Answer:
the bakery sold 400 cupcakes that day. 1% of the total cupcakes sold would be 4, so multiplied by 100 to make it 100% would be 400.
Write a possible recursive rule and then find a7 for { 7,12,17,22,27}
Start from 7, then add 5 each time.
a7 is 7 plus 30, or 37.
how would i graph my question when the x and y intercept is (10,140) when the slope is -14
The given values are inserted in the point-slope form which formed the equation 140 = -14x + 10 and has been graphed.
What is point-slope form?When you know the slope of the line to be investigated and the given point is also the y-intercept, you can utilize the slope-intercept formula, y = mx + b. (0, b).
The y value of the y-intercept point is denoted by the symbol b in the formula.
The general form of a linear equation is y-y1=m(x-x1).
It draws attention to the line's slope and one of the line's points (that is not the y-intercept).
So, in the given situation:
The point-slope form is: y = mx + b
Then y is y and b is the x value and m is the slope.
Now, insert values as follows:
y = mx + b
140 = -14x + 10
Graph the equation as follows:
(Refer to the graph attached below)
Therefore, the given values are inserted in the point-slope form which formed the equation 140 = -14x + 10 and has been graphed.
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You have a mortagege of $275,000
after down payment with an interest
rate of 3% for 30 years.
What does P, r,n, and t are equal to?
Answer:
Our calculator limits your interest deduction to the interest payment that would be paid on a $1,000,000 mortgage. Interest rate: Annual interest rate for this
Step-by-step explanation:
What is the standard deviation and its meaning given this population of customer ages? 45, 76, 30, 22, 51, 40, 63, 66, 41
The standard deviation is 16.54 if the population of customers ages is 45, 76, 30, 22, 51, 40, 63, 66, and 41.
What is the standard deviation?It is defined as the measure of data disbursement, It gives an idea about how much is the data spread out.
\(\rm SD = \sqrt{\dfrac{ \sum (x_i-X)^2}{N}\)
SD is the standard deviation
xi is each value from the data set
X is the mean of the data set
N is the number of observations in the data set.
It is given that:
The data set:
45, 76, 30, 22, 51, 40, 63, 66, 41
From the formula:
∑(x(i) - X)² = 2463.55
N = 9
SD = √(2463.55/9)
SD = 16.54
Thus, the standard deviation is 16.54 if the population of customers ages is 45, 76, 30, 22, 51, 40, 63, 66, and 41.
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7. A football player has made 80 % of the field goals in his career. If he attempts 5 field goals in a game, Select from below how many is he expected to make?
Percentage of field goals a football player is expected to make = 80%
Number of field goals he attempted in a game = 5
Number of field goals he will be expected to make :
= 80% of the number of field goals he had attempted
= 80% of 5
\( = \tt \frac{80}{100} \times 5\)
\( = \tt \frac{80 \times 5}{100} \)
\( = \tt \frac{400}{100} \)
\( \hookrightarrow \color{plum} \tt4 \: field \: \: goals\)
Thus, number of field goals he is supposed to make = 4
▪︎Therefore, the football player is expected to make 4 out of the 5 field goals he attempted.
Point q is the center of dilation. line w y is dilated to created line w prime y prime. the length of q w is 2 and the length of w w prime is 3.5. line wy is dilated to create line w'y' using point q as the center of dilation. what is the scale factor? given that qy' = 4.125, what is qy?
The scale factor of the given parameters will be 1.75 and the length of qy is 2.37.
We have,
Point q as the center of dilation,
And,
Line wy is dilated to created line w'y',
And,
Length of yw' = 3.5,
And,
Length of qw = 2,
Also,
Length of qy' = 4.125,
Now,
First we will find out the length of qy,
i.e.
The lines are similar so in equal ratio,
i.e.,
qw : qy = qw' : qy'
Now,
Putting values,
i.e.
2 : qy = 3.5 : 4.15
on solving we get,
qy = 1.5
So,
The length of qy is 2.37.
Now,
Scale factor : Scale Factor is the ratio of size of new image formed to the size of old image.
i.e.,
Scale factor = \(\frac{Change\ in\ size}{Original\ size}\)
So,
Scale factor = \(\frac{3.5}{2}\) = 1.75
Hence, we can say that the scale factor of the given parameters will be 1.75 and the length of qy is 2.37.
