frac{4^{4+3} }{4^{5} }[/tex]
= 4⁷/4⁵
= 4⁷⁻⁵
= 4²
Thus, 4² is simplified expression for [tex]\frac{4^{4} 4^{3} }{4^{5} }[/tex].
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Please answer correctly!
Answer:
I. Evaluate the largest angle when x = 15
Explanation:
First, solve for x:
x + 8x + x + 30 = 180
10x = 180 - 30
10x = 150
x = 15
Here in the question, his friend wants to find the largest angle in triangle.
So, input x = 15 in the largest angle.
Which is, 8x = 8(15) = 120° <--- largest angle in the triangle.
HELP PLSSSSSSSSS WIL GIVE BRAINLEST Nathan needs 10 ounces of lemonade.
He needs to know how much liters that is.
A 16
B 5
C 943
D 0.295735
The volume of 10 ounces of lemonade in litres is 0.295735 litres.
How to convert from ounces to litres?
He needs 10 ounces of lemonade.
To know the volume in litres, we have to convert from ounces to litres.
Therefore,
1 ounces = 0.0295735 litres
10 ounces = ?
cross multiply
volume in litres = 0.0295735 × 10
volume in litres = 0.295735
Therefore, the volume of the lemonade in litres is 0.295735 litres.
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Find the value of x.
25
X
20
X = [?]
Enter the number that belongs in
the green box.
Answer:
Step-by-step explanation:
x^2 + 20^2 = 25^2
x^2 + 400 = 625
625-400=225
sqrt(225) = 15
x = 15
Write down the letter of the shape that is congruent to the shaded shaPe
Answer:
E looks like it is most congruent
Step-by-step explanation:
Given line PQ bisects line RS, LR=LS
Prove: Triangle PQR= Triangle PQS
Answer:
See Below
Step-by-step explanation:
Since PQ is perpendicular to RS, the angles PQR and PQS would be right angles, and right anglers are congruent, so <PQR ≅ <PQS. We are given that <R and <S are the same length, so they are congruent(<R ≅ <S). Since PQ is included in both triangles and it is the same length as itself(PQ ≅ PQ).
We have three congruent parts, two angles and one side. Therefore, using AAS, ΔPQR ≅ ΔPQS
Answer:
See below ~
Step-by-step explanation:
Given :
⇒ PQ ⊥ RS
⇒ ∠R = ∠S
===============================================================
Solving :
⇒ PQ = PQ (common side)
⇒ ∠R = ∠S (given)
⇒ ∠PQS = ∠PQR = 90° (⊥ bisector forms equal right angles)
⇒ ΔPQR ≅ ΔPQS (by ASA congruence)
Which of the following phrases are inequalities?Choose 2 answers: A. (8 + f)(8 - f) > 36
B.
C.
D.
E.
Given f(x)=3x2+5 and g(x)=x−2.
What is (fg)(x)?
PURRRRRR:
yeat or cartiiii
ANSWER:
The product of the functions is 3x³ - 6x² + 5x - 10
Composite functions
Given the following functions expressed as
f(x) = 3x² + 5
g(x) = x - 2
In order to determine the value of (fg)x, we will take the product of the functions as shown
f(x)g(x) = 3x²+5)(x-2)
Expand to have;
f(x)g(x) = 3x³ - 6x² + 5x - 10
Hence the product of the functions is 3x³ - 6x² + 5x - 10
√17 is a number between
What is the solution to the trigonometric inequality sin^2(x) > cos(x) over the interval 0<= x <= 2pi radians?
The solutions to the trigonometric inequality in the interval is given by:
[tex]\frac{\pi}{6} \leq x \leq \frac{5\pi}{6}[/tex], or [tex]\frac{7\pi}{6} \leq x \leq \frac{11\pi}{6}[/tex]
What is the trigonometric inequality?It is given by:
[tex]\sin^{2}{x} > \cos{x}[/tex]
We have the following identity:
[tex]\sin^2{x} = 2\sin{x}\cos{x}[/tex]
Hence:
[tex]2\sin{x}\cos{x} > \cos{x}[/tex]
[tex]2\sin{x} > 1[/tex]
[tex]\sin{x} > \frac{1}{2}[/tex]
Between the first and second quadrant, the solution is:
[tex]\frac{\pi}{6} \leq x \leq \frac{5\pi}{6}[/tex]
Between the third and fourth quadrants, the solution is:
[tex]\frac{7\pi}{6} \leq x \leq \frac{11\pi}{6}[/tex]
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write down the equation for the following expression and then solve it.
The product of 3 and 4 less than a number is 12.
