Answer:
The image point of (4,0) after the rotation of 90° counterclockwise about the origin is (-4,0)
a plumber charges $12.00 per hour for her work, plus a $32.00 materials fee. If you pay her $74.00, how many hours did the plumber work?
Answer:
3.5 hours
Step-by-step explanation:
74-32=42
42/12=3.5
Solve: (1+i)^14. And show workings
Step-by-step explanation:
(1 + i)¹⁴ = (1 + i)²×(1 + i)¹² = ((1 + i)²)⁷
(1 + i)² = 1 + 2i - 1 = 2i
((1 + i)²)⁷ = (2i)⁷ = 2⁷×i⁷ = 128×i²×i²×i²×i =
= 128×-1×-1×-1×i = -128i
Carmen has a rope that is 18 meters long. She cuts away a piece that is 8.16 meters long. How long is the remaining piece of rope?
In a case whereby Carmen has a rope that is 18 meters long. She cuts away a piece that is 8.16 meters long the lenght of the remaining piece of rope is 9.84 metres.
What is distance?Distance can be described as the space that exist between two or more point, the concept that willbe used in the question is the concept of distance.
The total distance of the rope is 18 meters long , and she cut 8.16 meters long awya which implies that the remaining lenght of the rope will be ( 18 - 8.16)= 9.84 metres
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factorise 16-(5y-2)^2
The factorized form 16 - [tex](5y-2)^2[/tex] is -1(5y+2)(5y-6)
The expression is
16 - [tex](5y-2)^2[/tex]
The expression is a mathematical statement that consist of different variables, numbers and the arithmetic operators
The expression is
The expression is
16 - [tex](5y-2)^2[/tex]
We know the identity
[tex](a+b)^2= a^2+2ab+b^2[/tex]
Apply this identity on the expression
= 16 -( [tex]25y^2[/tex]- 20y + 4)
Apply the distributive property
= 16 - [tex]25y^2[/tex]+ 20y - 4
Subtract the like terms
= - [tex]25y^2[/tex]+ 20y + 12
Take common term outside
= -1([tex]25y^2[/tex]- 20y - 12)
Split the middle term and apply factorization
= -1 ([tex]25y^2[/tex]+ 10y -30y - 12)
Take common term outside
= -1 ( 5y(5y+ 2) -6(5y +2)
Take common term outside
= -1(5y+2)(5y-6)
Hence, the factorized form 16 - [tex](5y-2)^2[/tex] is -1(5y+2)(5y-6)
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A line's slope is 6,and its y -intercept is–4 . What is its equation in slope -intercept form?
Answer:
slope: 6
y-intercept: -4
easy: y = 6x -4
what is 5.37 divided by 3 equal put 5.37 at the top and 3 at the bottom PLEASE EXPLAIN YOUR ANSWER. my lil sister need help
Answer:
5.37/3 = 1.79
Step-by-step explanation:
Given statement,
→ 5.37 divided by 3 equals?
Forming the problem,
→ 5.37/3
Let's solve the problem,
→ 5.37/3
→ (5.37 ÷ 3)
→ 1.79
Hence, the answer is 1.79.
The directions on a swimming pattern says to cut an extra 15 percent of fabric to account for error chloe needs 0.75 yard of fabric to make a skirt and she cuts 0.8625 yards did chloe cut the correct amount of fabric white or why not
The directions on a swimming pattern says to cut an extra 15 percent of fabric to account for error, Chloe needs 0.75 yard of fabric to make a skirt and she cuts 0.8625 yards,
Given that the directions on a sewing pattern say to cut an extra 15% of fabric to account for an error, and Chloe needs a 0.75 yard of fabric to make a skirt, so she cuts 0.1125 yard, to determine if Chloe cut the correct amount of fabric the following calculation must be made:
0.75 x 1.15 = X
0.8625 = X
0.8625 - 0.1125 = 0.75
Therefore, the amount of fabric that Chloe cut is correct.
