Answer:
x = 4
Step-by-step explanation:
assuming you require to find the value of x
Δ ADE and Δ ACB are similar ( by the AA postulate )
then the ratios of corresponding sides are in proportion, that is
[tex]\frac{AD}{AC}[/tex] = [tex]\frac{AE}{AB}[/tex] ( substitute values )
[tex]\frac{x}{x+x-2}[/tex] = [tex]\frac{x+2}{x+2+x -1}[/tex]
[tex]\frac{x}{2x-2}[/tex] = [tex]\frac{x+2}{2x+1}[/tex] ( cross- multiply )
(2x - 2)(x + 2) = x(2x + 1) ← expand left side using FOIL
2x² + 2x - 4 = 2x² + x ( subtract 2x² + x from both sides )
x - 4 = 0 ( add 4 to both sides )
x = 4
Write the EXPLICT equation for the arithmetic sequence below: 12, 10, 8, 6
aₙ = 14- 2n is the EXPLICT equation for the arithmetic sequence below: 12, 10, 8, 6
What is Sequence?A sequence is an enumerated collection of objects in which repetitions are allowed and order matters
this is an arithmetic sequence whose n th term ( explicit formula) is
aₙ = a + (n - 1 )d
where d is the common difference and a the first term
The given sequence is 12,10,8,6
twelve comma ten comma eight comma six
d=10-12=-2
a=12
Apply in explicit formula
aₙ = 12+ (n - 1 )(-2)
aₙ = 12-2n +2
aₙ = 14- 2n
Hence aₙ = 14- 2n is the EXPLICT equation for the arithmetic sequence below: 12, 10, 8, 6
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Find one terminating decimal and one repeating decimal between -1/2and -1/3.
one example of terminating decimal and one repeating decimal between -1/2and -1/3
terminating decimal = -2/5
repeating decimal = -3/11
What is terminating decimal?A decimal with an end digit is referred to as a terminating decimal. It is a decimal with a limited number of digits.
examples of terminating decimal are
0.5 = 1/20.25 = 1/40.4 = 2/5 and many moreWhat is repeating decimal?When a number's digits are periodic and its indefinitely repeated portion is not zero, the representation of that number as a decimal is said to be repeating or recurring.
Examples of a repeating decimal are
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a baker is deciding how many batches of muffins to make to sell in his bakery. he wants to make enough to sell to everyone and no fewer. through observation, the baker has established a probability distribution. what is the probability the baker will sell exactly one batch? (find p(x
Form the given probability distribution, the probability of selling exactly one batch by baker is equal to 0.10.
As given in the question,
Probability distribution established by baker :
x : 1 2 3 4
P(x) : 0.10 0.30 0.40 0.20
As it is give that number of batches made by baker to sell muffins .
For selling 1 batch x = 1.
For selling 2 batch x = 2.
For selling 3batch x = 3.
For selling 4 batch x = 4
Probability of selling exactly one batch by baker is given by when x =1
Probability of x = 1 is given by :
P( x = 1 ) = 0.10
Therefore, form the given probability distribution, the probability of selling exactly one batch by baker is equal to 0.10.
The complete question is :
A baker is deciding how many batches of muffins to make to sell in his bakery. He wants to make enough to sell every one and no fewer. Through observation, the baker has established a probability distribution. x P(x) 1 0.10 2 0.30 3 0.40 4 0.20 What is the probability the baker will sell exactly one batch.
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Which of the functions is represented by the graph
O f(x)=2x²+3
O f(x) = -x² + 3
O f(x) =1/2x² + 3
O f(x) = -1/2x +3
Number 1
Step-by-step explanation:
Number 1 it is a good answer
I WILL GIVE YOU 25 POINTS JUST PLEASE HELP ASAP! Wilma works at a bird sanctuary and stores birdseed in plastic containers. She has 3 small containers that hold 8 pounds of birdseed each and 8 large containers that hold 12 pounds of birdseed each. Each container was full until she used 6 pounds of birdseed. She wants to put some of the remaining birdseed into 23 bird feeders that can hold 2 pounds each. How much birdseed does she have left over?
