Answer:
-10
Step-by-step explanation:
Marianna would like to create a mosaic using pieces that have only four angles. Which shapes could Marianna use?
Answer:
Step-by-step explanation:
Cube
Answer: the answer is cube
I’m am so lost please help thank you all
Answer:
Step-by-step explanation:
148 people
PLEASE ANSWER ASAP I NEED IT.
Answer:
\(\huge\boxed{\sf 18^{-3}}\)
Step-by-step explanation:
Given expression:\(\displaystyle \frac{18^4}{18^7}\)
According to exponent rule:\(\displaystyle \frac{a^m}{a^n} = a^{m-n}\)So, the expression becomes:
= \(18 ^{4-7}\)
= \(18^{-3}\)
\(\rule[225]{225}{2}\)
Resuelve la ecuación de la recta
que pasa por el punto (2 , 8 ) y tiene una pendiente de -3.
ayudaaaa
Answer:
SPANISH TALK ENGLISH OK
Step-by-step explanation:
OKKK
Write the expression without a negative exponent.1/a^-4
Explanation
We are given the expression below:
\(\frac{1}{a^{-4}}\)We are required to rewrite the expression without a negative exponent.
This can be achieved thus:
\(\begin{gathered} \frac{1}{a^{-4}} \\ We\text{ }know\text{ }from\text{ }indices\text{ }that\text{ }a^{-x}=\frac{1}{a^x} \\ \therefore\frac{1}{a^{-4}}=1\div a^{-4}=1\div\frac{1}{a^4} \\ =1\times\frac{a^4}{1}=a^4 \end{gathered}\)Hence, the answer is a⁴.
Quotient of 17.4 ÷ 0.2
Answer:
87
Step-by-step explanation:
Hope this helps! Pls give brainliest!
A function f is said to have a removable discontinuity at a if:
1. f is either not defined or not continuous at a.
2. f(a) could either be defined or redefined so that the new function is continuous at a.
Let f(x)=2x²+4x-6/x-1
Show that f has a removable discontinuity at 1 and determine the value for f(1) that would make f continuous at 1.Need to redefine f(1)=
The discontinuity of the function is removed and the value of the function at 1 after removing the discontinuity is 8.
What is meant by a discontinuity in a function?
In algebra, a discontinuous function is one that has a point at which the function is not defined, at which the left-hand limit and right-hand limit are equal but not equal to the value of the function at that point, or at which the limit of the function does not exist. If a function in algebra is not continuous, it is referred to as a discontinuous function. A discontinuous function has a discontinuous curve, just like a continuous function does.
Given f(x) = 2x²+4x-6 / (x-1)
This function has a discontinuity at 1 because when we substitute x =1, the denominator becomes 0 and the function becomes undefined.
But this discontinuity is removable and can be done as shown:
We can factorize the numerator as below:
2x²+4x-6 = 2x²+6x - 2x -6 = 2x(x+3) -2(x+3) = (2x - 2)(x+3) = 2(x-1)(x+3)
Now when we substitute the factorized form of the numerator in the function. Then,
f(x) = 2(x-1)(x+3) / (x-1)
(x-1) can be cancelled from both the numerator and denominator. So the discontinuity is removed.
f(x) = 2(x+3)
Now f(1) = 2 * (1+3) = 8
Now the function is continuous at 1.
Therefore the value of the function at 1 after removing the discontinuity is 8.
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Help. I will be guessing on this, but I want to make sure this is on here so no one has to guess like I am. Help a brother out
Answer:
Line 3
Step-by-step explanation:
→ Calculate gradient
\(\frac{6-3}{4-2} =1.5\)
Answer:
Line 3
Step-by-step explanation:
(0,0) & ( 4 , 6)
\(Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{6-0}{4-0}\\\\=\frac{6}{4}\\\\=\frac{3}{2}\\\\=1\frac{1}{2}\)
I just need this question left pls help
By using the fact that the sum of the interior angles must be 180°, we wil see that:
x = 110°.
How to find the value of x?First, remember that the sum of the interior angles of a triangle is alway equal to 180°.
We also can see that the interior angle that is adjacent to x can be written as:
a = 180° - x
Then the sum of the interior angles will give:
30° + 80° + (180° - x) = 180°
30° + 80° - x = 0
110° - x = 0
110° = x
That is the value of x.
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Right triangle OPQ is shown. There are two line segments drawn parallel to side PQ that form three
similar right triangles.
