The answer to the arithmetic 15 x 2 - 8 x 40 + 896 x 2 is 1502
What is arithmetic?Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them
Using the PEDMAS rule which states that mathematical expressions with multiple operators need to be solved from left to right in the order of BODMAS.
15 x 2 - 8 x 40 + 896 x 2 can be solved thus:
Solving the multiplication first;
(15 x 2) - (8 x 40) + (896 x 2)
solving the addition and subtraction
30 - 320 + 1792
1502
Using PEDMAS, the answer to the arithmetic is 1502
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A researcher is interested in determining the average number of years employees of a company stay with the company.
If past information shows a standard deviation of 7 months, what size sample should be taken so that at 95% confidence the margin of error will be 2 months or less?
The size sample that should be taken so that at 95% confidence the margin of error will be 2 months or less is:47.0596.
How to find the sample size?Using this formula to find the sample size
n = z² × σ² / e²
Where,
n = sample size =?
z = z-score = 1.96
σ = Standard deviation = 7 months
e = Margin of error = 2 months or less
Let plug in the formula
n = (1.96²× 7²) /2²
n = 3.8416 × 49 / 4
n =47.0596
Therefore the sample size is 47.0596.
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Is it possible for a number to be a product of 2, a product of 5,
and a product of 10? Explain.
The possible number is 10 which is a product of 2, 5, 10
LCM stands for "Least Common Multiple." The smallest multiple that two or more numbers share is defined as the least common multiple. It is also known as the Least Common Divisor (LCD). For example, LCM (4, 5) = 20. In this case, the LCM 20 is divisible by both 4 and 5, so 4 and 5 are referred to as the divisors of 20.
Given numbers 2, 5, 10
We have to find the number which is produced by the given numbers
Now we have to find the LCM of these numbers
LCM of 2, 5, 10
2 = 2 x 1
5= 5 x 1
10 = 2 x 5
= 1x 2 x 5
= 10
The LCM of 2,5,10 is 10
Therefore 10 is the required number which is a product of 2, 5, 10
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calculate the area (ignore the scribble)
Rearrange g
=
fr to make f the subject.
Answer:
f=g/rStep-by-step explanation:
divide by R
markus makes $65,500 annually. assuming markus is paid on the 1st and the 15th of every month, calculate his earnings
Markus' biweekly earnings (gross pay every two weeks) are $2,727.16.
How is the biweekly earnings determined?The annual gross pay can be divided by 26 to get the biweekly earnings.
Another way to compute the biweekly earnings is by adding up the withholding taxes, deductions, and net earnings.
In practice, the net earnings are equal to the gross pay less withholding taxes and deductions.
Annual gross pay = $65,500
Payment period = biweekly (1st and 15th every month)
Withholding taxes:Social Security = $156.19
Medicare = 36.53
Federal tax = 445.96
Total withholding = $636.68
Deductions:Retirement = $45
Health Insurance = $200
Total deductions = $245
Net Earnings = $1,845.48
Biweekly ross pay (earnings) = $2,727.16 ($636.68 + $245 + $1,845.48)
Thus, Markus earns $2,727.16 every two weeks.
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y is directly proportional to x3 When x = 10, y = 250
(a) Find a formula for y in terms of x.
Answer:
y = 0.25x³
Step-by-step explanation:
Since y is directly proportional to x³, then y = kx³, where k is a constant.
When x = 10, y = 250,
250 = k(10)³
1000k = 250
∴ k = 0.25
∴ y = 0.25x³
the sum of two numbers is 46. the larger number is two less than three times the lesser number.
Answer:
y=12
x=34
Step-by-step explanation:
x+y=46
3y-2=x
(3y-2)+y=46
4y-2=46
+2. +2
4y=48
/4. /4
y=12
x+12=46
-12. -12
X=34
Hopes this helps please mark brainliest
Calculate the area of this triangle.
5 cml
13 cm
12 cm•
Answer: Area of triangle=30 cm²
Step-by-step explanation:
Let's name the triangle ABC.
Assuming these are the 3 sides of the triangle, and naming them a,b,c.
a=5 cm
b=13 cm
c=12 cm
Semi perimeter of the triangle ABC= s = (a+b+c)/2
s=(5+13+12)/2 =30/2=15.