Answer:
the amount of birdseed leftover is 32
Step-by-step explanation:
A regular polygon is shown. 12 sided regular polygon Determine the measure of one of its angles.
The measure of one of its angle is 150°
A Polygon is a two-dimensional closed figure made up of line segments (not curves). Polygon is a combination of two words, poly (which means many) and gon (which means shape) (means sides). To create a closed figure, at least three line segments must be connected end to end.
Given that
12 sided regular polygon
We can use the following formula to calculate the total number of degrees in any shape:
(n−2)⋅180
[Where n = number of sides]
(12−2)⋅180
(10)⋅180
=1800
So a 12-sided polygon has 1800 degrees. To calculate the measure of one angle, divide the total number of degrees (1800) by the number of sides, n.
(1800/12) = 150°
Therefore the measure of one of its angle is 150°
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The data in the table describes the preferred type of exercise of student athletes.
Cycling Running Row Totals
Male 0.22 0.32 0.54
Female 0.15 0.31 0.46
Column Totals 0.37 0.63 1.00
What is the conditional relative frequency that a female prefers running? Round your answer to two decimal places.
0.36
0.49
0.58
0.67
The conditional relative frequency that a female prefers running is 0.36
What is Statistics?Statistics is a branch of applied mathematics that involves the collection, description, analysis, and inference of conclusions from quantitative data
The specific number (females prefer cycling = 0.15) and the fitting total. There are 2 possibilities for that total :
all females
all people preferring cycling
the way it was phrased I would say the reference is all females.
the conditional relative frequency is then
0.15 / 0.46 = 0.326
Hence the conditional relative frequency that a female prefers running is 0.36
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Answer:
Step-by-step explanation:
Dont listen to the above the answer is acually 58
a rectangular container with a square base, an open top, and a volume of 4,000 cm3 is to be made. what is the minimum surface area for the container? enter only the minimum surface area, and do not include units in your answer.
A rectangular container with a square base, an open top, and a volume of 4,000 cm³. The minimum surface for the container is 1,200 cm².
The result is obtained by using the derivative.
Determine the minimum surface areaThese are the specified parameters:
Volume container is 4,000 cm³.
Let side of square base = a, and height of the container = h, so:
Volume = a × a × h
4,000 = a² h
h = [tex]\displaystyle \frac{4000}{a^2}[/tex] ... (1)
Surface area with a square base, an open top is area of a square + 4 times the vertical side.
Surface area (A) = a² + 4ah
Substitute the value of h = [tex]\displaystyle \frac{4000}{a^2}[/tex] into surface area.
A = a² + 4ah
A = a² + 4a ([tex]\displaystyle \frac{4000}{a^2}[/tex])
A = a² + [tex]\displaystyle \frac{16000}{a}[/tex]
So that the surface area is minimal, when the derivative and equate to 0.
A = a² + 16000 a⁻¹
A' = 0
2 a²⁻¹ + (-1) 16000 a⁻¹⁻¹
2a - 16000 a⁻² = 0
2a - [tex]\displaystyle \frac{16000}{a^2}[/tex] = 0
2a = [tex]\displaystyle \frac{16000}{a^2}[/tex]
2a³ = 16000
a³ = [tex]\displaystyle \frac{16000}{2}[/tex]
a³ = 8000
a = ∛8000
a = 20
Surface area with a square base, an open top.
Substitute the value of a = 20
A = a² + [tex]\displaystyle \frac{16000}{a}[/tex]
A = 20² + [tex]\displaystyle \frac{16000}{20}[/tex]
A = 400 + 800
A = 1200
The minimum surface for the container is 1,200 cm².
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There is a 10% off sale on laptops. If someone saves $35 on a laptop, what was its original cost
Answer: $350
Reason: 10% of $350 is $35.
a local hamburger shop sold a combined total of 520 hamburgers and cheeseburgers on tuesday they were 70 more cheeseburgers sold than hamburgers how many hamburgers were sold on tuesday
If they were 70 more cheeseburgers sold than hamburgers. The number of hamburgers that were sold on Tuesday is 225.
