If f (x) = 3x + 5 and g (x) = 2x - 3 then find the value of fg (x) and fg(2).
Answer:
f(g(x)) = f(2x - 3) = 3(2x - 3) + 5 = 6x - 9 + 5 = 6x - 4
f(g(2)) = f(2*2 - 3) = f(4 - 3) = f(1) = 3*1 + 5 = 3 + 5 = 8
The composite function values:
f(g(x)) = 6x- 4
f(g(2)) = 8.
What is a composite function?Any function that is created by combining two or more other functions is referred to as a composite function. To put it another way, given two functions, f, and g, the composite function of f and g, denoted as f(g(x)), is a new function that applies g to the input x before applying f to the output of g. (x).
To find the value of fg(x), we need to compute g(x) first and then substitute it into f(x).
g(x) = 2x - 3
Substitute g(x) into f(x):
f(g(x)) = 3(2x - 3) + 5
f(g(x)) = 6x - 4
Therefore, fg(x) = 6x - 4.
To find the value of fg(2), substitute 2 into fg(x):
fg(2) = 6(2) - 4
fg(2) = 8
Therefore, fg(2) = 8.
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Help with this question
Answer:
b = 5√3
Step-by-step explanation:
I would honestly just use pythag, but I'll use trig:
tanθ = opposite/adjacent
tan(30°) = 5/b
btan(30°) = 5
b = 5/tan(30°)
b = 5/(√3/3) = 15/√3
b = 15/√3 · (√3/√3) = 15√3/3
b = 5/√3
Check with pythag:
a² + b² = c²
5² + 5√3² = 10²
25 + 25(3) = 100
25 + 75 = 100 ✅
I hope this helps!
A new computer graphics company employs 10 programmers. The company decides to expand into digital animation and needs to transfer 3 of the programmers into the new department. How many different combinations of 3 programmers can be chosen to transfer to the new department?
A. 3
B. 30
C. 120
D. 840
There are 120 different combinations of 3 programmers that can be chosen to transfer to the new department
How to determine the ways of selection?From the question, we have
Total number of programmers, n = 10
Numbers to programmers to select, r = 3
The number of ways of selection could be drawn is calculated using the following combination formula
Total = ⁿCᵣ
Where
n = 10 and r = 3
Substitute the known values in the above equation
Total = ¹⁰C₃
Apply the combination formula
ⁿCᵣ = n!/(n - r)!r!
So, we have
Total = 10!/(7! * 3!)
Evaluate
Total = 120
Hence, the number of ways is 120
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Cual es el perímetro de un rectángulo si tiene 20 de largo y 11 de ancho?
The perimeter of the rectangle is 62 square units.
How to find the perimeter of a rectangle?The perimeter of a rectangle can be calculated using the formula:
P = 2(L + W)
Where:
L is the length of the rectangle
W is the width of the rectangle
We have:
L = 20 units
W = 11 units
Substituting into the formula:
P = 2(20 + 11)
P = 2(31)
P = 62 square units
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Question in English
What is the perimeter of a rectangle if it is 20 long and 11 wide?
I NEED ANSWER ASAP PLEASE WITH WORK PLEASE AND TY!!!!!! In the image the question is 32!! What is the factored form of x2 + 12x - 64?
A (x-4)(x + 16)
B. (x-2)(x + 32)
C. (x + 4)(x - 16)
D. (x-6)(x + 18)
Answer:
A) (x-4)(x+16)
Step-by-step explanation:
\(x^2+12x-64\\=x^2-4x+16x-64\\=x(x-4)+16(x-4)\\=(x+16)(x-4)\)
what is 8 - 3x > -25 because i have been wondering all day
Answer:
\(8 - 3x > -25 : \left[\begin{array}{ccc}solution: x < 11\\Interval Notation:(-\infty,11)\end{array}\right]\)
Step-by-step explanation:
\(8-3x>-25\)
Subtract \(8\) from both sides:
\(8-3x-8>-25-8\)
Simplify:
\(-3x>-33\)
Multiply both sides by \(-1\) (reverse the inequality):
\(\left(-3x\right)\left(-1\right)<\left(-33\right)\left(-1\right)\)
Simplify:
\(3x<33\)
Divide both sides by \(3\) :
\(\frac{3x}{3}<\frac{33}{3}\)
Simplify:
\(x < 11\)
Hope I helped. If so, may I get brainliest and a thanks?