A
Which TWO of the following expressions are equal to tan (POQ) ?
3/4
3+6/4+4
3+6+9/4+4+4
6/4+4
6+9/4+4+4
Answer: We can start by labeling the lengths of the sides of the triangles as follows:
Let x be the length of OQ, y be the length of PQ, and z be the length of OP.
Then we have:
Triangle OPQ:
PQ = y
OP = z
OQ = sqrt(y^2 + z^2)
Triangle OPR (similar to OPQ):
PR = y
OR = 2z
OP = z
Triangle OQS (similar to OPQ):
QS = sqrt(y^2 + 4z^2)
OS = 2z
OQ = sqrt(y^2 + z^2)
Now, we can use the tangent function to find tan(POQ):
tan(POQ) = (OR + QS) / PQ
= (2z + sqrt(y^2 + 4z^2)) / y
We can simplify the expressions given in the answer choices and see which ones are equal to this:
3/4 = 0.75
3+6/4+4 = 1.5
3+6+9/4+4+4 = 2.5
6/4+4 = 2.5
6+9/4+4+4 = 4.25
So, the only two expressions that are equal to tan(POQ) are:
3/4
6/4+4 = 6/8+2 = 0.75+2 = 2.75
Therefore, the answer is:
3/4
6/4+4 = 2.75
Step-by-step explanation:
the circumference of a circle is 65n. In terms of pi, what is the area of the circle
Answer:
In order to answer this you would need to use this equation: A = πr² (See explanation)
Step-by-step explanation:
So, The circumference of the circle is 65n?
What you need to do is A = πr²
Let's divide 65n by Pi (65/3.14)
That equals 20.70n
Now we have the diameter of the circle. We need the radius for A = πr² .
We need to divide the diameter by two (20.70/2)
We now have the radius of the circle: 10.35n
Now we need to plug 10.35n in our Area equation :A = π10.35²
So now we multiply the Radius by Pi (π * 10.35)
This means that the area of our circle is: A = 32.49
Your answer Is 32.49n
Can anyone help me solve this? Thank you!
Your friend sings every Saturday night at your favorite bar in San Diego. During his show, people show up at the rate of 1 person every minute.
a) What is the probability that on a random minute, at least 3 people show up?
b) What is the probability that he will have to wait at least 3 minutes for the next person to show up?
c) If he has already waited for 1 minute for the next person to show up, what is the probability that he will have to wait at least 3 more minutes for the next person to show up?
Answer:
Step-by-step explanation:
a) The number of people showing up at the bar during any given minute is a Poisson process with an average rate of 1 person per minute. Let X be the number of people who show up during a random minute. Then X follows a Poisson distribution with parameter λ = 1. The probability of at least 3 people showing up in a random minute is:
P(X >= 3) = 1 - P(X < 3) = 1 - (P(X = 0) + P(X = 1) + P(X = 2))
We can use the Poisson probability mass function to find P(X = k) for k = 0, 1, 2:
P(X = k) = (e^-λ) * (λ^k) / k!
Plugging in λ = 1, we get:
P(X = 0) = e^-1 / 0! = 1/e
P(X = 1) = e^-1 * 1^1 / 1! = 1/e
P(X = 2) = e^-1 * 1^2 / 2! = 1/2e
So, the probability of at least 3 people showing up in a random minute is:
P(X >= 3) = 1 - (P(X = 0) + P(X = 1) + P(X = 2)) = 1 - (1/e + 1/e + 1/2e) = 1 - (2/e + 1/2e) = 1 - (5/2e)
b) The probability of having to wait at least 3 minutes for the next person to show up is equal to the probability of having 0, 1, or 2 people show up during the first three minutes. Using the same calculation as above, we find:
P(X <= 2) = P(X = 0) + P(X = 1) + P(X = 2) = (1/e) + (1/e) + (1/2e) = (2/e + 1/2e) = (5/2e)
So, the probability of having to wait at least 3 minutes for the next person to show up is 1 - (5/2e) = 1 - P(X <= 2).
c) If he has already waited for 1 minute, the probability of having to wait at least 3 more minutes for the next person to show up is equal to the probability of having 0 or 1 people show up during the next 2 minutes. Using the same calculation as above, we find:
P(X <= 1) = P(X = 0) + P(X = 1) = (1/e) + (1/e) = 2/e
So, the probability of having to wait at least 3 more minutes for the next person to show up is 1 - (2/e) = 1 - P(X <= 1).
