Answer:
278.75
Step-by-step explanation:
Hello, all you need to do, is find 25 precent of 345 which is 86.25 then which you subtract from 345 for the price.
2. (7 points) If f(x) = -5 cosx+xtanx, find df and evaluate if x = pi/4 and dx = 1/24
The value of df, when x = π/4 and dx = 1/24, is (-5π - 5√2)/(96√2).
To find the derivative of the function f(x) = -5cos(x) + xtan(x), we'll use the sum and product rules of differentiation. Let's start by finding df/dx.
Apply the product rule:
Let u(x) = -5cos(x) and v(x) = xtan(x).
Then, the product rule states that (uv)' = u'v + uv'.
Derivative of u(x):
u'(x) = d/dx[-5cos(x)] = -5 * d/dx[cos(x)] = 5sin(x) [Using the chain rule]
Derivative of v(x):
v'(x) = d/dx[xtan(x)] = x * d/dx[tan(x)] + tan(x) * d/dx[x] [Using the product rule]
= x * sec^2(x) + tan(x) [Using the derivative of tan(x) = sec^2(x)]
Applying the product rule:
(uv)' = (5sin(x))(xtan(x)) + (-5cos(x))(x * sec^2(x) + tan(x))
= 5xsin(x)tan(x) - 5xcos(x)sec^2(x) - 5cos(x)tan(x)
Simplify the expression:
df/dx = 5xsin(x)tan(x) - 5xcos(x)sec^2(x) - 5cos(x)tan(x)
Now, we need to evaluate df/dx at x = π/4 and dx = 1/24.
Substitute x = π/4 into the derivative expression:
df/dx = 5(π/4)sin(π/4)tan(π/4) - 5(π/4)cos(π/4)sec^2(π/4) - 5cos(π/4)tan(π/4)
Simplify the trigonometric values:
sin(π/4) = cos(π/4) = 1/√2
tan(π/4) = 1
sec(π/4) = √2
Substituting these values:
df/dx = 5(π/4)(1/√2)(1)(1) - 5(π/4)(1/√2)(√2)^2 - 5(1/√2)(1)
Simplifying further:
df/dx = 5(π/4)(1/√2) - 5(π/4)(1/√2)(2) - 5(1/√2)
= (5π/4√2) - (10π/4√2) - (5/√2)
= (5π - 10π - 5√2)/(4√2)
= (-5π - 5√2)/(4√2)
= (-5π - 5√2)/(4√2)
Now, to evaluate df/dx when dx = 1/24, we'll multiply the derivative by the given value:
df = (-5π - 5√2)/(4√2) * (1/24)
= (-5π - 5√2)/(96√2)
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An elevator travels 342 feet as it goes from the lobby of a building to the top floor. It takes 7 seconds to travel the first 133 feet. If the elevator travels at the same rate, how much longer does it take reach the top floor?
1-) 11s
2-)133s
3-)22s
4-)12s
Answer:
I THINK 1
Step-by-step explanation:
rewrite 24/7 as a mixed number
A fraction is a fragment of a whole number, used to define parts of a whole. The whole can be a whole object, or many different objects. The number at the top of the line is called the numerator, whereas the bottom is called the denominator.
To solve this, we would first need to see how many times 7 can fit into 24.
7 + 7 + 7 = 21.
We can see that is fits 3 times into 24, but what about the remaining 3? We can take that 3 and make it into a fraction of 7, making it \(\frac{3}{7}\).
Now, putting the 3 and the 3/7 together, we get \(3\frac{3}{7}\).
A traffic circle is a round intersection. The first one built in the United
States is the Columbus Circle in New York City, and has a circular monument in
the center covering approximately 148,000 square feet. What is the radius of the
monument, to the nearest hundredth?
From the given data of traffic circle, the center of the circular monument is covering approximately 148,000 square feet then the radius of the monument is equal to 217.10 feet.
As given in the question,
Given that traffic circle is a round intersection.
It has circular monument in the center.
Area covered by circular monument is equal to 148,000 square feet.
Let us consider radius of the circular monument be 'r'
Area of circular monument = 148,000
⇒ πr² = 148,000
⇒r² = 148,000 / π
⇒ r² = 148,000/ 3.14
⇒ r = √148,000/ 3.14
⇒ r = 217. 103... feet
⇒ r = 217.10 feet ( nearest hundredth)
Therefore, from the given data of traffic circle, the center of the circular monument is covering approximately 148,000 square feet then the radius of the monument is equal to 217.10 feet.
