Answer:
B. 61
Step-by-step explanation:
Given that ∆PQR and PQS are congruent, it follows that their corresponding sides are of the same length.
Therefore,
\( RQ = SQ \)
\( 3x + 16 = 7x - 24 \)
Collect like terms
\( 16 + 24 = 7x - 3x \)
\( 40 = 4x \)
Divide both sides by 4
\( \frac{40}{4} = \frac{4x}{4} \)
\( 10 = x \)
\( x = 10 \)
Find PQ:
\( PQ = 2x + 41 \)
substitute x = 10 into the equation
\( PQ = 2(10) + 41 \)
\( PQ = 20 + 41 \)
\( PQ = 61 \)
(60 POINTS) The figure is transformed as shown in the diagram. Describe the transformation.
A) dilation, then reflection
B) reflection, then rotation
C) rotation, then translation
D) translation, then reflection
Answer:
The solution is rotation, then translation. The figure has been rotated about the origin by 90° and then translated 6 units to the right.
Angie wants to earn a 90% for her overall history grade. During the course
she has to take 5 tests. So far, she has only taken 4 tests. Her exam
scores for the tests are as follows: 85, 83, 99, 95. If Angie wants to ensure
she will receive a 90%, what is the minimum score on the 5th test that she
can receive?
Please help me with this
Answer:
z = 99
Step-by-step explanation:
\(\frac{z}{9}\) + 4 = 15 ( subtract 4 from both sides )
\(\frac{z}{9}\) = 11 ( multiply both sides by 9 to clear the fraction )
z = 99
In the function f(x), x is replaced with 3x.
f(x)=1/2sin(x)−4
What effect does this have on the graph of the function?
A. The graph is vertically stretched by a factor of 1//3.
B. The graph is vertically compressed by a factor of 1/3.
C. The graph is horizontally stretched by a factor of 1/3.
D. The graph is horizontally compressed by a factor of 1/3.
Just took the test, so the answer is...
D. Horizontally compressed by a factor of 1/3
\(f(x)=\frac{1}{2}sin(x)-4\) is horizontally compressed by a factor of 1/3 to get \(f(x)=\frac{1}{2}sin(3x)-4\)
Option D is correct
What is horizontal compression?
Note that:
If a function \(f(x)=Asin(x)\) is transformed to \(g(x)=Asin(kx)\), it means that the function f(x) is horizontally compressed by 1/k
Relating this rule to the given function \(f(x)=\frac{1}{2}sin(x)-4\)
If x is replaced with 3x, the function will become:
\(f(x)=\frac{1}{2}sin(3x)-4\)
This means that the graph of \(f(x)=\frac{1}{2}sin(x)-4\) is horizontally compressed by a factor of 1/3 to get \(f(x)=\frac{1}{2}sin(3x)-4\)
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En una ciudad de 5000 habitantes, la tasa diaria
de infección con un virus de la gripe varia directamente con el producto de
personas infectadas y el número de personas no infectadas. Cuando se han
infectado 1000 personas, la gripe se esparce a razón de 40 nuevos casos por día.
¿Para qué número de personas infectadas, la tasa diaria de infección es la
máxima?
According to the information, the maximum infection rate is: k * 2500 * (5000 - 2500) = 6250k = 40
How to calculate for what number of infected people, the daily infection rate is the maximum?To address this problem, we can use the law of the infection rate, which states that the infection rate is directly proportional to the product of the number of people infected and the number of people not infected. Therefore, we can write:
infection rate = k * (infected people) * (uninfected people)where "k" is a constant of proportionality. Since we want to find the number of people infected that produces the maximum infection rate, we can consider the infection rate as a function of the variable "x" representing the number of people infected. Therefore, we can write:
infection rate = k * x * (5000 - x)To find the value of "x" that maximizes the infection rate, we can derive this function and set the derivative equal to zero:
d(infection rate)/dx = k * (5000 - 2x) = 0This implies that 5000 - 2x = 0, and therefore:
x = 2500Therefore, the number of infected people that produces the maximum daily rate of infection is 2,500.
However, we must verify that this result is consistent with the information given in the problem. We know that when there are 1,000 people infected, the flu spreads at the rate of 40 new cases per day. Therefore, if we add 1,500 more infected people (for a total of 2,500), the infection rate would be:
infection rate = k * 2500 * (5000 - 2500) = 6250kIf the infection rate is 40 new cases per day, we have:
40 = 6250kwhich implies that:
k = 0.0064Therefore, the maximum infection rate is:
maximum infection rate = k * 2500 * (5000 - 2500) = 6250k = 40Learn more about infection in: https://brainly.com/question/29850356
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Answer the questions below. I need answer for letter (c)
Answer:
C is the answer, please choose the letter C that's the answer
You are at a restaurant and your bill comes to $28.52. You need to add the sales tax which is 6%. You have one $20 bill, two $10 bills, one $5 bill, five $1 bills, and five pennies.