Thank you, have a good day! =)
please solve this question asap
Step-by-step explanation:
\(y = \sqrt{4x + 6} \)
\( {y}^{2} = 4x + 6\)
\( {y}^{2} - 6 = 4x\)
\( \frac{1}{4} ( {y}^{2} - 6) = x\)
Swap x and y
\( \frac{ {x}^{2} - 6 }{4} = y\)
What fraction of a day (24 hrs) is 2 hours and 27 minutes.
So a day is made up of 24 hours. An hour is 60 minutes long. This means that 24 hours is 24 x 60 = 1,440 minutes in a day
2 hours and 27 minutes is 147 minutes long.
To find what fraction of a day it is do this equation \:
147/1,440 = approximately 0.102 of a day.
For a percentage, multiply by 100
0.102 x 100 = 10.2%
Hope this helps!
True / False: ANOVA, Part I. Determine if the following statements are true or false in ANOVA, and explain your reasoning for statements you identify as false.
(a) As the number of groups increases, the modified significance level for pairwise tests increases as well.
(b) As the total sample size increases, the degrees of freedom for the residuals increases as well.
(c) The constant variance condition can be somewhat relaxed when the sample sizes are relatively consistent across groups.
(d) The independence assumption can be relaxed when the total sample size is large.
Judy had 2 chickens at her farm during the first week.At the end of the second week,she had 4 chickens.At the end of the third week,she had 8.If this pattern continues,how many chickens will be there at her farm by the end of the fifth week.?
Answer:
64
Step-by-step explanation:
your doubling the answer so
2+2=4. >first week
4+4=8. > second week
8+8=16. > third week
16+16=32. > fourth week
32+32=64 > fith week
Write the explicit formula for the arithmetic sequence below. 14, 9, 4, -1, ...
Step-by-step explanation:
To find the next term or number, we'll need to keep subtracting 5. So the formula is: n-5
Which table represents only values described by the relationship between t and w?
w=t+11.2
HELP FAST
Answer:
I is t w
2 13.2
4 15.2
6 17.2
8 19.2
Step-by-step explanation:
why because I already did the test
Answer:
Step-by-step explanation:
What is the equation for this word problem?:
Salma has 18 cars available to rent.
Last C be the number of cars she would have left after renting R of them.
Help!!!
Answer:
equation: C = 15 - R
C = 15 - 7
C = 8
Step-by-step explanation:
Okay first of all stan the karl pfp
Match the system of linear equations on the left with its solution type on the right
1. Y=2x-1
Y=2x+1
2. Y-4x=-2
Solution for the given System of linear equation is:
Infinite number of solution(2, -3)(-2, 4)Infinite number of solutionWhat are System of equation?Simultaneous equations, system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.
There are four methods to solving systems of equations: graphing, substitution, elimination and matrices.
Given, the system of linear equations on the left with its solution type on the right
For Y=2x-1 and Y=2x+1
Adding both equation, we will get y = 4x
Thus, these equations have infinite number of solution
For 2x - y = 7 and 3x + y = 3
Adding these equations
5x = 10
x= 2
Substitute the value in equation 1
y = -3
Thus, solution is (2, - 3)
therefore, the Solution for the given System of linear equation is:
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Complete question:
A community theater performed a play each Saturday evening for 10 consecutive
weeks. The graph shows the attendance for the performances in weeks 1, 4, 6, and 10.
Describe the rates of change in attendance with respect to time.