How to find the hamburgers sold?Total of 603 hamburgers and cheeseburgers = x+y= 520
70 more cheeseburgers than hamburgers = y=x+70
Hence,
x+y= 502
y=x+70
Substitution
x+(x+70)= 520
2x+70 = 520
-70 -70
2x= 450
2 2
x=225 hamburgers
Number of cheeseburgers
Substitute x in either equation.
y=x+ 70
y=225 +70
y=295 cheeseburgers
Therefore 225 hamburgers was sold.
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This is a calculus question please make sure that all steps are shown and that everything is shown clearly i am terrible at calculus so please help .
Thank you
Answer:
a) [tex]\displaystyle{\dfrac{dG}{dV_{\text out}}=\dfrac{20}{V_{\text out}\ln 10}}[/tex]
b) [tex]\displaystyle{\dfrac{d^2G}{dV_\text{out}^2} = -\dfrac{20}{V_\text{out}^2\ln 10}}[/tex]
Step-by-step explanation:
From the given equations to find, we are differentiating function G with respect to V out. Therefore, we will be only using the equation (6):
[tex]\displaystyle{G=20\log (10V_{\text out})}[/tex]
Here’s a fresh-up reminders for logarithmic differentiation formula:
[tex]\displaystyle{f(V)=a\log_b V \to f'(x)=\dfrac{a\cdot V'}{V\ln b}}[/tex]
Note that V' means to derive or differentiate the V-term
Therefore, in this scenario, our values of term are:
a = 20b = 10 (Since logarithm base is not shown, it’s always assumed to be common logarithm)V = 10V outTherefore, we can apply differentiation formula:
[tex]\displaystyle{\dfrac{dG}{dV_{\text out}}=\dfrac{20\cdot \dfrac{d(10V_{\text out})}{dV_{\text out}}}{10V_{\text out}\ln 10}}[/tex]
Simplify:
[tex]\displaystyle{\dfrac{dG}{dV_{\text out}}=\dfrac{20\cdot 10}{10V_{\text out}\ln 10}}\\\\\displaystyle{\dfrac{dG}{dV_{\text out}}=\dfrac{20}{V_{\text out}\ln 10}}[/tex]
And we have finished the part a. On part b, we just differentiate the answer from part a again, the second part is to obtain the second derivative which is to derive the first derivative. Therefore:
[tex]\displaystyle{\dfrac{d^2G}{dV_{\text out}^2} = \dfrac{d\left(\dfrac{20}{V_{\text out}\ln 10}\right)}{dV_{\text out}}}[/tex]
First, separate the constant every time when you have to differentiate a function:
[tex]\displaystyle{\dfrac{20}{\ln 10}\cdot \dfrac{1}{V_{\text out}}}[/tex]
Differentiate 1/V out: recall the formula of fraction:
[tex]\displaystyle{f(V)=\dfrac{1}{V} =V^{-1} \to f'(x)=-V^{-2} = -\dfrac{1}{V^2}[/tex]
The formula above is derived from power rules formula where:
[tex]\displaystyle{f(V)=V^n = nV^{n-1}}[/tex]
Therefore, from the function of V out:
[tex]\displaystyle{\dfrac{d^2G}{dV_\text{out}^2} = \dfrac{20}{\ln 10} \cdot \left(\dfrac{1}{V_\text{out}}\right)'}\\\\\displaystyle{\dfrac{d^2G}{dV_\text{out}^2} = \dfrac{20}{\ln 10} \cdot (V_\text{out})^{-1}}\\\\\displaystyle{\dfrac{d^2G}{dV_\text{out}^2} = \dfrac{20}{\ln 10} \cdot (-V_\text{out})^{-2}}\\\\\displaystyle{\dfrac{d^2G}{dV_\text{out}^2} = \dfrac{20}{\ln 10} \cdot \left(-\dfrac{1}{V_\text{out}^2}\right)}[/tex]
Simplify to latest as we get:
[tex]\displaystyle{\dfrac{d^2G}{dV_\text{out}^2} = -\dfrac{20}{V_\text{out}^2\ln 10}}[/tex]
Please let me know if you have any questions!
modeling real life an animal shelter director is planning to build a rectangular playpen. the playpen must have a perimeter of 150 feet and an area of at least 1000 square feet. describe the possible lengths of the playpen. the length must be at least feet and at most feet.