How much is your total bill including tax?
How much should you give the server so you do not get back any pennies?
What denominations will you use for this?
Answer:
$30.23 is the total bill including tax. You should give the server one $20 bill, one $10 bill, one $1 bill, and 3 pennies.
Step-by-step explanation:
Answer:
Step-by-step explanation:
28.52*6%=1.71 tax
28.52+1.71= 30.23 total
20+20+5+5+.05= 50.05
31.03 to the server; 1 twenty, 1 ten, 1 one and 3 pennies
help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help
Answer:
41/200
This is solved and put in standard form
Calculate the bearing of Y from X
Answer:
074°
Step-by-step explanation:
the bearing of Y from X is the measure of the angle from the north line (N) at X in a clockwise direction to Y , that is ∠ NXY
∠ NXY = 180° - 106° = 74°
the 3- figure bearing of Y from X is 074°
I will make brainlyest.
Answer:
x + 46
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define expression
4(-8x + 5) - (-33x - 26)
Step 2: Simplify
Distribute: -32x + 20 + 33x + 26Combine like terms (x): x + 20 + 26Combine like terms (Z): x + 46Which polynomial is prime?
O 3x³ + 3x² - 2x - 2
O 3x³ − 2x² + 3x − 4
-
O
4x³ + 2x² + 6x + 3
O
4x³+4x²-3x - 3
Answer:
B
Step-by-step explanation:
a prime polynomial is one which does not factor into 2 binomials.
its only factors are 1 and itself
attempt to factorise the given polynomials
3x³ + 3x² - 2x - 2 ( factor the first/second and third/fourth terms )
= 3x²(x + 1) - 2(x + 1) ← factor out common factor (x + 1) from each term
= (x + 1)(3x² - 2) ← in factored form
--------------------------------------------------
3x³ - 2x² + 3x - 4 ( factor the first/second terms
= x²(3x - 2) + 3x - 4 ← 3x - 4 cannot be factored
thus this polynomial is prime
----------------------------------------------------
4x³ + 2x² + 6x + 3 ( factor first/second and third/fourth terms )
= 2x²(2x + 1) + 3(2x + 1) ← factor out common factor (2x + 1) from each term
= (2x + 1)(2x² + 3) ← in factored form
-------------------------------------------------
4x³ + 4x² - 3x - 3 ( factor first/second and third/fourth terms )
= 4x²(x + 1) - 3(x + 1) ← factor out common factor (x + 1) from each term
= (x + 1)(4x² - 3) ← in factored form
--------------------------------------------------
the only polynomial which does not factorise is
3x³ - 2x² + 3x - 4
Write an equation of the form y=a sin b x or y=a cos b x to describe the graph below.
Greetings from Brasil...
In a trigonometric function of Cosine, we have:
F(X) = ±A ± B.COS(MX + N)where
A = move the graph up or down
B = change the amplitude
M = change period
N = move the graph left or right without distorting it
According to the statement, we don't have A and N, so
F(X) = ± B.COS(MX)
According to the graph presented, we have:
B = amplitude = 2.5 = 5/2
period = π
detail that
Period = 2π/M
π = 2π/M ⇒ M = 2
As B = 5/2 and M = 2, then
F(X) = (5/2)COS(2X)(I used the cosine function, because in X = 0 Y will have a non-zero value, as we can see in the graph)
Mark goes to the grocery store and purchases items for $0.58, $1.25, $1.99, and $12.40. If Mark gives the cashier $20.00, how much change will he get back?
A furniture factory makes 250 tables each day. Create an equation that can be used to find the total number of tables made, y, after x days.
Answer:
The equation would be y=250x
Step-by-step explanation:
They are making 250 tables a day (x)
we put the x next to the 250 because that number will change everyday.
y would equal our total
Drag the tiles to the correct locations on the image. Not all the tiles will be used.
The figure is a square, with side lengths as shown.
4√5mm
What are the perimeter and area of the square
The perimeter of the square is 16√5 mm, and the area of the square is 80 mm².
To calculate the perimeter and area of the square, we can use the formulas:
Perimeter = 4 * side length
Area = side length * side length
Substituting the given side length of 4√5mm into the formulas, we have:
Perimeter = 4 * 4√5mm = 16√5mm
Area = (4√5mm) * (4√5mm) = 16 * 5mm = 80mm²
Therefore, the perimeter of the square is 16√5mm, and the area of the square is 80mm².
Please note that the values are based on the provided side length of 4√5mm. If there are any changes to the side length, the perimeter and area will differ accordingly.
