Answer:
if f(x) = 3x, g(x) = x+4, and h(x) = x²-1, Find [h•(f•g)](3)
{h • (f • g)}(3) = 440
Step-by-step explanation:
To find {h • (f • g)}(3), we need to first evaluate the innermost function, f • g, then substitute the result into the outer function, h, and finally evaluate the resulting expression at x = 3.
Let's start by finding f • g:
f • g = f(g(x))
Substitute g(x) into f(x):
f • g = f(x + 4)
Now substitute f(x) into the above expression:
f • g = 3(x + 4)
Simplify:
f • g = 3x + 12
Now we can substitute this result into h(x):
h • (f • g) = h(3x + 12)
Substitute x = 3 into the above expression:
h • (f • g) = h(3(3) + 12)
Simplify inside the parentheses:
h • (f • g) = h(9 + 12)
Simplify further:
h • (f • g) = h(21)
Now let's evaluate h(21):
h(x) = x² - 1
h(21) = (21)² - 1
Simplify:
h(21) = 441 - 1
Final result:
{h • (f • g)}(3) = 440
What is the domain of the following function?
A. -4,-3,1,2,6,9
B. All real members
C. -4,2,6,9
D.-3,1
Check the picture below.
An ant colony is built by 200 ants. The number of ants triples each week. How many ants will be in the colony at the end of the eighth week?
Gr 6 Measuring Distance page (Need answers)
The key's length rounded to the nearest millimeter is 6 cm.
What are the factors?
what are factorsIn mathematics, a factor is a number that divides another number without leaving a remainder.
To convert the key's length to the nearest half inch, we can use the conversion factor: 1 inch = 2.54 cm.
First, we convert 6.3 cm to inches:
6.3 cm ÷ 2.54 cm/inch = 2.48 inches
Next, we round 2.48 to the nearest half inch:
2.48 rounded to the nearest half inch is 2.5 inches
To convert the key's length to the nearest millimeter, we simply round the length in centimeters to the nearest whole number. Since there are 10 millimeters in a centimeter, rounding to the nearest millimeter means determining which whole number of centimeters is closest to the given length.
Therefore, the key's length to the nearest half inch is 2 1/2 inches.
To convert the key's length to the nearest millimetre, we can simply round 6.3 cm to the nearest whole number:
6.3 cm rounded to the nearest millimetre is 6 cm.
Therefore, the key's length rounded to the nearest millimeter is 6 cm.
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find the equation of a line perpendicular to 2x + 2y= -10 that passes through the point (6,2)
Answer: The equation of a line perpendicular to 2x + 2y = - 10 that passes through the point (6, 2) is y = x - 4
Peter brought chocolate and vanilla cupcakes to school for his birthday. 2 students picked a vanilla cupcake and 23 students picked a chocolate cupcake. What percentage of the students picked a vanilla cupcake?
Answer:
8%
Step-by-step explanation:
Add 2 and 23 together to get 25.
Divide 2 by 25 to get 0.08.
Covert 0.08 into percentage: 8%
Find the domain and the range of the given relation {(-1,-5),(-3,0),(9,1),(1,9)}
Answer:
1,3,4,6,8} { 1 , 3 , 4 , 6 , 8 }. Range:{2,4,5,7,9}
Step-by-step explanation:
The domain is the set of all the values of x x . The range is the set of all the values of y y .
Dana is making bean soup. The recipe she has makes 10 servings and uses
3/4
of a pound of beans. How many total pounds of beans does she need to make 5 servings of soup?
She has
1/16
of a pound of beans in one container and
1/4
of a pound of beans in another container. How many more pounds of beans does Dana need to make the 5 servings of soup? Show your work or explain your answer.
What is the area of the figure?
10 feet
10 lect
2 feet
2 foot
16 feet
962
O 34
40?
O can't be determined
Answer:
it's 40 because you add them up I learned it last quarter
The sum of two consecutive integers is 59. Write an equation that models this situation and find the values of the two integers.
Answer: The two consecutive integers are 29 and 30
==================================================
Work Shown:
x = first integer
x+1 = second integer that follows immediately after x
Consecutive integers are numbers like {4,5,6,7,...} ones that follow right after another.
Add up those expressions and set the sum equal to 59. Then solve for x
x+(x+1) = 59
2x+1 = 59
2x = 59-1
2x = 58
x = 58/2
x = 29
So 29 is the first number
x+1 = 29+1 = 30
and 30 is the next number
As a check, 29+30 = 59 which confirms our answer.