Answer:
x = 24
Step-by-step explanation:
x - (3 · 4) = 12
x - 12 = 12
+ 12 + 12
x = 24
Question 6 (5 points)
Find the amplitude of the function y = 3/2 cos(3x) + 1.
A) 1
B) 3
C) 3/2
D) ¹/3
The amplitude of the function is 3/2 after comparing with the general equation option (C) is correct.
What is cos function?It is defined as the function which is in the form of cosine waves in nature, and it has a domain of all real numbers and lies between the [a, a] where is a amplitude of the function.
We have a cos function:
y = 3/2 cos(3x) + 1
We know,
f(x) = acos(bx - c) + d
The above function represents the cos function where:
a = amplitude
b = is the period of the function
c = phase shift
d = vertical shift
On comparing we get:
a = 3/2
Thus, the amplitude of the function is 3/2 after comparing with the general equation option (C) is correct.
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what's the answer
1. The function below shows the weekly earnings of Alice from her job last summer.
a) We kindly invite to check the image attached below to see a detailed graph of the piecewise function.
b) The piecewise function is continuous.
How to understand a piecewise functionA piecewise function is a conditional combination of two or more functions, whose expression depends on which value of the domain is the function evaluated at.
a) The piecewise function described in the question is plotted on a graphing tool (i.e. Desmos), whose result is presented in the image attached below.
b) A function is continuous if and only if there is one value from range for every value of domain. The piecewise function is continuous as linear functions are continuous and the two functions of the conditional combination have the same value for x = 30.
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Belle walks
7
10
mile each morning and
1
4
10
miles each evening.
How many miles does she walk in 5 days?
I'll mark brainliest
Answer:
I'm not really sure what you mean by the numbers because that's alot.
Step-by-step explanation:
But all you have to do is:
Plus the morning and evening amount and then times it by 5
Like this: y + z x 5
I hope this helped!
Sorry if it didnt...
But have a nice day
The sum of the digits of a three-digit number is 12. The tens digit, t, is 2 more than the hundreds digit, h. The units digit, u, is equal to the sum of the tens and hundreds digits. What is the number?
Answer:
246
Step-by-step explanation:
h = 2
t = 4
u = 6
t - h = 4 - 2 = 2
u = h + t = 2 + 4 = 6
Select the correct answer from each drop-down menu. Segment AB has seven equally spaced points on it. Starting at A and moving left to right, the points are C, D, E, F, G, H, and I. In the diagram, is divided into equal parts. The coordinates of point A are (-3, 9), and the coordinates of point B are (9, 5). The coordinates of point C are . The coordinates of point E are . The coordinates of point H are .
The coordinates of points C, E and G are respectively; C(-0.75, 8.5), E(3.75, 7.5) and H(7.5, 6)
How to find the Coordinates of a Line Segment?
We are told that the line AB is divided into 7 equally spaced points labelled as C, D, E, F, G, H and I.
Now, coordinates of A and B are; A(-3, 9) and B(9, 5)
Since they are equally spaced, then it means that point F is the midpoint of the line. If (x, y) is the coordinate of F, then;
x, y = (-3 + 9)/2, (9 + 5)/2
x, y = (6, 7)
H is the midpoint of FB. Thus;
H(x, y) = (6 + 9)/2, (5 + 7)/2
H(x, y) = (7.5, 6)
D is midpoint of A and F. Thus;
D(x, y) = (-3 + 6)/2, (9 + 7)/2
D(x, y) = (1.5, 8)
E is midpoint of F and D. Thus;
E(x, y) = (1.5 + 6)/2, (8 + 7)/2
E(x, y) = (3.75, 7.5)
C is midpoint of D and A. Thus;
C(x, y) = (-3 + 1.5)/2, (9 + 8)/2
C(x, y) = (-0.75, 8.5)
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Answer:
Select the correct answer from each drop-down menu.
Segment AB has seven equally spaced points on it. Starting at A and moving left to right, the points are C, D, E, F, G, H, and I.
In the diagram, is divided into equal parts. The coordinates of point A are (-3, 9), and the coordinates of point B are (9, 5).
The coordinates of point C are
.
The coordinates of point E are
.
The coordinates of point H are
.
cordinates for c are -1.5, 8.5 E is 1.5, 7.5 H is 6,6
Step-by-step explanation:
Solve for x.
3x-3/4x+3
-
When angles form a linear pair, their sum is 180°.
8x 3 + 4x + 3 = 180
[?]+[] = 180
Hint: First we must combine like terms. Calculate the sum
of 8x and 4x and enter the value of the coefficient.
Enter
can anyone help me ? and show solving steps if possible
Answer:
Step-by-step explanation:
Remark
They are asking you to combine like terms. The total should be 180.