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In the past, 75% of the tourists who visited Chattanooga went to see Rock City. The management of Rock City recently undertook an extensive promotional campaign. They are interested in determining whether the promotional campaign actually INCREASED the proportion of tourists visiting Rock City. The correct set of hypotheses is _____.
Answer:
The correct set of hypotheses is:
\(H_0: \pi=0.75\\\\H_a:\pi>0.75\)
Step-by-step explanation:
This should be researched with a hypothesis test on the proportion of tourists visiting Rock City.
The claim that want to be tested is if the proportion has increased from the past proportion (π=0.75).
Then, the alternative hypothesis will state that the proportion is significantly higher than 0.75.
On the contrary, the alternative hypothesis will state that the proportion is not significantly different than 0.75.
This can be written as:
\(H_0: \pi=0.75\\\\H_a:\pi>0.75\)
At Sam's Club, a case of 16 boxes of macaroni and cheese can be purchased for $24.00. Which equation could be used to describe this situation?
A. x+16=24
B. x-16= 24
C. x/16=24
D. 16x=24
Thanks
Answer:
D
Step-by-step explanation:
16 times the # of boxes = $24.
You can solve this equation by doing 24/16=$1.5 per box
Difference between 5429 and 5907 to the greatest place.
answer- u have to subtract the great no. from the smaller one
Given numbers are 5429 and 5907..
To find the difference we should subtract..
5907
- 5429
-------------
478
_______
#Answered by: Cutest GhostURGENT!! ILL GIVE BRAINLIEST! AND 100 POINTS
The graphical solution to a systems of equations is the coordinate pair at the place where the two linear graphs intersect.
What is the graphical solution to a systems of equationsThe graphical solution to a system of equations is a method of finding the point of intersection between the graphs of the equations. We plot each equation as a line on the same coordinate plane, and then find the point where the lines intersect.
If we have two equations in two variables, the solution to the system is the point where the two lines intersect. Also if there are three equations in three variables, the solution is the point where the three planes intersect.
In conclusion, the graphical solution to a systems of equations is the coordinate pair at the place where the two linear graphs intersect.
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Angie and Kim are sharing a large sub sandwich. Angie ate
of the sandwich, and Kim ate another
of the sandwich. How much of the sandwich did they eat altogether?
The amount of sandwich they eat altogether is 2/3
How to determine the amountA fraction can be defined as the part of a whole number, a whole number, a whole element.
The different types of fractions are listed as;
Mixed fractionsProper fractionsImproper fractionsSimple fractionsComplex fractionsFrom the information given, we have that;
Angie ate 1 / 3 of the sandwich
Kim ate another 1 / 3 of the sandwich
To determine the total amount, we have;
1/3 + 1/3
add the values
1 + 1/3
add the values, we get;
2/3
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The complete question:
Angie and Kim are sharing a large sub sandwich. Angie ate 1 / 3 of the sandwich, and Kim ate another 1 / 3 of the sandwich. Please work out in detail.
The number of girls who work at Super Shopper is 3 more than 4 times the number of boys. If 20 boys work at Super Shopper, how many girls work there?
64
80
27
83
Answer:
83
Step-by-step explanation:
Keywords: more means + and times means x
We don't know the number of boys, so it is the variable. I will use b to represent the number of boys.
3 + 4b
It says 20 boys work at the Super Shopper, so plugin 20 for b. Multiply the 4 and 20 together.
3 + 4(20)
3 + 80
83
A system of equations is given.
Equation 1: 4x − 6y = 10
Equation 2: 9x + 2y = 7
Explain how to eliminate x in the system of equations.
Step-by-step explanation:
To eliminate x in the system of equations:
1. Multiply Equation 1 by 9 and multiply Equation 2 by -4, this gives:
Equation 1: 36x -54y = 90
Equation 2: -36x - 8y = -28
2. Add the two equations together to eliminate x:
(36x - 54y) + (-36x - 8y) = 90 - 28
Simplifying, we get:
-62y = 62
3. Solve for y:
y = -1
4. Substitute y = -1 into one of the original equations, say Equation 1:
4x - 6(-1) = 10
Simplifying, we get:
4x + 6 = 10
5. Solve for x:
4x = 4
x = 1
Therefore, the solution to the system of equations is x = 1 and y = -1. We can check that these values are correct by substituting them back into the original equations and verifying that they satisfy both equations.
.nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
Answer: What is this free?
Answer:
yes
Step-by-step explanation:
yes+yes(no-no)
=yes
Find each value to 4 decimal places. Include Step by step
a) sin 36°
b) cos 14°
c) tan 86°
a) sin 36° ≈ 0.5878
b) cos 14° ≈ 0.9691
c) tan 86° ≈ -9.5144
To find the values of trigonometric functions, such as sine, cosine, and tangent, for specific angles, we can use a scientific calculator or trigonometric tables. However, I can provide you with step-by-step calculations to find the values of sin 36°, cos 14°, and tan 86°.
a) sin 36°:
Step 1: Convert 36° to radians:
36° * (π/180) ≈ 0.6283 radians
Step 2: Use a scientific calculator to find the sine of 0.6283 radians:
sin 0.6283 ≈ 0.5878
Therefore, sin 36° ≈ 0.5878
b) cos 14°:
Step 1: Convert 14° to radians:
14° * (π/180) ≈ 0.2443 radians
Step 2: Use a scientific calculator to find the cosine of 0.2443 radians:
cos 0.2443 ≈ 0.9691
Therefore, cos 14° ≈ 0.9691
c) tan 86°:
Step 1: Convert 86° to radians:
86° * (π/180) ≈ 1.5009 radians
Step 2: Use a scientific calculator to find the tangent of 1.5009 radians:
tan 1.5009 ≈ -9.5144
Therefore, tan 86° ≈ -9.5144
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Plastic parts produced by an injection-molding operation are checked for conformance to specifications. Each tool contains 14 cavities in which parts are produced, and these parts fall into a conveyor when the press opens. An inspector chooses 1 part(s) from among the 14 at random. Two cavities are affected by a temperature malfunction that results in parts that do not conform to specifications.
Round your answers to four decimal places.
(a) What is the probability that the inspector finds exactly one nonconforming part?
(b) What is the probability that the inspector finds at least one nonconforming part?
The probability values
(a) P(X=1) = 0.2696(b) P(at least one nonconforming part) = 0.8845The probability that the inspector finds exactly one nonconforming partFrom the question, we have the following parameters that can be used in our computation:
n = 14
p = 2/14
The probability P(x =1) can be calculated as
P(x) = C(n, x) * p^x * (1 - p)^(n - x)
In this case, we have
P(x = 1) = C(14, 1) * (2/14)^1 * (1 - (2/14))^(13
Evaluate
P(x = 1) = 0.2696
The probability that the inspector finds at least one nonconforming partThe probability P(x >= 1) can be calculated as
P(x) = 1 - P(0)
In this case, we have
P(x >= 1) = 1 - [C(14, 0) * (2/14)^0 * (1 - (2/14))^(14)]
Evaluate
P(x >= 1) = 0.8845
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Which of the following statements have the same result? Explain each step in solving each one.
I. f(2) when f(x) = 3x + 4
II. f−1(4) when f(x) =3x-4/5
III. 3y − 6 = y + 10
You must solve each and show and explain each step. Then explain equivalency. Part 2 you must find the inverse equation.
Answer:
None of the following statements have the same result.
Step-by-step explanation:
1) f(2) when f(x) = 3x + 4
We just have to put x=2
\(f(x)=3x+4\\f(2)=3(2)+4\\f(2)=6+4\\f(2)=10\)
So, f(2) when f(x) = 3x + 4 is x=10
2) f⁻¹ (4) when f(x) =3x-4/5
We need to find f⁻¹(x) first.
