Answer:
C) An exponential model is suitable because the scatterplot of log(weeks) against log(stock price) shows a curved relationship.
Step-by-step explanation:
Solve the following equation for x to find the total number of sale items stocked on the shelves of a toy store for a certain week: x = 0.7x + 24 How many total items were stocked for that week? 14 56 80 10
Answer:
80
Step-by-step explanation:
The total of 80 items were stocked for that week.
What is a system of equations?
A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
Solve equation for x to find the total number of sale items stocked on the shelves of a toy store for a certain week:
x = 0.7x + 24
We need to find How many total items were stocked for that week
Solving;
x = 0.7x + 24
x - 0.7x = 24
0.3x = 24
x = 80
Therefore, the total of 80 items were stocked for that week.
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Consider the following two algorithms which both are meant to print all multiples of 11 from 1 up to a user input positive integer value - upper. Which statement correctly compares the efficiency of these two algorithms?
Algorithm 1:
for (int i = 1; i <= upper; i++)
{
if (i % 11 == 0)
{
System.out.println(i + " ");
}
}
Algorithm 2:
for (int i = 1; i <= upper / 11; i++)
{
System.out.println(i * 11 + " ");
}
Algorithm 2 is more efficient than Algorithm 1 because it only needs to loop through the numbers up to upper/11 instead of upper. This means that it will take fewer iterations to reach the result, making it more efficient than Algorithm 1.
Algorithm 1 will make upper/11 more checks than Algorithm 2, resulting in a slower runtime. Additionally, Algorithm 2 avoids the need to check the modulus of each number, further reducing the computation time. Algorithm 2 only needs to loop through the multiples of 11, which are always 11 apart from each other, so it can skip over the other numbers between them.
This makes Algorithm 2 much faster than Algorithm 1 because it is only looping through a fraction of the numbers.
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What is anequation of the line that passes through the points (-7, -7) and(-7,4)?
The line passes through (-7,-7) and (-7,4); thus the x-component remains fixed but the y-component is free
the y- component can take any value! thus the equation is
x=-7
Select the correct answer from the drop-down menu.
A new park is adding two new walking paths, as indicated by and , which are measured in meters. The park resembles an isosceles trapezoid.
Figure shows a trapezium ABCD. AC and BD are diagonals. The length of BD is 14x plus 4, and AC is 11x plus 31.
Determine the length of each path.
A.
The length of each path is
130
meters.
B.
The length of each path is
140
meters.
C.
The length of each path is
120
meters.
D.
The length of each path is
150
meters.
A.The length of each path is 130 meters.
Given:
The park resembles an isosceles trapezoid.
Figure shows a trapezium . AC and BD are diagonals. The length of BD is 14x plus 4, and AC is 11x plus 31.
we know that:
Diagonals are equal in isosceles trapezoid.
14x + 4 = 11x + 31
14x - 11x = 31 - 4
3x = 27
divide by 3 on both sides
3x/3 = 27/3
x = 9
Diagonal length = 14x + 4.
= 14*9 + 4
= 126 + 4
= 130 meters.
Therefore The length of each path is 130 meters.
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How do u solve 8t-2 I can’t figure out how to solve it
Answer:
2(4t - 1)
Step-by-step explanation:
8t - 2
The common multiple is 2 because 2 will go into both 8 and 2. Move the multiple of 2 outside, and add ():
2(4t - 1)
For the question of total area of the cuboid is 200cm^.
I understand where we divide 150 by 4.
But why do I need to multiply by 5, when there are 6 faces.
You need to multiply by 5 instead of 6 because each pair of opposite faces on a cuboid has the same area, so by considering one face from each pair, you ensure that you don't count any face twice.
When calculating the total surface area of a cuboid, you need to understand the concept of face pairs.
A cuboid has six faces, but each face has a pair that is identical in size and shape.
Let's break down the reasoning behind multiplying by 5 instead of 6 in the given scenario.
To find the surface area of a cuboid, you can add up the areas of all its faces.