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Answer:
it is 2.75. and 1.5
Step-by-step explanation:
right on edge
a) Write an equation of a line in point slope form given the slope -2/3 and the point (-3,2). b) Write an equation in slope intercept form through the points (3,-3) and (2,0) c) write an equation based on this model. Gas cost $4.00 per gallon. If someone paid a startup fee of 5.00, write an equation in slope intercept form based on this model in y = mx+b
Answer:
\(y-2\text{ = -}\frac{2}{3}(x+3)\)Explanation:
Here, we want to write the equation of a line in point-slope form
Mathematically, we have that as:
\(y-y_1=m(x-x_1)\)where m, which is the slope is -2/3 and (x1,y1) which is the point is (-3,2)
Substituting the values, we have it that:
\(y-2\text{ = -}\frac{2}{3}(x+3)\)Solve for x in terms of y
4x+2y=7
Answer:
x= -(2y+7)/(4)
Step-by-step explanation:
4x+2y=7
4x = -2y+7
x= -(2y+7)/(4)
Answer:
x = \(\frac{7-2y}{4}\)
Step-by-step explanation:
4x + 2y = 7 ( subtract 2y from both sides )
4x = 7 - 2y ( divide both sides by 4 )
x = \(\frac{7-2y}{4}\)
Tarzan travels 117 miles per hour. How long does it take him to travel 13 miles? Your answer should be in hours accurate at least to the nearest tenth.
Answer:
it takes him 0.7
Step-by-step explanation:
Identify the equations of ellipses whose major axis lengths are twice their minor axis lengths.
The equations of ellipses whose major axis lengths are twice their minor axis lengths are
(x - h)²/4b² + (y - k)²/b² = 1 and (x - h)²/b² + (y - k)²/4b² = 1To answer the question, we need to know what an ellipse is.
What is an ellipse?An ellipse is part of a conic section.
The equation of the ellipseThe equation of an ellipse centered at (h,k) with major axis on the x-axis and major axis length, 2a and minor axis length 2b is
(x - h)²/a² + (y - k)²/b = 1
The equation of ellipse with major axis x-axis
The equations of ellipses whose major axis lengths are twice their minor axis lengths with ellipse centered at (h,k) with major axis on the x-axis. Since the major axis is twice the length of the minor axis, a = 2b.
So, (x - h)²/a² + (y - k)²/b² = 1
(x - h)²/(2b)² + (y - k)²/b² = 1
(x - h)²/4b² + (y - k)²/b² = 1
The equation of ellipse with major axis y-axis
The equations of ellipses whose major axis lengths are twice their minor axis lengths with ellipse centered at (h,k) with major axis on the y-axis. Since the major axis is twice the length of the minor axis, a = 2b.
So, (x - h)²/b² + (y - k)²/a² = 1
(x - h)²/b² + (y - k)²/(2b)² = 1
(x - h)²/b² + (y - k)²/4b² = 1
So, the equations of ellipses whose major axis lengths are twice their minor axis lengths are
(x - h)²/4b² + (y - k)²/b² = 1 and (x - h)²/b² + (y - k)²/4b² = 1Learn more about ellipse here:
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What is the length of BC in the right triangle below?
12
16
OA. 4
OB. 28
OC. 20
OD. 400
OE. 96
OF. √96
Answer:
C. 20
Step-by-step explanation:
Use the Pythagorean theorem which is \(a^{2} +b^{2} =c^{2}\).
\(a^{2}\) and \(b^{2}\) are the sides of the triangle squared, AB and AC. \(c^{2}\) is the hypotenuse (the slanted side of the triangle) or BC.
So, \(12^{2} + 16^{2} =400^{2}\). Then you square root 400 to get your answer.
\(\sqrt{400}\) = 20.
20 is your answer.
pyriamid a square base that measures 140 m on each side. the height is 91 m. what is the volume of the pyramid?
The volume of the pyramid is approximately 574,533.33 cubic meters.
To find the volume of a pyramid, you use the formula: V = (1/3) × base area × height, where B is the area of the base and h is the height of the pyramid.
Given that the side length of the square base is 140 m and the height is 91 m.
