Let x be the smallest of the three integers. Then the next two are x + 2 and x + 4.
• "The ratio of the smallest number to 1 less than twice the smallest number..."
This translates to
x / (2x - 1)
• "... the ratio of 3 more than the middle number to twice the largest number."
This translates to
((x + 2) + 3) / (2 (x + 4))
or, simplifying a bit,
(x + 5) / (2x + 8)
The ratioes are said to be equivalent, so
x / (2x - 1) = (x + 5) / (2x + 8)
Solve for x :
x (2x + 8) = (x + 5) (2x - 1)
2x² + 8x = 2x² + 9x - 5
8x = 9x - 5
-x = -5
x = 5
So the three integers are 5, 7, and 9.
Find the center and radius for each circle
The value of center and radius for circle is,
Radius = 9
Center = (5, 7)
We have to given that;
The equation of circle is,
⇒ (x - 5)² + (y - 7)² = 81
Now, We know that;
Standard form of circle with radius 'r' and center (h, k) is,
⇒ (x - h)² + (y - k)² = r²
Hence, After comparing we get;
Radius of circle = √ 81
= 9
And, Center of circle = (5, 7)
Thus, The value of center and radius for circle is,
Radius = 9
Center = (5, 7)
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I need help pleaseeeees
A professor in one city earns $61,000 a year. A bioengineer earns $95,750. A nurse earns $50,600. What is the difference in salary between the professor and nurse?
Answer:
The difference is 10,400$.
Step-by-step explanation:
$61,000-$50,600=$10,400
Calculate the volume of this regular solid.
A sphere with radius of 8 centimeters.
What is the volume of the sphere?
Use the button on your calculator to complete this problem.
Round at the end to the nearest tenth.
Answer:
2144.7cm³
Step-by-step explanation:
volume = \(\frac{4}{3}\) pi 8³
can some one help me im in a middle of an very important prodigy battle and i really need help
Answer:
1. ella
2. ella
Step-by-step explanation:
Answer:
toga
Step-by-step explanation:
plz help me i really need it and sorry if the picture is blurry!?!?
Answer:
would'nt the change be the amount of how deep the full one is?
what is the equation of the line in slope-intercept form?
pls help i cant get this wrong
Answer:
y=mx+b
Step-by-step explanation:
A large bucket holds 5 gallons of water which is about the same as 19 liters of water a small bucket holds 1 gallon of water about how many liters does it hold ?
Answer:
Step-by-step explanation:
2 gallons of water will hold about 7.6 liters of water
f(x)=(0.13x⁴+0.22x³)-0.88x²-0.25x-0.09for this polynomial use a graph to state the number of turning points
The graph of the function is:
From this, we can conclude that the polynomial has three turning points
Find the perimeter of this L shape.
Answer: undefined, not enough information
Step-by-step explanation:
Answer:
15+19 =34 is the perimeter of the closed figure
hope it helped you
stanley is putting wallpaper strips on his bathroom
Answer:
K? Am I Supposed To Care?
Step-by-step explanation:
Translate this phrase into an algebraic expression.
72 decreased by twice a number
Use the variable n to represent the unknown number.
Hey there!
The answer is 72 - 2n.
"twice a number" represents a number multiplied by 2. So we have "2n"
"decreased by twice a number" would mean subtracting twice a number, or subtracting "2n".
"72 decreased by" means that we are subtracting the number FROM 72, so we get "72 - 2n".
Have a super awesome day! :)
The figure shows four box-and-whisker plots. These represent variation in travel time for four different types of transportation from the beginning to the end of one route.
Conrad is at one end of the route. He is trying to decide how to get to an appointment at the other end. His appointment is in 30 minutes. Which type of transportation is LEAST likely to take more than 30 minutes?
Select one:
a.
bus
b.
car
c.
subway
d.
train
Comparing the median of each box-and-whisker plot, the type of transportation that is LEAST likely to take more than 30 minutes is: d. train.
