A' - (-1,4)
B' - (-1,8)
C' - (-5,4)
hope this helps
While volunteering in her community, Janicka picked up 5 2/5 lb of trash. If 2/3 of what she collected was able to be recycled, how many pounds of trash did Janicka recycle?
The pounds of trash that Janicka recycle is 3 3/5 pounds.
What is a fraction?A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split.
In this situation, Janicka picked up 5 2/5 lb of trash and 2/3 of what she collected was able to be recycled.
The amount to be recycled will be:
= 2/3 × 5 2/5
= 2/3 × 27/5
= 54 / 15
= 3 9/15
= 3 3/5
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Name the Inequalities
Pls help me, giving brainliest 50 POINTS!
Pls show your work and not only your answers pls
write -(1/4x1/4x1/4x1/4) using exponents
The solution to the mathematical expression -(1/4x1/4x1/4x1/4) in exponent form is [tex]\mathbf{-4^{-4}}[/tex]
Writing mathematical expressions in exponents formNumber multiplication is a basic and common operation. However, the product of multiplication can be stated differently at times, whether to reduce the equation or to explain the mathematics required. Many numbers can be expressed exponentially.
The concept of exponential form is a method of expressing a number that has been multiplied by itself several times. The fundamental formula is [tex]\mathbf{y=b^x}[/tex]
Exponential expressions are simply a shorthand way of writing powers. The exponent specifies how many times the base has been utilized as a factor.
From the information given
:= -(1/4*1/4*1/4*1/4)[tex]
=-(4^{-1}\times4^{-1}\times4^{-1}\times4^{-1})[/tex][tex]=-(4^{(-1+(-1)+(-1)+(-1))})[/tex][tex]=-(4^{(-1-1-1-1)})[/tex][tex]=-(4^{(-4)})[/tex][tex]\mathbf{=-4^{-4}}[/tex]
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7 times some number is 28. What is the number?
Equation:
Solution:
Answer:
4
Step-by-step explanation:
aint no way...this is literally 1st grade math...anyways
7(x)=28
divide both sides by 7
x=4
what is the value of sin 78^
The exact value of the sine of angle 78° sin(78°) is presented as follows;
[tex]sin(78^{\circ}) = \dfrac{\sqrt{5}-1+\sqrt{\sqrt{5}\cdot \left(6+6\cdot \sqrt{5} \right) } }{8}[/tex]
What is the sine of an angle?The sine of an angle is found by taking the ratio of the opposite side to the hypotenuse side of a right triangle that has the specified angle.
The sine of angle 78° is found from the sine of the sum of two angles (60° + 18°) as follows;
sin(78°) = sin(60° + 18°)
sin(A + B) = sin(A)·cos(B) + cos(A)·sin(B)
Therefore, sin(78°) = sin(60° + 18°) = sin(60)·cos(18°) + cos(60°)·sin(18°)
Where, 18° = A, we have;
5·A = 90°
2·A = 90° - 3·A
sin(2·A) = sin(90° - 3·A) = cos(3·A)
2·sin(A)·cos(A) = 4·cos³(A) - 3·cos(A)
2·sin(A)·cos(A) - (4·cos³(A) - 3·cos(A)) = 0
2·sin(A) - (4·cos²(A) - 3) = 0
2·sin(A) - (4·(1 - sin²(A)) - 3) = 0
4·sin²(A) - 2·sin(A) - 1 = 0
Which gives;
[tex]sin(A) = \dfrac{-1\pm \sqrt{5} }{4}[/tex]
[tex]sin(18^{\circ}) = \dfrac{\sqrt{5} -1 }{4}[/tex]cos²(18°) = 1 - sin²(18°)
cos(18°) = √(1 - sin²(18°))
[tex]cos(18^{\circ}) =\sqrt{1 - \left( \dfrac{\sqrt{5} -1 }{4}\right)^2} = \dfrac{1}{4} \cdot \sqrt{10+2\cdot \sqrt{5} }[/tex]
[tex]cos(18^{\circ}) = \dfrac{1}{4} \cdot \sqrt{10+2\cdot \sqrt{5} }[/tex]
Therefore;
[tex]sin(78^{\circ})=\dfrac{\sqrt{3} }{2} \cdot \left( \dfrac{1}{4} \cdot \sqrt{10+2\cdot \sqrt{5} }\right) +\dfrac{1}{2} \cdot \left( \dfrac{\sqrt{5} -1 }{4}\right)= \dfrac{\sqrt{5}-1+\sqrt{\sqrt{5}\cdot \left(6+6\cdot \sqrt{5} \right) } }{8}[/tex]
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1.You need to earn at least $90. You earn $7 for each hour you work.