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The perimeter of the square is 16√5 mm, and the area of the square is 80 mm².
I took the test on plato.
\(\frac{2-i\sqrt{3} }{2+i\sqrt{3} }\)
Solve in standard complex form, i = imaginary number
Answer:
Step-by-step explanation:
\(\frac{2-\iota\sqrt{3} }{2+\iota\sqrt{3} } =\frac{2-\iota\sqrt{3} }{2+\iota\sqrt{3} }\times \frac{2-\iota \sqrt{3} }{2-\iota \sqrt{3} } \\=\frac{(2-\iota\sqrt{3} )^2}{2^2-(\iota\sqrt{3} )^2} \\=\frac{4+3 (\iota)^2-4\iota \sqrt{3}}{4-3\iota^2} \\=\frac{4-3-4\iota\sqrt{3}}{4+3} \\=\frac{1}{7} -\frac{4 \sqrt{3}}{7} \iota\)
Question 9 of 60
Which symbol correctly compares the fractions below? 3/7 ? 4/14
O A. =
B. >
O C. <
OD. None of these are correct.
SUBMIT
find the coordinate of point C that is 7/8 of the distance from M to J
Using proportions, and considering that the points are M(x1,y1) and J(x2,y2), the coordinates of C are given by:
C = [7/8(x2 - x1), 7/8(y2 - y1)]
What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.
We consider that the points are M(x1,y1) and J(x2,y2), hence the point that is at 7/8 of the distance between them is found applying the proportion of 7/8, that is:
C = [7/8(x2 - x1), 7/8(y2 - y1)]
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Mr Moon bought a coffee and a sandwich every day for 100 days
from his local shop. In total, he spent £783.68. How much is one
coffee and sandwich? Round your answer to 2 decimal places.
Answer:
7.84
Step-by-step explanation:
783.68
\(783.63 \div 100 = 7.8363\)
Approx to 7. 84
Please answer number 9 I’ll give brainliest
Answer:
2/3 or 66.7%
Step-by-step explanation:
there are 6 possible options. 2 of them are red. 6 options minus 2 = 4=4/3=2/3
Determine the general solution of 5 tan 0-6 cos 0 = 0
The general solution for the equation 5tan(θ) - 6cos(θ) = 0 is:
θ = sin⁻¹(2/3) + nπ, where n is an integer.
To determine the general solution of the trigonometric equation 5tan(θ) - 6cos(θ) = 0, we can use algebraic manipulation and trigonometric identities to simplify and solve for θ.
Starting with the given equation:
5tan(θ) - 6cos(θ) = 0
First, we can rewrite the tangent function in terms of sine and cosine:
5(sin(θ)/cos(θ)) - 6cos(θ) = 0
Next, multiply through by cos(θ) to eliminate the denominator:
5sin(θ) - 6cos²(θ) = 0
Using the identity sin²(θ) + cos²(θ) = 1, we can express cos²(θ) as 1 - sin²(θ):
5sin(θ) - 6(1 - sin²(θ)) = 0
Expanding and rearranging terms:
5sin(θ) - 6 + 6sin²(θ) = 0
Rearranging the equation:
6sin²(θ) + 5sin(θ) - 6 = 0
Now, we have a quadratic equation in terms of sin(θ).
We can solve this quadratic equation by factoring or using the quadratic formula.
However, since this equation is not easily factorable, we will use the quadratic formula:
sin(θ) = (-b ± √(b² - 4ac)) / 2a
For our equation:
a = 6, b = 5, c = -6
Plugging these values into the quadratic formula and simplifying, we get:
sin(θ) = (-5 ± √(5² - 4(6)(-6))) / (2(6))
sin(θ) = (-5 ± √(25 + 144)) / 12
sin(θ) = (-5 ± √169) / 12
sin(θ) = (-5 ± 13) / 12.
This gives us two possible solutions for sin(θ):
sin(θ) = (13 - 5) / 12 = 8/12 = 2/3
sin(θ) = (-13 - 5) / 12 = -18/12 = -3/2
Since the range of the sine function is -1 to 1, the second solution (-3/2) is not valid.