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Activity 6: What Property does 1 Exhibit? Directions: Complete the table by determining the property of operations on integers that justifies each statement. (Note: a xb can also be written as ab.)
Given:
1. 0 + (-3) = = -3
2. 2(3-5) = 2(3)3) - 2(5)
3. (-6) + (-7) = (-7) + (-6)
4. 1(-9) = = -9
5.(-4) [tex]( - \frac{1}{4} )[/tex] = 1
6. 2 (3 x 7) = (2 X 3) x 7
7. 10 + (-10) = 0
8. 2(5) 5(2)
9. 1 [tex]( - \frac{1}{4}) [/tex] = = [tex] - \frac{1}{4} [/tex]
10. (-3)(4 + 9) = (-3)(4) + (-3)(9)
1). 0 + (-3) = = -3 is Additive Inverse
2).2(3-5) = 2(3)3) - 2(5) is Associative Property
3). (-6) + (-7) = (-7) + (-6) is Commutative Property
4).1(-9) = = -9 is Multiplicative Identity
5).(-4) (-1/4) = 1 is Commutative Property
6). 2 (3 x 7) = (2 X 3) x 7 is Associative Property
7). 10 + (-10) = 0 is Additive Inverse
8). 2(5) 5(2) is Commutative Property
9).1(-1/4)= -1/4 is Multiplicative Identity
10). (-3)(4 + 9) = (-3)(4) + (-3)(9) is Distributive Property
What is Additive inverse ?
To get a result equal to 0, add the original number and the additive inverse by simply changing the sign of the integer. On the basis of negation of the original number, the characteristics of additive inverse are listed below. For instance, if x is the starting number, then -x is x's additive inverse.
What is Commutative Property ?
This law merely asserts that while adding and multiplying integers, you can rearrange the numbers in a problem without changing the solution. Division and subtraction do not work interchangeably.
A+B=B+A
What is Multiplicative Identity ?
An element of a set that remains intact after being multiplied by any other element of the set. In the set of real numbers, 1 is a multiplicative identity.
What is Distributive Property?
The distributive property states that multiplying the sum of two or more addends by a number yields the same outcome as multiplying each addend separately by the number and combining the resulting products.
What is Associative Property?
A mathematical principle known as the associative property states that grouping the factors in a multiplication problem does not affect the solution.
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Type the missing number to complete the proportion.
94 kilometers in 6 hours = 47 kilometers in _
hours
Using proportion, if 94 kilometres is 6 hours, 47 kilometres is 3 hours.
How to solve proportion?Proportion is a mathematical comparison between two numbers
Proportion says that two ratios (or fractions) are equal.
Therefore, let's solve the proportion.
94 kilometres = 6 hours
47 kilometres = ?
cross multiply
time = 47 × 6 / 94
time = 282 / 94
time = 3 hours
Therefore, if 94 km is 6 hours, 47 km is 3 hours.
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Need help pls
I HAVE A BAD GRADE IN MATH HELP PLS
The rounded value of x² = 521/73 is ± 2.67 and already rounded to the nearest hundred.
What is a perfect square number?A perfect square number when taken the square root of it results in an integer.
Numbers that are not perfect squares when taken the square root of it are irrational numbers.
One method of obtaining square roots for perfect squares is prime factorization.
Given, x² = 521/73.
∴ x² = 7.13.
x = ± √7.13.
x = ± 2.67.
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Matthew's curtain company is making curtains for a local hotel. he wants each curtain to be 36 inches long. at the fabric store, fabric is sold by the foot. if matthew's curtain company wants to make 74 curtains, how many feet of fabric will he need?
Matthew will need 222 feet of fabric to make 74 curtains.
According to the question,
We have the following information:
Required length of each curtain = 36 inches
Total number of curtains to be made = 74
Now, the total length of the fabric needed to make 4 curtains can be found by multiplying length of one curtain by total number of curtains.