For the given rectangular playpen, the perimeter of rectangular playpen is 150 feet and its area is at least 1000 square feet. then the length of the rectangular playpen is equal to at least 17.35 feet and at most 57.66 feet.
As given in the question,
For the given rectangular playpen,
Perimeter of rectangular playpen is equal to 150 feet .
Area of the rectangular playpen is equal to at least 1,000 squared feet .
Area = length × width
Let x be the length of the rectangular playpen .
Then its width is equal to 1000 / x.
Substitute the value of length and width in perimeter we get,
Perimeter of rectangular playpen = 2 ( length + width )
⇒ 150 = 2 [ x + (1,000/x)]
⇒ 150 / 2 = ( x² + 1,000 ) / x
⇒ x² + 1000 = 75x
⇒ x² -75x + 1,000 =0
Simplify quadratic equation using discriminant we get,
x = [ -( -75) ± √(-75)² - 4(1) (1,000) ] / 2(1)
⇒ x = ( 75 ± √5625 - 4000) /2
⇒ x = (75 ± 40.31) / 2
⇒ x = 57.66 or 17.35
Therefore, for the given rectangular playpen, the perimeter of rectangular playpen is 150 feet and its area is at least 1000 square feet. then the length of the rectangular playpen is equal to at least 17.35 feet and at most 57.66 feet.
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Exercise equipment advertised at $2200 is sold on sale for $1950. What percentage discount is this?
Percentage discount is 11.36%
Given in question,
Marked price = MP = $2200
Selling price = SP = $1950
Discount = D
= MP - SP
= 2200 - 1950
= 250
Discount % = (D/MP)*100
= (250/2200)*100
= 250/22
= 11.36
Hence, discount percent is 11.36%.
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I need Help ASAP!!!! PLease help!!!
The new coordinate after the given composite translation (x,y) → (x-5,y+5) will be (x+3,y+12).
What is the transformation of a graph?Transformation is rearranging a graph by a given rule it could be either increment of coordinate or decrement or reflection.
Reflection is a mirror image of a graph about any axis.
If we reflect any graph about y = x then the coordinate will interchange it that (x,y) → (y,x).
As per the given translation rule,
(x,y) → (x+8,y+7)
The next translation is (x,y) → (x-5,y+5)
The resultant translation will be,
(x,y) → (x+8,y+7) to (x+8-5,y+7+5)
⇒ (x+3,y+12)
Hence "The new coordinate after the given composite translation (x,y) → (x-5,y+5) will be (x+3,y+12)".
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Help please I don't know what to do on this and it's urgent I need this in 20 min.
Answer:
1) 112°
3) 55°
4) 51°, complementary angles
Step-by-step explanation (question one):
3x +10 +2x = 180
3x +10 +2x -10 = 180 -10
3x + 2x = 170
5x = 170
x = 34
3(x)+10 = angle ABD
3(34)+10 = angle ABD
102+10 = angle ABD
angle ABD = 112°
Step-by-step explanation (question two):
180 -70 = 2x
110 = 2x
55 = x
angle SQT = 55°
Step-by-step explanation (question three):
Since it's a right angle, we can simply subtract.
90 -39 = 51
angle b = 51°
I wish you luck on your homework!
