Answer:
2x³ - 2x² + 4x + 2
Step-by-step explanation:
Step 1: Write expression
(4x - x³ + 3) - (2x² - 3x³ + 1)
Step 2: Distribute negative
4x - x³ + 3 - 2x² + 3x³ - 1
Step 3: Combine like terms
2x³ - 2x² + 4x + 2
what is the quotient of 2/5 divided by 3/7
2/5 ÷ 3/7
= 2/5 × 7/3
= 2 × 7/5 × 3
= 14/15
Dividing two fractions is the same as multiplying the first fraction by the reciprocal value of the second fraction. The first sub-step is to find the reciprocal (reverse the numerator and denominator, reciprocal of 3/7 is 7/3) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. In the next intermediate step, the fraction result cannot be further simplified by canceling.
I need this with overtime pay.
Kerry worked 46 hours last week. His hourly rate is $9.60. He has the following deductions taken from his pay: federal income tax at the rate of 10 percent, Social Security tax at the rate of 6.2 percent, Medicare tax at the rate of 1.45 percent, health insurance premiums of $12.20, and union dues of $9.50. Kerry’s net pay for last week was $. Hide Feedback Incorrect Check My Work Feedback Gross pay includes regular hours times regular pay, plus overtime hours times overtime pay. The overtime pay rate is 1½ times the regular rate of pay. Deductions—both required and voluntary—are subtracted from gross pay to compute net pay. (Round to the nearest cent for all calculations.)
Answer:
here to try to help!
Step-by-step explanation:
346.96 why? Kerry was not payed at the overtime for extra hours hope it helped!
PLEASE HELPPPPPPPPPPPPP MEEEEEEEEEEEE
Answer:
7/24
Step-by-step explanation:
two minuses make a +,
meaning this equation is basically
-1/12+3/8
find a common denominator by LCM.
8,16,24,32
12,24,36,48
they share 24
denominator is 24
12*2 is 24, -1*2 = -2. 8*3 = 24 so we do 3*3 = 9
-2+9/24
7/24
Only the smartest person can help me with Algebra 2! Answer how many you can!
Part 3
Using the concepts of domain and range of functions, we have that:
10. The range is y ≥ 2.
11. The domain is all real numbers, the range is y ≤ 3, and it is a function.
12. The domain is (-4,3], and the range is (-5,5).
What are the domain and the range of a function?The domain of a function is the set that contains all the values of the input. In a graph, it is represented by the values of x.The range of a function is the set that contains all the values of the output. In a graph, it is represented by the values of y.Hence, for these problems:
10. The range is y ≥ 2.
11. The domain is all real numbers, the range is y ≤ 3, and it is a function.
12. The domain is (-4,3], and the range is (-5,5).
In item 11, we have that it is a function because it has no vertically aligned points, that is, each value of x is associated with only one value of y.
In item 12, the open intervals are due to the open circles at the extremes of the domain and the range on the graph.
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which calculation would you use to indicate values in a data set that are above or below the average monthly order totals?
To indicate values in a data set that are above or below the average monthly order totals use AVG([Order Total]). Thus, option (D) is correct.
AVG([Order Total]): This expression calculates the average of the "Order Total" values in your data set. The average is simply the sum of all the order totals divided by the number of data points.
SUM([Order Total]) calculates the total sum of all order totals.
AVG([Order Total]) then divides that sum by the number of data points to find the average.
Now, to determine which values are above or below the average monthly order totals:
If an individual monthly order total is greater than the calculated AVG([Order Total]), it means that particular month had above-average order totals.If an individual monthly order total is less than the calculated AVG([Order Total]), it means that particular month had below-average order totals.Thus, option (D) is correct.
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The question attached here seems to be incomplete, the complete question is:
Which calculation would you use to indicate values in a data set that are above or below the average monthly order totals?
Select an answer:
AVG(SUM [Order Total])
SUM({Order Total])
SUM(AVG [Order Total])
AVG([Order Total]
one of the requirements of regression analysis is called the multicollinearity assumption. how is multicollinearity defined?