So, we have the following expression:
36*74
2664 inches
Now, we will convert this into feet:
1 inch = 1/12 foot
2664 inches = 2664/12 feet
2664 inches = 222 feet
Hence, Matthew will need 222 feet of fabric to make 74 curtains.
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100 points I Will Mark Brainliest Please Help ASAP i only have 30 min
jason bought 10 of the 30 raffle tickets for a drawing. Assuming that he chooses the winning ticket each time, what is the probability that Jason will win all 3 of the prizes if once a raffle ticket wins a prize, the ticket is thrown away?
6/203
1/27
3/29
1/9
Answer:
the answer is 1/27
Step-by-step explanation:
so firstly
10/30 has 20 tickets left
3 tickets are winning so
1/27
Rectangle QPRS i dilated about the origin by a cale factor of 12, then tranlated 2 unit up to form rectangle Q′P′R′S′. What are the coordinate of S′?
Repone
(1,1)
( 1 , 1 )
(1,3)
( 1 , 3 )
(5,2)
( 5 , 2 )
(7,2)
The new coordinates for point S are (84,24), for a dilation centered around the origin,
Dk (x,y) = (kx, ky) ,
K is the dilated scale factor that is multiplied by points vertices of a rectangle,
then rectangle QPRS where vertices were,
P = (1,1)
Q = (1,3)
R = (5,2)
S = (7,2)
To get the dilation of this QPRS to Q'P'R'S' with a scale factor of 12 you have to multiply each and every coordinate of its vertices by 12.
Q' = (12,12)
P' = (12,36)
R' = (60,24)
S' = (84,24)
Hence, The new coordinates for point S are (84,24)
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Please help ASAP!!! I need help! More points coming!
Answer:
x=2
y=-4
Step-by-step explanation:
a) we isolate y
18=7x-y
+y. +y
y+18=7x
-18. -18
y=7x-18
b) now fill this in
3x+(7x-18)=2
10x-18=2
+18. +18
10x=20
/10. /10
x=2
Now fill in X to find y
3(2)+y=2
6+y=2
-6. -6
y=-4
Hopes this helps
is y=1/3x+5 proportional or non proportional
The following equation is not proportional.
What is equation?
An equation is a formula that uses the equals sign to connect two expressions to show that they are equal.
Main Body:
we now that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=y/x or y= kx.
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
In this problem we have
y= 1/(3x+5)
This is the equation of the line in slope intercept form
where
m= 3
b= 5
The given equation not represent a proportional relationship, because the line not pass through the origin
In a proportional relationship the value of b (y-intercept) is equal to zero
Hence , equation is not proportional.
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Find the 3rd degree equation that is divisible by x, (x − 3), (x+1)
The 3rd degree equation that is divisible by x, (x − 3), (x+1) is x³ - 2x² - 3x.
Define cubic polynomial.A cubic polynomial is a sort of polynomial that is based on the variable's largest exponent, or degree, in mathematical terms. As a result, a cubic polynomial is one in which the degree or maximum power of the variable is 3. An algebraic statement having variables, constants, and exponents that are whole integers is called a polynomial.
The given factors are x, (x - 3), (x + 1)
To find the 3rd-degree polynomial divisible by x, (x - 3), (x + 1) multiply the three expressions.
First multiply x, (x - 3)
x × (x - 3)
= x × x - 3 × x
= x² - 3x
Now multiply x² - 3x and (x +1)
(x² - 3x) × (x + 1)
= x²(x) - 3x(x) + x²(1) - 3x(1)
= x³ - 3x² + x² - 3x
= x³ - 2x² - 3x
So, this is the 3rd-degree equation that is divisible by x, (x − 3), (x+1).
