Answer:
A, C and D are continuous
Step-by-step explanation:
A is a set of any number x which 30 < x <=45
B is a set that contains only 3 and 7
C is a set of any number x which 60 <= x < 100
D is a set of any number x which -infinity < x < + infinity
E is a set that contains only even whole numbers
A continuous data set is a quantitative data set representing a scale of measurement that can consist of numbers other than whole number, like decimals and fractions.
Reflect the point (7,0) across the y-axis
[tex]A(7,0)\Longrightarrow\boxed{A'(-7,0)}[/tex]
Hope this helps.
r3t40
Answer:
(- 7, 0)
Step-by-step explanation:
Under a reflection in the y- axis
a point (x, y ) → (- x, y )
Hence
(7, 0 ) → (- 7, 0 )
A box has dimensions of 13 inches long, 2.6 feet wide, and 5 inches high. What is the volume of the box? The formula for the volume is V = l · w · h.
Answer:
169
Step-by-step explanation:
A country’s population in 1995 was 56 million in 2002 it was 59 million. Estimate the population in 2016 using the exponential growth formula. Round your answer to the nearest million.
Answer:
65 million in 2016
Step-by-step explanation:
Hope this helps you! :)
The line parellel to 2x+y=5 and passing through (5,4) has equation
Answer:
y=-2x+14
Step-by-step explanation:
If we are looking for a line parallel to 2x+y=5.
Then we are looking for an equation with the same slope as the equation 2x+y=5.
To obtain the slope of equaiton 2x+y=5 I will put it in slope-intercept form.
Luckily there is only one step which is to subtract 2x on both sides.
y=-2x+5
The slope of this line is -2
The slope of parallel line will also be -2.
So we know our equation is in the form y=-2x+b
To find b we will just use the point (x,y)=(5,4) we know is on the line.
Plug in and solve for b.
4=-2(5)+b
4=-10+b
14=b
So the equation that is parallel to 2x+y=5 and goes through (5,4) is y=-2x+14
Plz need answer!! Identify the type of function represented by
f(x) = 4.34
A. Decreasing linear
B. Exponential growth
C. Increasing linear
D. Exponential decay
The function f(x) = 4.34 is a constant function, which means it does not change regardless of the value of 'x'. Thus, none of the options provided (A: Decreasing linear, B: Exponential growth, C: Increasing linear, D: Exponential decay) correctly describe the function.
Explanation:The function represented by f(x) = 4.34 is a constant function.
This is because no matter what value of 'x' you put into the function, the output is always going to be 4.34.
Looking at the options provided:
A. Decreasing linear - This indicates that the function should decrease as 'x' increases, which is not the case here.
B. Exponential growth - This would mean the function increases at an increasing rate, which also does not apply to a constant value.
C. Increasing linear - This suggests that the function's value should increase as 'x' increases, which is not true for a constant function.
D. Exponential decay - This implies the function's values decrease at a decaying rate, which, again, does not match a constant value.
Therefore, none of the options accurately describe f(x) = 4.34.
The function is neither increasing nor decreasing and it is not an exponential function.
Find the quotient. x + 4 x2 ÷ 2 x
Final answer:
To find the quotient of x + 4x² divided by 2x, divide each term inside the numerator by the denominator. Simplify the expression by dividing each term by 2x.Simplifying further, we get: 1/2 + 2x
Explanation:
To find the quotient of x + 4x² divided by 2x, we divide each term inside the numerator by the denominator.
This gives us: (x + 4x²) ÷ 2x
Next, we can simplify the expression by dividing each term by 2x:
x ÷ 2x + 4x² ÷ 2x
Simplifying further, we get: 1/2 + 2x
Can a get help solving this? 2-3(y-t)=-x-2yz
Answer:
Step-by-step explanation:
2 - 3y + 3t = -x - 2yz
I don't think you can actually solve the equation. You are not given any information about the letters (variables).
Horizontal translation of _____
A. 4 units left
B. 4 units right
C. 8 units left
D. 8 units right
Vertical translation of _____
A. 4 units up
B. 4 units down
C. 8 units up
D. 8 units down
Please help ASAP!
Answer:
1. A
2. C
Step-by-step explanation:
H in the parent function equations are always negative and k is always positive.
Ex:
[tex]f(x)=2^(x-h)+k[/tex]
So that means when we're adding 4 to the exponent, we're actually subtracting, therefore moving the graph 4 units to the left.
Then, since k is positive, and we're adding 8, we move the graph 8 units up.
what is 3 1/2 divided by 2 1/4
Answer:
1.56666
Step-by-step explanation:
3.5/2.25=1.555
Answer:
as a decimal its 0.125 as a fraction its 1 5/9
Step-by-step explanation:
All you have to is first change both into a mixed number so 7/2 divided by 9/4 then do keep change flip (KCF) so 7/2 * 4/9 which equals 28/18 and it simply to 1 5/9.