Weeks 1-4:
Weeks 4-6:
Weeks 6-10:
300
250
200
150
100
50
y
Attendance
Play Attendance
(4, 230)-
(1,131)
(6,208)
(10,60)
Week of performance
0
0 1 2 3 4 5 6 7 8 9101112
The rates of change in attendance in week 1-4 is 33, week 4-6 is -11, week 6-10 is -37 people per week
What is rate of change of attendance?The rate of change in attendance with respect to time is calculated by taking the difference in attendance between two weeks and dividing by the number of weeks between those weeks. This is done to find the average rate of change in attendance per week. The formula used is:
\(Rate =\frac{Attendance at week 2 - Attendance at week 1}{week 2 - week 1}\)
Weeks 1-4:
The rate of change in attendance with respect to time is 33 people per week. This can be calculated by taking the difference in attendance between weeks 1 and 4 (230-131) and dividing by the number of weeks between those weeks (4-1 = 3).
\(rate =\frac{230-131}{4-1}\\\)
hence rate is 33 people per week
Weeks 4-6:
The difference in attendance between weeks 4 and 6 (230 - 208)
The number of weeks between those weeks (6-4 = 2).
\(rate =\frac{208-230}{6-4}\)
Hence rate is -11 people per week
Weeks 6-10:
The difference in attendance between weeks 6 and 10 (60-208)
The number of weeks between those weeks (10-6 = 4).
\(rate=\frac{60-208}{10-6}\)
Hence rate is -37 people per week
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The answer I put is wrong. SO don't put that as a answer. NEED TO EXPLAIN VERY IMPORTANT
Brainleist
Answer:
Solution given:
Annie needs 250 lb of cement to fix the outer step.
Each bag hold 40 lb of cement.
Now
40 lb =1bag
we need
250lb= ? bag.
we have
no of bag =needed lb/1 bag's lb=250/40=250/40=6.25
we do not need more than 7 bags
Annie needs 7 bags.
So
The required inequality is:
b≥7.
HELPP WITH MATH PLEASSS 11-12
Answer:
11. Not enough information
12. You can say DB = DC by SAA congruence rule and CPCTC (Corresponding parts of congruent triangles are congruent)
Step-by-step explanation:
For 12, you can say ΔABD≅ΔACD because they have a side in common (AD) and they have 2 congruent angles. Thus, you can use the SAA congruence criterion. Then, you can use CPCTC (Corresponding parts of congruent triangles are congruent) to say that DB = DC.
Hope this helps :)
Based on the scatterplot below, what is the most likely value for “Pounds of Apples” when “Number of Apples” is 80? A graph titled Number of Apples versus Pounds of Apples has number of apples on the x-axis, and pounds of apples on the y-axis. Points are at (9, 5), (15, 11), (25, 12), (38, 17), (45, 25). 42 81 158 398
Answer:
42
Step-by-step explanation:
Mr. Johnson gave the sales clerk $60 for 3 sweaters that he purchased. The clerk handed him $7.56 in change. Each sweater cost the same amount. What was the cost for each sweater? Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value. . 00 Olo 9 9 O $17.48 O $17.53 O $22.52 O $26.22
Solve the triangle. Round your answers to the nearest tenth. 27 degrees
Sorry never mind! Got it! Can’t delete!
One angle measure provided (27 degrees), to determine the lengths of the sides or the measures of the other Angles.
The triangle, we need more information about the triangle, such as the lengths of the sides or the measures of other angles. The given information, "27 degrees," only specifies one angle of the triangle, but it is not sufficient to solve the triangle completely.
To solve a triangle, we typically need at least three pieces of information, which can include side lengths, angle measures, or a combination of both. With only one angle measure provided (27 degrees), we are unable to determine the lengths of the sides or the measures of the other angles.
To fully solve the triangle, we would need additional information such as the lengths of the sides or measures of at least two more angles. Without this additional information, it is not possible to provide a complete solution or determine the lengths of the sides or the measures of the other angles in the triangle.