Area of triangle ABC= √(s * (s-a)*(s-b)*(s-c)
= √(15*(15-5)*(15-13)*(15-12)
= √15*10*2*3
= √150*6
=√900
=30 cm²
Area of triangle ABC = 30 cm².
1.45 + -1/5 + -5/8
faststtttt and please explain how you get it
Answer: 5/8
Step-by-step explanation:
remove the +'s because -'s are more valued. -1/5 is 0.2 and because we're subtracting 1.45-0.2 its 1.25. -5/8 = 0.625 and if you subtract 1.25-0.625 its 0.625 so its just 5/8
[tex]\frac{5}{8} .[/tex]
Step-by-step explanation:1. Write the expression.[tex]1.45 + (-\frac{1}{5} )+ (-\frac{5}{8} )[/tex]
2. Rewrite the signs.[tex]1.45 -\frac{1}{5} -\frac{5}{8}[/tex]
3. Convert all numbers into fractions.[tex]\frac{145}{100} -\frac{1}{5} -\frac{5}{8}[/tex]
4. Simplify the first fraction.[tex]\frac{145/5}{100/5} -\frac{1}{5} -\frac{5}{8}\\ \\\frac{29}{20} -\frac{1}{5} -\frac{5}{8}[/tex]
5. Find a common denominator between the 3 fractions by multiplying their terms.Note. You always need to multiply each fraction by the same number on both numerator and denominator.
[tex]\frac{29*2}{20*2} -\frac{1*8}{5*8} -\frac{5*5}{8*5}\\ \\\frac{58}{40} -\frac{8}{40} -\frac{25}{40}[/tex]
6. Rewrite and solve.[tex]\frac{58-8-25}{40} \\ \\\frac{25}{40}[/tex]
7. Simplify the fraction.[tex]\frac{25/5}{40/5}\\ \\\frac{5}{8}[/tex]
8. Express your result.[tex]1.45 + (-\frac{1}{5} )+ (-\frac{5}{8} )= \frac{5}{8} .[/tex]
(Multiplying and Dividing with Scientific Notation MC)
3.185x10¹7
9.1x108
Divide
Write the final answer in scientific notation.
The correct answer or scientific notation when 3.185× 10¹⁷ is divided by 9.1×10⁸ is 3.46×10⁸ and multiplying 3.185× 10¹⁷ with 9.1×10⁸ is 2.9×10²⁶.
It is given in the question that 3.185× 10¹⁷ is divided by 9.1×10⁸
we can write 3.185×10×10¹⁶ which equals 31.5×10¹⁶.
Now dividing 31.5×10¹⁶ by 9.1×10⁸ we get 3.46×10⁸.
Now multiplying 3.185× 10¹⁷ with 9.1×10⁸ we get 28.98×10²⁵
Converting 28.98×10²⁵ in scientific notation we get 2.9×10²⁶.
Numbers that are either too large or too little to be conveniently stated in decimal form can be expressed using scientific notation and known as standard form in the UK .
In scientific notation, a representation of a number that is a power of ten can also be written with equal ease. Additionally, you'll see that the amount of zeros in a regular decimal expression is exactly equal to the power to which 10 is raised.
Any time a number is expressed in words, it must first be written down as a regular decimal number before being converted. "Ten million" becomes "10,000,000" and vice versa.Ten million is written in powers of ten notation because there are seven zeros in all.
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The last time it placed an order for ingredients, Sweet Treats Bakery ordered 1,090 kilograms of sugar. This time, the bakery is ordering 654 kilograms. What is the percent of the decrease in the size of the sugar order?
Please help
Answer: The size of the sugar order decreased by 40%.
Step-by-step explanation:
1,090 is 100%
654 is 60% of 1,090 (1,090 ÷ 0.6 = 654)
1,090 - 654 = 436, and 436 is 40% (0.4) of 1,090
1,090 (100%) - 436 (40%) = 654 (60%)
The percent of the decrease in the size of the sugar order is 40%.
Jenni wrote a conditional statement an it’s converse conditional if the angles are right angles then the angles have the same measure
Jenni wrote the converse statement properly, however the statement is false, hence the correct option with a counter example is:
Yes; two angles that each measure 41°.
What are conditional and converse statements?A conditional statement is written as follows:
p -> q.
