Answer:
The number is 20
Step-by-step explanation:
( x / 5 ) - 7 = -3
+7 +7
————————
( x / 5) = 4
*5 *5
————————
x = 20
To Check;
20 / 5 = 4
4 - 7 = -3
Hope this helps!
Find the exact value of tan(x-y) if sin x=8/17 cosy = 3/5
To solve the the question we proceed as follows:
From trigonometric laws
\((cos x)^2+(sin x)^2=1\)
\((cos x)^2+(sin x)^2=1\)
\(sin (x-y)=sin\) \(x\) \(sin\) \(y-sin\) \(y\) \(cos\) \(x\)
\(cos (x-y)=cos\) \(x\) \(cos\) \(y+sin\) \(x\) \(xin\) \(y\)
si \(x=\frac{8}{17}\)
\(cos\) \(x=sqrt(1-(sin x)^2)=sqrt(1-64/289)=sqrt(\frac{225}{289} )=\frac{15}{17}\)
\(cos\) \(y=\frac{3}{5}\)
\(sin\) \(x= sqrt(1- (cos x)^2)= sqrt(1-\frac{9}{25} )=sqrt(\frac{16}{25} )=\frac{4}{5}\)
thus
\(tan (x-y)=[sin (x-y)]/[cos (x-y)]\)
=[sin x cos y-sin y cos x]/[cos x cos y+sin x sin y]
plugging in the values we obtain:
\([8/17 *3/5-4/5*15/7]/[15/17*3/5+8/17*4/5]\)
simplifying
\([24/85-60/85]/[45/85+32/85]\)
\(=-\frac{36}{77}\)
9. The price of a Delta Air Lines ticket from New York to Orlando increased to $450. This is an 8% increase. What was the old fare to nearest cent?
Answer:
$416.66
Step-by-step explanation:
We take
450 divided by 108, then time 100 = $416.66
So, the old fare is $416.66
Bandhan Bank employee salary after 10 years
Answer:
- Banking Operations salary in India with less than 1 year of experience to 10 years ranges from ₹ 1.4 Lakhs to ₹ 7 Lakhs with an average annual salary of ₹ 3.1 Lakhs based on 261 latest salaries
Which equation shows the point-slope form of the line that passes through (3, 2) and has a slope of y plus StartFraction one-half EndFraction equals 3 left-parenthesis x minus 2 right-parenthesis.?
y + 2 =y plus 2 equals StartFraction one-third EndFraction left-parenthesis x plus 3 right-parenthesis.(x + 3)
y – 2 = y minus 2 equals StartFraction one-third EndFraction left-parenthesis x minus 3 right-parenthesis.(x – 3)
y + 3 = y plus 3 equals StartFraction one-third EndFraction left-parenthesis x plus 2 right-parenthesis.(x + 2)
y – 3 = y plus StartFraction one-half EndFraction equals 2 left-parenthesis x minus 3 right-parenthesis.(x – 2)
The equation that shows the point-slope form of the line passing through (3, 2) with a slope of (1/2) is:
y - 2 = (1/2)(x - 3)
In the point-slope form of a linear equation, the formula is y - y1 = m(x - x1), where (x1, y1) represents a point on the line, and m represents the slope of the line. By substituting the given values into the formula, we can determine the correct equation.
In this case, the given point is (3, 2) and the slope is (1/2). Plugging these values into the formula, we get:
y - 2 = (1/2)(x - 3)
This equation represents the line passing through the point (3, 2) with a slope of (1/2). It is in the point-slope form, which allows us to easily determine the equation of a line based on a given point and slope.
Therefore, the correct equation is y - 2 = (1/2)(x - 3).
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Answer: B
Step-by-step explanation:
Shahwhehehehdjdjendbxbsnenenen
Answer:
Shahwhehehehdjdjendbxbsnenenen
The seventh grade students are having an end-of-year party in the schoal
cafeteria. There are 754 students attending the party. Each table seats 6 students.
How many tables are needed to seat all of the students?