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Select all of the following equation(s) that are quadratic in form. x4 – 6x2 – 27 = 0 3x4 = 2x 2(x + 5)4 + 2x2 + 5 = 0 6(2x + 4)2 = (2x + 4) + 2 6x4 = -x2 + 5 8x4 + 2x2 – 4x = 0
The equations in quadratic will be:
a) x⁴ – 6x² – 27 = 0
d) 6(2x + 4)² = (2x + 4) + 2
e) 6x⁴ = -x² + 5.
What is a quadratic equation?The quadratic equation au² +bu + c=0 can be written as a formula. where u is an algebraic expression. In each of these examples, doubling the exponent of the middle term equals doubling the exponent of the leading term.
The quadratic function f(x) = a(x - h)² + k is said to be in standard form if an is not equal to zero. If an is positive, the graph will open upward; if an is negative, it will open downward. The vertical line x = h is the line of symmetry, and the point is the vertex (h,k)
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Solve each problem by writing and solving an equation. use "x" for the variable and type with no spaces. during the spring car wash, asb washed 14 fewer cars than during the summer car wash. they washed a total of 96 cars during both car washes. how many cars did they wash during the spring car wash?
Answer:
55 cars
Step-by-step explanation:
x + (x-14) = 96
help meeeeeeeeeeee pleaseee rnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The amount owed at the end of the 6 years duration is $10865
How to determine the amount owed in six years?The given parameters about the compound interest are
Principal Amount, P = $5300
Interest Rate, R = 8%
Time, t = 6 years
To calculate the amount owed, we make use of the following formula
A = P + CI
Where
Compound interest, CI = P(1 + R)^t - P
So, the equation becomes
A = P + P(1 + R)^t - P
Evaluate the like terms
A = P(1 + R)^t
In this question, the formula is given as
A = P(1 + r/n)^nt
Where
n = 12, i.e compounded monthly
Substitute the known values in the above equation
A = 5300 * (1 + 8%/12)^(6*12)
Express 8% as decimal
A = 5300 * (1 + 0.08/12)^(6*12)
Evaluate the sum
A = 5300 * (1.01)^(6*12)
Evaluate the exponent
A = 5300 * 2.05
Evaluate the product
A = 10865
Hence, the value of the amount after 6 years is $10865
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Why is 27/22 as a decimal rounded to the nearest hundredth?
The division of the fraction 27/22 will result to 1.22 rounded to the nearest hundredth.
How to divide fractions using long divisionTo divide the fraction using long division, we first divide the dividend with the divisor, write the whole number result, and then multiply it by the divisor, subtract the result from the dividend to get a new dividend. Repeat the process for the new dividend until you arrive at a remainder of zero, or continue to a given place value.
27/22 = 1 whole number and a remainder of 5
1 × 22 = 22
27 - 22 = 5
drop the value for the tenth digit of 27.00 which is 0 to yeild 50{ new dividend}
50/22 = 2 whole number and a remainder of 6
2 × 22 = 44
50 - 44 = 6
drop the value for the hundredth digit of 27.00 which is 0 to yeild 60{ new dividend}
60/22 = 2 whole number and a remainder of 16
2 × 22 = 44
69 - 44 = 16
we are rounding up to the nearest hundredth, we stop with the quotient of 1.222.
Hence, the fraction 27/22 is equal 1.22 rounded up to the nearest hundredth using the long division process.
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Please help! Four transformed absolute value functions are shown in the graph. Write the name of the function that matches each equation on the blank.
The name of the function that matches each equation on the blank is,
-|x-7|= h(x)
0.5|x-3|= g(x)
|x-3|-2= f(x)
-5|x-7|=j(x)
What is meant by a function?A function from a set X to a set Y in mathematics assigns to each element of X exactly one element of Y. The domain of the function is the set X, and the codomain of the function is the set Y.
The first known approximation to the concept of function is attributed to the Persian mathematicians Al-Biruni and Sharaf al-Din al-Tusi. Functions were originally idealistic representations of how one variable quantity depended on another. The location of a planet, for example, changes throughout time. Historically, the concept was formed with infinitesimal calculus near the end of the 17th century, and the functions that were analyzed were differentiable until the 19th century.