However, each pair of opposite faces has the same area, so you avoid double-counting by only considering one face from each pair. In this case, you have five pairs of faces:
(1) top and bottom, (2) front and back, (3) left and right, (4) left and back, and (5) right and front.
By multiplying the average area of a pair of faces by 5, you account for all the distinct face pairs.
Essentially, you are considering one face from each pair and then summing their areas.
Since all the pairs have the same area, multiplying the average area by 5 gives you the total surface area.
When dividing 150 by 4 (to find the average area of a pair of faces), you are essentially finding the area of a single face.
Then, by multiplying this average area by 5, you ensure that you account for all five pairs of faces, providing the total surface area of the cuboid.
Thus, multiplying by 5 is necessary to correctly calculate the total surface area of the cuboid by accounting for the face pairs while avoiding double-counting.
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Find the missing side
By using trigonometry, the missing sides are
Example 1: x = 16.7
Example 2: x = 3.2
Example 3: x = 23.5
Example 4: x = 9.3
Trigonometry: Determining the values of the missing sidesFrom the question we are to determine the value of the missing sides in the given triangles
We can determine the value of the missing sides by using SOH CAH TOA
Example 1
Angle = 42°
Opposite side = x
Hypotenuse = 25
Thus,
sin (42°) = x / 25
x = 25 × sin (42°)
x = 16.7
Example 2
Angle = 75°
Opposite side = 12
Adjacent side = x
Thus,
tan (75°) = 12 / x
x = 12 / tan (75°)
x = 3.2
Example 3
Angle = 36°
Hypotenuse side = x
Adjacent side = 19
Thus,
cos (36°) = 19 / x
x = 19 / cos (36°)
x = 23.5
Example 4
Angle = 53°
Opposite side = x
Adjacent side = 7
Thus,
tan (53°) = x / 7
x = 7 × tan (53°)
x = 9.3
Hence,
The missing sides are 16.7, 3.2, 23.5 and 9.3
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given a collection of images with 50% dog images and 50% cat images, sample 2 images with replacement. what is the probabilities of (round to two decimal places e.g. 0.12):
The probability of getting both a dog and a cat image is 0.25.
The probability of getting two dog images with replacement is 0.25. This is because when selecting with replacement, each draw is independent of the previous draw. Thus, the probability of getting one dog image is 0.50 and the probability of getting a second dog image is 0.50. Thus, the probability of getting two dog images is 0.50 x 0.50 = 0.25. Similarly, the probability of getting two cat images with replacement is 0.25.
The probability of getting one dog image and one cat image with replacement is 0.50 x 0.50 = 0.25. Thus the probability of getting both a dog and a cat image is 0.25.
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Question: Edwin usually makes 20 cookies with this recipe, but only wants 5 cookies.
How much is 1/2 teaspoon of vanilla to make 5 cookies?
(PLEASE HELP!!)
Answer:
1/8 teaspoon of vanilla is needed to make 5 cookies
Step-by-step explanation:
1) 1/2 teaspoon of vanilla makes 20 cookies
2) you only need 5 cookies which is 1/4 as many cookies as before
3) you must 1/4 your recipe
4) 1/2 divided by 4 = 1/8
What is the area of the parallelogram?
(-6.6)
(-9,-3)*
(-5-3)
(-2,6)
Answer:
36 square units
Step-by-step explanation:
You want the area of the parallelogram with vertex coordinates (-6, 6), (-9, -3), (-5, -3), (-2, 6).
AreaThe area of a parallelogram is the product of the base length and the height perpendicular to that base.
Here, the base is a horizontal line, so its length is the difference of the x-coordinates of the end points:
-5 -(-9) = 4 . . . . base
The height is the difference of y-coordinates between the top edge and the bottom edge:
6 -(-3) = 9 . . . . height
Then the area is ...