How to Interpret a Box-and-whisker Plot?
In order to determine the transportation that is LEAST likely to take more than 30 minutes, we have to compare the median of each data set represented on the box-and-whisker plot for each transportation.
The box-and-whisker plot that has the lowest median would definitely represent the the transportation that is LEAST likely to take more than 30 minutes, since median represents the typical minutes or center of the data.
Therefore, from the box-and-whisker plots given, the one for train has the lowest median. Therefore train would LEAST likely take more than 30 minutes.
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The area of Square A is 121 square inches. The length of each side of Square B is 2 inches longer than the length of each side of Square A. How much greater is the area of Square B than the area of Square A? Show your work.
The area of the square B is a 169 and increase in the area w.r.t to the square A is 48.
According to the statement,We have to find that the Area of the square B.
So, For this purpose, we know that the
The Area is defined because the total space concerned by a flat (2-D) surface or shape of an object.
From the given information:
The area of Square A is 121 square inches. The length of every side of Square B is 2 inches longer than the length of every side of Square A.
Then
We know that the realm of the square is a^2
Then
Given area of the square = 121.
Area = \(A^2\)
121 = \(A^2\)
\(A = \sqrt{121}\)
A = 11.
The side of the square a is 11.
And The side of the square B = 11+2
The side of the square B = 13
The Area of the square B = Side * Side
Area of the square B = 13* 13
Area of the square B = 169.
Now, Increase in the area = 169 -121
Increase in the area = 48.
So, The area of the square B is a 169 and increase in the area w.r.t to the square A is 48.
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Sunspots have been observed for many centuries. Records of sunspots from ancient Persian and Chinese astronomers go back thousands of years. Some archaeologists think sunspot activity may somehow be related to prolonged periods of drought in the southwestern United States. Let x be a random variable representing the average number of sunspots observed in a 4-week period. In a random sample of 40 such periods from Spanish colonial times, the sample mean is x¯ = 47.0. Previous studies of sunspot activity during this period indicate that σ = 35. It is thought that for thousands of years, the mean number of sunspots per 4-week period was about µ = 41. Sunspot activity above this level may (or may not) be linked to gradual climate change. Do the data indicate that the mean sunspot activity during the Spanish colonial period was higher than 41? Use α = 0.05. (a) State the appropriate null and alternate hypothesis. (b) Compute the value of test statistic. (c) Using P-value method, state a conclusion.
Answer:
(a) Null Hypothesis, \(H_0\) : \(\mu\) \(\leq\) 41
Alternate Hypothesis, \(H_A\) : \(\mu\) > 41
(b) The value of z test statistics is 1.08.
(c) We conclude that the mean sunspot activity during the Spanish colonial period was lesser than or equal to 41.
Step-by-step explanation:
We are given that in a random sample of 40 such periods from Spanish colonial times, the sample mean is x¯ = 47.0. Previous studies of sunspot activity during this period indicate that σ = 35.
It is thought that for thousands of years, the mean number of sunspots per 4-week period was about µ = 41.
Let \(\mu\) = mean sunspot activity during the Spanish colonial period.
(a) Null Hypothesis, \(H_0\) : \(\mu\) \(\leq\) 41 {means that the mean sunspot activity during the Spanish colonial period was lesser than or equal to 41}
Alternate Hypothesis, \(H_A\) : \(\mu\) > 41 {means that the mean sunspot activity during the Spanish colonial period was higher than 41}
The test statistics that would be used here One-sample z test statistics as we know about the population standard deviation;
T.S. = \(\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }\) ~ N(0,1)
where, \(\bar X\) = sample mean = 47
σ = population standard deviation = 35
n = sample of periods from Spanish colonial times = 40
So, the test statistics = \(\frac{47-41}{\frac{35}{\sqrt{40} } }\)
= 1.08
(b) The value of z test statistics is 1.08.