A bacteria population is initially 320. After 45 minutes, they've grown in number to 700. What is the doubling time for this population? Round to the nearest second. answer choices 39 minutes 41 seconds 39 minutes 31 seconds 39 minutes 21 seconds 39 minutes 51 seconds
Answer: 39 minutes 51 seconds
Step-by-step explanation:
Nt=N0 * 2^n
N0=Initial population
n=number of times bacteria divide
700=320*2^n
log2(700/320)=1.129283017=n
45/1.129283017=39.84829252 minutes
0.84829252*60=50.89755135≈51seconds
so the answer is
39minutes and 51seconds
Which statements are true regarding the sequence below? Check all that apply.
20.4, 24, 244.
It can be represented using the formula f(x + 1) = (f(x)) when f(1) = 10.
It can be represented using the formula x=4
It can be represented using the formula fox)=
The domain of the sequence is all real numbers.
The range of the sequence is all natural numbers.
The statements that are true regarding the sequence below are
It can be represented using the formula f(x) = 10/3 (6/5)ˣ⁻¹The domain of the sequence is all real numbers.How to find the true statementsThe given sequence include 10/3, 4, 24/5, 244/25
Applying the formula f(x) = 10/3 (6/5)ˣ⁻¹ to it
for x = 1, f(x) = 10/3 (6/5)¹⁻¹ = 10/3
for x = 2, f(x) = 10/3 (6/5)²⁻¹ = 4
for x = 3, f(x) = 10/3 (6/5)³⁻¹ = 24/5
This shows that the formula works for it hence a correct statement
Real numbers include all positive and negative numbers, fractions and decimals alike and the domain are natural numbers which are part of real numbers
The range are also all real numbers and this go beyond natural numbers
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Bill wants to earn extra money selling lemonade in front of his house.
It costs $1.20 to start his business and each glass of lemonade costs $0.06 to make. He plans to sell the lemonade for $0.10 a glass.
a) Write an equation that represents his cost.
b) Write an equation that represents his revenue.
Graph both equations on the same set of axes.
d) What does the point of intersection mean in this case?
e) Does Bill make a profit or lose money for
i) 20 glasses sold? in) 35 glasses sold? ili) 50 glasses sold?
The amount to start the business, the cost to make a lemonade, and the amount Bill intends to sell a glass of lemonade indicates the costs and revenues are;
a) Cost = 1.20 + 0.06·x
b) Revenue = 0.10·x
c) Please find attached the required graph created with MS Excel
d) The point of intersection is the break even point of the business
e) i) Loses money
ii) Makes money
iii) Makes money
What is a revenue?A revenue is the sum of the amount received by a business for the goods and or services sold within a period.
The cost to start the business = $1.20
The cost of each glass of lemonade = $0.06
The amount he plans to sell a glass of lemonade = $0.10
a) The cost of the lemonade is; C = 1.20 + 0.06 × x
b) The revenue from the sale of the lemonade is R = n × 0.10
c) Please find attached the graph of both equations on the same axis, creates with MS Excel
d) The point of intersection, (30, 3), means that the cost and revenue are the same after selling 30 glasses of the lemonade, which is the breakeven point.
e) The graph and the function indicates that Bill makes 20 × $0.1 = $2 from the sale of 20 lemonade
The cost of 20 lemonade = $1.2 + 20 × $0.06 = $2.4
The cost is more than the revenue, therefore, Bill loses money
ii) 35 glasses sold indicates;
Revenue = 35 × 0.1 = 3.5
Cost = 1.2 + 35 × 0.06 = 3.3
The revenue is more than the cost and therefore, Bill makes a profit
iii) 50 glasses
Revenue = 50 × 0.1 = 5
Cost = 1.2 + 50 × 0.06 = 4.2
Bill makes money
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f(x)=x 2 −6x+3 g(x)= x−2 f ( g ( 11 ) ) = f(g(11))
Answer:
30
Step-by-step explanation:
g(11)= 11-2=9
f(9)= 9²-54+3= 30
Can someone help me with this
9514 1404 393
Answer:
314 square inches
Step-by-step explanation:
The radius is half the diameter. If the diameter is 20 inches, the radius is 20/2 = 10 inches. The area is given by the formula ...