The name of the function that matches each equation on the blank is,
-|x-7|= h(x)
0.5|x-3|= g(x)
|x-3|-2= f(x)
-5|x-7|=j(x)
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On Friday, Carlos sold two and two-thirds pitchers of lemonade at his lemonade stand. On Saturday, he sold one and four-sixths times as much lemonade as he sold on Friday. How many pitchers of lemonade did he sell on Saturday?
A. two and six-ninths
B. three and eight-eighteenths
C. four and eight-eighteenths
D. eight and eight-ninths
Answer:
The correct answer is 1 pitcher.
Step-by-step explanation:
Oscar sold 2 pitchers of lemon are from his lemonade stand on Friday.
On Saturday, he sold as much lemonade as on Friday.
The number of pitchers of lemon from the lemonade stand which Oscar sold on Saturday is given by × 2 = 1 pitcher.
Thus Oscar sold 1 pitcher on Saturday which is half of the number of pitchers of lemon he could sell on Friday.
Answer:
c
Step-by-step explanation:
Please help
Identify the proportional relationship
There is no proportional relationship between the given equations.
What is proportional relationship?
Relationships between two variables where their ratios are equal are known as proportional relationships. The fact that one variable is always a constant value multiplied by the other in a proportionate connection is another way to conceive of them. This parameter is referred to as the "constant of proportionality".
The given equations are,
7x - 2 = y
y = 2x + 4
y = 5x
y + 1 = 3x
These equations can be written as,
y = 7x - 2
y = 2x + 4
y = 5x
y = 3x - 1
Now consider the following table,
x y y/x
7 1 1/7
2 1 1/2
5 1 1/5
3 1 1/3
From above we can see that none of the ratio are equal, all ratios are different.
Hence, none of the given equations having proportional relationship.
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Which two points should the line of best fit go through to best represent the data in the scatterplot?
A graph with points (1, 3), (2, 7), (3, 8), (4, 11), (5, 12), (6, 13).
(1, 3) and (2, 7)
(1, 3) and (6, 13)
(3, 8) and (5, 12)
(5, 12) and (6, 13)
The best line fit go through to represent the data is (3,8) and (5,12)
The correct option is Option c)
What is best fit line?
A straight line that minimises the gap between it and some data is called a line of best fit. In a scatter plot containing various data points, a relationship is expressed using the line of best fit. It is a result of regression analysis and a tool for forecasting indicators and price changes.
We are given some points we will plot the graph on the points
From that if we plot the line through the point (3,8) and (5,12)
That will leave 2 points above the line and 2 point below the line
Hence it is the best fit line
The correct option is option C)
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Determine which set of statements is inductive reasoning.
O
Given: Everyone dressed casually on Friday
Conjecture: All Fridays are casual days
Given: 3a²
48
Conjecture: a = 6
-
Given: WXYZ is a rectangle.
Conjecture: WX = YZ and WZ = XY
Given: All donuts are unhealthy
Conjecture: This chocolate donut is unhealthy.
From the given set of statements, the conjecture which represent the inductive reasoning are given by :
a. Given : Everyone dressed casually on Friday
Conjecture : All Fridays are casual days.
c. Given : WXYZ is a rectangle.
Conjecture : WX = YZ and WZ = XY
d. All donuts are unhealthy.
Conjecture : This chocolate donut is unhealthy.
As given in the question,
Inductive reasoning is the conclusion which is based on the process of observed pattern.
Given set of statements represents the inductive reasoning or not:
a. Given : Everyone dressed casually on Friday
Conjecture : All Fridays are casual days.
From observing pattern based on Friday dressing we conclude all Fridays are casual days.
Represent inductive reasoning.
b. Given : 3a² = 48
Conjecture : a = 6
Here we cannot observe the process , we have to show the calculation.