(c) Now, the P-value of the test statistics is given by;
P-value = P(Z > 1.08) = 1 - P(Z < 1.08)
= 1 - 0.8599 = 0.1401
Since, the P-value of the test statistics is higher than the level of significance as 0.1401 > 0.05, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which we fail to reject our null hypothesis.
Therefore, we conclude that the mean sunspot activity during the Spanish colonial period was lesser than or equal to 41.
50 points help show your work and I’m giving brainliest
The values of the expressions in the table following their evaluation are;
1. 73
2. 97
3. x = 108
4. -13/6
5. 1 and 97
6. 1 and 41
7. The graph of the number line
8. She needs to add 5/36 cup of sugar
The length of the actual is 6 miles
How can the expressions be evaluated?1. The given expression is 5•x + 14 - 6
The value of x at which the expression is evaluated is x = 13
Which gives;
5×13 + 14 - 6 = 73
2. Twelve times six plus 25 can be expressed as 12 × 6 + 25
12 × 6 + 25 = 97
3. x/9 = 12
Multiplying across gives;
x × 1 = 9 × 12 = 108
x = 108
4. The expression is 3/16 - 3/8
= (3 - 2× 3)/16
3/16 - 3/8 = (3 - 2× 3)/16 = -3/16
(3 - 2× 3)/16 = -3/16
5. The prime factors of 97 are; 1 and 97
6. 41 is a prime number.
The factors of 41 are; 1 and 41
7. The graph of x = -1/3
8. Quantity of sugar required = 3¼
Quantity added = 3⅑
Quantity needed = 3¼ - 3⅑ = 5/36
9. 4 inches is equivalent to 2 miles
Therefore;
12 inches = 3 × 4 inches is equivalent to 3 × 2 mi = 6 mi
The length of the actual trail is 6 miles
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3. [-/2 Points]
Find the limit of the function (if it exists). (If an answer does not exist, enter DNE.)
4x² + 5x-6
x+2
DETAILS
20
lim
X--2
Write a simpler function that agrees with the given function at all but one point. Use a graphing utility to confirm your result.
g(x)
LARCALC12 1.3.044.
Need Help? Read It
The limit of the function as x approaches -2 is 20.To find the limit of the function (if it exists), we can substitute the given value into the function and simplify. Given function: f(x) = 4x² + 5x - 6x + 2
To find the limit as x approaches -2, we substitute -2 into the function:
f(-2) = 4(-2)² + 5(-2) - 6(-2) + 2
= 4(4) - 10 + 12 + 2
= 16 - 10 + 12 + 2
= 20
Therefore, the limit of the function as x approaches -2 is 20.
To write a simpler function that agrees with the given function at all but one point, we can use a graphing utility. By plotting the given function and observing its behavior, we can create a simpler function that matches the original function except at one point.
However, without further information about the specific behavior of the given function, it is not possible to provide a more detailed explanation or a graph of the simpler function.
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Can someone please help I’m very confused and it’s due tomorrow.
Instructions: Preform the operations to climb the pyramid! MULTIPLY to move up the pyramid and Divide to move down the pyramid.
Answer:
hope this helps. have a good day!
Y (4)
+4y ′′
+4y=0 A general solution with x as the independent variable is y(x)=
Answer:
Step-by-step explanation:
We can use the method of undetermined coefficients to solve this differential equation. First, we will need to find the solution to the homogeneous equation and the particular solution to the non-homogeneous equation.
For the homogeneous equation, we will use the form y"+ky=0, where k is a constant. We can find the solutions to this equation by letting y=e^mx,
y"=m^2e^mx -> (m^2)e^mx+k*e^mx=0, therefore (m^2+k)e^mx=0
(m^2+k) should equal 0 for the equation to have a non-trivial solution. Therefore, m=±i√(k), and the general solution to the homogenous equation is y=A*e^i√(k)x+Be^-i√(k)*x.
Now, we need to find the particular solution to the non-homogeneous equation. We can use the method of undetermined coefficients to find the particular solution. We will let yp=a0+a1x+a2x^2+.... As the derivative of a sum of functions is the sum of the derivatives, we get
yp″=a1+2a2x....yp‴=2a2+3a3x+....