A = πr²
Filling in the given values, we get ...
A = 3.14×(10 in)² = 314 in² . . . . area of the circle
AAAAAAAAAAAAAAAA HELP PLEASE HELP
Answer:
x=-5
Step-by-step explanation:
Answer:
x = -5
4x + 12 = -8
4x = -20
x = -5
Hope this helps
Can the sides of a triangle have lengths 3, 4, and 11
Answer:
No
Step-by-step explanation:
The sum of any two sides of a triangle must be greater than the remaining side.
Here, 3+4=7 which is NOT greater than 11
Answer:
No there is no chance of the triangle having length 3,4 and 11
11= -11r PLS HELP PLSSSS
Find the equation to the line below.
y
Answer:
y = x - 1
Step-by-step explanation:
lmk if you want an explanation
I just need the Inequality plz
You want to adopt a new puppy. The adoption fee is $250, and you have $105.50 saved up so far. If your after school job pays $7.50 per hour.
Answer:
Hi there!
An inequality to demonstrate this is:
105.5 + 7.5x >= 250
Hope this helps
how many solutions does equation 6x + y = -1 and -6x - 4y =4 have
Answer:
There are no solutions.
Step-by-step explanation:
When you solve for x in the first equation, you get x = (-1-y)/6. Plugging this value for x into the second equation gives you -4y = 4 + y, which has no solutions.
Find non-invertible matrices A,B such that A+B is invertible. Choose A,B so that (1) neither is a diagonal matrix and (2) A,B are not scalar multiples of each other.A = [_____ _____][_____ _____]B = [_____ _____][_____ _____]
Matrices A and B are non-invertible matrices that can be added together to form an invertible matrix. To find these matrices, we can use the following steps:
Step 1: Choose a matrix A that is not a diagonal matrix and is not invertible. One example of such a matrix is
\(A = \left[\begin{array}{ccc}1&1\\0&0\end{array}\right]\)
Step 2: Choose a matrix B that is not a diagonal matrix, is not invertible, and is not a scalar multiple of matrix A. One example of such a matrix is
\(B = \left[\begin{array}{ccc}0&0\\1&1\end{array}\right]\)
Step 3: Add the matrices A and B together to form the matrix A+B. This matrix will be invertible, as shown below:
\(A+B = \left[\begin{array}{ccc}1&1\\0&0\end{array}\right]+\left[\begin{array}{ccc}0&0\\1&1\end{array}\right]=\left[\begin{array}{ccc}1&1\\1&1\end{array}\right]\)
Step 4: Verify that the matrix A+B is invertible by finding its determinant. The determinant of a 2x2 matrix is given by:
det(A+B) = (1)(1) - (1)(1) = 0
Since the determinant of the matrix A+B is not equal to zero, the matrix is invertible.
Therefore, the matrices \(A = \left[\begin{array}{ccc}1&1\\0&0\end{array}\right]\) and \(B = \left[\begin{array}{ccc}0&0\\1&1\end{array}\right]\) are non-invertible matrices that can be added together to form an invertible matrix \(A+B =\left[\begin{array}{ccc}1&1\\1&1\end{array}\right]\).
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Identify the values of the variables. Give your answers in simplest radical form. HELP!
The value of the variables in the right triangle are as follows;
\(v = \frac{3\sqrt{2} }{2}\)\(w=\frac{3\sqrt{6} }{2}\)How to find the side of a right tringle?A right triangle is a triangle that has one of its angles as 90 degrees.
The side of a right triangle can be found by using trigonometric ratios.