A = bh = 4·9 = 36 . . . . square units
3 5/6 - 1 1/5 what is it
Answer:
2 19/30
Step-by-step explanation:
3 5/6 - 1 1/5
We need to get a common denominator for the fractions
The common denominator is 30
5/6 * 5/5 = 25/30
1/5 * 6/6 = 6/30
3 25/30 - 1 6/30 = 2 19/30
Answer:
\(2\frac{19}{30}\)
Step-by-step explanation:
since this is a mixed fraction we can turn it into 2 equations
3-1
And
5/6-1/5
We know 3-1 is equal to 2 so now for the fraction
To subtract them we have to find a common denominator or multiple for the denominator and one is 30
\(\frac{5x5}{6x5}-\frac{1x6}{5x6}\)
\(\frac{25}{30}-\frac{6}{30}\)
Now we just subtract the numators
25-6=19
We put 19 over 30 and then add the 2 next to it So the solutions is
\(2\frac{19}{30}\)
Hopes this helps please mark brainliest
Q7 PLEASE HELP ME !!!!!!!!!!!!!!!!!!!
The outcomes that are contained in the events are
X = 3 and 10 ⇒ P(X) = 1/5Not X =1, 2, 4, 5, 6, 7, 8 ⇒ P(Not X) = 4/51 - P(X) = 4/5 and 1 - P(X) is the same as P(Not X)
The outcomes contained in the eventsFrom the question, we have the following parameters that can be used in our computation:
X = gray colours
Given that
gray colours = 3 and 10
We have
X = 3 and 10
Not X =1, 2, 4, 5, 6, 7, 8
The probability is then calculated as
P(X) = 2/10 = 1/5
For P(Not X), we have
P(Not X) = 1 - 1/5 = 4/5
The equation of P(Not X)In (a), we have
P(Not X) = 1 - 1/5 = 4/5
This means that
P(Not X) = 1 - P(X)
So, the solution is
1 - P(X) = 4/5
The equivalent expressionUsing the above (a) and (b) as a guide, we have the following:
1 - P(X) is the same as P(Not X)
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y=0.5e^-2.5xfind the decay rate
The general exponential model is given in the form:
\(y=ae^{kt}\)where y is the value at time t, a is the initial value, k is the growth/decay rate, and t is the time.
Note that if k is greater than 0, it represents a growth function, while if k is less than 0, the function represents a decay model.
From the question, the function is given to be:
\(y=0.5e^{-2.5x}\)This means that we have the following parameters:
\(\begin{gathered} a=0.5 \\ k=-2.5 \end{gathered}\)Therefore, the decay rate is -2.5.
It cost $5000 to feed
100 guest at a wedding. It
cost $2750 to feed 45
guests. What is the cost
per plate?
Answer:
Okays so for 100 guests we can make the equation $5000 ÷ 100 = $50.00
For 100 guests at the wedding it would cost $50.00 per plate
For 45 guests we can make the equation $2750 ÷ 45 = $61.111111111111, it would be a repeating decimal
For 45 guests at the wedding, it would cost $61.111111111111
I hope that this can help you! ^‿^
A single die is rolled. Find the odds in favor of rolling a number greater than 1.
Answer:
5/6
Step-by-step explanation:
x > 1
x = 2,3,4,5,6
( quantity of 2,3,4,5,6)/(total)
5/6
I GIVE BRAINLILSTE
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
Answer:
A
Step-by-step explanation:
He increased by 10% because of 80% to 90% is 10%
So, the Answer is A
Answer:
12.5%
Step-by-step explanation:
The question is asking for the percent increase of 80%. So how much of 80% was the new percentage (90%) increased by.
First, find the difference 90-80=10
Then find the percent of 80 that the difference is.
10/80=0.125
0.125 in a percent form is 12.5%
So, there was a 12.5% increase.
12. Mr. Ellis bought several rose bushes
for $65 each. He was charged a $15
delivery fee. If r represents the number
of rose bushes, which expression
can be used to find the total cost of
Mr. Ellis' purchase?
A 150 - 65
B 65r + 15
c 15(r + 65)
D 651 - 15
Answer:
B
Step-by-step explanation:
Because every rose bush costs $65 and it's charged with a $15 delivery fee.
The conditional statement below is true. If possible, write the biconditional statement.
If 2x = 18, then x = 9.