Substituting the general solution into the non-homogeneous equation, we get
a0+a1x+a2x^2+...+2a2x+3a3x^2+...=Y(4)
So, the coefficient of each term in the expansion of the left hand side should equal the coefficient of each term in the expansion of the right hand side. Since there is only one term on the right hand side, we get the recurrence relation:
a(n+1)=Y(n-2)/n^2
From this relation, we can find all the coefficients in the expansion for the particular solution. Using this particular solution, we can find the total solution to the differential equation as the sum of the homogeneous solution and the particular solution.
Which equation represents the nth term of the sequence {2,1,-4,-7...}.
a n =2n-5
a n=3n-1
a n=-3n-10
a n=-3n+5
Answer:
n=-3n+5
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
I can only answer this if the second term is -1
a = 2
d = -3
t_n = a + (n - 1)*-3
t_n = 2 + -3n + 3
t_n = 5 - 3n or
t_n = - 3n + 5
That's D
Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.61 and a standard deviation of 0.4. Using the empirical rule, what percentage of the students have grade point averages that are between 2.21 and 3.01?
Answer:
68%
Step-by-step explanation:
We start by calculating the z-scores of both
z-score = (x-mean)/SD
for 2.21
z-score = (2.21-2.61)/0.4 = -1
For 3.01
z-score = (3.01-2.61)/0.4 = 0.4/0.4 = 1
So what we want to find is the percentage between -1 SD and 1 SD of the mean
This is the percentage corresponding to the probability
P(-1 < x < 1)
According to the empirical rule, this is a value of;
68.269%
9 pt = How much fl oz
Answer:
9 pints would equal 144 ounces
Step-by-step explanation:
Pints
The US liquid pint is a unit of fluid volume equal to one-eighth of a gallon, one-half of a quart, or two cups. The liquid pint should not be confused with the dry pint (US) or the imperial pint, which are different units.
The pint is a US customary unit of volume. Pints can be abbreviated as pt; for example, 1 pint can be written as 1 pt.
Fluid Ounces
The US fluid ounce is a unit of volume equal to 1/16 of a pint or 1/8 of a cup. The fluid ounce is sometimes referred to as an "ounce" but should not be confused with the unit of mass. One fluid ounce is equal to just under 29.6 milliliters, but in nutrition labeling, one fluid ounce is rounded to exactly 30 milliliters.[1]
The fluid ounce is a US customary unit of volume. Fluid ounces can be abbreviated as fl oz, and are also sometimes abbreviated as fl. oz. or oz. fl.. For example, 1 fluid ounce can be written as 1 fl oz, 1 fl. oz., or 1 oz. fl..
Pint to Fluid Ounce Conversion Table
Pint measurements converted to fluid ounces
Pints Fluid Ounces
1 pt 16 fl oz
2 pt 32 fl oz
3 pt 48 fl oz
4 pt 64 fl oz
5 pt 80 fl oz
6 pt 96 fl oz
7 pt 112 fl oz
8 pt 128 fl oz
9 pt 144 fl oz
10 pt 160 fl oz
11 pt 176 fl oz
12 pt 192 fl oz
13 pt 208 fl oz
14 pt 224 fl oz
15 pt 240 fl oz
16 pt 256 fl oz
17 pt 272 fl oz
18 pt 288 fl oz
19 pt 304 fl oz
20 pt 320 fl oz
21 pt 336 fl oz
22 pt 352 fl oz
23 pt 368 fl oz
24 pt 384 fl oz
25 pt 400 fl oz
26 pt 416 fl oz
27 pt 432 fl oz
28 pt 448 fl oz
29 pt 464 fl oz
30 pt 480 fl oz
31 pt 496 fl oz
32 pt 512 fl oz
33 pt 528 fl oz
34 pt 544 fl oz
35 pt 560 fl oz
36 pt 576 fl oz
37 pt 592 fl oz
38 pt 608 fl oz
39 pt 624 fl oz
40 pt 640 fl oz
Please don't report this. :(
A = $ 17,000 e^0.03(4)
What is A to the nearest cent?
Answer:
A = $19.167.45
Step-by-step explanation:
The continuous compound interest formula, \(A = Pe^ { (rt)}\) is used when interest is compounded continuously; that is, when the number of compounding periods per year increases without bound.
Using the continuous compound interest formula, \(A = Pe^ { (rt)}\) where:
A = amount in the end of t period
P = principal = $17,000
r = interest rate = 0.03 or 3%
t = time = 4
Substitute these values into the formula:
\(A = Pe^ { (rt)}\)
\(A = 17000e^ { (0.03)(4)}\)
A = $19.167.45
can someone help me i will give brainlest
Answer:
A.
(i) 9.3 ft
(ii) 16.5 ft
(iii) 153.45 ft^2
B.
(i) 25.5 ft
(ii) 42 ft
(iii) 1070 ft^2
What is the surface area of the image below I’ll give b brainliest
Answer:
50(5π + 6) cm²
Step-by-step explanation:
TSA of figure = 1/2 of TSA(Cylinder) + Area of rectangle
= 1/2 of 2πr(h+r) + 20*15
= πr(h+r) + 300
= 10π(15+10) + 300
= 250π + 300 cm²
or 50(5π + 6) cm²
What equation describes the graph?
Answer:
C. y = 3x -2
Step-by-step explanation:
y = mx + b
start with b, the y-intercept, which is -2.
Next find m, the slope. From -2 on the y-axis you are going to find the slope by doing rise/run. You will rise 3 units and run 1 unit to get to the next point on the line.
The equation is y = 3x -2
A population of values has a normal distribution with μ= 106.9 and σ=14.5
You intend to draw a random sample of size n=20
What is the probability that a single randomly selected value is less than 109.8?
P(X < 109.8)
How do you the probability that a sample of size n= 20 is randomly selected with a mean less than 109.8?
P(M < 109.8)
Also, I have to round the answer to the 4th decimal place. How do I do that?
Step-by-step explanation:
Find the z-score.
z = (x − μ) / σ
z = (109.8 − 106.9) / 14.5
z = 0.2
Use a chart or calculator to find the probability.
P(Z < 0.2) = 0.5793
Find the mean and standard deviation of the sampling distribution.
μ = 106.9
σ = 14.5 / √20 = 3.242
Find the z-score.
z = (x − μ) / σ
z = (109.8 − 106.9) / 3.242
z = 0.894
Use a calculator to find the probability.
P(Z < 0.894) = 0.8145
The cost of a jacket increased from $75.00 to $84.75. What is the percentage increase of the cost of the jacket?
A.
1.3%
B.
87%
C.
13%
D.
9.75%
Answer:
c) 13%
Step-by-step explanation:
Given information,
→ The cost of a jacket increased from the price $75.00 to $84.75.
Now we have to,
→ find the % increase of cost of jacket.
Let's solve the problem,
→ ((84.75 - 75)/75) × 100
→ (9.75/75) × 100
→ 0.13 × 100
→ 13%
Hence, the answer is 13%.
Please help the one selected is wrong
Answer:
bt? I don't know for sure
At the end of each day of a bowling competition, half of the bowlers are eliminated until a winner is determined. There are 320 bowlers on day 1 of the competition. Which equation represents the number of bowlers, y, on the day x of the competition
Answer:
Step-by-step explanation:
Y= 320(1.5)^x-1
In this exercise we have to use the data informed in the text and perform the assembly of an equation in this way we find that:
\(Y=320(0.5)^X-1\)
Some data were informed in the text for this equation to be written, so:
Y: the number of bowlersX: on the day320 bowlersNow writing the equation representing the given information is:
\(Y=320(0.5)^X-1\)
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