Put \(y=3x-\frac{4}{5}\)
Now solve for x
Add 4/5 on both sides
\(y+\frac{4}{5}=3x-\frac{4}{5}\\y+\frac{4}{5}=3x\\x=\frac{1}{3}y+\frac{4}{5*3}\\x=\frac{1}{3}y+\frac{4}{15}\\x=\frac{5y+4}{15}\)
Now put f⁻¹(x) instead of x and replace y with x
\(f^{-1}(x)=\frac{5x+4}{15}\)
Now finding f⁻¹(4)
\(f^{-1}(x)=\frac{5x+4}{15} \\f^{-1}(4)=\frac{5(4)+4}{15} \\f^{-1}(4)=\frac{20+4}{15} \\f^{-1}(4)=\frac{24}{15}\)
f⁻¹ (4) when f(x) =3x-4/5 is 24/15
3) \(3y - 6 = y + 10\\\)
Solving:
\(3y - 6 = y + 10\\3y-y=10+6\\2y=16\\y=16/2\\y=8\)
Solving 3y − 6 = y + 10, we get y=8
None of the following statements have the same result.
2(5+5)=x Need help asap
Given equation is
\(2(5+5)=x\)Consider the order of operations PEDMAS
P-parenthesis
E-exponents
D-division
M-multiplication
A-addition
S-subtraction.
First, we need to solve it inside the bracket.
Add 5 and 5, we get 10.
\(2(10)=x\)Multiply 2 and 10, we get 20.
\(20=x\)Hence the value of x is 20.
\(x=20\)Please help me who knows how to do this
Josh says that you can write division problems two ways:
72/6=12 72/12=6
Sarah agrees that division problems can be written two ways but she says that Josh wrote one of his division problems incorrectly. Which problem is incorrect and how does Sarah think he should write it correctly?
There is nothing wrong with either division problem
72/6=12 should be written as 6/72=12
72/12=6 should be written as 12/72=6
Answers B and C are both correct
As Josh says that you can write division problems two ways such as in "72/6=12" or "72/12=6", then, from this, we will agree that there is nothing wrong with either division problem. The Option A is correct.
What is the structure of Division problem?A number is divided in division, which is a straightforward operation. The simplest way to conceptualize it is as a set of objects being distributed among a set of individuals, as in the example given above. Basically, division works by dividing numbers into equal groups of numbers.
A division problem has three main components: the dividend, the divisor, and the quotient. The amount that will be divided is the dividend. The quantity of "people" among whom the number is divided is referred to as the divisor. The answer is the quotient.
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What is 29% of 150?
Show work
Answer:
To find 29% of 150, we can first express 29% as a decimal by dividing 29 by 100. 29% is the same as 0.29.
Then, we multiply 0.29 by 150 to find the answer:
0.29 * 150 = 43.5
So, 29% of 150 is equal to 43.5.
Here's the work:
29% * 150 = 0.29 * 150 = 43.5
\(\huge\text{Hey there!}\)
\(\mathsf{29\%\ of \ 150}\)
\(\mathsf{= \dfrac{29}{100} \ of \ 150}\)
\(\mathsf{= \dfrac{29}{100} \times 150}\)
\(\mathsf{= \dfrac{29}{100} \times \dfrac{150}{1}}\)
\(\mathsf{= \dfrac{29(150)}{100(1)}}\)
\(\mathsf{= \dfrac{4,350}{100}}\)
\(\mathsf{= \dfrac{4,350 \div 50}{100 \div 50}}\)
\(\mathsf{= \dfrac{87}{2}}\)
\(\mathsf{= 43 \dfrac{1}{2}}\)
\(\mathsf{= 43.5}\)
\(\huge\text{Therefore, your answer should be:}\)
\(\huge\boxed{\mathsf{\dfrac{87}{2}}}\huge\checkmark\)
\(\huge\boxed{\mathsf{43 \dfrac{1}{2}}}\huge\checkmark\)
\(\huge\boxed{\mathsf{43.5}}\huge\checkmark\)
\(\large\text{Either of those should work because they are all equivalent to each}\\\large\text{other}\uparrow\)
\(\huge\text{Good luck on your assignment \& enjoy your day! }\)
ILL GIVE YOU BRAINLIST !
b/2 - 1 as a verbal phrase
Answer:
b/2-1 has a verbal phrase can be one minus the quotient of b and 2.
Carrie has 3gallons of paint Bryan has 10quarts of paint how many more pints do Carrie have than Bryan
Carrie has 4 more pints of paint than Bryan.
Carrie has 3 gallons of paint, which is equivalent to 12 quarts (1 gallon = 4 quarts). On the other hand, Bryan has 10 quarts of paint.
To compare the quantities in the same unit, we note that 1 quart is equal to 2 pints.