The formula p=m/V, where ρ = density, m = mass, and V = volume, is used to calculate density. Solve this formula for m.
Answer:
m=p*V
Step-by-step explanation:
we have
p=m/V
Solve for m
That means-----> isolate the variable m
Multiply both sides by V
p*V=(m/V)*V
Simplify
p*V=m
rewrite
m=p*V
Answer:
[tex]m=\rho*V[/tex]
Step-by-step explanation:
Note that the formula for density depends on two variables
The mass m
The volume V
[tex]\rho=\frac{m}{V}[/tex]
If we have the density [tex]\rho[/tex] and the volume V and we want to find the mass m then we solve the equation for the variable m
[tex]\rho=\frac{m}{V}[/tex]
Multiply both sides of the equality by the volume V
[tex]\frac{m}{V}*V=\rho*V[/tex]
[tex]m=\rho*V[/tex]
The formula is:
[tex]m=\rho*V[/tex]
Use the distributive property -7(-2x+u-2)
Answer: 14x-7u+14
Step-by-step explanation: multiply parenthesis by -7
Answer:
14x -7u+14
Step-by-step explanation:
-7(-2x+u-2)
Multiply -7 by each term in the parentheses
-7*-2x + -7*u + -7*-2
14x -7u+14
- 3 + 3x = 2x – 13
I have to use more characters...
- 3 + 3x = 2x – 13
Bring -3 to the right side of the equation by adding 3 to both sides
(- 3 + 3) + 3x = 2x – 13 + 3
0 + 3x = 2x - 10
3x = 2x - 10
Bring 2x to the other side by subtracting 2x to both sides
3x - 2x = 2x - 2x - 10
x = -10
Check:
-3 + 3(-10) = 2(-10) - 13
-3 + (-30) = -20 - 13
-33 = -33
Hope this helped!
~Just a girl in love with Shawn Mendes
Multiply or divide as indicated. Leave your answer with no factors in the denominator. a^3 b^2/a^-1 b^-3
Answer:
Step-by-step explanation:
Recall any base that is raised to a negative power is simply the reciprocal of the base.
i.e [tex]x^{-1}[/tex] = [tex]\frac{1}{x}[/tex]
Using this knowledge, we can start simplifying the equation (see attached)
Answer:
[tex]\frac{a^3b^2}{a^{-1}b^{-3}}=a^{4}b^{5}[/tex]
Step-by-step explanation:
Given : Expression [tex]\frac{a^3b^2}{a^{-1}b^{-3}}[/tex]
To find : Multiply or divide as indicated. Leave your answer with no factors in the denominator.
Solution :
We know when two same term are in divide then their power get subtracted.
So, [tex]\frac{a^m}{a^n}=a^{m-n}[/tex]
Applying in the expression,
[tex]\frac{a^3b^2}{a^{-1}b^{-3}}=a^{3-(-1)}b^{2-(-3)}[/tex]
Solve the power,
[tex]\frac{a^3b^2}{a^{-1}b^{-3}}=a^{3+1}b^{2+3}[/tex]
[tex]\frac{a^3b^2}{a^{-1}b^{-3}}=a^{4}b^{5}[/tex]
Therefore, The solution is [tex]\frac{a^3b^2}{a^{-1}b^{-3}}=a^{4}b^{5}[/tex]
whoch is a solution to(x-3)(x+9)=-27
Answer:
x=0, x=-6
Step-by-step explanation:
Answer: -33
Step-by-step explanation:
A toy store owner purchased 70 puppets for $1006. She sold them for $1412. How much profit did she make per puppet?
Answer:
5.80
Step-by-step explanation:
How much was the total profit
1412 -1006
406
She sold 70 puppets
The profit per puppet is the profit divided by the number of puppets
406/70
5.80
The product of 3 and a number x is at most 21
. The formula for the volume, V, of a right circular
cylinder in terms of its radius, r, and its height,
h, is V = nr2h. What is the radius, in inches, of a
right circular cylinder that has a volume of 2,028pi
cubic inches and a height of 12 inches?
Answer:
13 inches
Step-by-step explanation:
Your formula for a right circular cylinder's volume is
[tex]V=\pi r^{2} h[/tex]
All you have to do is plug in your variables. Since we know that the volume is 2028pi and the height is 12 inches, we can set up the equation as follows:
[tex]2028\pi =\pi r^{2} 12[/tex]
Next, we simplify. First, we have to divide both sides by pi.
[tex]2028=12r^{2}[/tex]
Once we've divided both sides by pi, we can divide both sides by 12.
