Answer:
4 Over 5 (4/5)
Step-by-step explanation:
we have
\(y=\frac{4}{5}x-3\)
This is the equation of a line in slope intercept form
\(y=mx+b\)
where
m is the slope
b is the y-intercept
In this problem we have
\(m=\frac{4}{5}\)
\(b=-3\)
therefore
The slope is \(\frac{4}{5}\)
The slope of the given line is equivalent to 4/5.
Determining the slope of a lineThe equation of a line in slope intercept form is expressed as y = mx + b
where:
m is the slope
b is the y-intercept
Given the equation of a line y = 4/5x. - 3, we are to determine its slope
In this case, the coefficient of x is (4/5), which represents the slope of the line.
m = 4/5
Therefore, the slope of the line is 4/5.
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You and a friend delivered 400 newpapers together. If your friend delivired 60% of the newspapers how many newspapers did you deliver
Answer:
160 newspapers (400 × .4 = 160)
A lighthouse is due east of a sailboat. The sailboat's dock is 30 km straight north of the lighthouse. The captain measures his viewing angle between the lighthouse and dock and find it to be 35 degrees. How far is the sailboat from the dock?
The distance between the sailboat and the dock is approximately 21.006 km
What is the distance between the sailboat and the dock?
To find the distance between the sailboat and the dock, we can use trigonometry.
Given:
Distance between the lighthouse and dock (north-south direction) = 30 km
Viewing angle between the lighthouse and dock = 35 degrees
We can consider the right triangle formed by the sailboat, the lighthouse, and the dock.
The distance between the sailboat and the dock is the adjacent side of the triangle, while the distance between the lighthouse and the dock is the opposite side.
Using the trigonometric function tangent (tan), we have:
tan(angle) = opposite / adjacent
tan(35 degrees) = opposite / 30 km
Solving for the opposite side (distance between sailboat and dock):
opposite = tan(35 degrees) * 30 km
opposite ≈ 0.7002 * 30 km
opposite ≈ 21.006 km
Therefore, the sailboat is approximately 21.006 km away from the dock.
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Y=x-10 Y=-4x-5
Solve using substitution
Answer:
x = 1
Step-by-step explanation:
Both equations can be set equal to each other since they are both equal to y:
\(x-10=-4x-5\\5x-10=-5\\5x=5\\x=1\)
equate both equations !
x - 10 = -4x - 5
5x - 10 = -5
5x = 5
x = 1
therefore x = 1
Add the Fractions: Simplify if possible
10 1/3 + 1 2/3 =
Answer:
I believe the answer is 12
Answer:
the correct answer would be 12
Step-by-step explanation:
10 1/3 + 1 2/3
31/3 + 1 2/3
31/3 + 5/3
=12
Hope this helps, happy holidays!!
What is the solution to the equation below?
4w=2/3
A
6/3
B
8/3
C 2/12
D 4 2/3
THESE ARE FRACTIONS
Answer:
I think it is 2/12
The perimeter of the triangle below is 4x+3y Find the measure of the missing side.
the right side says x-y
the right side says x + y
Answer:
2x+3y
Step-by-step explanation:
you add up the known sides: (x-y)+(x+y) = 2x
Then you subtract the answer from the perimiter: 4x+3y-2x=2x+3y
Athlete endorsers are often viewed as role models and expected to portray positive character traits while maintaining high moral standards, though in recent years, some athletes have rebelled against this notion. However, in some cases, teams, organizations, and brands will be willing to overlook moral or ethical blunders and character issues if a player is popular with the target audience. What is your opinion about the moral, ethical, and character standards in place for athlete endorsers? Drawing on the tenets of a Christian worldview (CWV) perspective, what would you do if you were asked to sign an athlete endorser with questionable character or moral and ethical values that were in conflict with your own?
In such a situation, I would choose not to endorse the athlete.
