Answer:
0.
-12 + 12 = 0
Step-by-step explanation:
3(-4) + 6(2) (multiply)
-12 + 12 = 0
15. Examine the figure below.
If C is the midpoint of BD, what is the coordinate of point C if point B is at 0?
Answer:
13
Step-by-step explanation:
Given:
BC = 2x + 7
CD = x + 10
Coordinate of point B = 0
Required:
Coordinate of point C
SOLUTION:
Since C is the midpoint of BD, therefore:
BC = CD
2x + 7 = x + 10 (substitution)
Collect like terms
2x - x = -7 + 10
x = 3
BC = 2x + 7
Plug in the value of x
BC = 2(3) + 7 = 6 + 7
BC = 13
Thus, the coordinate of point C would be a distance of 13 units away from the coordinate of point B.
Since the coordinate of B is 0, 13 units away from 0, would be 13.
Therefore, the coordinate of point C = 13
The coordinate of point C if If C is the midpoint of BD will be (0, 13)
From the given diagram, if C is the midpoint of BD, hence;
BC + CD + BD
Given the following parameters
BC = 2x + 7
CD = x + 10
Since C is the midpoint of BD, hence BC = CD
2x + 7 = x + 10
2x-x = 10 - 7
x = 3
Get the measure of BC:
BC = 2x + 7
BC = 2(3) + 7
BC = 13 = CD
Hence the coordinate of point C will be (0, 13)
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Graph each pair of linear equation in one coordinate plane.
Graph po pls
The pair of linear equations graphed using a graphing software. The graphs are attached below :
Graph 1 :
x = 2x + 2 - - - - (1)
2y = 4x + 4 ;
Divide both sides by 2
y = 2x + 2 - - - - - (2)
Hence, the graph would be follow the same trends as the functions are the same.
Graph 2 :
y = x - 5 - - - - - - (1)
y = - x + 3 - - - - - (2)
The pair of lines intersect each other as seen on the graph.
Graph 3 :
y = 2x - 3 - - - - (1)
y = 2x + 4 - - - - (2)
Both Lines are parallel to one another.
The attached graphs are in the attachment below.
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3 decagrams = centgrams
Answer:
3,000
Step-by-step explanation:
Just multiply every decagram by 1,000
Samuel graphed the equation y = 2x + 2, and Monika graphed the equationy = -2x + 2. How do their two graphs compare?
A. As you trace their graphs from left to right, Samuel's graph rises and Monika's graph
falls.
B. As you trace their graphs from left to right, Samuel's graph falls and Monika's graph
rises.
C. Samuel's graph is a parabola that opens up, and Monika's graph is a parabola that
opens down.
D. Samuel's graph is a parabola that opens to the right, and Monika's graph is a
parabola that opens to the left.
Answer:
A
Step-by-step explanation:
Because if you look up y=2x+2 that graph rises and if you look up y=-2x+2 it decreases
A train freight car weighs 25 tons when empty. A conveyor belt pours coal into the car at a constant rate of 1/3 ton per minute until it is full.
The dump truck (Refer to problem 8) weighs 55 tons when filled. At the same time the freight car is being filled, an identical freight car filled
to capacity is being emptied at a rate of 1/6 ton per minute.
How long, in minutes, until the freight cars are the same weight?
The tucks will weigh the same in
minutes.
How much coal will be in each truck when they weigh the same?
There will be
tons of coal in each truck.
Step-by-step explanation:
Step one:
mass of Freight car=25tons
the rate of filling is 1/3 ton per minute
let the time taken to fill the freight car be x
and the total mass after x minute be y
Hence the mass as a function of time is expressed as
y=25+1/3x----------1
mas of dump truck=55tons
rate of being emptied= 1/6 tons per minute
let the time taken to empty the dump truck be x
and the total mass after x minute be y
Hence the mass as a function of time is expressed as
y=55-1/6x----------2
Step two:
equating equations 1 and 2,
1. The tucks will weigh the same in
55-1/6x=25+1/3x
collect like terms
55-25=1/3x+1/6x
30=(2+1/6)x
30=3/6x
30=1/2x
30=0.5x
x=30/0.5
x=60min
or
1 hour
The tucks will weigh the same in 60minutes(1 hour)
2. How much coal will be in each truck when they weigh the same?
For the train freight car, the weight after 60 minutes is
y=25+1/3(60)
y=25+20
y=55tons
55-25=20tons
There will be 20tons
For the dump truck, the weight after 60 minutes is
y=55-1/6(60)
y=55-10
y=45tons
55-45=10tons
There will be 10tons
can y^4 / x^3 be simplify
Answer:
Nope! Thats as simplified as it gets!