The biconditional statement for the given conditional statement would be:
2x = 18 if and only if x = 9.
The given conditional statement "If 2x = 18, then x = 9" can be represented symbolically as p → q, where p represents the statement "2x = 18" and q represents the statement "x = 9".
To form the biconditional statement, we need to determine if the converse of the conditional statement is also true. The converse of the original statement is "If x = 9, then 2x = 18". Let's evaluate the converse statement.
If x = 9, then substituting this value into the equation 2x = 18 gives us 2(9) = 18, which is indeed true. Therefore, the converse of the original statement is true.
Based on this, we can write the biconditional statement:
2x = 18 if and only if x = 9.
The biconditional statement implies that if 2x is equal to 18, then x must be equal to 9, and conversely, if x is equal to 9, then 2x is equal to 18. The biconditional statement asserts the equivalence between the two statements, indicating that they always hold true together.
In summary, the biconditional statement is a concise way of expressing that 2x = 18 if and only if x = 9, capturing the mutual implication between the two statements.
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BRAINLIEST PLEASE ANSWER Use the form, ( the brackets mean absolute value) [x-b] <= c to write a absolute value inequality that has the solution set x<9 or x>=-5.
absolute value inequality |x - 2| <= 7 and (x <= 9 or x >= -5)
how to create an absolute value inequality?To create an absolute value inequality that has the solution set x < 9 or x >= -5, we first need to find the midpoint between -5 and 9, which is:
Midpoint = (-5 + 9) / 2 = 2
now, we need to find the distance between the midpoint and either endpoint.
Distance = |9 - 2| = 7
Now we can use the formula:
|x - b| <= c
where b is the midpoint and c is the distance.
putting the values we found,
|x - 2| <= 7
To get the solution set x < 9 or x >= -5, we can split this inequality into two parts:
x - 2 <= 7 or -(x - 2) <= 7
Simplifying each part, we get:
x <= 9 or x >= -5
Combining the two inequalities we get :
|x - 2| <= 7 and (x <= 9 or x >= -5)
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Find the intercepts and the vertical and horizontal asymptotes
The x and y-intercepts of the rational function are; (-3, 0) and (0, -3/25).
The vertical asymptotes of the function are; x = ± 5.
The horizontal asymptotes of the function is f(x) = 0.
What are the intercepts?For x-intercept; let f (x) = 0;
0 = (x + 3) / (x² - 25)
x + 3 = 0; x = -3 or (-3, 0).
For the y-intercept; let x = 0.
f (0) = (0 + 3) / (0² - 25)
= -3/25 or (0, -3/25).
For the vertical asymptotes;
x² - 25 = 0
x² = 25
x = ±5.
For the horizontal asymptote;
Since the degree of the numerator is less than the degree of the denominator, the horizontal asymptote is; f (x) = 0.
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help me please please please
The angle measures for this problem are given as follows:
a = 62º.b = 118º.c = 62º.d = 62º.How to obtain the angle measures?The sum of the measures of the internal angles of a triangle is of 180º.
The triangle in this problem is ABC, hence the measure of a is obtained as follows:
a + 68 + 50 = 180
a = 180 - (68 + 50)
a = 62º.
c and d are corresponding angles to angle a, as they are on the same position relative to parallel lines, hence their measures are given as follows:
c = 62º.d = 62º.Angle b is a corresponding interior angle with angle a, hence they are supplementary and it's measure is given as follows:
a + b = 180
62 + b = 180
b = 118º.
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60 POINT QUESTION. Middle school math, ordered pairs.
Answer:
(0,2)
(3,0)
Step-by-step explanation:
Plz give the answer for 8th and 9th question
Answer:
8. 8/9 is not the multiplicative inverse of –1⅛
9. 0.3 is the multiplicative inverse of 3⅓
Step-by-step explanation:
To answer the above questions, we must understand the meaning of multiplicative inverse. This is illustrated below:
Let y be the number.
The multiplicative inverse of y denoted by y¯¹ (or 1/y) when multiplied with y will give an identity of 1 i.e
y × y¯¹ = 1
Or
y × 1/y = 1
Now, let us answer the questions given above by calculating the multiplicative inverse.