Since the base of the pyramid is a square with a side length of 140 m, we can find its area by multiplying the side lengths: B = 140m x 140m = 19,600 square meters.
By calculating this expression, you'll find the volume of the pyramid.
Now we can plug in the values for B and h into the formula: V = (1/3)(19,600 square meters)(91 meters) = 574,533.33 cubic meters.
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I need help solving these
Step-by-step explanation:
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Insurance Company is deciding whether to insure the lives of those leading a quest to Moria. Based on past experience, the probability of surviving such a quest is 99.9%. If it charges a premium of 5,852 silver coins and would pay a death benefit of 67,329 silver coins if the insured were to die, what is the expected value of this insurance policy to the insurance company?
Answer:
5779 silver coins
Step-by-step explanation:
The probability of surviving such a quest is 99.9% with premium of 5,852 silver coins.
If the insured were to die, the insurance company would pay a death benefit(incur a loss) of 67,329 silver coins.
The probability that the insured would die = 100%-99.9% =0.1%
Therefore, the expected value of this insurance policy to the insurance company
\(=(5,852 X 99.9\%)+(-67,329 X 0.1\%)\\=(5,852 X 0.999)+(-67,329 X 0.001)\\=5778.82\\\approx 5779$ silver coins\)
The expected value of this insurance policy to the insurance company is 5779 silver coins.
Writé the equation for a parabola with x-intercepts of 1 and -3 and passes through
(-9,28).
Answer:
\(\displaystyle f(x)=\frac{7}{15}(x-1)(x+3)\)
Step-by-step explanation:
Equation of the Parabola
The general form of the equation of the parabola is:
\(f(x)=ax^2+bx+c\)
We can try to find the values of a,b, and c by using the three given points (1,0),(-3,0),(-9,28).
However, we'll use an easier method. There is another form of the parabola in case we know its roots, also called zeros or x-intercepts. If p and q are the roots of f, then f can be expressed as:
\(f(x)=a(x-p)(x-q)\)
We already know the values of p=1 and q=-3, thus replacing them into the equation, we have:
\(f(x)=a(x-1)(x+3)\)
We only need to find the value of a. We do that by using the point (-9,28):
\(28=a(-9-1)(-9+3)\)
Operating:
\(28=a(-10)(-6)=60a\)
Solving for a:
\(\displaystyle a=\frac{28}{60}=\frac{7}{15}\)
Thus, the equation of the parabola is:
\(\boxed{\displaystyle f(x)=\frac{7}{15}(x-1)(x+3)}\)
The sum of three numbers is 23. The third number one more than the sum of the first and second numbers. The first number is ten less than the third number. Find the numbers.
Answer:
2, 9, 12
Step-by-step explanation:
We know that the first number is ten less than the third number and that the third number is one more than the first number and second number combined. Because of this, our third number has to be one away than the combination of the first two numbers. Now, we just have to see the numbers of the first two values and the first number is 10 less than the third number. You can mostly guess the numbers once you understand. I hope that this didn't confuse you more. Hope this helps!
0.008 times what equals 0.8
Answer:
100
Step-by-step explanation:
Answer:
100
Step-by-step explanation:
The question in algebra is :
0.008x = 0.8
What is x?
To solve for x we divide both sides by 0.008
x = 0.8÷0.008
x = 100
Hope this helped and brainliest please
This histogram shows the number of peanuts per bag of trail mix. Choose ALL statements about the data that are true? A) The most common range of peanuts per bag is 30-39. B) There are more bags with 10-19 peanuts than 40-49. C) The least common range of peanuts per bag is 10-19. D) The ranges with the same number of bags are 10-19 and 40-49. E) The ranges with the same number of bags are 20-29 and 50-59.
Answer:
A), C), E)
Step-by-step explanation:
Consider the polynomials p1(t) = 1 + t , p2(t) = 1 -t , and p3(t) = 2 (for all t). By inspection, write a linear dependence relation among p1, p2, and p3. Then find a basis for Span{ p1 , p2 , p3 }.
I've already concluded that the polynomials are linearly dependent since 1p1 + 1p2 + (-2)p3 = 0. It's the second part that I'd like help with.
The basis for Span{ p1, p2, p3 } is { p1, p2 } or equivalently { 1+t, 1-t }.
