Answer:
321.3 miles driven / 21 gallons used =
15.3 miles driven / gallon used
So we have m = 15.3g
m/g = 15.3
If the odds against an event happening are 40/89, what is the probability of the event happening?
Step-by-step explanation:
Odds against = losses / wins
Probability = wins / (wins + losses)
P = 89 / (89 + 40)
P = 89 / 129
P ≈ 69%
fv=100000, pmt=4000, i/y=5%, n=10, what is pv?
The Present value is $6,139.132.
We have,
FV=100000, pmt = 4000, I =5%, n=10
So, The present value formula is
PV=FV / (1 + \(i)^n\)
So, PV = 100, 000 / (1+ 5/100\()^{10\\\)
PV = 100,000 / (1+ 0.05\()^{10\\\)
PV = 100, 000/ (1.05\()^{10\\\)
PV = 100,000 / 1.6288946
PV= $6,139.132
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6. A company car purchased for $39,600 depreciates at 12% per annum. What is the car
worth after 3 years?
Answer:
$26,986.29
Step-by-step explanation:
We can use the formula for calculating the depreciation of an asset over time:
wor
\(\bold{D = P(1 - \frac{r}{100} )^t}\)
where:
D= the current value of the asset
P = the initial purchase price of the asset
r = the annual depreciation rate as a decimal
t = the number of years the asset has been in use
In this case, we have:
P = $39,600
r = 12% = 0.12
t = 3 years
Substituting these values into the formula, we get:
\(D= 39,600(1 - \frac{12}{100})^3\\D= 39,600(1 - 0.12)^3\\D= 39,600*0.88^3\\D= 39,600*0.681472\\D=26986.2912\)
Therefore, the car is worth approximately $26,986.29 after 3 years of depreciation at a rate of 12% per annum.
Answer:
$26,986.29
Step-by-step explanation:
As the car's value depreciates at a constant rate of 12% per annum, we can use the exponential decay formula to create a function for the value of the car f(t) after t years.
Exponential Decay formula\(\boxed{f(t)=a(1-r)^t}\)
where:
f(t) is the value of the car (in dollars) after t years.a is the initial value of the car.r is the depreciation rate (as a decimal).t is the time period (number of years after purchase).In this case, the initial value is $39,600, and the rate of depreciation is 12% per year. Therefore, the function that models the value of the car after t years is:
\(f(t)=39600(1-0.12)^t\)
\(f(t)=39600(0.88)^t\)
To calculate the value of the car after 3 years, substitute t = 3 into the function:
\(\begin{aligned} f(3)&=39600(0.88)^3\\&=39600(0.681472)\\&=26986.2912\\&=26986.29\;(\sf 2\;d.p.)\end{aligned}\)
Therefore, the car is worth $26,986.29 after 3 years.
The area of a parallelogram can be found by the
equation area = (b)(h)
Find the height of a parallelogram that has an area of
10 2 in? and a base of Ž in.
The height of the parallelogram is
inches.
Pls help am giving brainliest
I think that it might be 7.87 sorry if i am wrong
f(x) = x^2 – 3x +18 What is the value of the discriminant of f? How many distinct real number zeros does ſ have?
Answer:
0+=x^2-3x+18
Step-by-step explanation:
I'm smort- but if its wrong I apologize
A. Translate the verbal phrases into algebraic expressions.3. The square of the quotient of 54 and j
ANSWER
(54/j)²
EXPLANATION
We have to translate this verbal phrase into an algebraic expression. An algebraic expression is a combination of variables, numbers, and arithmetic operations. For example, the expression (x² + 2) is an algebraic expression.
In this phrase, we have "the square of ...", so we will have an expression in the form (...)².
Then, the square is of a quotient, between 54 and j, where 54 is the numerator and j is the denominator.
Hence, the algebraic expression is (54/j)².
Tim has $65 to spend at the sporting goods store. He buys 3 balls for $6 each. How many $8 sports towels can Tim buy? *
Answer:
5
Step-by-step explanation:
balls + sports towels = Total
(3 * 6) + (8x) = 65
18 + 8x = 65
8x = 47
x = 5.875
Cannot buy .875 of a towel so answer has to be rounded down to 5 towels.