Which inequality represents the number of hours h that you need to
work?
(Look at the picture for options for the answer)
2. Write a graph that represents the solution
Answer:
Inequality:
Graph choice:
Step-by-step explanation:
Inequality
It says at least 90, which means we have to use the greater than or equal to sign
Our inequality so far: 90≥______
Now it says you earn 7 dollars per hour, which means 7 times the number of hours you work or 7h. Our inequality now looks like this:
90≥7h
The answer choice that matches is A (90≥7h = 7h≤90)
For the second question on the bottom, I added an image.
(Answer is B)
Determine the intercepts of the line.
Do not round your answers.
y=-2x - 21
x-intercept:
y-intercept:
The x intercept of y = -2x - 21 is [tex]\frac{-21}{2}[/tex]
The y intercept of y = -2x - 21 is -21
What is x - intercept and y - intercept of a line?
The distance from the origin to the point where the line cuts the x axis is the x intercept of the line.
The distance from the origin to the point where the line cuts the y axis is the y intercept of the line.
The given equation of line is
y = -2x - 21
For x intercept, we have to put y = 0
[tex]-2x - 21 = 0\\2x = -21\\x = \frac{-21}{2}[/tex]
So the x intercept is [tex]\frac{-21}{2}[/tex]
For y intercept, we put x = 0
[tex]y = -2\times 0 -21\\y = -21[/tex]
The y intercept is -21
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The tape diagram shows that Odalis is 132 cm tall, which is 150% of their sister Dalia's height.
132
Height (cm)
150%
Complete the table to show different percentages of Dalia's height.
Percentage
150% of Dalia's height
25% of Dalia's height
100% of Dalia's height
Answer:
150% = 132 cm, 25%= 22 cm, 100%= 88 cm
Given:
Height of Odalis = 132 cm
This height is 150%
Divided into 6 parts.
To find: Different percentages of Dallas's Height
Solution:
Dalia's Height = Odalis height * (100/150)
= 132 cm * (2/3)
= 88 cm.
150% of Dallas's Height is 132 cm.
25% of Dalia's Height = 1/4 * 88 = 22 cm
100% of Dalia's Height = 88 cm.
This can also be taken by parts.
6 parts = 150%
1 part = 150/6 = 25%
And 6 parts = 132 cm,
so, 1 part = 132/6 = 22cm.
so , 25% = 1 part= 22cm.
100% = 4 parts = 22*4 = 88 cm.
150% = 6 parts = 22*6 = 132 cm.
Hence, 150% = 132 cm
25%= 22 cm
100%= 88 cm
Step-by-step explanation:
Answer:The tape diagram shows that Odalis is 132 cm tall, which is 150% of their sister Dalia's height.
132
Height (cm)
150%
Complete the table to show different percentages of Dalia's height.
Percentage
150% of Dalia's height
25% of Dalia's height
100% of Dalia's height
Step-by-step explanation: Just look at the awnser
Write an inequality in slope intercept form from the linear inequality graphed below.
The inequality represented by the graph in slope intercept form is
y ≤ 2x - 4How to find the inequality the graph representsA graph is a pictorial representation of data and the graph presented represents inequality data
The graph shows a linear function written in the slope intercept form form as
y = mx + c
where slope, m calculated as
c = intercept
x = input variables
y = output variables
calculation of slope
The points used for the slope is gotten from the graph as (2. 0) (0, -4)
m = (y₂ - y₁) / (x₂ - x₁)
substituting the values
= ( -4 - 0 ) / ( 0 - 2 )
= -4 / -2
= 2
y intercept, c
this is a point where the graph cuts the y axis
c = -4
The graph contains
a solid line as result there will be "equal to" attached to the inequality symbol usedshading below the line means less thanthis gives the idea to use less than or equal to written with the symbol ≤
hence the equation is written using y = mx + c and substituting the values
y ≤ 2x - 4
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A hotel has a budget of $63,750 to repaint the lobby and some hotel rooms. The hotel spent $26,700 on painting the lobby. Each room costs $4,250 to paint. The inequality 26,700 + 4,250n ≤ $63,750 can be used to determine the number of rooms (n) the hotel can repaint.
Which statement about the number of rooms that can be painted is true?
A.
The hotel can repaint 9 rooms.
B.
The minimum number of rooms that can be repainted is 2.
C.
The maximum number of rooms that can be repainted is 2.
D.