If my answer met your requirements, please rate it BRAINLY AWESOME.
SOLVEEEEEE XXXXXXXxx
Answer:
25 degrees
Step-by-step explanation:
The total angle sum of a triangle is 180 degrees
since the two sides are equal...
(x) + (x) + (4x + 30) = 6x + 30 = 180
==> x = 25 degrees
Determine the number k so that there is a solution to the differential equation ky'- y = x that satisfies the conditions y(1) = 0 and y'(1) = 1
To solve for k, we first take the derivative of the differential equation to obtain:
ky'' - y' = 1
Then we substitute y = 0 and y' = 1 when x = 1, giving us:
k(1) - (1) = 1
k = 2
Therefore, the value of k that satisfies the given conditions is k = 2.
7. Casey bought a 15.4-pound turkey and an 11.6-pound ham for Thanksgiving and paid $38.51. Her
friend Jane bought a 10.2-pound turkey and a 7.3-pound ham from the same store and paid $24.84.
Find the cost per pound of turkey and the cost per pound of ham.
Answer:
t = 1.195pounds.
Step-by-step explanation:
The cost per pound of Turkey and Ham are: 1.195pounds and 1.733pounds respectively.
By observing the question, we must notice this is a word problem and can be written mathematically thus;
For Casey:
15.4t + 11.6h = 38.51
For Jane:
10.2t + 7.3h = 24.84
Therefore, to find the cost per pound of Turkey and Ham, the pair of equations need to be solved simultaneously.
Therefore, we can make t the subject of the formula in equation (2) as follows;
t = (24.84 - 7.3h)/10.2
Therefore, we can substitute the value of t into equation (1) to get;
15.4{(24.84 - 7.3h)/10.2} + 11.6h = 38.51
37.51 - 11.023h + 11.6h = 38.51
0.577h = 1
h = 1.733pounds
Therefore, by substituting the value of h into equation 1, we get the value of t to be;
t = 1.195pounds.
Show ur work and check jt
Answer: 15
Step-by-step explanation:
m-5=10
m-5+5=10+5
m=15
Calculate the areas of these rectangles
Answer:
The answer is below
Step-by-step explanation:
A rectangle is a quadrilateral (four sides) with two pairs of equal opposite and parallel sides. All the four angles in a rectangle are equal to 90° (right angle). The diagonals of a rectangle are equal and bisect each other.
The area of a rectangle = length * breadth
a) Area = length * breadth = 8 cm * 3 cm = 24 cm²
b) Area = length * breadth = 5.2 cm * 7.7 cm = 40.04 cm²
Abu solved 231 multiplication problems. Later, he also solved 131 divison problems. How many more multiplication problems than divison problems did Abu solve?
Answer:
Easy! Abu solved 100 multiplication problems more than division problems
Step-by-step explanation: Just take 231 - 131 = 100 :D
If AABC = ADEC,
ZB = 3x and ZE = 6x - 39
Answer:
x = 13
Step-by-step explanation:
3x = 6x - 39 solve for x
8. What is the arc length, rounded to the nearest hundredth, of a semicircle with radius 5
millimeters?
a. 3.14 millimeters
b. 6.28 millimeters
c. 15.71 millimeters
d. 31.42 millimeters
Answer: D Step-by-step explanation:
Alijah had a taxable income of $8450 and filed his federal income tax return with the Single filing status. Using the table below, find the amount he has to pay in taxes.
Single
Taxable income is over
8.350
33 950
82.750
171.550
372,950
But nat over
8,350
33.950
82,250
171.550
372.550
The tax is
Plus
50.00
835.00
4 675.00
16.750.00
41,754.00
108,216.00
10%
15%
25%
20%
33%
35%
Of the
amount over
50
8.350
33.950
82,250
171.550
372,850
O A. $835.00
• B. $850.00
O c. $2087.50
O D. $1252.50
Answer:
Step-by-step explanation:
67
Alijah's taxable income puts him in the first tax bracket, over $8,350 but not surpassing $33,950. Hence, his tax due is a base of $835 plus 15% of the income that exceeds $8,350. This results in a total tax payable of $850. Option B is the correct answer.
Alijah's taxable income falls within the first bracket of the tax table given, being over $8,350 but not over $33,950.