Answer:seems like it cant
Step-by-step explanation:
If PQ + RS = PS and RS = XY, then PQ + XY = PS.
a. Symmetric Property
b.Segment Addition Postulate
c.Substitution Property
d. Transitive Property
Answer:
B. Substitution Property
Step-by-step explanation:
Transitive property would be TX=GH and GH=PS then TX+PS
The substitution property of equality is one of many equality properties used to simplify expressions and solve equations.
If PQ + RS = PS and RS = XY, then PQ + XY = PS is an expression using substitution property.
What is substitution property?The substitution property states that 'If a variable x is equal to another variable y, then x can be substituted in place of y in any expression and y can be substituted in place of x in any expression.
We have,
If PQ + RS = PS and RS = XY, then PQ + XY = PS.
We are substituting RS with XY on PQ + RS = PS.
We get,
PQ + XY = PS
This expression has been solved using the substitution property.
Thus, If PQ + RS = PS and RS = XY, then PQ + XY = PS is an expression using substitution property.
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Suppose x = 0.5(300-x). What is the value of x?
A.300
B.150
C.100
D.50
Answer:
The answer is C 100
Step-by-step explanation:
A square carpet of side length 9 feet is designed with one large shaded square and eight smaller, congruent shaded squares, as shown.If the ratios $9:\text{S}$ and $\text{S}:\text{T}$ are both equal to 3 and $\text{S}$ and $\text{T}$ are the side lengths of the shaded squares, what is the total shaded area?
Answer:
[tex]3\sqrt{3} + 72[/tex]
Step-by-step explanation:
I attached an image to aid the understanding of the question.
Looking at the image, we see that the 8 shaded parts are congruent, as affirmed in the question as well. And we are told that T = 3, this implies that the area of the square with T as it's side is 9ft². Since all the 8 squares are congruenrt, it means each square has its area to be 9. Therefore, the total area of the 8 shaded squares will be:
[tex]9 \times 8 = 72ft^{2}[/tex]
It remains the area of the shaded square with side S.
From the question, we have the following ratio:
[tex]\frac{9}{S} = \frac{S}{T}[\tex]
But
[tex]\frac{9}{S} = \frac{S}{3}[\tex]
Multiplying through by 3S we have
27 = S² and this gives:
[tex]S = \sqrt{27} = 3\sqrt{3}[/tex]
I did not add ± because length is always positive, so the case of negative is eliminated.
Now the areas of S is [tex]3\sqrt{3}[/tex]
Therefore, the total area of the shaded squares is
[tex]3\sqrt{3} + 72[/tex]
Answer:
17
Step-by-step explanation:
We are given that [tex]$\frac{9}{\text{S}}=\frac{\text{S}}{\text{T}}=3.$\[\frac{9}{\text{S}}=3\][/tex]gives us S=3, so[tex]\[\frac{\text{S}}{\text{T}}=3\][/tex]gives us T=1. There are 8 shaded squares with side length [tex]$\text{T}$[/tex] and there is 1 shaded square with side length [tex]$\text{S},$[/tex] so the total shaded area is [tex]$8\cdot(1\cdot1)+1\cdot(3\cdot3)=8+9=\boxed{17}.$[/tex]
Determine the number of solutions to each system of equations.
Please put all of the equations in either One Solution, No Solution, or Infinitely Many Solution boxes
DUE TONIGHT
Answer:
One Solution:
y=0.5x-2 ; y=-0.5x+4y=2x+1 ; y=-4x+1No Solution:
y=0.5x+1 ; y=0.5x+5y=-x-3 ; y=-x+3Infinity many solutions:
y=-x-2 ; y=-x-2y=3x+2.5 ; y=3x+2.5Step-by-step explanation:
We will see the system of equations one by one.
First system of Equation:
[tex]y = 0.5x-2\\y=-0.5x+4[/tex]
It can clearly be seen that the two lines formed by the given equations are in opposite direction and they will have one intersection point so only one solution
Second System of Equation:
[tex]y=0.5x+5\\y=0.5x+1[/tex]
This system also has no solution as the equations represent parallel lines and if we try to solve them we will get the solution in the form 0 = constant.
Third System of Equations:
[tex]y =2x+1\\y = -4x+1[/tex]
The given equations will have a unique solution because the lines have different slopes or when graphed, they will have an intersection point.