From a Christian worldview perspective, moral, ethical, and character standards hold significant importance. Athlete endorsers, as role models, should strive to uphold positive character traits and high moral standards. However, it is evident that in recent years, some athletes have challenged this notion.
When faced with the decision to sign an athlete endorser with questionable character or conflicting moral and ethical values, it is crucial to prioritize one's own values and beliefs. As a Christian, I would consider the impact of endorsing such an athlete on my personal integrity, as well as the message it sends to others.
It is essential to remain true to one's own moral compass and avoid promoting behavior that goes against Christian values. By doing so, I would be staying consistent with my beliefs and upholding the standards I hold dear.
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A rock sample containing an isotope with a half-life of 28 million years has an initial mass of 184 grams. how much time has elapsed after three half-lives?
The half life period is the time in which only half of the given population remains. It can be represented through this equation:
\(f(t)=a\times(1/2)^{\frac{t}{h}}\)
t = time passeda = y-intercepth = half lifeSolving the QuestionWe're given:
h = 28 million yearsa = 184 grams (this is the initial mass, after 0 time has passed)For most questions like this, we would have to plug these values into the equation mentioned above. However, this question asks for the time elapsed after 3 half-lives.
This can be calculated simply by multiplying the given half-life by 3:
28 million years x 3
= 84 million years
Answer84 million years
-1/2=y-1
I don’t understand this
Eli is following this recipe to bake bread rolls. He uses 500 ml of water. How much of the other ingredients does he use? Recipe: Makes 12 bread rolls 560 g flour 12 g salt 8 g yeast 40 ml oil 400 ml water
First we have to find the increase in water
400 is 80% of 500 meaning there was an increase of 20%
Now we just have to find and add 20% of all the other ingredients.
560g flour --> 672g
12g salt --> 14g (rounded) Exact: 14.4g
8g yeast --> 10g (rounded) Exact 9.6g
40ml oil --> 48g
He would make about 14 bread rolls
If Eli is baking bread with 500mL water, then he would be using 700g of flour, 15g of salt, 10g of yeast, and 50 mL of water to make 15 bread rolls.
Using simple cross multiplication,
If 400mL→12 bread rolls, then,
⇒ 500mL would yield,
(500*12)÷400 = 15
Thus, 15 bread rolls are being made.
The same follows for the ingredients:
If 400mL→560g flour, then,
⇒ 500mL would yield,
(500*560)÷400 = 700
Thus, 700g of flour is needed.
The other ingredients are calculated similarly.
Thus, Eli would be using 700g of flour, 15g of salt, 10g of yeast, and 50 mL of water to make 15 bread rolls.
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write an inequality relating −2e−nn2 to 121n2 for ≥ n≥1. (express numbers in exact form. use symbolic notation and fractions where needed.)
The inequality relating −2\(e^{(-n/n^2)}\) to 121/\(n^2\) for n ≥ 1 is -2\(e^{(-n/n^2)}\) ≤ 121/\(n^2\).
To derive the inequality, we start by comparing the expressions −2\(e^{(-n/n^2)}\) and 121/\(n^2\).
Since we want to express the numbers in exact form, we keep them as they are.
The inequality states that −2\(e^{(-n/n^2)}\) is less than or equal to 121/\(n^2\).
This means that the left-hand side is either less than or equal to the right-hand side.
The exponential function e^x is always positive, so −2\(e^{(-n/n^2)}\) is negative or zero.
On the other hand, 121/\(n^2\) is positive for n ≥ 1.
Therefore, the inequality −2\(e^{(-n/n^2)}\) ≤ 121/\(n^2\) holds true for n ≥ 1.
The negative or zero value of −2\(e^{(-n/n^2)}\) ensures that it will be less than or equal to the positive value of 121/\(n^2\).
In symbolic notation, the inequality can be written as −2\(e^{(-n/n^2)}\) ≤ 121/\(n^2\) for n ≥ 1.
This representation captures the relationship between the two expressions and establishes the condition that must be satisfied for the inequality to hold.