Now, to find the values of θ, we can use the inverse sine function (sin⁻¹) to solve for θ:
θ = sin⁻¹(2/3)
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2540mm converted into cm
Answer:
Step-by-step explanation:
254cm
\(\huge\text{Hey there!}\)
“\(\large\textsf{2,540mm converted to into [blank] cm}\)”
\(\large\textsf{= 2,540 millimeters into [blank] centimeters}\)
\(\large\textsf{= 2,540 millimeters into }\mathsf{\dfrac{2,540}{10}} \large\textsf{ centimeters}\)
\(\mathsf{\dfrac{2,540\div 10}{10\div10}}\\\\\mathsf{= \dfrac{250}{1}}\\\\\mathsf{= 250\div 1}\\\\\mathsf{= 250}\)
\(\large\textsf{= 2,540 millimeters into [250] centimeters}\)
\(\huge\boxed{\textsf{Therefore, your answer SHOULD be: 250cm}}\huge\checkmark\)
\(\huge\text{Good luck on your assignment \& enjoy your day!}\)
~\(\frak{Amphitrite1040:)}\)
If Zoe and Bijou can paint a room in 3.733 hours and Zoe, working alone,
can paint the room in 7 hours, how long will it take Bijou to paint the entire
mural by herself?( round to the nearest integer)
A student is graduating in 12 months and
receives and unsubsidized Stafford loan with
a 6 month grace period from graduation.
The loan is a total of $8,465 at 5.9%
compounded
monthly.
FV
Rate
Nper
Pmt
Pv
Type
The future value (FV) of the loan after 12 months, after the monthly compounding at an interest rate of 5.9%, is about $8977.98.
What is the future value?For one to be able to calculate the future value (FV) of the loan, one need to use the formula for compound interest which is:
FV = PV x (1 + r)ⁿ
Where:
PV = Present value (loan amount)
= $8,465
r = Monthly interest rate
= 5.9% / 12
= 0.004917
n = Number of compounding periods
= 12 (months)
Pmt = Monthly payment (unknown)
So by Using these values, one can calculate the future value (FV) of the loan and thus:
FV = $8,465 x (1 + 0.004917)¹²
= $8,465 x 1.0606
= $8977.98
So, the future value (FV) of the loan after 12 months, as at the monthly compounding at an interest rate of 5.9%, is about $8977.98.
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Which graph displays points that correspond to the x and y values in the table?
hm this is weird, i thought i answered the question. or maybe they're two different questions? line graph because i said so. i know im so helpful
2/5 of employees in a company drive to work, 1/3 travel by bus and the rest walk. 1. Find the fraction of who walk.
Answer:
4/15
Step-by-step explanation:
2/5 drive
1/3 bus
and rest walk
fraction of those who walk is 1-(2/5+1/3)
2/5+1/3=(6+5)/15=11/15
15/15-11/15=4/15
HURRY IM GIVING 20 PTSSSSS
Answer:
(-5, 2)
Step-by-step explanation:
(-5, y)
-5 is in the x place, and so replace x with -5
-5 - 5y = -15
-5y - 5 = -15
-5y - 5 (+5) = -15 (+5)
-5y = -10
-5y/(-5) = -10/(-5)
y = 2
(-5, 2) is the final answer.
In the missing box, put 2.
In a survey, people were asked whether they like baseball or whether they like hockey. Here are the results: Likes hockey Doesn’t like hockey Likes baseball 12 18 Doesn’t like baseball 14 6 What value is missing to convert the two-way table to a two-way relative frequency table? Likes hockey Doesn’t like hockey Likes baseball 0.24 0.36 Doesn’t like baseball 0.28
The missing value 'x' in the two-way relative frequency table is 0.36.
To convert the two-way table to a two-way relative frequency table, we need to calculate the relative frequencies for each category. Relative frequency is calculated by dividing the frequency of a particular category by the total count in that row or column.
Let's denote the missing value as 'x'. To find the value of 'x', we need to ensure that the sum of the relative frequencies in each row and each column adds up to 1.
First, let's calculate the relative frequencies for each category:
Likes hockey: The total count in this row is 12 + 18 = 30.
Relative frequency of "Likes hockey" = 12/30 = 0.4
Relative frequency of "Doesn't like hockey" = 18/30 = 0.6
Likes baseball: The total count in this column is 12 + 14 = 26.
Relative frequency of "Likes baseball" = 12/26 ≈ 0.4615
Relative frequency of "Doesn't like baseball" = 14/26 ≈ 0.5385
To ensure that the relative frequencies add up to 1, we can set up the following equations:
0.4 + x = 1 (sum of relative frequencies in the "Likes hockey" row)
0.4615 + 0.5385 + x = 1 (sum of relative frequencies in the "Likes baseball" column)
Simplifying the equations, we have:
x = 0.6 (1 - 0.4) = 0.6 * 0.6 = 0.36
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peter weighs is 105 kg he wants to lose 500 g per week how many weeks will it take for him to have a mass of 90 kg ?
Answer:
it will take him 30 weeks
Step-by-step explanation:
2 weeks = 1 kilogram lost
105-90=15
1 x 15 = 15
2 x 15 = 30
expressions or equations.
Select all the ways to name 14.09.
a. 1,409 hundredths
b. 1 ten + 409 hundredths
c. 1 ten + 4 ones + 9 tenths
d. 140 tenths +9 hundredths
e. 1,409 tenths