8. The number (y) = –1⅛ = –9/8
Multiplicative inverse (y¯¹) =?
y × y¯¹ = 1
–9/8 × y¯¹ = 1
Divide both side by –9/8
y¯¹ = 1 ÷ –9/8
y¯¹ = 1 × –8/9
y¯¹ = –8/9
Thus, 8/9 is not the multiplicative inverse of –1⅛
9. The number (y) = 3⅓ = 10/3
Multiplicative inverse (y¯¹) =?
y × y¯¹ = 1
10/3 × y¯¹ = 1
Divide both side by 10/3
y¯¹ = 1 ÷ 10/3
y¯¹ = 1 × 3/10
y¯¹ = 3/10
y¯¹ = 0.3
Thus, 0.3 is the multiplicative inverse of 3⅓.
Every quadratic function has one or more x-intercepts.
True or False
Answer:
False
Explanation:
Quadratic functions can sometimes even have only one or NO x-intercepts.
So the answer is false.
Hope this is correct, have a great day!
what is the direction of vector v if it ends at (-3,-10)
The direction of the vector v in standard position is approximately 253.301°.
What is the direction of a given vector?
Vectors in rectangular form present the change of each of the two variables parallel to orthogonal axes. Each point is described by the following definition:
v = (Δx, Δy) (1)
And the direction of a vector is equal to this inverse trigonometric function:
θ = tan⁻¹ (Δy / Δx) (2)
If we know that Δx = - 3 and Δy = - 10, then the direction of the vector is:
θ = tan⁻¹ (- 10 / - 3)
θ = tan⁻¹ (10 / 3)
θ ≈ 253.301°
The direction of the vector v in standard position is approximately 253.301°.
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In 5×7 = 35 the numbers five and seven are called ? in the number 35 is called the ?
Answer:
5 and 7 are factors
35 is the product
Step-by-step explanation:
5 and 7 are the factors
you multiply factors to get a product
35 is a product of the factors, 5 and 7
If my answer is incorrect, pls correct me!
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-Chetan K
Select the sketch of the right rectangular prism with height of 2cm and bases that are 5 cm by 3 cm.
Answer: See image
Step-by-step explanation:
The bases are 5cm times 3cm, meaning that 2 parallel sides have to be 5cm by 3cm, 2 other parallel sides have to 2cm by 3cm, and the 2 other parallel sides have to be 5cm by 2cm.
What is the cos A?Will give 15 points.
Answer:
Step-by-step explanation:
cos A = \(\frac{\sqrt{8} }{3}\)
Please help fast!! Find the slope of a line parallel to the line whose equation is 3x+18y=−486.
Fully simplify your answer.
Answer: -1/6
Step-by-step explanation:
Put the equation into y = mx + b (slope) form.
3x + 18y = -486
18y = -3x - 486
y = -1/6x - 27
If the line is parallel to this line, the slope must be the same.
5. Ramon bought x shares of Xerox stock for a total of $40,000. Express the price he paid per share algebraically.
The algebraic expression for the price Ramon paid per share of Xerox stock is $40,000/x.
How to determine the price per share algebraicallyTo express the price Ramon paid per share of Xerox stock algebraically, we can use the formula:
Price per share = Total cost / Number of shares
In this case, we know that Ramon bought x shares of Xerox stock for a total of $40,000
So we can substitute these values into the formula:
Price per share = $40,000 / x
Hence, the algebraic expression for the price is $40,000/x.
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The algebraic expression for the price Ramon paid per share of the Xerox stock is $40,000/x.
How to determine the price per share algebraicallywe can use the formula to determine the price paid per share of Xerox stock algebraically:
Price per share = Total cost of shares / Number of shares
Ramon bought x shares of Xerox stock for a total of $40,000
That is, total cost of shares = $40,000
Number of shares = x
Substitute these values into the formula:
Price per share = $40,000 / x
Therefore, the algebraic expression for the price is $40,000/x.
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