Not representing inductive reasoning.
c. Given : WXYZ is a rectangle.
Conjecture : WX = YZ and WZ = XY
From observing pattern based on property of rectangle it is concluded that WX = YZ and WZ = XY.
Represent inductive reasoning.
d. All donuts are unhealthy.
Conjecture : This chocolate donut is unhealthy.
From observing pattern based on all donuts property it is concluded that chocolate donuts is also unhealthy.
Represent inductive reasoning.
Therefore, from the given set of statements, the conjecture which represent the inductive reasoning are given by :
a. Given : Everyone dressed casually on Friday
Conjecture : All Fridays are casual days.
c. Given : WXYZ is a rectangle.
Conjecture : WX = YZ and WZ = XY
d. All donuts are unhealthy.
Conjecture : This chocolate donut is unhealthy.
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2x+y=1 and y=2x+1 how many solutions
The expression 2x + 1 = y and y = 2x + 1 has no solution.
Expression:
The expression means a mathematical statements that have two terms at least that contain variables, numbers, or both connected by the arithmetic operators.
Given,
Here we have the expressions 2x + 1 = y and y = 2x + 1.
Now, we have to find the number of solution for this expression.
When we try to find the solution(s) graphically, you would plot both of the equations as straight lines. The solution(s) lies where the lines intersect.
But here we looking into the given equation both are equal.
And if we plot these on the graph then it will simply present the straight line. And there is no intersection in it.
Which also states that there is no solution for this expression.
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In triangle EFG, m∠E = 95.2° and m∠F = 43.7°. Determine the measure of the exterior angle to ∠G.
138.9°
84.8°
51.5°
41.1°
The measure of the exterior angle to ∠G is 138.9°.
What is a triangle?A triangle is a three-sided closed-plane figure formed by joining three noncolinear points. Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.
Given, In triangle EFG, m∠E = 95.2° and m∠F = 43.7°.
We know the sum of all the interior angles in a triangle is 180°.
We also know that the measure of an exterior angle in a triangle is the sum of the two opposite interior angles.
∴ The measure of the exterior angle to m∠G is = m∠E + m∠F.
= 95.2° + 43.7°.
= 138.9°.
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Hercules had to clean out a stable for King Augeas. The king had 3,000 cattle. Hercules said he would clean the stable in one day if the king paid him by giving him 1/10 of the cattle. How many cattle did Hercules want for his work?
Hercules got 300 cattle from the King for cleaning out his stable
FractionsMultiplying fractions is defined as the product of a fraction with a fraction or with an integer or with the variables. The procedure to multiply the fractions are: Multiply the numerator with numerator. Multiply the denominator with the denominator. Simplify the fractions, if required.
To find how many cattle Hercules got for his work, we can simply multiply 3000 by 1/10 and get the value.
3000 * 1/10 = 300.
He got 300 cattle for his work.
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At a local high school, gpa's are normally distributed with a mean of 2. 9 and standard deviation of 0. 6. What is the gpa of the highest 2. 5% of the students?.
At a local high school, GPA's are normally distributed with a mean of 2.9 and standard deviation of 0.6.
x=4.25 is the GPA highest 2.5% of the students.
We have to find the GPA of the highest 2.5% of the students.
Mean = μ = 2.9
Standard deviation = σ = 0.6
Finding the z value for corresponding area 0.9750
For 95% confidence interval ,
z = 1.96
For 97.5% confidence interval,
We get z = 2.25
From
Z = ( x - μ ) / σ
For 2.5% of the students
To solve for x
x = Z*σ + μ
x = 2.25*0.6 + 2.9
x = 1.35 + 2.9
x = 4.25 GPA of highest 2.5% of students
Hence the answer is, x=4.25 is the GPA highest 2.5% of the students.
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Pls help! i can get pt1 but not Pt2
Answer: 18/20
Step-by-step explanation: