Answer:
8x^2 + 13.
Step-by-step explanation:
(f o g)(x) is found by replacing the x in f(x) by g(x).
= 4(2x^2 + 3) + 1
= 8x^2 + 12 + 1
= 8x^2 + 13.
find the distance bd on the number line below.
Answer:
4
Step-by-step explanation:
B= 1
D= -3
Distance between the two? 4 points
1 - (-3) = 4
Based on the stemplot, which of the following is a correct comparison of the eastern and western states’ expenditures?
Going by the stemplot, a correct comparison to make between eastern and western states’ expenditures is The eastern states have, on average, a higher per-pupil expenditure than the western states.
How to read a stemplot?Reading a stemplot requires looking at the stem first which is the number in the middle. Then combine this with the leaf to find the actual number. For instance, a stem of 7 and a leaf of 6 in the attached photo is $76,000.
From the attached photo, we see that the Eastern states have more numbers of per-pupil expenditure which means that on average, they have a higher per-pupil expenditure than the western states.
Options for this question are:
The western states exhibit more variability in their expenditures than the eastern states. The eastern states have, on average, a higher per-pupil expenditure than the western states. The distribution of per-pupil expenditures in the eastern states is more symmetric than the distribution of the western states. The distribution of the western states' per-pupil expenditure is skewed left, while the distribution of the eastern states' per-pupil expenditure is skewed right. Valid conclusions comparing the distributions cannot be made, since there is a different number of states in each group.Find out more on stemplots at https://brainly.com/question/22400218
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Riverstones Whitewater Rafting charges $77.25 per person for a half-day rafting trip. Karen, her mom, and her dad take a half-day rafting trip and then buy 1 souvenir water bottle for $7.99 after the trip. How much money did Karen's family spend in all?
Answer: $239.74 :)
Step-by-step explanation:231.75 for Karen, mom, and dad's rafting, plus 7.99 for the water bottle=239.74 USD
im stuck help , i would really appreciate it
Answer:
7. 123
8. 38
10. 65
11. 113
The probability mass function of a binomial distribution is given as
Select one:
a. 1x! ℮-λ λx
b. n!x!n-x! px (1-p)n-x
c. px (1-p)n-x
d. ℮-λ λx
The probability mass function of the binomial distribution is given by:
B. [tex]\frac{n!}{x!(n-x)!} \times p^{x} \times (1-p)^{n-x}[/tex]
What is the binomial distribution formula?The formula is:
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
The parameters are:
x is the number of successes.n is the number of trials.p is the probability of a success on a single trial.Hence, considering the combination formula, the probability mass function of the binomial distribution is given by:
B. [tex]\frac{n!}{x!(n-x)!} \times p^{x} \times (1-p)^{n-x}[/tex]
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Solve each equation. Round to the nearest ten-thousandth. Check your answers.
4x=19
After solving the equation, x = 19/4 Is the value of x in 4x = 19
⇒ 4x = 19
⇒ x = 19/4
How to solve an equation?
To solve linear equations, utilize the steps that are provided below.
Remove parentheses from each side of the equation and combine similar terms to make it simpler.To separate the variable term on one side of the equation, use addition or subtraction.To find the variable, use division or multiplication.The common denominator can be multiplied by each side of the equation to eliminate fractions.Lets take an example of solve z for 7z – (3z – 4) = 12
Here is no multiplication or division, so this will be easy to solve
⇒ 7z – (3z – 4) = 12
⇒ 7z – 3z + 4 = 12
⇒ 4z = 12 – 4
⇒ 4z = 8
⇒ z = 8/4
⇒ z = 2
See, that was so simple, using the mentioned methods, every linear equation can be solved easily.
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8 ײ + 3× -10 - 2ײ +8 × + 10 please solve and give a solution thankyou..
Answer:
6x2 + 11x
Step-by-step explanation:
First collect like terms:
8x2 - 2x2 + 3x + 8x - 10 + 10 (Ps: x2 and x are not the same!)
Combine them:
6x2 + 11x (the -10 and 10 cancel out)
and this is your polished answer!
|3x-2| = 19
3x - 2 HELPPPP
Answer: x=7
Step-by-step explanation: (3x−2)=19
Add 2 to both sides.
3x=19+2
Add 19 and 2 to get 21.
3x=21
Divide both sides by 3.
x= [tex]\frac{21}{3}[/tex]
Divide 21 by 3 to get 7.
x=7
(2) 3x-2
The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0. The derivative of [tex]ax^{2}[/tex]
is [tex]nax^{n-1}[/tex]
.
[tex]3x^{1-1}[/tex]
Subtract 1 from 1.
[tex]3x^{0}[/tex]
For any term t except 0, [tex]t^{0}[/tex] =1.
3×1
For any term t, t×1=t and 1t=t.
answer=3
Brian bought 4 CDs that were each the same price. Including sales tax, he paid a total of $59.20. Each CD had a tax of $0.70. What was the price of each CD before tax?
Kym is renovating the first floor of her house. She bought 750 square feet of laminate flooring and 525 square
feet of carpet and paid $2717.25. She went back to the store and bought an additional 100 square feet of
laminate flooring and 75 square feet of carpet and paid $374.75. Find the cost per square foot of each type of
flooring. equation
Using simultaneous equations in two variables we get that the cost of laminate is $ 0.65 per sq. feet and the cost of carpet is $ 4.12 per sq. feet.
Equations in algebra that involve two or more variables simultaneously, such as x and y, are referred to as simultaneous equations. The equations are referred to as simultaneous equations since they are solved simultaneously. There are countless possible solutions to just these equations.
A set of finite equations for which common solutions are sought makes up a system of equations, often known as an equation system.
Let the cost per sq feet of laminate be x and the cost per sq feet of carpet be y.
Now it is given that the cost of 750 sq feet of laminate and 525 square foot of carpet is $2717.25
∴ 750x+525y=2717.25
Again the cost of 100 sq feet of laminate and 75 square foot of carpet is $374.75
∴ 100x + 75 y = 374.15
Now we solve the pair of simultaneous equations to find the value of x and y:
Multiplying the second equation by 7 and subtracting from the first we get:
750x + 525y = 2717.25
600x + 575 y = 2619.05
150x = 98.20
or, x = 0.654...
Substituting this value in the first equation we get:
y= 4.115...
Therefore the solution of the simultaneous equation is:
x = $ 0.65 and y = $ 4.12
Therefore the cost of laminate is $ 0.65 per sq. feet and the cost of carpet is $ 4.12 per sq. feet.
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The coordinated of point T are (0,4). The midpoint of ST is (4,-5). Find the coordinates of point S
Answer:
(8,-14)
Step-by-step explanation:
mid piont is (4,-5) So let us consider that S(x,y)
Now,
from mid point formula,
[tex]4 = \frac{x + 0}{2} \\ x = 8[/tex]
[tex] - 5 = \frac{y + 4}{2} \\ - 10 = y + 4 \\ y = - 10 - 4 \\ y = - 14[/tex]
The numbers in this sequence increase by 8 each time.
38 ...
The sequence is continued with the same rule.
Which number in the sequence will be closest to 100?
Optional working
14
22 30
The number 102 in the sequence will be closest to 100.
A sequence in which each next term gets increased or decreased from the preceding by a constant value is called an arithmetic progression.
The difference of any two consecutive terms in an arithmetic progression is called the common difference of the AP (arithmetic progression).
Here each terms increases by 8. So, the common difference d is 8.
The first term is given to be 38.
So our sequence will be,
38, 46, 54, 62,...
nth term in an AP can be calculated by using the formula,
aₙ = a₁ + (n-1)d
To find the term nearest to 100,
100 = 32 + (n-1)8
68/8 = (n-1)
9.5 = n
But the value of n can not be a non-integer,
So the term nearest to 100 will be 9th or 10th term.
a₉ = a₁ + (9-1)d
a₉ = 8 + (8 x 8)
a₉ = 94
and,
a₁₀ = a₁ + (10-1)d
a₁₀ = 8 + (9 x 8)
a₁₀ = 102.
We can see,
a₁₀ = 102 is closest to 100.
Hence, 10th term is closest to 100.
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Please Help! Determine the range of the following graph:
Answer:
- 4 ≤ y ≤ 2 or [ -4; 2 ]Step-by-step explanation:
The range of the function is the set of all y- values.
The range on the graph can be determined by minimum and maximum points if the graph is continuous.
Looking at the given graph we observe:
The minimum is y = - 4,The maximum is y = 2,The graph is continuous between these two points.The range is:
- 4 ≤ y ≤ 2 or[ -4; 2 ]ZA and ZB are supplementary angles. If m/A= (2x - 20)° and m
LB = (3x+15)°, then find the measure of ZB.
The required measure for the supplementary angles EB is calculated as 126°.
Given that,
Two supplementary angles are given ZA and ZB.
ZA = 2x - 20 ; ZB = 3x + 15
To determine the measure of ZB.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
The sum of the supplementary angle is 180°.
ZA + ZB = 180°
2x - 20 + 3x + 15 = 180
5x - 5 = 180
5x = 180 + 5
5x = 185
x = 37
Now,
the measure of angle,
ZB = 3x + 15
ZB = 3 * 37 + 15
ZB = 126°
Thus, the required measure of the angle EB is 126°.
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What is the equation of the line that passes through the point (-3,7)(−3,7) and has a slope of -5/3
Step-by-step explanation:
what form should the equation have ?
I assume slope-intercept
y = ax + b
"a" being the slope, "b" being the y-intercept (the y value when x = 0).
but since we have the slope and a point, we can start with the point-slope form and transform it :
y - y1 = a(x - x1)
"a" is again the slope, (x1, y1) is the point.
so,
y - 7 = -5/3 × (x - -3) = -5/3 × (x + 3) = -5x/3 - 5
and therefore
y = -5x/3 + 2
The height h of a cylinder varies directly with its volume V and inversely with the square of its radius r . Find at least four ways to change the volume and radius of a cylinder so that its height is quadrupled.
The four ways are :
If the value of V is quadrupledIf the value of radius (r) is halvedIf the value of V is enlarged 16 times and the value of r is doubledIf the values of V and r are quarteredWhat is cylinder?A cylinder is a 3-dimentional solid shape . It has two parallel bases which are joined by the curved surface. The cylinder has 2 circular bases one on the top and other at bottom and a curved region between them.
Important formulas of cylinder:
Base area of cylinder = π r²
Surface area of cylinder = 2 π r( r+ h)
Volume of cylinder = π r² h
where, h defines height and r defines the radius
According to ques , [tex]h= k\frac{V}{r^{2} }[/tex]
The four ways are :
1. when the value of volume V is quadrupled
i.e. V = 4V
then, h = [tex]k\frac{4V}{r^{2} }[/tex] = 4 ([tex]k\frac{V}{r^{2} }[/tex]) = 4h
2. when the value of radius (r) is halved
i.e. r = r/2
then , h = [tex]k \frac{V}{(\frac{r}{2} )^{2} }[/tex] = [tex]k\frac{4V}{r^{2} }[/tex] = 4 ([tex]k\frac{V}{r^{2} }[/tex]) = 4h
3. when the value of V is enlarged 16 times and the value of r is doubled
i.e. V= 16 V and r =2r
then, h = [tex]k \frac{16 V}{(2r)^{2}}[/tex] = [tex]k\frac{4V}{r^{2} }[/tex] = 4 ([tex]k\frac{V}{r^{2} }[/tex]) = 4h
4. If the values of V and r are quartered
i.e. V= V /4 and r =r/4
then, h = [tex]k \frac{(\frac{V}{4} ) }{(\frac{r}{4} )^{2} }[/tex] = [tex]k \frac{16 V}{(4r^{2})}[/tex] = [tex]k\frac{4V}{r^{2} }[/tex] = 4 ([tex]k\frac{V}{r^{2} }[/tex]) = 4h
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You score 84 points in 5 games. How many points do you score per game?
Answer:
16.8
Step-by-step explanation:
84 / 5 = 16.8
Answer:
17 points(Rough estimate)
Step-by-step explanation:
Using long division,
[tex]5|84\\5 \times 1 = 5\\8 - 5 = 3\\\mathrm{Drop~4~onto~3~to~get~34}\\5 \times 6 = 30\\34 - 30 = 4[/tex]
Round 16 to nearest ones place
[tex]\mathrm 16 = 17[/tex]
Therefore,
You scored ≈ 17 points per game out of 5 games.
if you need the exact value, it's 16.8
Any concerns, let me know. Have a good day!
HELP!! 30 POINTS!
The sum of three consecutive integers is -51. Find the value of the greatest of the three.
Answer:
Answer: 16, 17, and 18.
Step-by-step explanation: What I'll do I'll just let explain how to solve it and that will instantly solve your question!