100 Points! Algebra question. Write a quadratic equation in standard form with -1/2, 3/4 as its roots. Please show as much work as possible. Photo attached. Thank you!
The cost of a large cake at a bakery is $21.00. The cost of a small cake is
$8.25. The bakery also charges a sales tax of 8.25% and a delivery cost of
$10.50 for each order. The following expression represents the cost of an
(1) order
1.0825(21x + 8.25y) + 10.5
What does the term (21x + 8.25y) represent?
A А
the total cost of the order before delivery
the total delivery cost of the order
B
the total cost of the large cakes ordered
the subtotal cost of all the cakes ordered
before tax and delivery
Answer:
The Subtotal cost of all the cakes before tax and delivery
Step-by-step explanation:
(21x+8.25y)
21 is the price of 1 large cake and X is the number of cakes they want to purchase not counting tax and delivery fee.
8.25 is the price of 1 small cake and Y is the number of cakes they want to purchase not counting tax and delivery fee.
for ten students, a teacher records the following scores of two assessments, quiz 1 and test. quiz 1 (x) test (y) 15 20 12 15 10 12 14 18 10 10 8 13 6 12 15 10 16 18 13 15 mean 11.9 14.3 standard deviation 3.3 3.5 the correlation of quiz 1 and test is 0.568. given the information below, what is the slope and y-intercept for the least-squares line of the quiz 1 scores and test scores? answer choices are rounded to the hundredths place.
The slope and y-intercept for the least-squares line of quiz 1 scores and test scores are;
Slope = 0.6
y-intercept = 7.16
What is a leas-squares regression line?The least-squares regression line is a line that fits the data points on a graph by minimizing the vertical distance between the data points to the regression line.
The table of values are presented as follows;
\({}\) Quiz 1 (x) \({}\) Test (y)
\({}\) 15 \({}\) 20
\({}\) 12 \({}\) 15
\({}\) 10 \({}\) 12
\({}\) 14 \({}\) 18
\({}\) 10 \({}\) 10
\({}\) 8 \({}\) 13
\({}\) 6 \({}\) 12
\({}\) 15 \({}\) 10
\({}\) 16 \({}\) 18
\({}\) 13 \({}\) 15
Mean 11.9 \({}\) 14.3
Standard Deviation 3.3 \({}\) 3.5
The formula for the slope, b, of the least-squares line is presented as follows;
\(\displaystyle b=\frac{\sum \left(x_i-\bar{x}\right)\times \left(y_i-\bar {y}\right)}{\sum \left(x_i-\bar{x}\right)^2}\)
The values of the terms of the equations obtained by using the spreadsheet application MS Excel are;
\(\displaystyle {\sum \left(x_i-\bar{x}\right)\times \left(y_i-\bar {y}\right)}\) = 59.3
\(\displaystyle {\sum \left(x_i-\bar{x}\right)^2\) = 98.9
Therefore;
\(\displaystyle b=\frac{59.3}{98.9} \approx 0.6\)
Slope, b ≈ 0.6The formula for the y-intercept is; c = \(\bar y-b\cdot \bar x\)
Therefore;
c ≈ 14.3 - 0.6 × 11.9 = 7.16
The y-intercept = 7.16Question options;
The possible question options obtained from a similar online are;
Slope = 0.54
y-intercept = 1.22
Slope = 0.6
y-intercept = 7.16
Slope = 0.54
y-intercept = 1.71
Slope = 0.6
y-intercept = 1.22
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i need help
can you look over this picture and see what the answer is
Answer:
AC = 12
Step-by-step explanation:
If BC is parallel to DE then ∠D ≅ ∠B and ∠E ≅ ∠C. Therefore
ΔABC is similar to ΔADE.
The sides of smaller triangle are in proportion with sides of bigger triangle.