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A sequence of patterns is made from circular tiles and square tiles. Here are the first three patterns in the sequence: a) How many square tiles are needed to make Pattern Number 7? [2 MARKS] b) How many circular tiles are needed to make Pattern Number 20? [2 MARKS] c) When the pattern number is odd, the total number of tiles (SQUARE & CIRCULAR) needed to make the pattern: A - will always be even | B - will always be odd | C - could be even or odd | [2 MARKS] !! PLEASE ANSWER ALL OF THE QUESTIONS !!
The patterns of tiles do not follow an arithmetic sequence or geometric sequence
When the pattern number is odd, the total number of tiles (SQUARE & CIRCULAR) needed to make the pattern will always be odd
The square tiles needed to make Pattern Number 7?From the question, we have the following pattern:
Pattern 1: 1 square and 8 circlesPattern 2: 4 squares and 12 circlesPattern 3: 9 squares and 16 circlesThe number of square tiles is calculated using:
Tn= n²
So, we have:
T₇ = 7²
T₇ = 49
Hence, 49 square tiles are needed in pattern 7
The circular tiles needed to make Pattern Number 20The number of circular tiles is calculated using:
Tn= 4n + 4
So, we have:
T₂₀= 4 * 20 + 4
T₂₀= 84
Hence, 84 circular tiles are needed in pattern 20
c) The conclusion on odd pattern number
Using the computations in (a) and (b), we have:
The total number of tiles in odd pattern number is always odd
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There are 24 people using a gun. the ratio of men to women is 2 : 1. how many men are using the gym
The number of men using the gun is 8, using the given ratio of men to women as 2:1.
In the question, we are given that the ratio of men to women using a gun is 2:1, and a total of 24 people use a gun.
We are asked to find the number of men using the gun.
By the given ratio, we take the number of men using a gun to be 2x, whereas the number of women using a gun is x.
Thus, the total number of people using the gun = the number of men using a gun + the number of women using the gun,
or, the total number of people using the gun = 2x + x = 3x.
But, the total number of people using the gun is given to be 24.
Thus, we get an equation 3x = 24.
On solving this, we get:
3x = 24,
or, 3x/3 = 24/3,
or, x = 8.
Now, the number of men using a gun = 2x = 2*8 = 16.
The number of women using a gun = x = 8.
Thus, the number of men using the gun is 8, using the given ratio of men to women as 2:1.
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For the linear regression y = ẞ1 + ẞ2x + e, assuming that the sum of squared errors (SSE) takes the following form:
SSE = 382 +681 +382 + 18ẞ1ẞ2
Derive the partial derivatives of SSE with respect to B1 and B2 and solve the optimal values of these parameters.
a. B₁ = B1
b. B₂ =
The optimal values of these parameters are:
a. β₁ = 0
b. β₂ = 0
The linear regression y = β1 + β2x + e, assuming that the sum of squared errors (SSE) takes the following form:
SSE = 382 + 681 + 382 + 18β1β2
Derive the partial derivatives of SSE with respect to β1 and β2 and solve the optimal values of these parameters.
Given that SSE = 382 + 681 + 382 + 18β1β2 ∂SSE/∂β1 = 0 ∂SSE/∂β2 = 0
Now, we need to find the partial derivative of SSE with respect to β1.
∂SSE/∂β1 = 0 + 0 + 0 + 18β2 ⇒ 18β2 = 0 ⇒ β2 = 0
Therefore, we obtain the optimal value of β2 as 0.
Now, we need to find the partial derivative of SSE with respect to β2. ∂SSE/∂β2 = 0 + 0 + 0 + 18β1 ⇒ 18β1 = 0 ⇒ β1 = 0
Therefore, we obtain the optimal value of β1 as 0. Hence, the partial derivative of SSE with respect to β1 is 18β2 and the partial derivative of SSE with respect to β2 is 18β1.
Thus, the optimal values of β1 and β2 are 0 and 0, respectively.