[tex]169=r^2[/tex]
Now, to find the radius, we have to find the square root of both sides. This is because the square root of r squared is r.
[tex]13=r[/tex]
Your radius is 13 inches.
In the context of Mathematics, it involves utilizing the volume formula of a right circular cylinder (V = πr²h) and rearranging it to solve for radius. Then, we substitute given values (volume and height of the cylinder) into the rearranged formula to calculate the value of the radius.
Explanation:The subject of this question is Mathematics. Specifically, it involves using the formula for calculating the volume of a right circular cylinder to determine the radius when given the volume and height. The formula for the volume, V, of a right circular cylinder in terms of its radius, r, and its height, h, is V = πr²h.
To solve this problem, we need to rearrange the formula to solve for r which turns out to be r = √(V/(πh)). Substituting the given details, r becomes √(2028/(3.142*12)), which will give us the value of the radius. This involves use of algebra and geometry concepts.
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The cost of performance tickets and beverages for a family of four can be modeled using the equation 4x + 12 = 48, where x
represents the cost of a ticket. How much is one ticket?
$3.00
$4.00
$9.00
$15.00
Answer:
$9.00
Step-by-step explanation:
4x + 12 = 48 - First, subtract 12 from each side of the equation.
4x = 36 - Then, divide each side by 4 to get x by itself.
x = 9 - After dividing by 4, we are left with x = 9, so 1 ticket costs
$9.00
For this case we have the following equation:
[tex]4x + 12 = 48[/tex]
Where the variable "x" represents the cost of a performance ticket.
Clear "x" of the equation to know the cost of a ticket.
Subtracting 12 on both sides of the equation:
[tex]4x = 48-12\\4x = 36[/tex]
Dividing between 4 on both sides of the equation:
[tex]x = \frac {36} {4}\\x = 9[/tex]
So, the cost of a ticket is $ 9.00
Answer:
Option C
What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9
Answer:
The standard deviation of the data set is 5.7 to the nearest tenth
Step-by-step explanation:
* Lets explain how to find the standard deviation
# Step 1: find the mean of the data set
∵ The mean = the sum of the data ÷ the number of the data
∵ The data set is 3 , 17 , 18 , 15 , 12 , 21 , 9
∵ Their sum = 3 + 17 + 18 + 15 + 12 + 21 + 9 = 95
∵ They are seven
∴ The mean = 95 ÷ 7 = 13.6
# Step 2: subtract the mean from each data and square the answer
∴ (3 - 13.6)² = 112.36
∴ (17 - 13.6)² = 11.56
∴ (18 - 13.6)² = 19.36
∴ (15 - 13.6)² = 1.96
∴ (12 - 13.6)² = 2.56
∴ (21 - 13.6)² = 54.76
∴ (9 - 13.6)² = 21.16
# Step 3: find the mean of these squared difference
∵ The mean = the sum of the data ÷ the number of the data
∵ The sum = 112.36 + 11.56 + 19.36 + 1.96 + 2.56 + 54.76 + 21.16 = 223.72
∴ The mean = 223.72 ÷ 7 = 31.96
# Step 4: the standard deviation is the square root of this mean
∴ The standard deviation = √(31.96) = 5.6533 ≅ 5.7
* The standard deviation of the data set is 5.7 to the nearest tenth
How many solutions does this linear system have?
y = 2x – 5
–8x – 4y = –20
one solution: (–2.5, 0)
one solution: (2.5, 0)
no solution
infinite number of solutions
Answer:
one solution: (2.5, 0)
Step-by-step explanation:
y = 2x – 5
–8x – 4y = –20
Solve the second equation for y
Add 8x to each side
–8x+8x – 4y =8x –20
-4y = 8x-20
Divide by -4
-4y/-4 =8x/-4 -20/-4
y = -2x+5
The two equations are
y = 2x-5
y = -2x+5
Both equations are solved for y so set them equal
2x-5 = -2x+5
Add 2x to each side
2x+2x-5 = -2x+2x+5
4x-5 = 5
Add 5 to each side
4x-5+5 = 5+5
4x=10
Divide by 4
4x/4 = 10/4
x = 2.5
y = 2x-5
Substitute x=2.5 in
y = 2(2.5) - 5
y=5-5
y=0
There is one solution (2.5,0)
Answer: B (2.5, 0)
B: - One solution: (2.5, 0)
Step-by-step explanation:
Given : Two linear equation -
Equation 1 -
Equation 2 -
To find : How many solutions does this linear system have?
Solution :
We solve the given equations,
Substitute the value of y from equation 1 in equation 2
Now, put value of x in equation 1
There is one solution (x,y) = (2.5, 0)
B is correct.