The first case of business to make things easier would be to try and put this on a linear equation so...
Let the first integer be x.
Then the next consecutive two integers will be x + 1 and x + 2
x + (x + 1) + (x + 2) = 51 [Sum of the 3 consecutive integers is 51]
-> 3x + 3 = 51
-> 3x = 51 - 3
-> 3x = 48
-> x = 48/3
-> x = 16,
Thus, x + 1 = 17, x + 2 = 18
Therefore, the three consecutive integers are 16, 17, and 18.
Hope it helps ^^
The following frequency table summarizes yesterday's orders at Sizzlin' Skillets.
Type of stir fry Number of orders
Vegetable 333
Chicken 666
Pork 222
Beef 222
Shrimp 555
Based on this data, what is a reasonable estimate of the probability that the next type of stir fry ordered is shrimp?
Choose the best answer.
Choose 1 answer:
Choose 1 answer:
The probability that the next type of stir fry ordered is shrimp is 0.28.
Given that, the frequency table provided summarizes yesterday's orders at Sizzlin' Skillets.
What is a frequency table?A frequency distribution table displays the frequency of each data set in an organized way. It helps us to find patterns in the data and also enables us to analyze the data using measures of central tendency and variance. The first step that a mathematician does with the collected data is to organize it in the form of a frequency distribution table. All the calculations and statistical tests and analyses come later.
The given frequency table is
Type of stir fry Number of orders
Vegetable 333
Chicken 666
Pork 222
Beef 222
Shrimp 555
As we know, probability of an event = Number of favourable outcomes / Total number of outcomes
Here, the number of favourable outcomes = 555
The total number of outcomes = 333+666+222+222+555 = 1998
So, the probability of getting shrimp = 555/1998
=0.277≈0.28
Therefore, the probability that the next type of stir fry ordered is shrimp is 0.28.
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find the midpoint of points A(8,10)and B(0,5) graphically
Answer:
Step-by-step explanation:
Midpoint coordinates(x, y) of 2 points (x1, y1) and (x2, y2) are given by
x = (x1 + x2)/2
y = (y1 + y2)/2
So in this situation
x = (8 + 0)/2 = 8/2 = 4
y = (10 + 5)/2 = 15/2 = 7.5
Midpoint is at (4, 7.5)
Check the graph attached
[tex]5xx^{2} -9x-10[/tex]
Answer:
Step-by-step explanation:
5
2
−9x−10
Calculate 5 to the power of 2 and get 25.
25−9x−10
1
Calculate 10 to the power of 1 and get 10.
25−9x−10
Subtract 10 from 25 to get 15.
15−9x
Find each composition of functions. Simplify your answer.
Let f(x)=1/x . Find f(f(f(x))) .
A composite function exists as a function that depends on another function. A composite function exists formed when one function exists substituted into another function.
The value of f(f(f(x))) is 1/x
What is meant by composition function?In mathematics, function composition exists as an operation ∘ that takes two functions f and g, and has a function h = g ∘ f such that h(x) = g. In this operation, the function g exists used to the result of applying the function f to x.
Function composition is a mathematical procedure where two functions, f, and g, are taken and a function, h = g ∘ f, is produced such that h(x) = g(f(x)). The function g exists used in this operation on the outcome of applying the function f to x.
A function that depends on another function is referred to as a composite function. When one function is inserted into another, a composite function is produced. For instance, f(g(x)) is the composite function created when x in f is replaced with f(x). f(g(x)). You can interpret f(g(x)) as "f of g of x."
Let the given function be f(x) = 1/x
f(f(x)) = f(1/x) = 1/(1/x)
simplifying the above equation, we get
f(f(x)) = f(1/x) = x
f(f(f(x))) = f(x) = 1/x
Therefore, the value of f(f(f(x))) = f(x) = 1/x
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A triangle has vertices A(-2, 3), B(0, 0), and C(1, 2). What are the coordinates of the vertices if the triangle is reflected over the y-axis and then dilated by a scale factor of 2?
A'(4, 6), B'(0, 0), C'(-2, 4)
A'(-4, -6), B'(0, 0), C'(2, -4)
A'(-4, -6), B'(2, 2), C'(2, -4)
A'(4, 6), B'(2, 2), C'(-2, 4)
The the vertices if the triangle is reflected over the y-axis and then dilated by a scale factor of 2 wii be A'(4, 6), B'(0, 0) and, C'(-2, 4).