Therefore we have the equation:
AC/AE = AB/AD
Substitute the given numbers:
x/x+15 =8/18
18x= 8(x+15)
18x = 8x+120
10x = 120
x = 12
AC=12
A box is filled with shoe boxes. Each shoe box has a volume of 1 cubic foot. Six shoe boxes can fit in each layer and the height of the box is 4 feet. What is the volume of the box?
shoe box = 1 cubic foot = 1 * 1 * 1
1 Layer: 6 shoe boxes -> Layer lenght = 6 feet, layer depht = 1 foot
Box height = 4 feet
Box volume = 6*4*1 = 24 feet
Please help me asap.
Answer:
30.2 aka C
Step-by-step explanation:
The formula for the area of a circle is A = pir^2. Knowing this we can create the equation A = 3.14(3.1)^2. Following PEMDAS square 3.1 to get 9.61. Then you multiply 9.61 with 3.14 to get 30.1754. When you round to the nearest tenth you get 30.2.
Please help me thank you I appreciate it
Answer:
68°
Step-by-step explanation:
PRQ = SRQ gives:
3x-8 = 2x+6
x = 6+8 = 14
So PRQ = SRQ = 34
and
PRS = PRQ+SRQ = 68
Same directions as question #1
Sn = ( -1 )n + 1
The sum of the sequence based on the function Sn = ( -1 )n + 1 will be -6.
How to depict the information?The formula for finding the nth term in an arithmetic sequence given as:
= a + (n - 1)d
Here, Sn is given as ( -1 )n + 1. This is used to illustrate the sum in the sequence. Based on the function given, let's assume that n = 5. Therefore, the 5th term will be:
= (-1)n + 1
= (-1)5 + 1
= (-1)6
= -6
Here is the complete question:
Find the 5th term of a sequence given the function Sn = ( -1 )n + 1.
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The graph of the function rule that models the volume of the sphere has symmetry with respect to ____?
The correct option D: the origin, has the symmetry of the volume of sphere for the graph of the function rule.
Explain the term symmetry along origin?About the Origin: Symmetry. If a point appears on a graph at every time, then the graph is symmetric having respect to the origin. When seen in relation to the origin, this graph is symmetric.A function having a single term which is the sum of a real number, the coefficient, as well as a variable raised to something like a fixed real number is called a power function. (A coefficient is a number which multiplies a variable by an exponent.) Think of equations like area or volume as an illustration.For the stated question.
The volume of the sphere is modeled by the power function with respect to the radius as;
V = f(r) = 4/3πr³
As, r is independent of any of the coordinate axis.
Thus, the function rule's graph, which describes the volume of the sphere, is symmetric with regard to the origin.
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Can you help? And can you show steps please?
The savings account is an illustration of compound interest and the future amount is $860
How to determine the future amount?The given parameters are:
Principal, P = 600
Rate, r = 12%
Time, t = 3
The equation of the future amount is given as:
\(A = Pe^{rt}\)
So, we have:
\(A = 600 * e^{15\% * 3}\)
Evaluate
A = 859.997648736
Approximate
A = 860
Hence, the future amount is $860
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4x - 3y =24
Find the x and y intercept then use them to graph the line
Answer:
y=21-7x
-7 is your slope
21 is your y-intercept
Step-by-step explanation:
you send the 4x the other side and you send the other side opposite so it going to be -4x
-3y= 24-4x
than you divide -3 on 24 and -4x
What’s the correct answer for this question?
Answer: choice B
B would be the most logical answer showing that these 2 events are independent.
if lim x approaches a of f(x) and lim x approaches a of f(g), then lim x approaches a of f(x)/g(x) must exist.True or False?
True. If the limit of f(x) as x approaches a and the limit of f(g(x)) as x approaches a both exist, then the limit of f(x)/g(x) as x approaches a must also exist.
This is because the limit of a function is defined as the value that the function approaches as the input value approaches a certain point. If both the numerator and denominator of a fraction approach a certain value as x approaches a, then the fraction as a whole must also approach a certain value as x approaches a. This is known as the limit of a quotient.