Therefore, the answers are: a. β₁ = 0 b. β₂ = 0
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Find the Value of X. (Image Shown) 10 POINTS!!!!
Given that all sides are equal it mean it's a equilateral triangle which means all angles are equal.
by angle sum property
2x+2x+2x = 180
6x=180
x=30
A tudent olve the following equation and determine that the olution i −2. I the tudent correct? Explain
a = -2 is the value of linear equation .
What are examples of linear equations?
An equation with only one variable is referred to as a linear equation in one variable. It has the mathematical formula Ax + B = 0, where A and B can be any two real numbers, and x is an unknowable variable with just one possible value. One such linear equation in one variable is 9x + 78 = 18.Step 1 - Write the equation.
3/a + 2 - 6a/a² - 4 = 1/a - 2
Step 2 - rewrite the equation.
3/a + 2 - 6a/a² - 4 = 1/a - 2
Step 3 - Take the LCM.
3(a- 2) - ( a + 2 )/a² - 2² = 6a/a²-4
Step 4 - Further simplify the above expression
3a - 6 - a - 2/a² - 4 = 6a/a² - 4
Step 5 - Cancel out the denominator of both sides and then further simplify.
2a - 8 = 6a
a = -2
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The complete question is -
A student solves the following equation and determines that the solution is −2. Is the student correct? Explain.
3/a + 2 − 6a/a2 − 4 = 1/a − 2
during one season, a high school baseball team leads at the end of the fifth inning in 60% of the games. the team wins 75% of the time when they have the lead after 5 innings, but only 20% of the time when they do not
The probability that the team wins a game is given as follows:
0.53 = 53%.
How to calculate a probability?A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.
The percentages for wins in this problem are given as follows:
75% of 60% -> team leads at the end of five innings.20% of 40% -> team does not lead at the end of five innings.Hence the probability that the team wins a game is given as follows:
p = 0.75 x 0.6 + 0.2 x 0.4
p = 0.53 = 53%.
Missing InformationThe complete problem is:
During one season, a high school baseball team leads at the end of the fifth inning in 60% of the games. the team wins 75% of the time when they have the lead after 5 innings, but only 20% of the time when they do not. What is the probability that a team wins a single game.
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A car salesperson had $84,784 in total monthly sales for April and $107,270 in May. The salesperson earned $4,865 in total commission from those sales combined.
What is the salesperson's commission as a percent of the total monthly sales? Please explain!!
The salesperson's commission as a percent of the total monthly sales is approximately 5.74%.
To find the commission as a percent of the total monthly sales, first we need to calculate the total sales for both April and May:
Total sales = April sales + May sales = $84,784 + $107,270 = $192,054
Next, we can calculate the commission as a percent of the total sales:
Commission as percent of total sales = (Commission / Total sales) x 100%
Commission as percent of total sales = ($4,865 / $192,054) x 100% = 0.025 x 100% = 2.5%
Therefore, the salesperson's commission as a percent of the total monthly sales is approximately 5.74% (rounded to two decimal places).
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Please answer the questions with full working and explantation.
Thank you .
1/(x+5)=1/(4x-7)
Answer:
x = 4
Step-by-step explanation:
Given
\(\frac{1}{x+5}\) = \(\frac{1}{4x-7}\) ( cross- multiply )
4x - 7 = x + 5 ( subtract x from both sides )
3x - 7 = 5 ( add 7 to both sides )
3x = 12 ( divide both sides by 3 )
x = 4
Determine the radii of convergence of the Taylor series of the functions centered at the indicated pointsz0, without explicitly writing the series.
(a) sinz/e^z,z0=−2
(b) 1/cosz’ , z0=0
(c) z^2+1/(z−i), z0=1+i
a)The radius of convergence is R = |-2 - (-πi)| = |-2 + πi| = √(2^2 + π^2) ≈ 3.146.b)The radius of convergence is R = |1 + i - i| = |1| = 1. c)The radius of convergence is R = |1 + i - i| = |1| = 1.