PLEASE HELP!!!
Compare the ratios to determine which ratio is greater by cross multiplying. Which ratio is greater?
Can you also please explain?
Step-by-step explanation:
It wants u to cross and multiply so what i would do is put both of them together and multiply across and when u get the answers that u multiply u then divide to see what was the lowest and what the greatest ratio was so for me i would gi with a
How is the following decimal written using bar notation? 3.126666666666...
Answer:
\(3.126666666666...=3.12\overline{6}\)
Step-by-step explanation:
If the decimal number is repeating, then bar notation is used. A symbol called "bar" is used to express that type of numbers. it is placed at the top of the number that is repeating.
We have a number i.e. 3.126666666666...
We need express it in bar notation.
In this problem, 6 is repeating. It means "bar" is placed over 6.
So,
\(3.126666666666...=3.12\overline{6}\)
It is the bar notation of 3.126666666666...
Cookies are sold in singly or in packages of 6 or 18. With this packaging how many ways can you buy 36 cookies?
The ways to pack are
10 singles. One package of 6 and 4 singles. One package of 6 and one packages of 4 Two packages of 4 and 2 singles One package of 4 and 6 singlesThis is further explained below.
What is packaging ?Generally, The science, art, and technology of packaging involves confining or safeguarding goods for distribution, storage, sale, and usage. The process of creating, analyzing, and designing packages is sometimes referred to as packaging.
In conclusion,
10 singles. One package of 6 and 4 singles. One package of 6 and one packages of 4 Two packages of 4 and 2 singles One package of 4 and 6 singlesRead more about packaging
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The lifetime for a certain brand of widgets is normally distributed. A random sample of 25 widgets is taken and a sample mean lifetime of 520 hours with a standard deviation of 50 hours. Before taking the sample, researchers claimed that the mean lifetime of a widget was more than 500 hours. 1. null hypothesis:
2. the alternative hypothesis:
3. explain what test will be used and why?
Answer:
1. H0: u = 500
2. H1: u <500
3. One sample t test
Step-by-step explanation:
1. The null hypothesis in this question would be
H0: u = 500
2. The alternative hypothesis would be
H1: u < 500
3. The test that we are going to be using is the one sample t test. This test is used to test hypothesis. It would make a comparison of h0 to the mean of the sample. Now we are using this here because the sample standard deviation was given
Sally bought 5.33 pounds of cheese at the deli. Dan bought 3.29 pounds of
cheese. How much more cheese did Sally buy than Dan? Do not include units
in your answer.
Answer:
2.04
Step-by-step explanation:
\(5.33-3.29=2.04\)
Answer:
2.04
Step-by-step explanation:
5.33-3.29=2.045.33−3.29=2.04
Add. Write your answer in simplest form.
5 3/4+ 2 11/12
pls help me with this math problem
Answer:
Step-by-step explanation:
3,2
the lines meet at 2 y, and 3 x
X goes first, and y goes second
$500 is invested in an account earning 7% interest compounded quarterly. Find the value
after 8 years.
The amount of the investment after 8 years will be, $4,357.64
Given, $500 is invested in an account earning 7% interest compounded quarterly.
We have to find the value of the invested amount after 8 years,
as, Amount = P(1 + r/100)^t
where, P is the amount of money invested, r is the rate of interest and t is the amount of time
Amount = 500(1 + 7/100)^(8×4)
Amount = 500(1.07)^32
Amount = 500×8.715
Amount = 4,357.635
So, the amount of the investment after 8 years will be, $4,357.64
Hence, the amount of the investment after 8 years will be, $4,357.64
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A population includes all elements or objects of interest in a study, whereas a sample is a subset of the population used to gain insights into the characteristics of the population. T/F
A population includes all elements or objects of interest in a study, whereas a sample is a subset of the population used to gain insights into the characteristics of the population.
The following statement is True.
A variable is a trait that can be measured and has several values. Variables include height, age, income, province or country of birth, school grades, and kind of dwelling. Variables can be divided into two types: category and numeric.
A "sampling frame" is a list of all population items to be researched. Probability and nonprobability are the two primary types of sampling methodologies. A simple random sample is a sample drawn from the population in which every member has an equal probability of being chosen.