In which the terms of the conditional statement are listed as follows:
p is the hypothesis.q is the conclusion.In this problem, the statement is:
If angles are right angles, then the angles have the same measure.
Hence the terms is:
p: right angles.q: same measure.For the converse statement, the hypothesis and the conclusion are exchanged, hence:
q -> p.
Thus the converse of Jenni's statement is:
If two angles have the same measure, then they are right angles.
Which means that she wrote the converse statement properly.
However, the angles do not necessarily need to measure 90º, they only need to have the same measure, hence the correct option is:
Yes; two angles that each measure 41°.
Missing InformationThe complete problem is:
Jenni wrote a conditional statement and its converse.Conditional: If angles are right angles, then the angles have the same measure.Converse: If angles have the same measurement, then they are right angles.Did Jenni write the converse statement properly? Give a counterexample to dispute the validity of the converse statement.No; two angles that each measure 45°Yes; two angles that each measure 90°Yes; two angles that each measure 41°No; two angles that each measure 82°.
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8. ALGEBRA Diego's Subs is offering $0.75 off its foot-long meatball sub. If this represents a 20% markdown, what is the sub's regular selling price?
A $3.25
в $4.25
C $2.75
D $3.75
The sub's regular selling price, if it represents a 20% markdown is $3.75
option D.
What is meant by cost price and selling price?The precise value that corresponds to the unit price paid is represented by the cost price. In some stock market theories, this value is utilized to establish the value of stock holdings and is used as a key determinant of profitability. The precise value that corresponds to the unit price paid is represented by the cost price.
The amount a buyer pays for a good or service is known as the selling price. Depending on the price that consumers are prepared to pay, the seller is willing to take, and how competitive the price is in relation to other companies in the market, it may change.
Given,
ALGEBRA Diego's Subs is offering $0.75 off its foot-long meatball sub.
Then, C.P-S.P= 0.75
S.P-C.P= 0.75
And also given that it represents 20% mark down.
Then,
((C.P-S.P)/C.P)×100=% mark down
((C.P-S.P)/C.P)×100=20%
(0.75×100)/C.P=20
C.P=75/20
C.P=$3.75
Therefore, the sub's regular selling price is $3.75
So, the answer is option D
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Triangle ABC is similar to Triangle MPN. Find x and y. AB=15. BC=18. AC=9. I need this answer ASAP
The value of x and y in the similar triangles are 10 and 12 respectively.
What are similar triangles?Two triangles are similar if they have the same ratio of corresponding sides and equal pair of corresponding angles.
In other words, similar triangles are the triangles that have corresponding sides in proportion to each other and corresponding angles equal to each other
The triangles ABC and MPN are similar triangles.
Therefore,
∠A = ∠M
∠B = ∠P
∠C = ∠N
Hence, let's find x and y using the proportion as follows:
[tex]\frac{AB}{MP}=\frac{BC}{PN}=\frac{AC}{MN}[/tex]
Hence,
PN = y
MP = x
Therefore, let's find x
[tex]\frac{9}{6}=\frac{15}{x}[/tex]
cross multiply
9x = 90
x = 90 / 9
x = 10
Let's find y
[tex]\frac{9}{6}=\frac{18}{y}[/tex]
cross multiply
9y = 108
y = 108 / 9
y = 12
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Blanche has recently inherited $7900, which she wants to deposit into a savings account. She has determined that her two best bets are an account that compounds semi-annually at an annual rate of 3.7% (Account 1) and an account that compounds daily at an annual rate of 3.9% (Account 2).
Step 2 of 2 : How much would Blanche's balance be from Account 2 over 5.5 years? Round to two decimal places.
9664.9 is the Blanche's balance be from Account 2 over 5.5 years
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given,
Blanche has recently inherited $7900, which she wants to deposit into a savings account. She has determined that her two best bets are an account that compounds semi-annually at an annual rate of 3.7%
an account that compounds daily at an annual rate of 3.9% (Account 2).
We need to find how much Blanche's balance be from Account 2 over 5.5 years
A = p(1 + r/n)nt
A = 7900(1 + 0.037/2)²ˣ⁵⁵
A ≈7900(1 + 0.0185)^11
A ≈ 7900(1.0185)¹¹
A ≈ 7900(1.223)
A=9664.92
9664.9 is the Blanche's balance be from Account 2 over 5.5 years
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Last year, Melissa opened an investment account with $5200. At the end of the year, the amount in the account had decreased by 27%.