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5 times a number k minus 9 is two thirds of a number j. solve for j
Answer:
j= 15k−27/2
Step-by-step explanation:
Can you estimate 3x92=?
Answer:
276.
Step-by-step explanation:
you would have to do 90x3=270 then 2 times 3 equals 6 then you should get your answer
I have to write 20 characters to ask this quesiton
Answer:
You should check off boxes 1, 2, 5, and 6
Step-by-step explanation:
These are all irrational numbers because their decimal places go on indefinitely.
what is the perimeter measured in centimeters of the rectangle pictured below do not include units in your answer
Answer:
183
Step-by-step explanation:
The perimeter of the rectangle measured in centimeters is 26 cm.
What is Perimeter?Perimeter of a straight sided figures or objects is the total length of it's boundary.
Given a rectangle in the figure.
The length of the rectangle = 7 cm
Width of the rectangle = 6 cm
We have to find the perimeter of the rectangle.
Perimeter of the rectangle = 2(l + w), where l is the length and w is the width.
Perimeter = 2(7 + 6)
= 2 × 13
= 26 cm
Hence the perimeter is 26 cm.
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Please explain how to do the equation to get 10 units.
9514 1404 393
Answer:
the equation comes from setting expressions for the perimeters equal to each other
Step-by-step explanation:
Each of the relations is described in terms of the shortest side of the triangle, which is what we're asked to find. It makes sense to let a variable represent that length.
shortest triangle side: s
each of the other two sides: s+1
perimeter of the triangles: s +(s+1) +(s+1) = 3s+2
__
side length of square: s-2
perimeter of square : 4(s -2) = 4s -8
__
The two perimeters are equal, so we have ...
3s +2 = 4s -8 . . . . . your equation
10 = s . . . . . . . . . . . add 8-3s
8. What should be subtracted from 360 to make
it a perfect cube?
Answer:
17
Step-by-step explanation:
The closest perfect cube (to 360) is 343 (7^3) .
360-343 = 17
Subtract 17.
Answer:
You should subtract 17 from 360 to make a perfect cube
Step-by-step explanation:
Can someone help me answer this
Step-by-step explanation: \(2x^{2} +3x+5=0\\\\x=-3±\sqrt{b^{2}-4ac} /2a\\x=-3±\sqrt{3^2-4*2*5/2*2}\\\\x=-3/4 ± \sqrt{31} * (1/4*i)\\x=-3/4 + \sqrt{31} * (-1/4*i)\\\)
Answer: Using the Quadratic Formula, the answer would be x = -3/4 + \sqrt{31} * ([-]1/4*i)
Draw a number line and put the following numbers in the correct location
2.5, -6, -3, 4, -2.2, 1/4, -1/2, 2 1/3
Therefore , the solution to the given problem of order comes out to be
-6< -3< -2.2 < -1/2 < 1/4 < 2\(\frac{1}{3}\) < 2.5 < 4.
What is order?Numerical order can be used to organise a set of numbers. It is possible to use both increasing and decreasing ordering. Consider how a set of numbers would seem if they were organized in ascending order like 2, 55, 103, 256, and 802, for example. This can make sorting through a huge collection of numbers much easier.
Here,
Given : 2.5, -6, -3, 4, -2.2, 1/4, -1/2, 2 1/3
To put them according to ascending order :
So ,
negative terms are the smallest compare to positive terms as their values are lower than 0.
thus,
-6< -3< -2.2 < -1/2 < 1/4 < 2\(\frac{1}{3}\) < 2.5 < 4
Therefore , the solution to the given problem of order comes out to be
-6< -3< -2.2 < -1/2 < 1/4 < 2\(\frac{1}{3}\) < 2.5 < 4.
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HELPPP
Carmen is going to build some large wooden storage boxes. The boxes are shaped like rectangular prisms, as shown below. She wants to cover all the sides of
each box with special wallpaper. If she has a total of 1498 ft? of wallpaper, how many boxes can she cover?