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Can someone pls help me with this last question pls hurry I got 10 mins hurry I’ll do brainliest
Answer:
(12,1)
Step-by-step explanation:
Before the transformation, Point B is at (-8,1).
When it will be reflected, it will be at (8,1)
Then, it shifts 4 points to the right, and so it will be at (12,1)
H
6:00 PM
What is a frostbite?
Write a multiplication equation that represents the question: how many 3/8 are in 8?
Answer:
8
Step-by-step explanation:
\(\frac{3}{8} +\frac{3}{8} +\frac{3}{8} +\frac{3}{8} +\frac{3}{8} +\frac{3}{8} +\frac{3}{8} +\frac{3}{8}\)
\(\frac{3}{8}\) × 8
= 3
In algebra:
\(\frac{3}{8}\) × y = 3
y = 3 ÷ \(\frac{3}{8}\)
y = 8
Determine the center and radius of the following circle equation:
x? + y2 - 2x - 12y +36 = 0
Step-by-step explanation:
x²+ y² -12x - 18y +17 = 0 means : (x²-12x+36)-36+(y²-18y+81)-81-27 =0
(x-6)²+(y-9)² =12²....standard form when the center is (-6 , 9) and radius 12
Answer:
The center is at (1, 6) and the radius is 1.
Step-by-step explanation:
x^2 + y^2 - 2x - 12y +36 = 0
Convert to standard form:
x^2 - 2x + y^2 - 12y = -36
(x - 1)^2 - 1 + (y - 6)^2 - 36 = -36
(x - 1)^2 + (y - 6)^2 = -36 + 36 + 1
(x - 1)^2 + (y - 6)^2 = 1
The center is at (1, 6) and the radius is 1.
The points A, B and C have position vectors a, b, c, referred to an origin O. i. Given that the point X lies on AB produced so that AB : BX = 2 : 1, find x, the position vector of X, in terms of a and b. ii. If Y lies on BC, between B and C so that BY : Y C = 1 : 3, find y, the position vector of Y, in terms of a and b iii. Given that Z is the midpoint of AC, Calculate the ratio XY : Y Z.
i. The position vector of X is 2b - a.
ii. The position vector of Y is (3b + c)/4.
iii. The ratio XY : Y Z is \(|(2b - a) - ((3b + c)/4)|/|((3b + c)/4) - (a + c)/2|\). Simplifying this expression will give us the final ratio.
i. To find the position vector x of point X, we can use the concept of vector addition. Since AB : BX = 2 : 1, we can express AB as a vector from A to B, which is given by (b - a). To find BX, we can use the fact that BX is twice as long as AB, so BX = 2 * (b - a). Adding this to the vector AB will give us the position vector of X: x = a + 2 * (b - a) = 2b - a.
ii. Similar to the previous part, we can express BC as a vector from B to C, which is given by (c - b). Since BY : YC = 1 : 3, we can find BY by dividing the vector BC into four equal parts and taking one part, so BY = (1/4) * (c - b). Adding this to the vector BY will give us the position vector of Y: y = b + (1/4) * (c - b) = (3b + c)/4.
iii. Z is the midpoint of AC, so we can find Z by taking the average of the vectors a and c: z = (a + c)/2. The ratio XY : YZ can be calculated by finding the lengths of the vectors XY and YZ and taking their ratio. Since XY = |x - y| and YZ = |y - z|, we have XY : YZ = |x - y|/|y - z|. Plugging in the values of x, y, and z we found earlier, we get XY : YZ =\(|(2b - a) - ((3b + c)/4)|/|((3b + c)/4) - (a + c)/2|\).
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How would you answer Q5 e step by step please
Answer:
\(\sqrt{6} -3\sqrt{2}\)
Step-by-step explanation:
\(\sqrt{150} -\sqrt{96} -\sqrt{162} +\sqrt{72}\)
\(=\sqrt{25\cdot6} -\sqrt{16\cdot6} -\sqrt{81\cdot2} +\sqrt{36\cdot2}\)
\(=\sqrt{25}\sqrt{6} -\sqrt{16}\sqrt{6} -\sqrt{81}\sqrt{2} +\sqrt{36}\sqrt{2}\)
\(=5\sqrt{6} -4\sqrt{6} -9\sqrt{2} +6\sqrt{2}\)
\(=\sqrt{6} -3\sqrt{2}\)
Answer:
See below.