Carrie's 12 quarts of paint is equivalent to 12 × 2 = 24 pints.
Bryan's 10 quarts is equivalent to 10 × 2 = 20 pints.
To find the difference, we subtract Bryan's pint quantity from Carrie's:
24 - 20 = 4 pints.
Therefore, Carrie has 4 more pints of paint than Bryan.
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I need help right now!!!
1. Figure STUV is congruent to Figure KLMN because rigid motions can be used to map Figure STUV onto Figure KLMN.
2. Figure STUV is also similar to Figure KLMN because rigid motions and/or dilations can be used to map Figure STUV onto Figure KLMN. The scale factor is 2.
What does it mean for figures to be congruent?When it is said that two figures are congruent, like the ones shown on the graph, This means that they have the same shape and size.
Similar figures have the same shape, but they may have different sizes and be located in different positions.
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Two less than the product of five and a number is negative 12.
Answer:
1. 2x-4=10
2. 3x+3=2x-1
3. 7x+x=24
4. 5+x=-18
5. -14=10-6x
6. 2x-2=x+12
7. 3x-31=2
8. 5x-14=16
9. 2x+8=4(5-x
10. 2x-3=3(1+x)
Explanation:
I JUST TAKEN THE QUIZ!!!!!
[15-(|-6+2|+ squareroot9)]^2
can anyone explain the steps for how to solve it too? i’m confused :(
Answer:
1936
Step-by-step
\([15 - (1 - 6 + 21 + \sqrt{9} )] ^{2}\)
use BIDMAS
(1 - 6 + 21 + \(\sqrt{9}\)) = (1 - 6 + 21 + 3) = (1 - 30) = -29
[15 - -29] = [15 + 29] because two minuses together make a plus
\(44^{2}\) = 1936
Help meeeeeeeeeeeeeeeeeeee
Answer:
I believe it is y=1x or y=x
Answer:
14
Step-by-step explanation:
The constant of proportionality is the y number when x is 1. Look on the bottom of the graph. Find 1, so up to the line and then across left to the y axis. you will be at 14. This means that every time the x increases by 1, the increases by 14
The data in which table represents a linear function that has a slope of zero? A 2-column table with 5 rows. Column 1 is labeled x with entries negative 5, negative 4, negative 3, negative 2, negative 1. Column 2 is labeled y with entries 5, 5, 5, 5, 5. A 2-column table with 5 rows. Column 1 is labeled x with entries 1, 2, 3, 4, 5. Column 2 is labeled y with entries negative 5, negative 4, negative 3, negative 2, negative 1. A 2-column table with 5 rows. Column 1 is labeled x with entries negative 5, negative 4, negative 3, negative 2, negative 1. Column 2 is labeled y with entries 5, 4, 3, 2, 1. A 2-column table with 5 rows. Column 1 is labeled x with entries 5, 5, 5, 5, 5. Column 2 is labeled y with entries negative 5, negative 4, negative 3, negative 2, negative 1.
Answer:
A 2-column table with 5 rows. Column 1 is labeled x with entries negative 5, negative 4, negative 3, negative 2, negative 1. Column 2 is labeled y with entries 5, 5, 5, 5, 5.
Step-by-step explanation:
The table with all y-values the same will graph as a horizontal line, a line with a slope of zero.
Apparently, the first table is like that.
Answer:
A is the answer
Step-by-step explanation:
just took the test
This is the last one
Answer:
C option SAS is the correct answer of this question .....plz mark my answer as brainlist plzzzz vote me also plzzzz
Jennifer has a total of $50 to spend on a new outfit. She bought a sweater for $20. Which shows the part of her total Jennifer spent on the sweater?
A. 1/2
B. 0.4
C. 30%
D. 2/10
Answer: B 0.4
Step-by-step explanation:
50-20=30
0.4 is 40%
40% of 50 is 20
help please and thank you
Answer:
1) 9x
2) 3b
3) 3m
4) 5a
5) 7x
6) 3a + 5b
7) 9x - 4
8) 2b + m
9) 13a + b + 6c
10) 9b + 1
11) 7p
12) 2a + b -10
Step-by-step explanation:
help pleasee
look in the photo
Answer: c
Step-by-step explanation:
Because group B has Pharrell lines