Fourth System of Equations:
[tex]y=3x+2.5\\y=3x+2.5[/tex]
The lines formed by these lines will overlap each other so there will be infinity many solutions.
Fifth System of Equations:
[tex]y=-x-3\\y=-x+3[/tex]
These equations represent parallel lines so there will be no solution.
Sixth System of Solution:
[tex]y=-x-2\\y=-x-2\\[/tex]
The system will have infinite number of solutions
Hence,
One Solution:
y=0.5x-2 ; y=-0.5x+4y=2x+1 ; y=-4x+1No Solution:
y=0.5x+1 ; y=0.5x+5y=-x-3 ; y=-x+3Infinity many solutions:
y=-x-2 ; y=-x-2y=3x+2.5 ; y=3x+2.5Answer:
the first answer is correct
Step-by-step explanation:
hi, can someone help me on a p e x? learning
Sure whats the problem?
The value of the expression 5³ is 125.
We have,
The concept used in calculating the value of 5 raised to the power of 3 is exponentiation.
In mathematics, exponentiation is an operation that involves raising a base number to a certain power.
The base number (in this case, 5) is multiplied by itself repeatedly, where the number of times it is multiplied is determined by the exponent (in this case, 3).
When we raise 5 to the power of 3, we can interpret it as multiplying 5 by itself three times:
5³ = 5 x 5 x 5 = 125
So, the concept of exponentiation allows us to quickly calculate the result of multiplying a number by itself multiple times, where the exponent indicates the number of repetitions.
Thus,
The value of the expression 5³ is 125.
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The complete question:
What is the value of 5 raised to the power of 3?
Is the line that passes through (8,-4) and (3,6) perpendicular To y=1/2x-4?
Show your work if you can
Thank you!
9514 1404 393
Answer:
yes, the lines are perpendicular
Step-by-step explanation:
A graph of the line through the points (8, -4) and (3, 6) shows it has a slope of -2. That is the opposite reciprocal of the slope of 1/2 that the given line has.
When two lines have opposite reciprocal slopes, they are perpendicular.
The lines are perpendicular.
__
If you like you can compute the slope using the slope equation:
m = (y2 -y1)/(x2 -x1)
m = (6 -(-4))/(3 -8) = 10/-5 = -2
PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ HELP FOR BOTH OF THEM
Answer:
7) B, C
8) D
Step-by-Step-Explanation:
The first thing you need to solve for is the the parenthesis
the second one simplifies to x ≤ -7
Explain in your own words why you would use division to change a smaller unit to a bigger one . What would happen if you multiplied instead ? TOPIC IS MEASUREMENT
Answer:
you would use division to change bigger units into smaller ones as a form of cancellation
HELPPPPPPPPPPPPPPPPPPPPPPPPPPP.
Square KLMN with vertices K(0,2), L(1,8), M(7,7), and N(6, 1): 270 counterclockwise about the orgin
Note: Consider we need to find the vertices of the image.
Given:
Square KLMN with vertices K(0,2), L(1,8), M(7,7), and N(6, 1).
It rotates 270 counterclockwise about the origin.
To find:
The vertices of the image after rotation.
Solution:
If a figure rotates 270 counterclockwise about the origin, then the rule of rotation is defined as
[tex](x,y)\to (y,-x)[/tex]
Using this rule, we get
[tex]K(0,2)\to K'(2,0)[/tex]
[tex]L(1,8)\to L'(8,-1)[/tex]
[tex]M(7,7)\to M'(7,-7)[/tex]
[tex]N(6,1)\to N'(1,-6)[/tex]
Therefore, the vertices of the image are K'(2,0), L'(8,-1), M'(7,-7) and N'(1,-6).
What is the larger number: 5 or the Square Root of 26. Why?
Step-by-step explanation:
square root of 26
becoz √26=5.099
=5.1
Answer:
square root of 26
Step-by-step explanation:
this is because when 26 is squared it equals 5.09902, so 5.1 is greater than 5
Britney already owns 65 necklaces, and additional necklaces are priced at 2 for a dollar. How much money does Britney need to spend on new necklaces in order to own a total of 133 necklaces? Write and solve an equation to find the answer
Answer:
I think the answer is 136
Answer:
Step-by-step explanation:
First, we subtract 133-65 to find out how many new necklaces she need to buy
The answer is 68
Now, two necklaces costs $1, meaning one necklace costs ¢50, or $0.50.