Multicollinearity can be defined as when two independent variables are correlated, multicollinearity occurs. Reason: Only the interactions between the independent variables are considered multicollinear.
Multicollinearity is the prevalence of excessive intercorrelations amongst or extra impartial variables in a more than one regression model. Multicollinearity: Multicollinearity exists whilst or extra of the explanatory variables are extraordinarily correlated.
This is a hassle as it could be tough to disentangle which ones first-rate explains any shared variance with the outcome. It additionally indicates that the 2 variables may also in reality constitute the identical underlying factor. Multicollinearity takes place whilst or extra impartial variables are extraordinarily correlated with each other in a regression model. This method that an impartial variable may be anticipated from any other impartial variable in a regression model.
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upon receiving your first salary, you deposited 3000 taka monthly in a fund for your future for 18 years. the fund earns 6% interest rate compounded monthly. after 18 years, you want it to make payments at the end of every quarter for five year 4.5% compounded quarterly, what is the amount of each annuity payment to you?
The Annuity payment will be "65,209.35 Taka". A further solution is provided below.
Given:
Monthly payment,
= 3000 Taka
Interest rate,
= 6% (compounded monthly)
Time,
= 18 years
The Future value will be:
→ \(FV = PMT\times \frac{((1+r)^{nt}-1)}{r}\)
By putting the values, we get
\(=3000\times \frac{((1+\frac{6}{12\times 100} )^{12\times 18}-1)}{\frac{6}{12\times 100} }\)
\(=3000\times \frac{((1+\frac{6}{1200} )^{216}-1)}{\frac{6}{1200} }\)
\(=1,162,059.58 \ Taka\)
hence,
The Annuity payment will be:
→ \(P=\frac{PV(\frac{r}{n\times 100} )}{1-(1+\frac{4.5}{4\times 100} )^{-4\times 5}}\)
\(=P=\frac{PV(\frac{r}{n\times 100} )}{1-(1+\frac{4.5}{4\times 100} )^{-20}}\)
By substituting all the values, we get
\(=65,209.35 \ Taka\)
Thus the correct answer is "65,209.35 Taka".
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yall js help me w this one:
Wu gets paid $250 over the winter for clearing his neighbour’s driveway of snow. He gets
paid an extra $5 each time that he feeds the cat when his neighbour is away.
a. Write an expression for this situation. Reminder: An expression does not contain
an equal sign.
Answer:
245
Step-by-step explanation:
b3ecause the estation of mars is diferen to the eath so is 245 the sincunference of tis question you welcome
The sum of ages of 3 siblings, Alice, Bruce and Chuck is 27. The sum of ages of Alice and Bruce is 14 and the sum of ages of Bruce and Chuck is 22. Find each sibling's age by using system of linear equations.
Answer:
Alice = 5
Bruce = 9
Chuck = 13
Step-by-step explanation:
alice= x
Bruce = y
Chuck = z
x+y+z= 27
x+y= 14
therefore z= 27-14= 13
Chuck = 13
y+13 (z) = 22
therefore y = 22-13= 9
Bruce = 9
9+13= 22
therefore x= 27 - 22= 5
Alice = 5
confirmation
5 + 9 + 13 = 27
5+9= 14
9 + 13 = 22
Each sibling's age i..e Alice be 5 years, Bruce be 9 years, and Chuck be 3 years.
Given that,
The sum of ages of 3 siblings, Alice, Bruce, and Chuck is 27. The sum of ages of Alice and Bruce is 14 and the sum of ages of Bruce and Chuck is 22.Here we assume Alice be x, Bruce be y, and Chuck be z.Based on the above information, the calculation is as follows:
x + y + z = 27
x + y = 14
So,
z = 27 - 14
= 13
i.e. Chuck = 13
Now
y + 13 (z) = 22
So,
y = 22 - 13
= 9
i.e. Bruce = 9
Now
9+13= 22
So,
x = 27 - 22
= 5
i.e. Alice = 5
Therefore we can conclude that each sibling's age i..e Alice be 5 years, Bruce be 9 years, and Chuck be 3 years.