This bracket requires him to pay a tax of $835.00 plus 15% of the amount over $8,350.
He has a surplus of $100 over the $8,350 threshold (i.e., $8,450 - $8,350), and 15% of $100 equals $15.
Therefore, the total tax he owes would be the fixed amount of $835.00 plus the $15.00 calculated, which sums up to $850.00.
Thus, looking at the provided options, option B ($850.00) would be the correct answer.
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It is known that the highest weekly average price for gasoline in California during 2005 was $3.15 per gallon and the lowest weekly average price for gasoline in California during 2005 was $2.56. Use this information to estimate the standard deviation of the weekly average price for gasoline in California during 2005. The standard deviation is ($3.15-2.56) / 6. I was wondering why you divide by 6?
Answer:
$0.15
Step-by-step explanation:
To solve this problem, we apply the Range rule for estimating Standard deviation.
By the Range Rule:
Standard Deviation
Highest weekly average price for gasoline= $3.15 per gallon.
Lowest weekly average price for gasoline =$2.56 per gallon.
Therefore:
\(\text{Standard Deviation}\approx \dfrac{3.15-2.56}{4} \\=\dfrac{0.59}{4} \\\\=\$0.15 $(correct to the nearest cent).\)
The standard deviation of the weekly average price for gasoline is approximately $0.15.
NOTE: You divide by 4 not 6.
Select the correct answer.
The graph below represents the following system of inequalities.
y> - 2
y > 21 + 2
Which point (x,y) satisfies the given system of inequalities?
OA (-1,-6)
OB. (1,-6)
OC. (-3,-1)
The answer is C: (-3,-1)
To test if points satisfy an equation, all you need to do is test the numbers in both of the equations it provides you
Here is proof the answer is C :
y > x - 2
(lets plug in point C)
-1 > -3 - 2
solve
-1 > -5 ?
Yes this statement is true- onto the next inequalitity!
y > 2x + 2
-1 > 2(-3) + 2
solve
-1 > -6 + 2
-1 > -4 ?
Yes, this inequality is true too!
Know we know answer c (-3,-1) is the right answer!
The point (x,y) satisfies the given system of inequalities is C. (-3,-1).
What is a solution set to an inequality or an equation?If the equation or inequality contains variable terms, then there might be some values of those variables for which that equation or inequality might be true. Such values are called solution to that equation or inequality.
Given that The graph below represents the following system of inequalities.
y> - 2
y > 21 + 2
So, y > x - 2
Lets plug in point C;
-1 > -3 - 2
solve;
-1 > -5 ?
Yes this statement is true- onto the next inequalitity.
y > 2x + 2
-1 > 2(-3) + 2
solve;
-1 > -6 + 2
-1 > -4 ?
Yes, this inequality is true too!
Therefore, the point (x,y) satisfies the given system of inequalities is C. (-3,-1).
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What is 3 3/4 ft to yards as a mixed number?
The value of 3¾ft in yards would be = 1 6/25 yard
What is a mixed number?A mixed number is the type of number that is made up of three parts such as the whole number, a numerator and a denominator.
To convert to yards;
1 ft = 0.33 yard
3¾ = X yards
make x yards the subject of formula;
X yards = 3¾ × 0.33
X yards = 3.75×0.33
X yards = 1.24 yards
X yards in mixed number= 124/100 = 31/25 = 1 6/25 yard.
Note that the final value which is 124/100 is reduce to the lower figure by dividing through with 4 to arrive at the mixed number 1⁶/25
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A red purse contains $7, and a black purse contains $10. Each package contains X red purses and Y black purses. If there are N packages (N ≥ 2) and the total value of them is $2021 and if each of X, Y, and N are positive integers, what is X+Y+N?
If each of X, Y, and N are positive integers, then the value of X+Y+N is 212.1
What are system of inequalities?A collection of inequalities for which we consider common solution for all inequalities is called a system of inequalities.
WE are given that A red purse contains $7, and a black purse contains $10. Each package contains X red purses and Y black purses.
X = 7
Y = 10
If there are N packages (N ≥ 2) and the total value of them is $2021
X + Y = One packages
N packages = N(X + Y ) = 10 N
if each of X, Y, and N are positive integers, then;
10 N = 2021
N = 2021/10
N = 202.1
Therefore, X+Y+N = 10 + 202.1 = 212.1
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Humanity would achieve in life expectancy of 110 years in approximately
Humanity would achieve a life expectancy of 110 years in approximately 60 years.