To find a basis for Span{ p1, p2, p3 }, we need to eliminate any redundant vectors. In this case, since we already know that p1, p2, and p3 are linearly dependent, we can remove one of them from the set and still have the same span.One option is to remove p3, since it is a constant polynomial and doesn't add any new information. So we are left with Span{ p1, p2 }.Learn more about polynomials: https://brainly.com/question/31132909
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suppose iq scores are normally distributed with μ = 100 and σ = 15. what percent of iq scores are between 85 and 130?
If IQ scores are normally distributed with a mean of 100 and a standard deviation of 15, we can use the normal distribution properties to find the percentage of IQ scores between 85 and 130.
Specifically, we can standardize the scores and use a normal distribution table or calculator to find the area under the curve between the z-scores corresponding to 85 and 130.To find the percentage of IQ scores between 85 and 130, we first need to standardize the scores by subtracting the mean and dividing by the standard deviation. This gives:
z1 = (85 - 100) / 15 = -1.00
z2 = (130 - 100) / 15 = 2.00
We can then use a normal distribution table or calculator to find the area under the curve between these two z-scores. For example, using a standard normal distribution table, we can find that the area to the left of z = -1.00 is 0.1587 and the area to the left of z = 2.00 is 0.9772. Therefore, the area between these two z-scores is:
0.9772 - 0.1587 = 0.8185
This means that approximately 81.85% of IQ scores are between 85 and 130. Alternatively, we can use a normal distribution calculator to find the same result. For example, using an online calculator, we can input the mean (100), standard deviation (15), and the lower and upper limits (85 and 130) and obtain a probability of 0.8185, or 81.85%.
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A neon light flashes five times every 10 seconds. Show that the light flashes 43 200 times in one day.
1 day = 24 hours
1 hour = 60 minutes
1 minute = 60 seconds
60 seconds x 60 minutes = 3,600 seconds per hour
3,600 seconds per hour x 24 hours = 86,400 seconds per day.
The light flashes 5 times every 10 seconds:
5 flashes / 10 seconds = 1 flash every 2 seconds
86,400 seconds / 2 seconds = 43,200 flashes per day.
Samantha drives 95 miles each day. How many miles does she drive in 40 days?
Answer:
Samantha drives 3,800 miles in 40 days.
Step-by-step explanation:
1 day = 95 miles so 40 days = 3,800
95 miles x 40 days = 3,800 miles
.25x + 0.05y = 9, x + y = 25
Answer:
x = -4
y = 29
Step-by-step explanation:
Let's take our two equations and turn the decimals into fractions for simplicity's sake. We get:
x/4 + 5y/100 = 9 x + y = 25
Simplifying a bit gives us:
x/4 + y/20 = 9 x + y = 25
Now, we will take the first equation and multiply it by 20 to get rid of the fractions. We get:
5x + y = 9
We will rearrange numbers to give us an answer to y that we can substitute in. we get:
y = 9 - 5x
Then, we will plug this into our second equation giving us:
x + 9 - 5x = 25
Combining like terms and subtracting 9 from both sides gives us:
-4x = 16
Dividing by -4 gives us:
x = -4
Then, we can substitute this into our second equation giving us:
-4 + y = 25
We will add 4 to both sides giving us:
y = 29
Hope this helped!
Very Urgent Urgent Urgent
Answer:
Step-by-step explanation:
a False
b True
c True
d Falce
e True
f True
g False
h True
i True
j False
k True
l True
If x and y vary inversely and x = 2.5 when y =100, find x when y = 25.
What term should be added to create a perfect square trinomial? x^2+16x
Answer:
Given the expression x2 + 16x.
If the quadratic equation is of the form ax2 + bx + c then to complete square
Step1: Take coefficient of x2 common from ax2 + bx + c,
⇒ a[x2 + (b/a)x + (c/a)]
Step2: Add and subtract (1/2 coefficient x)2 to quadratic term then,
⇒ a [(x + 1/2 coefficient x)2) + (c/a) - (1/2 coefficient x)2
⇒ a [(x + b/2a)2 + c/a - (b/2a)2]
Note that if the coefficient of x2 is 1 then we have to add (1/2 coefficient x)2 to convert it into perfect square expression.
Thus, in the given problem x2 + 16x.