Givens
2 angles
8x - 3 4x + 3Total 180
Solution
8x - 3 + 4x + 3 = 180 The threes cancel. So add what's left. They are of opposite signs, so they cancel.
12x = 180 Divide both sides by 12
12x/12 = 180 /12
x = 15
In this question we are provided with the two angles that is 8x - 3 and 4x + 3 respectively. It is also given that the sum of this two angles is 180°.
To solve this question we will combine the like terms and there sum must be 180°.
[tex] \small\sf{ 8x - 3 + 4x + 3 = 180°} [/tex]
[tex] \bull \: \small\sf{ We \: will \: cancel \: 3 \: because \: they \: are \: of \: opposite \: signs }[/tex]
[tex] \small\rm 8x + 4x = 180 \degree[/tex]
[tex] \bull \: \small\sf{Addition} [/tex]
[tex] \small\rm{ 12x = 180 \degree}[/tex]
[tex] \bull \: \small\sf{ Divide\: both \: side \: by \: 12}[/tex]
[tex] \small\rm{ \dfrac{12x}{12} = \dfrac{180}{12} \: = 15 \degree}[/tex]
[tex] \small \underline{ \boxed{\sf{x = 15} }}[/tex]
[tex] \rule{71mm}{4pt}[/tex]
Write the place value of the 1 in 742.513
Hi Student!
Looking at the problem statement, we are asked to find the place value of the 1 in the number 742.513. Let's go from right to left and name each of the place values. 7 is in the hundreds place, 4 is in the tens place, 2 is in the ones place, 5 is in the tenths place, 1 is in the hundredths place, 3 is in the thousandths place.
Therefore, our final answer for which place value the number 1 in 742.513 is, we come to the conclusion of the hundredths place.
Which single transformation will have the same effect on the figure?
A. reflection over the x-axis
B. rotation of 270° about the point (0, 0)
C. translation described by (x, y) → (x-6, y)
D. translation described by (x, y) → (x, y-6)
Answer:
D. translation described by (x, y) → (x, y-6)
Step-by-step explanation:
The triangle stays in the same orientation just in a diffrent spot on the graph, that spot being 6 units down from where it starts.
Joe bought a $40 video game for only $28, what was the percent discount on
the item?
Answer:
30 % off
Step-by-step explanation:
12 dollars off of 40
40 (x) = 12
x = 12/40 = .3 or 30 %
how to solve for axis of symmetry for y=(x+2)(x-4)
Answer:
x = 1
Step-by-step explanation:
you can first find the two zeroes
that would be
x + 2 = 0
x - 4 = 0
x = {-2, 4}
then you average them
-2 + 4 = 2
2 / 2 = 1
the aos is 1
Answer:
x=1
Step-by-step explanation:
[tex]y=x^{2} -4x+2x-8[/tex]
[tex]y=x^{2} -2x-8[/tex] [tex](a=1, b=-2)[/tex]
[tex]x=-\frac{b}{2a} =\frac{-2}{2*1}[/tex]
[tex]x=1[/tex]
[tex]y=(x+2)(x-4), x=1[/tex]
[tex]y=(1+2)(1-4)[/tex]
[tex]y=-9[/tex]
A grocery wants to make two kinds of coffee. One consoles for $1.40 pound, and the other cells for $2.95 a pound. He wants to makes a total of 21 pounds and sell it for $2.60 per pound. How many pounds of each kind should he use in the new mix? (round off the answers to the nearest hundredth)
Step-by-step explanation:
a lot of typos in the problem description.
I assume the price of the mix is 1:1 related to the prices of the individual types of coffee.
so, from what I understood we can define
x = pounds of the first type of coffee.
y = pounds of the second type of coffee.
x + y = 21 pounds
1.4x + 2.95y = 2.6(x + y) = 2.6×21 = $54.60
in the second equation we have to bring the given "$2.60 per pound" to the total price, which is $2.60 times the total amount of pounds (which is 21).
from the first equation we get
x = 21 - y
and that we use in the second equation
1.4×(21 - y) + 2.95y = 54.6
29.4 - 1.4y + 2.95y = 54.6
1.55y = 25.2
y = 25.2 / 1.55 = 16.25806452... ≈ 16.26 pounds
x = 21 - y = 4.741935484... ≈ 4.74 pounds
so, he should mix 4.74 pounds of the first (cheaper) type and 16.26 pounds of the second (expensive) type.
Please help I will give the most points
Answer:
7
Step-by-step explanation:
The format for a coordinate pair is (x-coordinate, y-coordinate). This means the y-coordinate comes second, and since the 7 comes second here we can say that 7 is the y-coordinate.
That is the answer
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