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y=f(x) is the particular solution to the differential equation dy/dx=(x(y-1))/4, with the initial condition of f(1)=3. write an equation for the line tangent to the graph of f at the point (1,3) and use it to approximate f(1,4)
We are given the following differential equation:
\(\frac{dy}{dx}=\frac{x(y-1)}{4}\)Since this equation gives the value of the slope of the tangent line at any point (x,y). To determine the equation of such line we need to use the general form of a line equation:
\(y=mx+b\)Since in a tangent line the slope is equivalent to the derivative we may replace that into eh line equation like this:
\(y=\frac{dy}{dx}x+b\)Now we determine the value of dy/dx at the point (1,3):
\(\frac{dy}{dx}=\frac{(1)(3-1)}{4}=\frac{2}{4}=\frac{1}{2}\)Replacing into the equation of the line:
\(y=\frac{1}{2}x+b\)Now we replace the point (1,3) to get the value of "b":
\(3=\frac{1}{2}(1)+b\)Solving for "b":
\(\begin{gathered} 3=\frac{1}{2}+b \\ 3-\frac{1}{2}=b \\ \frac{5}{2}=b \end{gathered}\)Replacing into the line equation:
\(y=\frac{1}{2}x+\frac{5}{2}\)And thus we get the equation of the tangent line.
To approximate the value of f(1.4) we replace the value x = 1.4 in the equation of the tangent line:
\(y=\frac{1}{2}(1.4)+\frac{5}{2}\)Solving the operation:
\(y=3.2\)Therefore, the approximate value of f(1.4) is 3.2
Brandon and Stephen share an apartment and pay bills in the ratio of their income which is 5:3 the beldó bill for 388 arrives how much does each have to pay
Answer:
242.5 & 145.5
Step-by-step explanation:
let Brandon pay 5x and Stephen pay 3x
thus, 5x+3x= 388
⇒ 8x=388
⇒ x= 48.5
Amount paid by Brandon= 5(48.5)=242.5
Amount paid by Stephen= 3(48.5)=145.5
Which graph shows the system of equations 4x+y=3 and 2x-3y=3?
What is the measure of ZL?
Enter your answer in the box. Round only your final answer to
the nearest hundredth.
m/L=
18 in.
М'
60 in.
N
Angle L's in the triangle LMN is,
⇒ L = 72.54°
We have to given that;
A triangle LMN is shown in figure.
And, The sides are,
Since, We know that;
A triangle is a three-sided polygon with three vertices, three angles that add up to 180 degrees, and three sides.
Since, We know that;
⇒ sin L = Opposite / Hypotenuse
And, cos L = Base / Hypotenuse
Two rays after combined into an angle have a single terminal. And, latter is known as the vertex of the angle, and the rays are known as its sides, occasionally as its legs, and occasionally as its arms.
Now, We can use trigonometry formula to find the value of angle l we get;
⇒ sin L = Opposite / Hypotenuse
⇒ sin L = LM / LN
⇒ sin L = 18/60
Taking arc sin both side, we get;
⇒ L = 72.54°
Therefore, The value of measure of angle L is triangle LMN is,
⇒ L = 72.54°
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Anthony has a bank balance of $45. Sara has a bank balance of -$90. Sean has a bank balance of -$208. Marsha has a bank balance of $153. Which is the smallest debt?
9514 1404 393
Answer:
Marsha and Anthony
Step-by-step explanation:
Here a negative bank balance represents a debt. The larger the magnitude of the negative number, the more debt it represents. A positive bank balance corresponds to no debt.
Anthony and Marsha -- no debt . . . . smallest debt
Sara -- $90 in debt . . . . smallest non-zero debt
Sean -- $208 in debt
On those with non-zero debt, Sara has the smallest debt. Overall, Anthony and Marsha have the smallest debt: zero debt.
Deena's family has a freezer that is 2 yards in width, 1 yard in length, and 1 yard in heigh
a. What is the volume of the freezer?
Answer:
2 yards cubed
Step-by-step explanation:
to do this, you are doing 2x1x1. First you do 2x1=2 (length times height). After that, do 2x1=2 (times width). Deenas family’s freezer’s volume is 2 yards.
A dancing competition has 13 competitors, of whom four are American, two are Mexicans, four are Russians and three are Italians. If the contest result lists only the nationality of the competitors, how many outcomes are possible?
Answer:
900,900 outcomes are possible.
Step-by-step explanation:
Arrangements with repetition:
The number of possible arrangements of n elements, considered that they are divided in classes of \(n_1,n_2,...,n_n\) elements, is given by:
\(A = \frac{n!}{n_1!n_2!...n_n!}\)
A dancing competition has 13 competitors
This means that \(n = 13\)
Four are American, two are Mexicans, four are Russians and three are Italians.