So, we just multiply the number of necklaces (68) by the cost per necklace (0.5)
68×0.5=34
she will need to spend $34 to have a total of 133 necklaces
Which number would make this statement true?
<8.9
9.1
8.91
8.09
8.99
Answer:
8.09
9.1 is obviously greater than 8.9, when you compare the numbers.
And the other numbers are all 8 in the ones place (to the left of the decimal). So, you have to look at the number in the tenths place (to the right of the decimal). 8.09 has a "0" in the tenths place, & 8.9 has a "9" in the tenths place, making 8.09 less than 8.9.
If you compared the 2 remaining numbers 8.91 & 8.99, they would both be greater, because since they all have the same number in the tenths place, you have to move on to comparing the next number, which would be in the hundreths place (2 digits to the right of the decimal).
what type of number is -3? A.rational. B. irrational C. whole number D. natural
Answer:
whole number
Step-by-step explanation:
its not a decimal and its not a fraction
To the nearest millimeter, a cell phone is mm long and mm wide. What is the ratio of the width to the length?
Answer:
38:90, or if simplified 19:45.
This question is easy, but the person who answers this gets 100 points! Be fast!
What is (4 x 4) x ((5^2) x 1)
A. 500
B. 400
C. 50
D. 40
Answer:
B. 400
Step-by-step explanation:
4×4 =16
5^2 = 25
25×1= 25
16×25= 400
Farmer collected 225 eggs from his 25 chickens. If each chicken laid the same how much would each chicken had laid
Answer:c
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
225 divided by 25 is 9.
Nila bought a "buy-one-take-one" bag. She paid Php 1, 256. How much did each bag cost
Answer: Php 628
Step-by-step explanation:
Nina got two bags but paid for the price of one according to the sale.
The cost of each bag will therefore be the total price divided by 2 which is;
= 1,256/2
= Php 628
Which transformation(s) can be used to map one triangle onto the other? Select two options reflection only translation only dation, then translation rotation then translation rotation then dilation
Answer: a reflection could i think
Step-by-step explanation:
Answer: A & C
Step-by-step explanation:
i need this asap!! will give brainliest and a thanks!
Answer:
Tess = 71 y/o
Nina = 63 y/o
Katy = 55 y/o
Step-by-step explanation:
First step: divide their age equally.
189÷3 = 63 years old / person
Second step: calculate the different between their age.
Tess>Nina>Katy
Different between:
Katy and Tess
= 16 years
Nina and Katy
= 8 years
Tess and Nina
= 16–8
= 8 years
Third step: Calculate their age.
Tess = 63+8
= 71 years old (because she is 8 years older than Nina and 16 years older than Katy)
Nina = 63 years old ( it doesn't change because she is in the middle)
Katy = 63–8
= 55 years old (because she is 8 years younger than Nina and 16 years younger than Tess)
To confirm, you can sum their age and check the age differences like what have been told in the question either it is correct or not.
71+63+55
= 189 years
Chris paid $9.18 for a necklace. This amount includes a sales tax of 8%. What was the
cost of the necklace before tax?
Answer:
8.5
Step-by-step explanation:
What is the value of when x=15
Answer:
Value of what?
Step-by-step explanation:
Put your question DB and I'll answer!
Answer:
x = 15
Step-by-step explanation:
x = 15 means that if you have 1 + x and plug in the 15 for x, 1 + 15 you will get 16.
Note: I'm not quite sure what the question is on this one, but I hope I could help.
Select the section(s) of the graph where the function is decreasing.
1. blue line
2. red line
3. curved blue line
4. green line
can be more than one
The graph where the function is decreasing is represented by, the blue line, red line and the green line.
What is decreasing function?"If the value of the function f(x) is decreasing on increasing the value of x, then the function is called as decreasing function."
For given situation,
we have been given a piecewise function and its graph.
From the graph of a function,
we can observe that the function f(x) is decreasing for x < -3 , -3 ≤ x ≤ 0, and x > 0
This is represented by, the blue line, red line and the green line
Therefore, the correct options are 1, 2, 4.
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If the scale factor is 4, what do you do with that scale factor to find the new perimeter and new area of the dilated figure?
Answer:
4/4=1
Step-by-step explanation:
work out the size of angle x
give reasons for your answer
Answer:
80°
Step-by-step explanation:
because a straight parallel line is 180°
Answer:
x=100°
because line AD//EH
therefore alternate angle are equal
so x=100°