1/2 coefficient of x = (1/2) × 16 = 8
We have to add 82 = 64, to convert it into a perfect square.
Therefore, 64 must be added to the expression to make it a perfect-square trinomial.
relative maxima and relative minima of the function f(x) = x^5 - 4x^3 + 3x^2 - 8x - 6
The relative maxima and relative minima of the function
f(x) = x^5 - 4x^3 + 3x^2 - 8x - 6
the relative maxima is -1.871the relative minima is 1.518How to fine the relative maxima and minimaThe relative minima and maxima is calculated
by differentiating the given function find the critical values or roots of the equationdifferentiate the second tiesubstitute the critical value that are real numbersthe critical value that gave a negative value is the maximathe critical value that gave a positive value is minimaThe procedure is done as follows
x^5 - 4x^3 + 3x^2 - 8x - 6
differentiating gives
5x^4 - 12x^2 + 6x - 8
solving the equation for the critical values are
x₁ = 0.176 + 0.73i
x₂ = 0.176 - 0.73i
x₃ = 1.518
x₄ = -1.871
The second derivative
5x^4 - 12x^2 + 6x - 8
differentiating gives
20x^3 - 24x + 6
substituting x = 1.58
20 * 1.58^3 - 24 * 1.58 + 6
= 46.966 (positive hence minima)
substituting x = -1.871
20 * -1.871^3 - 24 * -1.871 + 6
= -169.9 (negative hence maxima)
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in order to get a job at a convenience store, you had to take a lie-detector test. you were asked a series of questions and you answered truthfully that you had never stolen from your employer or lied during an interview. unfortunately, you were not hired, because measurements recorded during these questions indicated that you were lying. what is the most likely explanation for this?
it is important to keep in mind that the results of a polygraph test should not be taken as absolute proof of deception or truthfulness, and that other factors should also be considered in evaluating a job applicant
While lie-detector tests (also known as polygraph tests) are sometimes used as part of a job application process, their reliability and accuracy are controversial and have been questioned by many experts in the field. The test measures physiological responses such as heart rate, blood pressure, and sweat gland activity in response to questions, and the results are interpreted by a trained examiner to determine whether the person is being truthful or deceptive.
However, there are several factors that can affect the results of a polygraph test, including the person's physiological state (such as anxiety or stress), the wording and interpretation of the questions, and the skills and biases of the examiner. False positives (indicating deception when the person is actually telling the truth) and false negatives (indicating truthfulness when the person is actually lying) are also possible.
In your case, it is possible that the lie-detector test gave a false positive result, indicating deception when you were actually telling the truth. There could be various reasons for this, such as anxiety or stress during the test, a misunderstanding or misinterpretation of the questions, or an error in the administration or interpretation of the test.
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(a^2b^4)(ab^-2) into positive
Therefore , the solution of the given problem of expressions comes out to be (a²b⁴)(ab⁻²) = a³b² with positive exponents.
What is an expression?It is preferable to use shifting integer numbers that can be increasing, reducing, or blocking rather than approximations generated at random. They were only able to assist one another by exchanging resources, knowledge, or answers to problems. A declaration of truth equation may include the justifications, components, and mathematical comments for strategies like extra disapproval, manufacture, and mixture.
Here,
The following exponent properties can be used to condense the equation (a 2 b 4) (ab -2) and express it using only positive exponents:
(a²b⁴)(ab⁻²) = a²⁺¹ b⁴⁻² = a³b²
a³b² is the simplified form of the equation (a²b⁴)(ab⁻²) with positive exponents.
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how do you multiply a square root by a square root and a whole number?
for example, the square root of 5 times (4 times the square root of 5) is 20, but i don’t understand how rob solve for this thanks!
To multiply a square root by a square root and a whole number, you can use the distributive property of multiplication
Given data ,
Let the numbers be represented by the expression A
Now , the value of A is
A = √2 × 3√5
First, you can simplify each square root:
√2 = 1.4142 (rounded to 4 decimal places)
3√5 = 5.1962 (rounded to 4 decimal places)
Next, you can multiply the two simplified square roots and the whole number:
√2 × 3√5 = 1.4142 × 5.1962 × 3
= 22.3607 × 3
= 67.0821
Hence , the expression is A = √2 × 3√5 = 67.0821
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