The hotel can repaint 2 rooms, but this number is neither the maximum nor the minimum.
The statement that is true about the number of rooms that can be painted using inequality is; D.
The hotel can repaint 2 rooms, but this number is neither the maximum nor the minimum.
How to solve Inequality Word problems?We are given;
Budget of hotel to repaint the lobby and some hotel rooms; $63750
Amount spent on painting the lobby = $26700
Cost to paint each room = $4250
Thus, the inequality to represent the given situation is;
26,700 + 4,250n ≤ $63,750
where;
n is number of rooms the hotel can repaint
Subtract 26700 from both sides of the inequality to get;
4250n ≤ 37050
n ≤ 37050/4250
n ≤ 8.717
Since we can't paint only a portion, we leave it as a maximum of 8 rooms
Looking at the given options, the only correct one is option D.
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HELP!! WILL MARK BRAINLIEST!!
What is the slope of this line?
Enter your answer as a whole number or a fraction in simplest form in the box.
Answer:
1/4
Step-by-step explanation:
rise/run you can count it but it doesn't always work
If you want to know the mathematical way of doing it it's:
m(slope) = y2-y1/x2-x1 Choose any two points I chose (-4,5) & (0,6)
m = 6-5/0-(-4) Then subtract 6 - 5 and 0-(-4)
m = 1/4
Christina buys coffee for her office mates everyday. Normally she buys just three coffees for $5.55. on special days there are five people in the office who drink coffee. How much will five cost?
Answer:
5 coffees will cost $9.25
Step-by-step explanation:
If you divide $5.55 by the 3 coffees, you get $1.85 which is the price per coffee. Multiply $1.85 by 5 to get $9.25 which is the cost for 5 coffees
Write three quadratic equations that are NOT equivalent, each forming a graph with vertex
(−2,3).
Please explain it
When red is the first one , blue the second and green the third one (and as you can see, all of them share the vertex (-2, 3)).
The vertex of a quadratic equation:
a[tex]x^{2}[/tex]+bx + c = y
is located at :
x = -b/2a.
In this case, x = -2
Then,
-b/2a = -2
And we also have that:
a[tex](-2)^2[/tex] -2b + c = 3
Then we have two equations:
-b/2a = -2
a[tex](-2)^2[/tex] -2b + c = 3
We have only equations and 3 variables, So we can just give the variable c different values and we will find different quadratic equations that are not equivalent.
Let's begin with c = 0 ,Our equations are:
-b/2a = -2
a[tex](-2)^2[/tex] -2b + 0 = 3
In the first equation we can isolate b and get :
b = 4a
Now we can replace this in the other equation and solve this for a.
4a + 4a x -2 = 3
-4a = 3
a = -3/4
then:
b = 4a = 4 x -3/4 = -3
The first quadratic equation is:
(-3/4)[tex]x^{2}[/tex] - 3x = y
Now, To find the second let's use a different value of c.
c = 1
b = 4a
a[tex](-2)^2[/tex] -2b + 1 = 3
Let's solve in the same way as before:
4a + 4a x -2 + 1= 3
-4a = 2
a = 2/-4 = 1/-2
b = 4 x -1/2 = -2
Then our equation is :
(-1/2)[tex]x^{2}[/tex] -2x + 1 = y
For the last equation, let's use c = 2
then our equation are:
b = 4a
a(-2)^2 - 2b +2 = 3
Same as before, replace the first equation in the second
4a + 4a x-2 +2 = 3
-4a +2 = 3
-4a = 1
a = -1/4
Then:
b = 4 x (-1/4) = -1
Our third equation is :
(-1/4)x^2 - x + 2 = y
Now, Below you can see all of them graphed.
When red is the first one , blue the second and green the third one (and as you can see, all of them share the vertex (-2, 3)).
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Which value of a makes the following equation true?
(³) = 125
a = 1
No value of a will work.
a=3
a = 2
Answer:
No value of a will work.
Step-by-step explanation:
let me explain,
given values of a are1,2,3
checking these values of a ,
(1)³=125
1=125 (not true)
(2)³=125
8=125 (not true)
(3)³=125
27=125 (not true)
the correct value of a which makes this equation true is 5. let me make you clear,
(5)³=125
125=125 (true).
Mrs Ali baked some cookies.
She gave away 250 cookies and packed the remaining cookies into bags of 12.
Each bag of cookies was sold for $8.
She received $2016 from the sale of all bags of cookies.
How many cookies did she bake at first?