Step-by-step explanation:
a) √2 + √50 + √98
= √2 + 5√2 + 7√2
= 13√2
c) 5√7 + 2√5 - 3√28
= 5√7 + 2√5 - 6√7
= 2√5 - √7
e) √150 - √96 - √162 + √72
= 5√6 - 4√6 - 9√2 + 6√2
= √6 - 3√2
g) 7√3 - 2√8 + √12 + 3√8
= 7√3 - 4√2 + 2√3 + 6√2
= 9√3 + 2√2
i) 3√49 + 2√288 - √144 - 2√18
= 21 + 24√2 - 12 - 6√2
= 9 + 18√2
= 9(1+ √2)
Is this reasoning valid or not? If it is July then it is summer, and it’s not July therefore it’s not summe.
Answer:
It's invalid
Step-by-step explanation:
What has been attempted i the question is inductive generalization.
Now, to say July is summer is okay.
But to say if it's not July, it's not summer is drawing a generalization that doesn't necessarily apply because it doesn't take into account other factors which are not stated.
This is because July may not be the only month in the summer. It could just be part of the summer months.
Therefore, it's invalid to claim if it’s not July therefore it’s not summer.
Duke Energy reported that the cost of electricity for an efficient home in a particular neighborhood of Cincinnati, Ohio was $104 per month (Home Energy Report, Duke Energy, March, 2012). A researcher believes that the cost of electricity for a comparable neighborhood in Chicago, Illinois is higher. A sample of homes in this Chicago neighborhood will be taken and the sample mean monthly cost of electricity will be used to test the following null and alternative hypotheses.
Assume the sample data lead to rejection of the null hypothesis.
What would be your conclusion about the cost of electricity in the Chicago neighborhood?
The input in the box below will not be graded, but may be reviewed and considered by your instructor. What is the Type I error in this situation?
The Type 1 error in this situation What are the consequences of making this error?
The input in the box below will not be graded, but may be reviewed and considered by your instructor. What is the Type II error in this situation?
Answer:
When the null hypothesis is rejected
The conclusion is that there is enough evidence to support the claim of the researcher
When a type I error occurs
The consequences is that the conclusion that there is enough evidence to support the claim of the researcher is actually incorrect
When a type II error occurs
The consequences is that the conclusion that there is enough evidence to support the claim of the researcher is actually correct
Step-by-step explanation:
From the question we are told that
The cost of electricity per month is \(\mu = \$104\)
The null hypothesis is \(H_o : \mu = \$104\)
The alternative hypothesis is \(H_o : \mu > \$104\)
Generally if the null hypothesis is rejected then the conclusion would be that there is enough evidence to support the claim of the researcher
Generally a Type I error is a an error that occurs when the null hypothesis is incorrectly rejected
So in the case of this question the consequence of making this type of error is that the conclusion that there is enough evidence to support the claim of the researcher is actually incorrect
Generally a Type II error is an error that occurs when the null hypothesis is incorrectly not rejected
So in the case of this question the consequence of making this type of
error is that the conclusion that there is enough evidence to support the claim of the researcher is actually correct
The price of a train ticket is 155.00 What would it be if you had a 75% discount
Answer:116.25
Step-by-step explanation:
4+2p=10( 5 3 p−2) please help quickly
Answer:
0.045
Step-by-step explanation:
4+2p=10(53p-2)
open the bracket
4+2p=530p-20
collecting like terms we have
4+20=530p-2p
24=528p
24/528=528p/528
p=0.04545
p=0.045
Hope it helps, please rate 5 and love
for more explanation, ask in the comment section
Step-by-step explanation:
p=22.
How i get it?4+2p=10(53p-2)
4+2p=530p-20
4+20=530p-2p
24=528p
p= 22