The radius of convergence of a Taylor series centered at a point z0 is the distance from z0 to the nearest singularity of the function.
(a) The function sinz/e^z has singularities at z = kπi for any integer k, and the nearest singularity to z0 = -2 is at z = -πi. Therefore, the radius of convergence is R = |-2 - (-πi)| = |-2 + πi| = √(2^2 + π^2) ≈ 3.146.
(b) The function 1/cosz' has singularities at z = (k + 1/2)π for any integer k, which are equidistant from z0 = 0. Therefore, the radius of convergence is R = π/2.
(c) The function z^2+1/(z−i) has a singularity at z = i, which is the nearest singularity to z0 = 1 + i. Therefore, the radius of convergence is R = |1 + i - i| = |1| = 1.
Note that these radii of convergence only guarantee convergence within the radius; the series may converge or diverge at the boundary.
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Can somebody help me?
if the toss of a coin comes down heads, you win a dollar. if it comes down tails, you lose fifty cents. how much would you expect to gain after 20 tosses?
We could expect $30.00 to gain after 20 tosses.
What is the probability?Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
Probability = Number of favourable outcomes / Number of sample
The probability of all the events occurring need to be 1.
if the toss of a coin comes down heads, you win a dollar. if it comes down tails, you lose fifty cents.
We need to find out How much would you expect to gain after 20 tosses (in $ dollars).
Because if you think about it, you will see that about half of them are going to be heads and the other half are going to be tails.
Therefore, We could expect $30.00 to gain after 20 tosses.
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suppose researchers were interested in determining the relationship, if any, between the use of cell phones and the incidence of brain cancer. would it be better to use a randomized experiment, a case-control study, or an observational study that did not use cases and controls? explain.
A randomized experiment would be the best design for determining the relationship between cell phone use and brain cancer.
In a randomized experiment, individuals are randomly assigned to either a cell phone use group or a non-cell phone use group, and then the incidence of brain cancer is compared between the two groups.
This type of study can establish causality because it eliminates the possibility of confounding variables and ensures that any observed difference in brain cancer incidence is truly due to cell phone use and not some other factor.
Additionally, randomized experiments provide more robust results than observational studies, as they reduce the potential for selection bias and allow for control over extraneous variables.
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For which situation is the use of approximate numbers most appropriate?
A. preparing your yearly taxes
B. ordering programs for a high school musical
C. paying a cashier for a meal at a fast food restaurant
D. the maximum number of basketball players on the field
The values of m and n are whole numbers greater than 1. Which is true about the quotient
Answer:
"The expression will always equal m" is true about the quotient of \(\frac{m}{n}\) ÷ \(\frac{1}{n}\)
Step-by-step explanation:
Let us solve the question
∵ The expression is \(\frac{m}{n}\) ÷ \(\frac{1}{n}\)
→ In the division of fractions, we change the division to multiplication
and reciprocal the fraction after the division sign
∵ The reciprocal of \(\frac{1}{n}\) is \(\frac{n}{1}\)
∴ \(\frac{m}{n}\) ÷ \(\frac{1}{n}\) = \(\frac{m}{n}\) × \(\frac{n}{1}\)
→ In the multiplication of fractions, we can simplify the terms in
the numerators by the terms in the denominators
∵ There is n in the numerator and denominator
∴ Cancel n up and down
∴ \(\frac{m}{n}\) × \(\frac{n}{1}\) = \(\frac{m}{1}\)
∴ \(\frac{m}{n}\) × \(\frac{n}{1}\) = m
∴ \(\frac{m}{n}\) ÷ \(\frac{1}{n}\) = m
∴ The quotient is m
∴ The expression will always equal m
What is the 96th term of -16,-28,-40 hi
Answer:
Tn = a + (n - 1) d
where a = first term
n = number of the member of the sequence
d = common difference
a = -16
n = 96
d = second term - first term or
third term - second term
= -28 - (-16) = -28 + 16 = -12 or
= -40 - (-28) = -40 + 28 = -12
d = -12
Tn = a + (n - 1) d
= -16 + (96 - 1) -12
= -16 + (95) -12
= -16 + (-1140)
= -16 - 1140 = -1156
If the triangle are similar, write a similarity
statement and tell whether you would use
AA similarity, SAS similarity, or SSS
similarity. If not similar, explain why.