(a) Fill in the blank to write the year-end amount in terms of the original amount. Write your answer as a decimal.
(b) Use your answer in part (a) to determine the year-end amount in Melissa's account.
The amount in terms of the original amount is $1,404 and the year end amount is $6,604.
How to find the original amount?a. Original amount
Original amount = 5200 - (5200× .27)
Original amount = $5200 - $1,404
Original amount = $3,796
b. Year-end amount
Year-end amount = 5200+ $3,796
Year-end amount =$8996
Therefore the original amount is $3,796 and the year end is $8996.
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A bag contains 8 red marbles, 9 yellow marbles, and 7 green marbles. How many additional red marbles must be added to the 24 marbles already in the bag so that
the probability of randomly drawing a red marble is
3/5?
A. 11
B. 16
C. 20
D. 24
E 32
The number of additional red marbles to be added to the total 24 marbles present in the bag is 16 marbles.
What is Probability?
Probability is the ability to happen. The subject of this area of mathematics is the occurrence of random events. From 0 to 1 is used to express the value. To forecast how probable occurrences are to occur, probability has been introduced in mathematics. The degree to which something is likely to happen is essentially the definition of probability. This is the fundamental theory of probability, which is also applied to the probability distribution, and from which you will discover the likelihood of results for a random experiment. We must first determine the total number of outcomes in order to calculate the probability that a single event will occur.So, Probability of Event, P(E) = Number of Favourable Outcomes/ Total Number of OutcomesFrom the question, it is given that the,
Number of Red marbles = 8
Number of Yellow marbles = 9
Number of Green marbles = 7
So, the total number of marbles = 8 + 9 + 7 = 24
Let [tex]x[/tex] be the additional number of red marbles added to the bag.
The total number of red marbles after the addition of [tex]x[/tex] red marbles into the bag = [tex]8+x[/tex]
The total number of all marbles after the addition of [tex]x[/tex] red marbles into the bag = [tex]24+x[/tex]
The probability of randomly drawing a red marble is given as equal to [tex]\frac{3}{5}[/tex]
We know that, the probability of randomly drawing a red marble is equal to the ratio of the total number of red marbles to the total number of all marbles.
---> P(R) = n(R)/n(T)
Substituting the given values, we get
3/5 = 8+x / 24+x
---> 5(8+x) = 3(24+x)
---> 40 + 5x = 72+3x
Solving, we get
5x - 3x = 72 - 40
---> 2x = 32
---> x = 16
Therefore, the additional number of red marbles to be added to obtain the required probability is equal to 16.
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What is the answer to: 5/23 ÷ 23/24:
Willl mark brainliest
Answer:
It is 120/529
Step-by-step explanation:
The steps are:
Step 1: When we divided, we change the dividing fraction into mutiplying fraction at the last fraction: 5/23 x 24/23
Step 2: We mutiply it on each row like 5 x 24 & 23 x 23
Step 3: When we finished with the answer, we put it like the order of the fraction: 120 & 529 so we get 120/529
Thats all the step by step explaination!
Please mark me brainliestttttttttttttttttttttttttttttttttttttttttttttttt !!!!!!!!!!!!!!!!!!!!!!!!11
ILL GIVE BRAINLIEST IF CORRECT
Answer:
(-6,4)
Step-by-step explanation:
add the equations together to equal
2y=8
y=4
now solve for x
3x+10(4)=22
3x+40=22
3x=-18
x=-6
Answer:
(-6,4)
Step-by-step explanation:
add the equations together to equal
2y=8
y=4
now solve for x
3x+10(4)=22
3x+40=22
3x=-18
x=-6
Phil shot a 73 on the golf course on Wednesday. He shot a 62 on Thursday. What is the percent of change for his scores?
Answer: 13500%
Step-by-step explanation:
73+62=135
135 to make a percentage you would multiply 135 times 100=13500%
I think thats right
The image of the point (-3, -6)(−3,−6) under a translation is (-1, -8)(−1,−8). Find the coordinates of the image of the point (-9, -3)(−9,−3) under the same translation.