Answer: 3274 cookies
Step-by-step explanation:
She sold : 2016 ÷ 8 = 252 ( bags )
The remaining cookies : 12 × 252 = 3024 ( cookies )
She baked : 3024 + 250 = 3274 ( cookies )
Which table represents a function?
Answer:
C (the one which starts with x = -2 and y = -1)
Step-by-step explanation:
because for every x value there is only an y value
Which function has the following domain and range?
Domain: {-5, -3, 0, 3, 11)
Range: {4, 0, 2}
O {(-5, 4), (3, 0), (0, 2), (3, 5), (10, -1)}
{(-4,-3), (2, 11), (0, 3), (-4,-5), (0, 0))
O {(3,0), (-3,-4), (11, 2), (0,4), (-5, 0)}
O ((-5, 11), (-4,2}
-
The function which have Domain:{-5, -3, 0, 3, 11} and Range:{4, 0, 2} is {(3,0), (-3,-4), (11, 2), (0,4), (-5, 0)}.
What is Function?
A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output. Each function has a range, co-domain, and domain.
What is domain?
The domain of a function is the set of values that we are allowed to plug into our function.
What is range?
The collection of potential output values for a function is known as its range. For instance, the range is the non-negative real numbers for the function fn(x)=x2 on the domain of all real numbers (x ∈ R), which may be represented as fn(x)≥0 (or [0,∞] using interval notation).
Given:
Domain: {-5, -3, 0, 3, 11)
Range: {4, 0, 2}
If the input of function is a and output is b then it is defined by (a, b).
a always belong to domain and b from range of function.
∴ By using given domain and range set of our answer is {(3,0), (-3,-4), (11, 2), (0,4), (-5, 0)}
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Answer:our answer is {(3,0), (-3,-4), (11, 2), (0,4), (-5, 0)}
Step-by-step explanation:
Each night Liz spends at least 45 minutes and no more than 120 minutes on her phone.
Choose which double inequality describes how long Liz spends on her phone each night.
"n" will be used as your variable.
pls help me its due today
Using the given information, we can write the compound inequality for the variable n:
45 ≤ n ≤ 120
How to write the inequalities?
Here we know that Liz spends at least 45 minutes and no more than 120 minutes on her phone.
So if we define the variable n as:
n = number of minutes that Liz spends on her phone.
We know that n must be larger than or equal to 45, so we can write the first inequality:
45 ≤ n
And we also know that it must be smaller than or equal to 120, then the other inequality is:
n ≤ 120
Combining the two we can write the compound inequality:
45 ≤ n ≤ 120
That is what we wanted to get.
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Name the points. I give you brainiac or whatever.
Answer:
B: (4, 2)
D: (-4, -1)
E: (3, -3)
F: (0, 4)
Step-by-step explanation:
(x-coordinate, y-coordinate)
Answer:
B: (4, 2)
D: (-4, -1)
E: (3, -3)
F: (0, 4)
Step-by-step explanation:
(x-coordinate, y-coordinate)
Find the value of x. Then find the measure of each labeled angle.
(x - 58)° =
(x-58)
Answer:
x° = 119°(x-58)° = 61°Step-by-step explanation:
You want the measures of supplementary angles x° and (x-58)°.
Supplementary anglesConsecutive interior angles where a transversal crosses parallel lines are supplementary.
x° +(x -58)° = 180°
2x = 238
x = 119
x -58 = 61
The two angles are ...
x° = 119°(x-58)° = 61°<95141404393>
Cassidy has $425 in her savings account, and she has to pay $5 each month to her parents for her cell phone. Calvin has $95 and he saves $25 each month from his job walking dogs for his neighbor. At this rate, when will Cassidy and Calvin have the same amount of money? How much will they each have?
Cassidy and Calvin have the same amount of money in 11 months.
The amount is $370.
How to illustrate the equation?Cassidy has $425 in her savings account, and she has to pay $5 each month to her parents for her cell phone. This will be:
= 425 - 5m
Calvin has $95 and he saves $25 each month from his job walking dogs for his neighbor. This will be:
= 95 + 25m
where m = number of months
The equation will be:
425 - 5m = 95 + 25m
Collect like terms
425 - 95 = 25m + 5m
330 = 30m
Divide
m= 330/30
m = 11
The number of months is 11.
The amount will be:
= 425 - 5m
= 425 - 5(11)
= 425 - 55.
= 370
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I had 35 assignments for the week. The ratio for English assignments to the rest of the assignments was 2:3. How many assignments were NOT English?
Answer:
21 Assignments were NOT English.
Fill in the table using the function rule y=5x-2
The table has been shown using the function rule y = 5x - 2. (Refer to the table attached below).