To calculate the number of years it would take for humanity to achieve a life expectancy of 110 years, we need to determine the number of decades required to reach this goal based on the given rate of increase.
In 2009, the life expectancy was about 80 years. From that point, we need to calculate the difference between the current life expectancy and the target life expectancy of 110 years.
110 years - 80 years = 30 years
Since the rate of increase is 5.3 years every decade, we can divide the difference by the rate to determine the number of decades required:
30 years / 5.3 years per decade ≈ 5.66 decades
Since we can't have a fraction of a decade, we need to round up to the nearest whole number. Therefore, it would take approximately 6 decades for humanity to achieve a life expectancy of 110 years.
To calculate the number of years, we multiply the number of decades by 10:
6 decades * 10 years per decade = 60 years
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What is the slope of the line shown below?
(1,6) (-5,-7)
A. 13/6
B. -13/6
C. -6/13
D. 6/13
\((\stackrel{x_1}{1}~,~\stackrel{y_1}{6})\qquad (\stackrel{x_2}{-5}~,~\stackrel{y_2}{-7}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{-7}-\stackrel{y1}{6}}}{\underset{\textit{\large run}} {\underset{x_2}{-5}-\underset{x_1}{1}}} \implies \cfrac{ -13 }{ -6 } \implies \cfrac{13 }{ 6 }\)
What is the first term of the quotient of the following division problem?
(x³ - 1) = (x + 2)
O -0.5
O 1
O x²
Ox^4
The solution to the algebraic problem is \(x^{2}\)
What is an Algebraic Equation?
An algebraic equation is a mathematical statement that sets two expressions equal to each other. An algebraic equation is typically made up of a variable, coefficients, and constants.
Solution:
(\(x^{3}\) – 1) = (x+2)
On dividing (\(x^{3} - 1\)) by (x+2)
The first term of the quotient will be x^2 by following the Long Division Method of Algebraic Division.
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Jane bought 6 boxes of beads. She used 14 of it to make face mask holders and also gave 12 of the boxes to her sister. How many boxes of beads were left?
Jane has 6 - 14 - 12 = -20 boxes of beads left.
Jane initially had 6 boxes of beads.
She used 14 of those boxes to make face mask holders and gave 12 boxes to her sister.
To find out how many boxes of beads she has left, we need to subtract the boxes used and given away from the initial number.
First, let's calculate the total number of boxes used and given away:
Total boxes used and given away = Boxes used for face mask holders + Boxes given to sister
Total boxes used and given away = 14 + 12
Total boxes used and given away = 26
Next, we can subtract the total boxes used and given away from the initial number of boxes Jane had:
Boxes left = Initial number of boxes - Total boxes used and given away
Boxes left = 6 - 26
Boxes left = -20
The result is -20, which implies that Jane has a deficit of 20 boxes of beads.
This means she doesn't have any boxes of beads left; she has a shortage of 20 boxes based on the activities she performed.
It's important to note that having a negative value indicates that Jane doesn't have enough boxes to fulfill her activities.
If the result were positive, it would represent the number of boxes remaining.
However, in this case, Jane has used and given away more boxes than she initially had, resulting in a negative value.
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Describe the series of rigid motion transformations which map polygon A to Polygon A'''. Are the two polygons congruent? Explain how you know.
(someone please help me!)
The series of rigid motion transformations that map polygon A to Polygon A''' are;
A rotation of 145° about the origin to map A to A'A reflection across the x-axis to map A' to A'A translation of four units to the right and one unit downWhat is a rigid transformation?A rigid transformation is a transformation in which the distance between all pairs of points on the pre-image is preserved following the transformation.
The series of rigid motion transformations that map polygon A to polygon A''' are;
Transformation from A to A'
The angle in the diagram in the question indicates the rotation of polygon A to produce polygon A' is a rotation of 145° about the origin.Transformation from A' to A''
The coordinates of the vertices of triangle, A' (0.9, 4.1), (3.1, 5.9), (5.5, (2.5) and the vertices of triangle A'' (0.9, -4.1), (3.1, -5.9), (5.5, -2.5), indicates that the transformation is a reflection about the x-axisTransformation from A'' to A'''
The arrow of the translation transformation indicates that the transformation is a translation of four units to the right and 1 unit down.Learn more about rigid transformations in geometry here:
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