According to the given question.
The vertices of a triangle ABC are A(-2, 3), B(0, 0), and C(1, 2).
As we know that,
The rule for reflecting a triangle over the y axis is to negate the value of x-coordinate of each point, but leave the y-value the same.
Therefore, the vertices of triangle ABC when it is reflected over y-axis are
A'(2,3)
B'(0, 0)
C'(-1, 2)
Also, when the triangle is dialated by a scale factor 2 then the vertices will be
A'(4, 6)
B'(0, 0)
And, C'(-2, 4)
Hence, the the vertices if the triangle is reflected over the y-axis and then dilated by a scale factor of 2 wii be A'(4, 6), B'(0, 0) and, C'(-2, 4).
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For each annual rate of change, find the corresponding growth or decay factor. +0.1%
The growth factor for the annual rate of change +0.1 % is 1.001.
A quantity must vary by a specific percentage each time period in order for growth or decay to be exponential.
With the function displayed to the right, you may represent exponential growth or decay.
A(x) = a( 1 + r)ˣ
Where A is the amount after x time periods, a is the initial amount, x is the number of time periods, and r is the rate of change.
Now, we have the annual rate of change as:
r = + 0.1% = + 0.1 / 100 = + 0.001
From the function A(x) = a( 1 + r)ˣ , the corresponding factor is 1 + r.
So, let B = 1 + r
B = 1 + r
B = 1 + (+0.001)
B = 1.001
Now, the value of B is greater than 1 therefore, the corresponding growth factor is 1.001.
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The slope of line a is 5. The slope of line b is 1/5 .
Which statement is true?
Responses
The lines are perpendicular.
The lines are parallel.
The lines are neither perpendicular nor parallel.
Answer:
The lines are neither
Step-by-step explanation:
show that theorem 2.6, the additive law of probability, holds for conditional probabilities. that is, if a, b, and c are events such that p(c) > 0, prove that p(a ∪ b|c)
P(AUB|C)=P(A|C) + P(B|C) - P(AnB|C) is the correct answer.
From distributive law we have,
P((AUB)nC)=P(AnC) + P(BnC)-P(AnBnC)
Dividing both sides by P(C)
P((AUB)nC)/P(C)=P(AnC)/P(C) + P(BnC)/P(C) - P(AnBnC)/P(C)
P(AUB|C)=P(A|C) + P(B|C) - P(AnB|C)
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PLEASE I REALLY NEED HELP !!!
79°
73°
Find the value of the missing angle x.
||
२००
Answer:
152 =x
Step-by-step explanation:
180 - 152= 28
180-28= 152
Solve |7h + 1| = |3h – 7| for h.
Question 3 options:
A)
–2 or 3∕5
B)
2 or –3∕5
C)
–3∕2 or 3∕5
D)
–2 or 2
Answer:
A) –2 or 3∕5
Step-by-step explanation:
Two possible cases since we are dealing with absolute values:
7h + 1 = 3h - 7 ; h = -2 here
7h + 1 = -(3h - 7) ; h = 3/5 here
What’s 181 x 42 step by step
answer: 7,602
explanation: 2×3×7×181
Answer:7602
Step-by-step explanation:First line up the numbers vertically and match the places from the right like this.
181
942
* ____
Now multiply the first number with the 1 st digit in 2 nd
number to get intermediate results. That is Multiply 181 with 2. Write the result 362 at the end leaving 0 spaces to the right like this.
181
42
*_____
362
Now multiply the first number with the 2nd digit in 2nd
number to get intermediate results. That is Multiply 181 with 4. Write the result 724 at the end leaving 1 spaces to the right like this.
181
42
*______
362
724
______-
Now add the intermediate results to get final answer.
181
42
*_____
362
724
______
7602
someone please help me i’ve been stuck on this for the longest
Answer:
-3/2
Step-by-step explanation:
Slope:
Rise: The difference between the y -coordinates of the two points is called the rise.
Run: The difference between the x-coordinates of the same two points is called the run.
First plot two points on the line.
(0, 6 ) and (4 , 0)
Rise = 6 - 0 = 6
Run = 0 - 4 = -4
[tex]\sf \boxed{Slope = \dfrac{Rise}{Run}}[/tex]
[tex]\sf =\dfrac{6}{-4}\\\\=\dfrac{-3}{2}[/tex]