The coordinates of the image of the point (−9,−3) under the same translation will be (-7,-5).
What is geometric transformation?It is defined as the change in coordinates and the shape of the geometrical body. It is also referred to as a two-dimensional transformation. In the geometric transformation, changes in the geometry can be possible by rotation, translation, reflection, and glide translation.
It is given that the image of the point (-3, -6) under a translation is (-1, -8).
The coordinate by which the first given condition is translated as,
(-3, -6) - (x,y) = (-1, -8)
(x,y) = (-3, -6) - (-1, -8)
(x,y) =(-3-(-1), -6-(-8)
(x,y) =(-3+1),(-6+8)
(x,y) =(-2,+2)
The coordinates of the image of the point (-9, -3) are under the same translation obtained as,
=(−9,−3)- (-2,+2)
=(-9-(-2) , (-3-(+2))
=(-9+2),(-3-2)
= -7,-5
Thus, the coordinates of the image of the point (−9,−3) under the same translation will be (-7,-5).
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A line with a slope of -7/16 passes through the point (-16, 7). What is its equation in
slope-intercept form?
A equation of line with a slope of -7/16 passes through the point (-16, 7) is y = (-7/16)x
We know that the formula for the slope-point form of equation of line:
(y - y1) = m(x - x1)
Let (x1, y1) = (-16, 7)
and slope m = -7/16
Using above formula,
(y - 7) = (-7/16)(x - (-16))
y - 7 = (-7/16)(x + 16)
y = -7/16x - 7 + 7
y = (-7/16)x
This equation is slope-intercept form (y = mx + c) with slope -7/16 and y-intercept 0.
Therefore, a equation of line with a slope of -7/16 passes through the point (-16, 7) is y = (-7/16)x
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Which ordered pair in the form (a, b) is a solution of this equation?
4a - 5b = 24
L
Answer: (6, 0)
Step-by-step explanation:
Plug each coordinate in and see if the equation holds true.
At (6,0), [tex]4(6)-5(0)=24[/tex].
So (6, 0) is a solution of the equation.
A store purchased a digital camera and marked it up 100% from the original cost of $863.57. A week later the store placed the digital camera in sale for 40% off. What was the discount price?
Answer:
$1036.28
Step-by-step explanation:
Marking something up by 100% means doubling the price. Let's do this step first:
863.57 * 2 = 1727.14
Next, the discount is 40%
I would find this by taking the 10% value, multiplying that by 4 and subtracting that from our new value
10% = 172.714
40% = 690.856
Now our newest value:
1727.14 - 690.856
1036.284
Round to 2 decimal places (as is proper when dealing with cents):
1036.28
Thus, our newest (discounted) price is:
$1036.28
Trevor is planning a 30-day trip to Africa, where he will visit three countries: first Benin,
then Ghana and then Togo. He wants to spend at least 2 and at most 12 days in Benin, at most 13 days
in Ghana, and at most 9 days in Togo. How many such itineraries are possible? (Assume that each day is
spent in just one country, and that she travels from one country to another at night.
The value of 12 - x can at most be 4 for the given inequality and it is true therefore, all itineraries are possible.
What is inequality?A difference between two values indicates whether one is smaller, larger, or basically not similar to the other.
Inequality is just the opposite of equality for example 2 =2 then it is equal but if I say 3 =6 then it is wrong the correct expression is 3 < 6.
Let's say the day spend in Benin, Ghana and Togo are B, G, and T respectively.
As per the given,
B + G + T = 30
Here, 2 ≤ B ≤ 12, G ≤ 13, and T ≤ 9.
(12 - B) + (13 - G) + (9 - T) = -30 + 12 + 13 + 9 = 4
Also, B ≥ 2 or B ≤ -2 ⇒ 12 - B ≤ 12 - 2 = 10
Hence "The value of 12 - x can at most be 4 for the given inequality and it is true therefore, all itineraries are possible".
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PLEASE HELP
The access code for a car's security system consists of four digits. The first digit cannot be zero and the last digit must be odd. How many different codes are available? (Note that 0 is considered an even number.)
The number of different codes available is ___
(Type a whole number.)
The number of different codes available is 4500 unique codes
What is digit?