RUHSAT
Find x in the given figure. (The vertical chord is a diameter.)
x = inches
Answer:
If two chords intersect each other in a circle, then the product of the segments of one chord equals the product of the segments of the other chord.
x² = 12
x = 2√3
The formula x = r0 is used to calculate the length of a circular arc 'x', given the radius 'r' and an angle '0' in radians. For example, for a radius of 0.15m and an angle of 75.4 radians, we find x = 11m.
Explanation:The problem revolves around the relationship between the radius r and an angle in radians 0, given by the formula x = r0. This applies to questions involving the measurement of a circular arc, where 'x' is the length of the arc. An example calculation would be, if we had a radius of 0.15m and an angle of 75.4 radians, we would multiply these to find 'x', giving us x = 11m. Similarly, for a radius of 0.0450m and an angle of 220 radians, x = 9.90m. Notice that the unit of 'x' will always be in the same unit as the radius (in this case, meters).
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the point slope form of the equation of the line that passes through (-5, -1) and (10, -7) is y+7=-2/5(x-10)
Answer:
y=-2/5x^2-3x+63
Step-by-step explanation:
Use y=mx+b
A relation is called a function when each element in the domain is paired with
just one element from which of the following?
O
A. Inputs
O
B. Solution variables
O
C. Range
O
D. Independent variables
Answer: the answer is C. Range :D
Step-by-step explanation:
HELP PLEASE
a =
4
6
9
Answer:
9
Step-by-step explanation:
The small triangle on the left, the larger triangle on the right, and the overall triangle all have the same angles, and therefore are similar.
Writing a proportion:
4 / 6 = 6 / a
a = 9
Answer:
C. 9 (third option)
Step-by-step explanation:
A proportion sets two ratios equal to each other.
For example of proportion: ⇒ [tex]x*6=y[/tex]
Another example of proportion: ⇒ [tex]\frac{y}{x}=\frac{6\div 2}{2\div2}=\frac{3}{1}=3[/tex]
6/4=4/a
=9 is the correct answer.
Write an explicit formula for the sequence . Use this to find the 80th term of the sequence that begins -3 , 1 , 5 , 9
[tex]\bf -3~~,~~\stackrel{-3+4}{1}~~,~~\stackrel{1+4}{5}~~,~~\stackrel{5+4}{9}...\qquad \stackrel{\textit{common difference}}{d=4} \\\\\\ n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} a_n=n^{th}\ term\\ n=\textit{term position}\\ a_1=\textit{first term}\\ d=\textit{common}\\ \qquad \textit{difference}\\ \cline{1-1} d=4\\ a_1=-3 \end{cases}\implies a_n=-3+(n-1)4 \\\\\\ a_n=-3+4n-4\implies a_n=4n-7[/tex]
Answer:
A n = 4n - 7
Step-by-step explanation:
Using the order of operations, what should be done first to evaluate (-4)^2 + 6 ÷ (-3 + 4)(2) - 5
Answer:
-3+4
Step-by-step explanation:
if it's put in parentheses it needs to be done first
The point (-2, 7) is reflected across the y-axis. What is the location of the image of the point?
Answer:I dontvknow
Step-by-step explanation:
two lines are perpendicular and slope of the red line is -7, what the slope of the green line?
f(x) = 3x + 2; g(x) = 3x - 5
Find f/g.
[tex]\left(\dfrac{f}{g}\right)(x)=\dfrac{3x+2}{3x-5}[/tex]
Answer:
[tex](\dfrac{f}{g})(x)=\dfrac{3x+2}{3x-5}[/tex] for [tex]x\neq \dfrac{5}{3}[/tex].
Step-by-step explanation:
The given functions are
[tex]f(x)=3x+2[/tex]
[tex]g(x)=3x-5[/tex]
We need to find the function [tex](\dfrac{f}{g})(x)[/tex].
Using division property of functions.
[tex](\dfrac{f}{g})(x)=\dfrac{f(x)}{g(x)}[/tex]
Substitute the values of functions.
[tex](\dfrac{f}{g})(x)=\dfrac{3x+2}{3x-5}[/tex]
This function is defined for all values of x, except a value for which 3x-5=0.
[tex]3x-5=0\Rightarrow x=\dfrac{5}{3}[/tex]
Therefore, the required function is [tex](\dfrac{f}{g})(x)=\dfrac{3x+2}{3x-5}[/tex] for [tex]x\neq \dfrac{5}{3}[/tex].
Which of the following is used to determine the sample space of a compound event?
counting principle
tree diagram
fair game
compound event
answer is #2
Answer:
tree diagram
Step-by-step explanation:
A tree diagram is an organizing tool used to determine the sample space of a compound event.
A compound event is an event that has more than one possible outcomes