2 1/2x + 1/4 + 3/4x = 1/8
[tex]\frac{5}{2}x+\frac{1}{4} +\frac{3}{4} x=\frac{1}{8} \\\\\frac{5}{2}(8)x+\frac{1}{4} (8)+\frac{3}{4}(8) x=\frac{1}{8}(8)\\20x+2+6x=1\\20x+6x=1-2\\26x=-1\\\frac{26x}{26} =\frac{-1}{26} \\x=-\frac{1}{26}[/tex]
There are four consecutive odd integers such that five times the second number minus twice the fourth number is the third number subtracted by 252
If there are four consecutive odd integers such that five times the second number minus twice the fourth number is the third number subtracted by 252 then the four consecutive integers are -2, -3, -4, -5 (or) -2, -1, 0, 1.
What are consecutive integers?
Whole numbers that follow each other without gaps are known as consecutive integers.
For example, the numbers 15, 16, and 17 are all consecutive integers.
If 'n' is an integer, then the following consecutive integers begin at n, n+1, n+2, n+3, and so on.
Let x be the 1st of the four consecutive integers.
the other three consecutive integers could be
(x + 1) , (x + 2), and (x + 3).
By using the given conditions, we get
From the question,
(x + 1) = (5 * (x + 2)) - (x + 3)
Expand, and subtract like terms:
x + 1 = 5x + 10 - x - 3.
Simplifying the above expression, we get
x + 1 = 4x + 7.
3x = -6.
x = -2.
Hence, the four consecutive integers are -2, -3, -4, -5 (or) -2, -1, 0, 1.
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A dressmaker sells a shirt for $75 she makes a 25% profit how much did it cost her to make the shirt?
Answer:
Explanation:
Selling price:$75
Profit made:25%
Cost price:100/100-25
100/75
1.3333
y = -4 and y = 7 determine if the equation is parallel, perpendicular, or neither.
Answer: Neither
Step-by-step explanation:
An employee opens a credit union account and deposits
$90 at the end of each month. After two years, the account
contains $2,177.48. What annual nominal rate compounded
monthly has the account earned?
Annual nominal rate compounded monthly has the account earned is 0.84% .
In the question ,
it is given that ,
An employee opened a credit union account ,
amount deposited each month (PMT) = $90
number of period (n) = 2 years = 24 months
Future value after 2 years (FV) = $2177.48
let the rate of interest compounded monthly has the account earned be "r"
we know that the future value formula is
Future Value = PMT× [tex](\frac{(1+\frac{r}{12})^{n} -1 }{\frac{r}{12} } )[/tex]
Substituting the value of n = 24 , PMT = 90 and FV = 2177.48 in the Future Value Formula ,
we get ,
2177.48 = 90 × [tex](\frac{(1+\frac{r}{12})^{24} -1 }{\frac{r}{12} } )[/tex]
[tex](\frac{(1+\frac{r}{12})^{24} -1 }{\frac{r}{12} } )[/tex] = 2177.48/90
( 1 + r/12 )²⁴ -1 = (r/12) × 24.194
Solving further , we get
r = 0.0084
that means rate is = 0.84%
Therefore , Annual nominal rate compounded monthly has the account earned is 0.84% .
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At 99°F, a certain insect chirps at a rate of 68 times per minute, and at 105°F, they chirp 80 times per minute. Write an equation in slope-intercept form that represents the situation.
Answer:y=mxb
Step-by-step explanation:
Answer:
The equation is: y = 5x - 268
3. Look at the following points.
(4, 0), (3,-1), (6, 3), (2,-4)
Which are solutions to y = x - 4? Choose all correct answers.
(6,3)
(4,0)
(3,-1)
(2,-4)
The coordinates (4, 0) and (3, -1) represents the solution of the function f(x).
According to the question -
y = f(x) = x - 4
Case 1 : P(4, 0)
0 = 4 - 4 = 0
P (4, 0) represents a solution
Case 2: P (3, -1)
-1 = 3 - 4 = -1
P (3, -1) represents a solution
PLEASE HELP WILL MARK BRAINLIEST
which representation corresponds to the equation y=3x+1
The representation of equation y = 3x + 1 is as shown below.
The correct answer is option (D)
In this question, we have been given an equation y = 3x + 1
We need to find the correct representation of given equation.