Therefore, let's find the variable length of the right triangle as follows;
sin 30 = opposite / hypotenuse
sin 30 = v / 3√2
1 / 2 = v / 3√2
cross multiply
3√2 = 2v
divide both sides by 2
v = 3√2 / 2
Let's find the variable w.
cos 30 = adjacent / hypotenuse
cos 30 = w / 3√2
√3 / 2 = w / 3√2
cross multiply
√3 × 3√2 = 2w
3√6 = 2w
divide both sides by 2
w = 3√6 / 2
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Which set of transformations has been performed on triangle pqr to form triangle p’q’r’
Answer:
Dilation by a scale factor of fraction 1 over 2 followed by reflection about the x-axis.
Step-by-step explanation:
We are given to select the set of transformations that has been performed on triangle PQR to form triangle P'Q'R'.
From the graph, we note that
the co-ordinates of the vertices of triangle PQR are P(-4, 2), Q(0, 0) and R(2, 6).And, the co-ordinates of the vertices of triangle P'QR' are P'(-2, -1), Q'(0, 0) and R'(1, -3).
Let the dilation factor applied on triangle PQR to form triangle P'Q'R' be represented by d.
Then, we observe that
1/2 × P(-4,2)=(-2,1),
1/2 × Q(0,0)=(0,0),
1/2 × R(2,6)=(1,3).
So, the value of d will be
d = 1/2.
Again, to arrive at the vertices of triangle P'Q'R', we need to change the sign before the y co-ordinates ((x, y) ⇒ (x, -y)) of each new vertex hat we found after dilation.
That is.(-2, 1) ⇒ P'(-2, -1),
(0, 0) ⇒ Q'(0, 0),
(1, 3) ⇒ R'(1, -3).
This is reflection over X-axis.
Therefore, the set of transformation is given by
Dilation by a scale factor of fraction 1 over 2 followed by reflection about the x-axis.
) Quantifier negation.
Form the negation of the following statements. Then apply De Morgan’s law and/or conditional law, when
applicable. Negation should appear only within predicates, i.e., no negation should be outside a quantifier
or an expression involving logical connectives. Show all steps.
a) ∀x (P(x) ∧ R(x))
b) ∀y∃z(¬P(y) → Q(z))
c) ∃x (P(x) ∨ (∀z (¬R(z) → ¬Q(z))))
The negations of the given statements with the application of De Morgan's law and/or conditional law.
a) ∃x (¬P(x) ∨ ¬R(x))
De Morgan's law:
∃y ∀z(¬P(y) ∧ ¬Q(z))
b) ∃y ∀z(¬P(y) ∧ ¬Q(z))
The double negation:
∃y ¬∃z(P(y) ∨ Q(z))
c) ¬∃x (P(x) ∨ (∀z (¬R(z)) → (∀z ¬Q(z))))
The conditional law:
¬∃x (P(x) ∨ (∀z (¬R(z)) → (∀z ¬Q(z))))
Let's form the negation of the given statements and apply De Morgan's law and/or conditional law, when applicable:
a) ∀x (P(x) ∧ R(x))
The negation of this statement is:
∃x ¬(P(x) ∧ R(x))
Now let's apply De Morgan's law:
∃x (¬P(x) ∨ ¬R(x))
b) ∀y∃z(¬P(y) → Q(z))
The negation of this statement is:
∃y ¬∃z(¬P(y) → Q(z))
Using the conditional law, we can rewrite the negation as:
∃y ¬∃z(¬¬P(y) ∨ Q(z))
c) ∃x (P(x) ∨ (∀z (¬R(z) → ¬Q(z))))
The negation of this statement is:
¬∃x (P(x) ∨ (∀z (¬R(z) → ¬Q(z))))
Using the conditional law, we can rewrite the negation as:
¬∃x (P(x) ∨ (∀z (R(z) ∨ ¬Q(z))))
Applying De Morgan's law:
¬∃x (P(x) ∨ (∀z ¬(¬R(z) ∧ Q(z))))
Simplifying the double negation:
¬∃x (P(x) ∨ (∀z ¬(R(z) ∧ Q(z))))
Using De Morgan's law again:
¬∃x (P(x) ∨ (∀z (¬R(z) ∨ ¬Q(z))))
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What is the slope of y = x + 5?
Answer: look at the picture and I can’t solve y for you.
Step-by-step explanation: Hope this help :D
Which equation is equivalent to 2-2(3x - 1)=2
Answer:
it should be C
Step-by-step explanation:
I hope this helps! I am sorry if I am wrong!
Answer:
c
Step-by-step explanation:
2-2(3x-1)=2 2-6x+2=2 . 2-6x+2=2 4-6x=2 . -6x+4=2 . -6x+4-4=2-4 -6x=-2 -6x=-2 -6x/-6=-2/-6 x=1/3 .
witch values are solutions to the inequlity \(x^{2} \leq 8\)
Answer:
x ≤ \(\sqrt[2]{2}\)
Step-by-step explanation:
x² ≤ 8
\(\sqrt{x^{2} }\) ≤ \(\sqrt{8}\)
x ≤ \(\sqrt[2]{2}\)
What is the probability that a given student is on financial aid, given that he or she is a graduate?
rounded to the nearest percent
[ ? ] %
Answer:
72Step-by-step explanation:
\(\frac{1879}{2610} = 0.719 = 72\)
PLEASE HELP
Find the rule for each function table
Answer:
Input (x) is going up by one each time.
Output is going up 3 each time.
Answer: for input (x) add +1 to the number for output add +3 to the number
Step-by-step explanation:
Find the length of the unknown side of the right triangle with sides a, b, and c, where c is the hypotenuse.
Answer: The lengths of the triangles with the sides a b and c can be visualized as follows:
Using the Pythagorean theorem, we can construct the following equation related to the triangle shown:
\(\begin{gathered} a^2+b^2=c^2 \\ \\ \\ a=\sqrt{9} \\ b=? \\ c=9 \\ \\ \\ (\sqrt{9})^2+b^2=9^2 \\ \\ \\ b^2=9^2-(\sqrt{9})^2 \\ \\ b=\sqrt{81-9}=\sqrt{72}\approx8.4853 \end{gathered}\)¿De cuántas maneras es posible formar los grupos del torneo de liga de futbol de primera división? Recordemos que en la primera división del futbol en México participan 18 equipos, y para el torneo de la liga se forman dos grupos de cinco equipos y dos grupos de 4 equipos. Se sugiere que al resolverlo se vaya restando la cantidad de equipos que se han considerado para el primer grupo, después para el segundo grupo y así para cada grupo. Finalmente aplicar la regla del producto para encontrar las diferentes formas.
Note that his is solved using the principle of Combination, and there are 771, 891, 120 different ways to form the groups for the first division soccer league tournament in Mexico.
How is this so ?Let 's compute the number of ways to form the groups using combinations.
First group - 5 teams
C(18, 5) = 18! / (5! * (18-5)!) = 8568
Second group - 5 teams
C(13, 5) = 13! / (5! * (13-5)!) = 1,287
Third group - 4 teams
C(8, 4) = 8! / (4! * (8-4)!) = 70
Fourth group - 4 teams
C(4, 4) = 4! / (4! * (4-4)!) = 1
Now, applying the product rule
Total ways = 8568 x 1,287 x 70 x 1 = 771891120
Therefore, there are 771, 891, 120 different ways to form the groups for the first division soccer league tournament in Mexico.
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Translation
In how many ways is it possible to form the groups of the first division soccer league tournament? Let's remember that 18 teams participate in the first division of soccer in Mexico, and for the league tournament, two groups of five teams and two groups of 4 teams are formed. It is suggested that when solving it, the number of teams that have been considered for the first group be subtracted, then for the second group and so on for each group. Finally apply the product rule to find the different shapes.
write a similarity statement for the triangles picture. what is the value of x? show your work please !
Answer:x= 16.5
Step-by-step explanation:as both the triangles are similar, then
AB/ PQ=AC/ PR
16/24=18/(2x-6)
x= 16.5
A 799.99 television is selling for 13% off. Find the final price of the television if the sales tax is 6%