Explanation
Answer:
The triangles are similar due to AAA
Step-by-step explanation:
'The triangles ABC and DBE are similar because they have a common angle < B, and also angle < E is marked as congruent to angle < A. Then the third angle <C is going to be congruent to angle D as well due to the property of addition of internal angles of a triangle must add to 180 degrees.
Then the triangles are similar due to AAA
find the derivative. g(x) = cosh(ln(x))
The derivative of g(x) = cosh(ln(x)) is: g'(x) = (x^2 - 1)/(2x^2). To find the derivative of g(x) = cosh(ln(x)).
We can use the chain rule of differentiation.
Recall that the chain rule states that the derivative of a composite function f(g(x)) is given by:
(f(g(x)))' = f'(g(x)) * g'(x)
In this case, we have:
g(x) = cosh(ln(x))
So we need to find g'(x). To do this, we will first use the chain rule to find the derivative of the inner function ln(x), which is:
(ln(x))' = 1/x
Next, we can find the derivative of cosh(u) where u = ln(x) as follows:
cosh(u) = (e^u + e^(-u))/2
cosh'(u) = (e^u - e^(-u))/2
So we have:
g'(x) = cosh'(ln(x)) * (ln(x))'
g'(x) = (e^(ln(x)) - e^(-ln(x)))/2x
g'(x) = (x - 1/x)/2x
g'(x) = (x^2 - 1)/(2x^2)
Therefore, the derivative of g(x) = cosh(ln(x)) is:
g'(x) = (x^2 - 1)/(2x^2)
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What is the sum of the measures of the exterior angles of the polygon shown below? If necessary, round to the nearest tenth.
The sum of the exterior angle of the pentagon is 360 degrees.
How to find the angles in a polygon?The polygon above is a pentagon. A pentagon is a polygon with 5 sides.
If the side of a polygon is extended, the angle formed outside the polygon is the exterior angle. The sum of the exterior angles of a polygon is 360°.
Therefore, the sum of the measure of the exterior angles of the pentagon as shown is 360 degrees.
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Megan is buying 168 balloons for a large party. At Jamie's Party Store, balloons are sold in packs of 12 and packs of 36. Costs for each pack are shown. 36 $11.88 12 $5.16 How many packs of 12 and 36 balloons should Megan buy from Jamie's Party Store to spend the least amount of money? Megan should buy packs of 36 balloons, and packs of 12 balloons.
Answer:
$57.84
Step-by-step explanation:
Balloons needed = 168
Cost of 36 balloons per pack = $11.88
Cost of 12 balloons per pack = $5.16
cost per balloon
36 per pack = $11.88 / 36
= $0.33
12 per pack = $5.16 / 12
= $0.43
In order to minimize cost, she should buy as many packs of 36 per pack balloon
36 per pack × 1 pack = 36
36 per pack × 2 packs = 72
36 per pack × 3 packs = 108
36 per pack × 4 packs = 144
36 per pack × 5 packs = 180
The required number of balloons is 168
So, the number of possible 36 packs to buy is 4, that is, 144 balloons
Balloons remaining = 168 - 144
= 24
Possible packs of 12 balloons per pack possible is
12 per pack × 1 pack = 12
12 per pack × 2 packs = 24
Therefore, Megan needs to buy 4 packs of 36 balloons per pack and 2 packs of 12 balloons per pack
Cost of 4 packs of 36 balloons per pack = 4 × $11.88
= $47.52
Cost of 2 packs of 12 balloons per pack = 2 × $5.16
= $10.32
Total cost = $47.52 + $10.32
= $57.84