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Vectors x and y have lengths 18 and 24 respectively, and the cosine of the angle between them is startfraction 5 over 9 endfraction. find the scalar projection of x onto y and their dot product. xy = x · y =
The scalar projection of x onto y is 10, and the dot product of x and y is 240.
What is the scalar projection of x onto y?The scalar projection of x onto y is given by the formula:
proj_y x = |x| cos(θ),
where |x| is the length of x, cos(θ) is the cosine of the angle between x and y, and proj_y x is the scalar projection of x onto y.
So we have:
proj_y x = |x| cos(θ) = 18 (5/9) = 10.
The dot product of x and y is given by the formula:
x · y = |x| |y| cos(θ),
where |x| and |y| are the lengths of x and y, and cos(θ) is the cosine of the angle between x and y.
So we have:
x · y = |x| |y| cos(θ) = 18 × 24 × (5/9) = 240.
Therefore, the scalar projection of x onto y is 10, and the dot product of x and y is 240.
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evaluate the expression 6x + 4 9/10 when x = 2/3.
x=2/3
6(2/3) + 4 9/10 =4 + 4 9/10 = 8 9/10
Answer:
2x-1=y,2y+3=x
Step-by-step explanation:
no explanation
Ellie runs 5/6 mile in 10 minutes. What is Ellie's speed in miles per minute?
Answer:
1/12 mi/min = 0.083 mi/min
Step-by-step explanation:
From the question given above, we obtained the following information:
Distance (d) = 5/6 mile
Time (t) = 10 mins
Speed (S) =?
Speed is simply defined as the rate of change of distance moved with time. It can be represented mathematically by the following equation:
Speed (S) = Distance (d) / time (t)
S = d/t
With the above formula, we can calculate Ellie's speed as follow:
Distance (d) = 5/6 mile
Time (t) = 10 mins
Speed (S) =?
S = d/t
S = 5/6 ÷ 10
S = 5/6 × 1/10
S = 5/60
S = 1/12 mi/min = 0.083 mi/min
Therefore, Ellie's speed is 1/12 mi/min.
Ellie speed in miles per minute is 1 / 12
Speed:Speed is a scalar quantity with only magnitude and no direction. Speed measures how fast an object is in motion.
Speed is represented mathematically as follows:
speed = distance /time
Ellie covers 5/6 miles in 10 minutes. Therefore,
distance = 5/6 miles
time = 10 minutes
Speed = \(\frac{\frac{5}{6} }{10}\) = \(\frac{5}{6}\) ×\(\frac{1}{10}\) = \(\frac{5}{60}\) = \(\frac{1}{12}\) miles per minutes
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Which measure is most appropriate to describe the center of the data in the stem-and-leaf plot below? Pounds of food Collected.
0. 5, 6
1. 0, 2, 3, 3, 4
2. 1, 9
3. Blank
4. 2
5. 1
A interquartile B range C median D mean range
The answer choice which is most appropriate to describe the center of the data as represented is; Median.
Which statistical measure best reflects the center of the given data?It follows from the task content that the stemans leaf plot shown in the task content is such that;
It contains outliers such as 5.1 and 4.2 and hence, the median best appropriates the central of the data distribution as it is minimally influenced by the extremes of data.
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A kite attached to 37 feet of string is flying 25 feet above the ground. What is the angle of elevation?
Answer: 42.5 degrees
Step-by-step explanation:
Sin= Opposite/hypotenuse or Height/ String length
when we don't know the angle we use sin^-1(OPP/HYP) so sin^-1(25/37)= 42.51
if L || m, solve for x and y.
x=
y=
Answer:
x = 16
y = 10
Step-by-step explanation:
See attached worksheet.
Solve the equation.
5x + 12 = -13
Answer:
Simplifying
5x + 12 = -13
Reorder the terms:
12 + 5x = -13
Solving
12 + 5x = -13
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-12' to each side of the equation.
12 + -12 + 5x = -13 + -12
Combine like terms: 12 + -12 = 0
0 + 5x = -13 + -12
5x = -13 + -12
Combine like terms: -13 + -12 = -25
5x = -25
Divide each side by '5'.
x = -5
Simplifying
x = -5
Step-by-step explanation:
Answer: -5
Step-by-step explanation:
5x = -13 - 12
5x = -25
x = -25/5
x = -5
questions 1-3 USE
=
>
<
≤
≥
4. use less, more, or an equal amount
5. use
f = 0
a = 0
F N = 0
= 0
6.use
The roughness of the surface depends on the amount of contact between the block and the incline
The roughness of the surface depends on the angle of the incline
The larger the mass the larger the roughness of the surface
The larger the mass the lower the roughness of the surface
7. use
The frictional force is parallel to the floor
The frictional force is equal to the weight
The normal force is equal to the coefficient of friction
The normal force is directed perpendicular to the incline
The weight is directed along the incline
The weight is equal to the normal force
1. > (greater than) is used when the first number is greater than the second number. This symbol can be used in the form of an equation or inequality. For example, \(7 > 3, or 2x + 3 > 7x – 2.\)
2. < (less than) is used when the first number is less than the second number. This symbol can also be used in the form of an equation or inequality.
For example, \(3 < 7 or 2x + 3 < 7x – 2.\)
3. ≤ (less than or equal to) is used when the first number is less than or equal to the second number. This symbol can be used in the form of an equation or inequality.
For example,\(3 ≤ 3 or 2x + 3 ≤ 7x – 2.\)
4. An equal amount of force is used to hold a heavy object in place as to move a lighter object across the same surface. In other words, if there are two boxes of different weights, the same amount of force is required to move them across the same surface.
5. f = 0 (the force is zero) means that there is no force. F N = 0 (the normal force is zero) means that there is no normal force, and a = 0 (acceleration is zero) means that there is no acceleration.
6. The roughness of the surface depends on the angle of the incline. The larger the angle, the rougher the surface. If the angle is small, the surface is smoother.
7. The frictional force is parallel to the floor. The normal force is directed perpendicular to the incline. The weight is directed along the incline, and the weight is equal to the normal force. The frictional force is equal to the weight multiplied by the coefficient of friction.
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Here are two squares, A and B. A B The length of each side of square B is 4cm greater than the length of each side of square A. The area of square B is 70cm2 greater than the area of square A. Find the area of square B. Give your answer correct to 3 significant fi
Answer:
La²+8La+16 = La²+70
Step-by-step explanation:
8La+16 = 70
8La=70-16
La=54/8
La= 6.75
Area b = (6.75+4)*(6.75+4)
Area b = 10.75*10.75
Area b =115.563
The area of a square is the square of its side lengths
The area of square B is 116 centimeter square
Let the side length of square A be (a), and the side length of square B be (b)
So, we have:
\(\mathbf{A_a = a^2}\)
\(\mathbf{A_b = b^2}\)
From the question, we have:
\(\mathbf{A_b = 70 + a^2}\)
\(\mathbf{b = 4 + a}\)
Take square of both sides
\(\mathbf{b^2 = (4 + a)^2}\)
\(\mathbf{b^2 = 16 + 8a+ a^2}\)
Substitute \(\mathbf{b^2 = 16 + 8a+ a^2}\) in \(\mathbf{A_b = b^2}\)
\(\mathbf{A_b = 16 + 8a+ a^2}\)
So, we have:
\(\mathbf{16 + 8a+ a^2 = 70 + a^2}\)
Subtract a^2 from both sides
\(\mathbf{16 + 8a = 70}\\\)
Subtract 16 from both sides
\(\mathbf{8a = 54}\)
Divide both sides by 8
\(\mathbf{a = 6.75}\)
Recall that:
\(\mathbf{A_b = 70 + a^2}\)
So, we have:
\(\mathbf{A_b = 70 + 6.75^2}\)
\(\mathbf{A_b = 115.5625}\)
Approximate
\(\mathbf{A_b = 116}\)
Hence, the area of square B is 116 centimeter square
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Interest=? Principle=$580 2% 6 months *
$0.58
$5.80
$58.00
A billion dollars
Answer:
The interest is $5.80
Step-by-step explanation:
Here, we want to
calculate the interest on $580 for 6 months at a rate of 2%
Mathematically, we use the formula;
I = PRT/100
As T is not up to a year, we did use by 12 which is 6/12 = 0.5
P = 580
R = 2%
Substituting these values in the interest formula, we have;
I = (580 * 2 * 0.5)/100 = $5.80
A town has a population of 3000 and grows at 2.5% every year. To the nearest tenth of a year, how long will it be until the population will reach 4600?
It will take the town 21 years 4 months to reach 4600 in population
What is rate?
a rate is a ratio that compares two different quantities which have different units. For example, if we say John types 50 words in a minute, then his rate of typing is 50 words per minute. The word "per" gives a clue that we are dealing with a rate.
initial population = 3000
population increase every year = 2.5% of 3000
which is 2.5/100 x 3000 = 75
let the time taken to reach 4600 be d
increment for d number of years = 75d
Total population after d years is 75d + 3000
so 75d + 3000 = 4600
75d = 4600 - 3000
75d = 1600
d = 1600/75
d = 21.33 years which is 21 years 4 months
In conclusion 21 years 4 months is the time taken for the ton tto get tto 4600
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Find the area of the figure.
A: 114 cm2
B: 350 cm2
C: 418 cm2
D: 447 cm2
Answer:
The answer is C. 418cm2
Step-by-step explanation:
9) Find AC. i’ll give brainliest
Answer:
AC = 526,5
Step-by-step explanation:
use Law of Sines
sin 41.82°/381 = sin 67.82°/AC
.67AC = 352.8
AC = 526.5
Can someone please help me ? :)
No solution
2y = 4x + 6
What is the answer
Answer:
do i solve for y or x
Step-by-step explanation:
Answer:
The answer is y = 2x + 3 This is the right answer
Use Synthetic division to solve (3x^4+6x^3 + 2x2 +9x+10)÷(x+ 2). What is the quotient?
Answer:
Option B.
Step-by-step explanation:
We have to find the quotient of the expression \((3x^4+6x^3+2x^2+9x+10)\) when divided by (x + 2) by synthetic division.
-2 | 3 6 2 9 10
| ↓ -6 0 -4 -10
3 0 2 5 0
Solution of the synthetic division will be = (3x³ + 2x + 5)
Therefore, quotient after division will be, (3x³ + 2x + 5) and the remainder is 0.
Therefore, (3x³ + 2x + 5) will be the answer.
Option (B) will be the correct option.
Answer:
B
Step-by-step explanation:
I did the work and this one is very tough
Mike wants to make meatloaf. His recipe
uses a total of 5 pounds of meat.
If he uses a 3 to 1 ratio of beef to pork, how
much pork will he use? Enter your answer as a
mixed number in simplest terms.
Enter the correct answer.
000
DONE
Clear all
+
2
Answer:
1 1/4 pounds.
Step-by-step explanation:
The ratio of beef to pork is 3:1. What this means is that out of the 5 pounds of meat Mike will use for his meatloaf, 3 parts of it will be beef and 1 part will be pork, which gives us four parts total.
So the ratio of pork to total meat would be 1:4, or 1/4. Now we need to multiply 5 by 1/4 in order to get the amount of pork. Since multiplying by 1/4 is the same as dividing by 4, we can just divide to make things simpler.
\(p = 5 \times \frac{1}{4} \\ p = \frac{5}{4} \)
The answer, expressed as an improper fraction, is 5/4. However, the question is asking for a mixed number, so we'll need to convert our answer. We just need to subtract from the numerator so that the fraction is equal to 4/4.
\( \frac{5}{4} - \frac{4}{4} = \frac{1}{4} \)
Since 4/4 is equivalent to 1, we'll just simplify this further.
\(p = \frac{4}{4} + \frac{1}{4} \\ p = 1 \frac{1}{4} \)
30 points 2 questions pls help me
Answer:
7n is greater than or equal to 21
t4+10
Step-by-step explanation:
the probability of contracting a stomach virus while visiting mexico is 23%. find the probability that amongst 12 students visiting mexico 3. exactly five students contract a stomach virus: 4. more than two students contract a stomach virus
The probability that exactly five students among the 12 visiting Mexico will contract a stomach virus is approximately 0.2173 and the probability that more than two students among the 12 visiting Mexico will contract a stomach virus is approximately 0.4866.
What is probability?
Probability is a branch of mathematics that deals with quantifying the likelihood or chance of an event occurring.
Probability that exactly five students contract a stomach virus:
Using the binomial probability formula, we have:
\(P(X = 5) = (12C5) * (0.23^5) * (0.77^7)\)
\(P(X = 5) = (792) * (0.23^5) * (0.77^7)\)
P(X = 5) ≈ 0.2173 (rounded to four decimal places)
Therefore, the probability that exactly five students among the 12 visiting Mexico will contract a stomach virus is approximately 0.2173.
Probability that more than two students contract a stomach virus:
We need to calculate the probabilities of three, four, and five students contracting a stomach virus and then sum them up.
P(X > 2) = P(X = 3) + P(X = 4) + P(X = 5)
Using the binomial probability formula for each case:
\(P(X = 3) = (12C3) * (0.23^3) * (0.77^9)\\\\P(X = 4) = (12C4) * (0.23^4) * (0.77^8)\)
P(X = 5) ≈ 0.2173 (calculated previously)
Now, let's calculate each probability and sum them up:
P(X > 2) = P(X = 3) + P(X = 4) + P(X = 5)
\(P(X > 2) = (12C3) * (0.23^3) * (0.77^9) + (12C4) * (0.23^4) * (0.77^8) + 0.2173\)
P(X > 2) ≈ 0.4866 (rounded to four decimal places)
Therefore, the probability that more than two students among the 12 visiting Mexico will contract a stomach virus is approximately 0.4866.
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Determine whether each relation represents a function. If it is a function, state the domain and range. a) {(1,4),(2,5),(3,6),(4,7)} b) {(−3,9),(−2,4),(0,0),(1,1),(−3,8)}
a) The relation {(1,4),(2,5),(3,6),(4,7)} represents a function. Domain: {1,2,3,4}. Range: {4,5,6,7}.b) The relation {(−3,9),(−2,4),(0,0),(1,1),(−3,8)} does not represent a function due to multiple outputs for input -3.
a) The relation {(1,4),(2,5),(3,6),(4,7)} represents a function because each input value (x) has a unique output value (y). The domain of the function is {1,2,3,4}, which includes all the x-values. The range is {4,5,6,7}, which includes all the corresponding y-values. In this case, for each x-value, there is only one y-value associated with it.
b) The relation {(−3,9),(−2,4),(0,0),(1,1),(−3,8)} does not represent a function because the input value -3 is associated with two different output values, 9 and 8. In a function, each input value should have a unique output value, but in this case, the input -3 has two different outputs, violating the definition of a function.Therefore, the relation in (a) represents a function with a defined domain and range, while the relation in (b) does not represent a function due to the presence of multiple outputs for a single input.
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Drag the label for the length of the sides of the triangle shown that would satisfy the following conditions: cos(B) = 9/41
tan (C) = 9/40 Not all choices will be needed
Trigonometry
Answers:
AB = 9 (vertical leg)AC = 40 (horizontal leg)BC = 41 (hypotenuse===============================================
Explanation:
We're told that
cos(B) = 9/41
Since the cosine ratio involves adjacent/hypotenuse, we can see that the adjacent side is 9 and the hypotenuse is 41. For angle B, the adjacent side is the leg closest to the angle in question. So that would be side AB.
Therefore, AB = 9 and BC = 41 are the adjacent and hypotenuse for reference angle B.
Apply the pythagorean theorem to solve 9^2+x^2 = 41^2, and you should get x = 40. This is the other leg of the triangle. Or you could note how tan(C) = 9/40 to imply that AC = 40 is the adjacent side for reference angle C.