What is the function rule?The relationship between the input or domain and the output or range is known as the function rule. If and only if there is a single value in the range for each domain value, a relation is a function.When the provided input values are applied, the function rule y = 2 x + 4 produces the output values displayed in the table. Now, the output numbers " are represented by and the input values are represented by. Consequently, the expression f (x) = 3 x + 1 can be used to represent the function rule y = 3 x + 1.So, the rule is y = 5x - 2:
Now calculate values as follows:
(A) When x = 0:
y = 0 - 2y = - 2(B) When x = 1:
y = 5 - 2y = 3(C) When x = 2:
y = 10 - 2y = 8(D) When x = 3:
y = 15 - 2y = 13Therefore, the table has been shown using the function rule y = 5x - 2. (Refer to the table attached below)
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A CFL football player has an annual salary of $305 000. The player donates 1/8 of his salary to charity . What amount is this ?
Answer: $38,125
Step-by-step explanation:
1/8*305000
A climbing gym charges $10 to climb each day a player of climbing shoes cost 84 it cost 169 to buy six days of climbing one pair of climbing shoes and one harness how much does a harness cost
If each day a player of climbing shoes cost 84 it cost 169 to buy six days of climbing one pair of climbing shoes and one harness. The amount that the harness cost is $25.
How to find the harness cost?Cost of climbing = ( $10×6)
Cost of climbing = $60
Harness cost = Total cost - (Cost of climbing + Cost of shoes)
Harness cost =$169 - ($60 + $84)
Harness cost =$169 - $144
Harness cost =$25
Therefore $25 is the harness cost.
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Sandy works at a clothing store. She makes $9 per hour plus earns 15% commission on her sales. She worked 76 hours over the last two weeks and had a total of $1,790 in sales before taxes.
Which of the following is closest to how much she will earn in hourly wages and commission for those two weeks?
A.
$953
B.
$371
C.
$684
D.
$269
PLEASE HELP! select all true statement on the graph
In the given graph the correct statements are:
q ⊥ n
m ║ n
p ⊥ m
What are parallel lines and perpendicular lines ?Parallel lines are two straight lines that never intersect and are located in the same plane. They are equidistant lines that are always at the same distance from one another. Parallel lines are denoted by the apostrophe ||. AB || CD, for instance, denotes that line AB and line CD are parallel. Perpendicular lines, on the other hand, are when two lines cross at an angle of 90 degrees. The symbol stands for perpendicular lines. Line PQ is perpendicular to line RS, for instance, if PQ RS. Examine the following illustration and the characteristics of parallel and perpendicular lines to recognize and distinguish between them.
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Annie's mother asked Annie to go buy oranges, dog food, and bug spray. Each square's side length is 1 block. How many blocks will Annie have to walk
in all if she visits the fruit stand, the pet store, and the supermarket, in that order, before returning home?
A. 14 blocks
B. 18 blocks
C. 20 blocks
D. 32 blocks
We can learn from the graph that ANNIE is required to walk 14 blocks.
What is a graph?a diagram that shows how a variable varies in relation to one or more other variables (such as a collection of points, lines, line segments, curves, or regions).: a grouping of all points whose coordinates meet a specific relation (such as a function): a group of edges and vertices connecting pairs of verticesHow to solve a graph.-
TO GRAPHICALLY SOLVE A SYSTEM OF LINEAR EQUATIONSThe first equation is graphed.Using the same rectangular coordinate system, graph the second equation.Identify whether the lines are parallel, intersect, or are one and the same line.Determine the system's remedy. Find the intersection if the lines do indeed meet.acc to the question-
fruit vendor=(-3,7)
pet store-=(-1,6)
supermarket=(1,5)
annie's house=(1,4)
Hence,We can learn from the graph that ANNIE is required to walk 14 blocks.
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Please answer this as soon as possible.
The equation of the transformed graph is y = -2|x| + 2
(graph attached)
What is transformation ?Transformation is a term used in mathematics to refer to the movements made by objects.
How to determine the coordinates of H after transformationinformation from the question
equation of the preimage f(x) = |x|
A graph showing the transformed image
The image show a reflection over x axis, the transformation rule for this is
Transformation rule (x, y) → (x, -y)
applying the rule to f(x) = |x| gives -f(x) = -|x|
followed by translation 2 units up, this achieved by Transformation rule
-f(x) → -f(x) + 2
Then a vertical stretch of 2 units, transformation rule for vertical stretch is
-2f(x) → -2|x| + 2
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