A positional numeral system uses a single symbol, such as "2," or a combination of symbols, such as "25," to represent numbers. This single symbol is known as a numerical digit. The word "digit" derives from the fact that ten fingers (Latin: digiti) on each hand correspond to the ten numeral symbols used in the base-10 system, or decimal digits (Old Latin: decem, meaning "ten"). The absolute value of the base determines how many different digits are necessary for a given numeral system with just an integer base. For instance, the binary system (base 2) only needs two digits, whereas the decimal system (base 10) necessitates ten digits (0 through 9). (0 and 1).
The digits are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
There are nine options because the first digit cannot be 0. (assuming 1 can be the first digit as well as all others)
There are 10 options for the second digit, third digit, fourth digit, and fifth digit.
4 digits must be odd, giving you 5 options (1,3,5,7,9)
9*10*10*5=4500 unique codes
Hence, there are 4500 unique codes available
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Determine an nth degree polynomial that satisfies the aforementioned conditions.
A polynomial that satisfies given conditions is:
P(x) = x³ - x² + 81x - 81
In this question, we need to find a polynomial that satisfies given conditions.
We have been given that -9i is a root of polynomial.
This means, the conjugate of -9i that is, 9i must be a root of polynomial p.
From given information we can say that the zeros of polynomial p(x) must be (x - 1), (x + 9i), and (x - 9i)
So, we get a polynomial p(x) = 0
(x - 1)(x + 9i)(x - 9i) = 0
(x - 1)(x² - (9i)²) = 0
(x - 1)(x² - (-81)) = 0
(x - 1)(x² + 81) = 0
x³ - x² + 81x - 81 = 0
Therefore, a polynomial that satisfies given conditions is:
P(x) = x³ - x² + 81x - 81
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increase 24in the ratio 2:3
Answer: 16
Step-by-step explanation:
To *increase* 24 in the ratio 2:3
To *increase* a quantity in given ratio consider new quantity and old quantity.
Formula: New quantity:old quantity=given ratio solution: let us take the new quantity as x, old quantity as 24(given) and given ratio=2:3(given)
-> x:24=2:3
-> x/24=2/3
-> Multiply with 24 on both sides to get x
-> 24*x/24=2/3*24
-> x=16
So, the *increase* of 24 in the ratio 2:3 is 16
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The graph of a quadratic function with vertex (2, 0) is shown in the figure below.
Find the range and the domain.
Write the range and domain using Interval notation.
Answer:
Domain: (-∞, +∞)
Range: [2, +∞)
Step-by-step explanation:
Domain is the "allowable x-values/inputs"
Range is the "possible y-values/outputs when the x-values in the domain are inputted".
From the graph, notice how each end of it extends infinitely to the left and to the right. This means that the domain is infinite and there are no restrictions. Writing it in interval location would look like this:
(-∞, +∞)
Also, notice how the y-values increase from the vertex but do not go below it. That suggests that the range is "lower-bounded" to the vertex, and increases infinitely. Writing it in interval location would look like this:
[2, +∞)
On July 1 2019, crane company purchased new equipment for $75,000. Its estimated useful life was 5 years with a $8000 salvage value. On December 31,2022, the company estimated that the equipment's remaining useful life was 10 years with a revised salvage value of $5000
1. The revised annual depreciation on December 31, 2022, is $3,650.
2. The journal entry to record depreciation on December 31, 2022 is as follows:
Journal Entry:Debit Depreciation Expense $3,650
Credit Accumulated Depreciation $3,650
To record the depreciation expense for the year.
3. The balance in Accumulated Depreciation for Equipment on December 31, 2022, is $37,150.
Cost of equipment = $75,000
Purchase date = July 1, 2019
Estimated useful life = 5 years
Salvage value = $8,000
Depreciable amount = $67,000 ($75,000 - $8,000)
Annual depreciation expense = $13,400 ($67,000/5)
Accumulated Depreciation for two and half years to December 2021 = $33,500 ($13,400 x 2.5)
Book value after 2.5 years = $41,500 ($75,000 - $33,500)
New estimated useful life = 10 years
Revised salvage value = $5,000
Revised depreciable amount = $36,500 ($41,500 - $5,000)
Revised annual depreciation expense = $3,650 ($36,500/10)
Accumulated Depreciation on December 31, 2022 = $37,150 ($33,500 + $3,650)
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