For x = 0,
y = 3(0) + 1
y = 1
For x = 2,
y = 3(2) + 1
y = 7
for x = -1,
y = 3(-1) + 1
y = -2
This means, the options A, B and C are incorrect.
Therefore, the representation of equation y = 3x + 1 is as shown below.
The correct answer is option (D)
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HELPPPP
All of the following relations represent functions, except which?
Responses
{(1, 2), (-2, 2), (5, 2), (4, 2)}
{(7, 8), (7, 9), (7, 10), (7, 11)}
{(0,0)}
{(1, 4), (-2, 8), (2, 2), (4, 9)}
PLEASE SHOW STEP BY STEP!
{(1, 4), (-2, 8), (2, 2), (4, 9)} it is a function as every input has a unique output. Therefore, option B is not a function.
The given coordinate points are {(1, 2), (-2, 2), (5, 2), (4, 2)}.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
A) {(1, 2), (-2, 2), (5, 2), (4, 2)}
It is a function as every input has a single output.
So, 1, -2, 5 and 4 are the elements of the domain of the given relation.
Here domain ={1, -2, 5, 4} and range ={2}
B) {(7, 8), (7, 9), (7, 10), (7, 11)}
Since the element 7 corresponds to four different images i.e., 8, 9, 10 and 11. So, this relation is not a function.
C) {(0,0)}
It is a function as every input has a single output.
So, 0 is the element of the domain of the given relation.
Here domain ={0} and range ={0}
D) {(1, 4), (-2, 8), (2, 2), (4, 9)}
It is a function as every input has a unique output.
So, 1, -2, 2 and 4 are the elements of the domain of the given relation.
Here domain ={1, -2, 2, 4} and range ={4, 8, 2, 9}
{(1, 4), (-2, 8), (2, 2), (4, 9)} it is a function as every input has a unique output. Therefore, option B is not a function.
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Which statements are ALWAYS TRUE? (SELECT ALL THAT APPLY)
A rhombus is a parallelogram.
A square has congruent diagonals.
A square is a rectangle.
A parallelogram has four congruent sides.
Answer:
statement 1 is true
statement 2 is true
statement 3 is false
statement 4 is false
statement 5 is also false cause parallelogram has 2 pair of congruent sides
y = x² − 1
-7=-x²-y
What are the solutions?
Explanation: Please give brainly if it's right!
First move all the x and y values on one side, and the constants on the other:
-x² + y = − 1
-x² - y = -7
Multiply -1 to the 2nd equation to change signs and then solve:
-x² + y = − 1
+x² + y = +7
2y = 6
y = 3
Plug in y to either equation (I plug into the first one)
-x² + 3 = − 1
-x² = -4
x = 2
what is the coefficient of the term 4ab
Determine whether the equation below has one solution no solutions or an infinite number of solutions afterwards determine to values of X to support your conclusion
X – 6 = 6 – X
What is the geometric mean between 6 and 12?
Answer:the geometric mean is the product of all the numbers in a set, with the root of how many numbers there are.
here, there are two numbers, so a square root is used.
geometric mean of
3
and
12
:
√
3
⋅
12
3
⋅
12
=
36
√
36
=
6
the value of the geometric mean of
3
and
12
is
6
.
Step-by-step explanation:
Samantha is a salesperson who sells computers at an electronics store. She makes a base pay amount each day and then is paid a commission for every computer sale she makes. The equation P=6.25x+75 represents Samantha's total pay on a day on which she sells x computers. What is the slope of the equation and what is its interpretation in the context of the problem?
The slope is 6.25, it means that her day pay increases by $6.25 for each computer sold
What is the slope of the equation?
A general linear equation in the point-slope form is written as:
y = a*x + b
Where y and x are the two variables, a is the slope, and b is the y-intercept.
In this case, the linear equation is:
P(x) = 6.25*x + 75
We know that P(x) represents her pay, and x represents the amount of computers she sold.
Here we can see that the slope is 6.25, it means says how much her pay increases per computer sold.
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