Answer:
7 boxes
Step-by-step explanation:
The area of a rectangular prism is given by the formula ...
A = 2(LW +H(L+W))
The amount of wallpaper Carmen needs for one box is found by computing the area of the box.
__
One boxA = 2(5·6 +7(5+6)) = 2(30 +7·11) = 2(107) = 214 . . . square feet
All boxesCarmen will be using a total of 214x square feet of wallpaper to cover x boxes. She has 1498 ft² available, so can cover ...
1498 ft²/(214 ft²/box) = 7 boxes
Carmen has enough wallpaper to cover 7 storage boxes.
Black skin color is dominant to pink skin color in pigs. Two heterozygous black pigs are crossed. a. What is the probability that their offspring will have pink skin? b. What is the probability that the first and second off- spring will have black skin? c. If these pigs produce a total of three piglets, what is the probability that two will be pink and one will be black?
Answer:
\(P(Pink) = \frac{1}{4}\)
\(P(Both\ Black) = \frac{9}{16}\)
\(Probability = \frac{3}{64}\) --- Two pink and One black
Step-by-step explanation:
Represent the pink skin with P and the black skin with B.
Since black skin is dominant to pink skin, there will be more occurrence of B than P
The punnet square for the breeding of the two pigs is then represented as:
\(\begin{array}{cc} {B} & {B} \ \\ {B} & {P} \ \ \end{array}\)
Solving (a): Probability of Pink
In the above square, there is only 1 occurrence of P out of a possible of 4.
So, the probability is:
\(P(Pink) = \frac{n(P)}{4}\)
\(P(Pink) = \frac{1}{4}\)
Solving (b): Probability that first and second are black
In the above square, there is only 3 occurrence of B out of a possible of 4.
\(P(Black) = \frac{n(B)}{4}\)
\(P(Black) = \frac{3}{4}\)
So, the probability that both are black is:
\(P(Both\ Black) = P(Black) * P(Black)\)
\(P(Both\ Black) = \frac{3}{4} * \frac{3}{4}\)
\(P(Both\ Black) = \frac{9}{16}\)
Solving (c): Probability of two pink and 1 black
This is calculated as:
\(Probability = P(Pink) * P(Pink) * P(Black)\)
\(Probability = \frac{1}{4} * \frac{1}{4} * \frac{3}{4}\)
\(Probability = \frac{3}{64}\)
A) The probability that their offspring will have pink skin is; ¹/₄
B) The probability that the first and second off- spring will have black skin is;
9/16 or 56.25%
C) The probability that two will be pink and one will be black If the pigs produce a total of three piglets is; ³/₆₄ or 4.6875%
Mendel's law of dominanceTo answer this question, we need to first understand Mendel's law of dominance. This law states that in a heterozygote, one trait will conceal the presence of another trait for the same characteristic. This means that the dominant trait always conceal the recessive trait.
Now in this question, we are told that;
black skin colour is dominant to Pink skin colour in pigs.Let's denote the black color gene by ‘P’ and pink colour by ‘p’. Therefore, if cross is held between these two genes then according to mendel's law, the heterozygous pigs is specified as "Pp"
Now when the heterozygous pigs specified as "Pp" are crossed, we have;
Pp × Pp = PP, Pp, Pp, pp
where;
PP and Pp denotes black pigs is denoted pp denotes pink pigs
(a) From the 4 cross possibilities above;
Probability that their offspring will have pink skin = ¹/₄
(b) From the 4 cross possibilities gotten earlier;
Probability that their offspring will have black skin = ³/₄
Thus;
Probability that the first and second off- spring will have black skin is;
³/₄ × ³/₄ = 9/16 or 56.25%
(c) We are told that the pigs produced a total of three piglet. Thus, the probability that two will be pink and one black will be black is;
P(2 pink and 1 black) = ¹/₄ × ¹/₄ × ³/₄ = ³/₆₄ or 4.6875%
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