This means that \(n_1 = 4, n_2 = 2, n_3 = 4, n_4 = 3\)
How many outcomes are possible?
\(A = \frac{13!}{4!2!4!3!} = 900900\)
900,900 outcomes are possible.
Mr. Heritage starts a new business, and to get it started he borrows $2 500 from a bank. If the loan is for two years, and the amount of interest for those two years is $175, what SIMPLE interest rate was he charged? (SIMPLE INTEREST: the principle and interest calculations dont change- they stay the same for the entire two year period!) BONUS- if he pays off the whole loan in the two years, what would his monthly bill be, (DON'T FORGET TO INCLUDE THE INTEREST CHARGE FOR HIS MONTHLY BILLS!!! YOU CAN ROUND YOUR CALCULATION TO THE NEAREST HUNDRETH- THAT IS, TO TWO DECIMAL PLACES...)
The rate of interest is given by the equation R = 3.5 %
What is Simple Interest?Simple interest is a method of calculating interest that ignores the impact of compounding. While interest frequently compounds throughout the course of a loan's set periods, simple interest does not. Simple interest is calculated by multiplying the principal amount by the interest rate, times the number of periods.
Simple Interest = ( Principal Amount x Rate x Time Period ) / 100
Given data ,
Let the rate of interest be represented as R
Now , the simple interest I = $ 175
The principal amount invested P = $ 2,500
The time period T = 2 years
Simple Interest = ( Principal Amount x Rate x Time Period ) / 100
Rate of Interest = (Simple Interest x 100 ) / Principal Amount x Time Period )
Substituting the values in the equation , we get
Rate of Interest R = ( 175 x 100 ) / ( 2500 x 2 )
Rate of Interest R = 17500 / 5000
Rate of Interest R = 3.5 %
Hence , the interest rate is 3.5 %
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PLEASE HELP ASAP!!
The table of values represents the function g(x) and the graph shows the function f(x). Which statement about the functions is true?
-all of the x-intercepts of f(x) are common to those of g(x)
-f(x) and g(x) intersect at exactly two points
-the minimum value of f(x) is less than the minimum value of g(x)
-f(x) and g(x) have the same y-intercept
Using function concepts, it is found that the correct statement is given by:
all of the x-intercepts of f(x) are common to those of g(x).
What are the x-intercepts of the functions?They are the values of x when x = 0, hence:
For g(x), it is of x = -1 and x = 1.For f(x), it is of x = -1.Hence, the first statement is correct, and the x-intercept x = -1 of f(x) is common to the x-intercept x = -1 of g(x).
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what is the area of a parallelogram with a base of 2.5 cm and a height of 6cm
The area of parallelogram with a base of 2.5 cm and a height of 6cm is 15 cm³.
What is a quadrilateral?
quadrilateral is a plane mathematical closed figure consist of four side and four edges. There are 7 types of quadrilateral.
Trapezium, Parallelogram, Rectangle, Rhombus, Square, Kite.
and, a parallelogram is a quadrilateral formed by two pairs of parallel lines. Unlike a rectangle, where all angles are 90 degrees, opposite sides in a parallelogram are equally long, and opposite angles are equally sized.
Here, it is given that :
base "b" of parallelogram is = 2.5 cm
height "h" of parallelogram is = 6 cm
Now, the area of parallelogram is :
A = bh
A = 2.5 x 6
A = 15 cm³
Therefore, the area of parallelogram is 15 cm³.
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Y’all should Frl help me
Answer:
Step-by-step explanation:
Plug in 6 for x for g(x) and f(x)
f(6) = 2(6)⁵ = 15,552
g(6) = 10 x 4⁶ = 40,960
15,552 < 40,960
f(6) < g(6)
What statistical test and how many of them will need to be used to explore the difference in average cholesterol within each group before and after the treatment (i.e., how much did cholesterol level change within each group as result of the treatment)?
Answer:
The statistical test to be used is the paired t-test.
Step-by-step explanation:
The dependent t-test (also known as the paired t-test or paired-samples t-test) compares the two means associated groups to conclude if there is a statistically significant difference between these two means.
We use the paired t-test if we have two measurements on the same item, person or thing. We should also use this test if we have two items that are being measured with a unique condition.
For instance, an experimenter tests the effect of a medicine on a group of patients before and after giving the doses.
Similarly, in this case a paired t-test would be used to deter whether there was any changes in the cholesterol level within each group as result of the treatment.
Thus, the statistical test to be used is the paired t-test.