Answer:
2 addition
4 multiplication
Step-by-step explanation:
In step 2 we are adding 6 to each side so we use the addition property of equality
In step 4 we are multiplying by -2 on each side so we use the multiplication property of equality
Answer:
2- addition
4- mult.
Step-by-step explanation:
A freight train leaves a station and travels north at 60 mph. 4 hours later, a passenger train leaves on a parallel track and travels north at 100 mph. How long will it take the passenger train to overtake the freight train? How far from the station will they meet?
Answer:
first do:
60mph * 4 hours= 240mi
Let D = the distance the passenger train has to
travel to catch the freight train
Start a stopwatch when the passenger train leaves
Let t = the time on the stopwatch when they meet
Equation for freight train:
d-240=60t
Equation for passenger train:
d=100t
all together:
100t-240=60t
we can do 100t-60t because they both have (t)= 40t
40t=240 *now divide 240 by 40= 6
THEN do:
D= 100mph x 6= 600mi
They will meet 600 mi from the station
to check:
d-240=60t x 6
600-240= 360
60 x 6= 360
360=360
Three cyclists simultaneously start their movement from the same point at 7 am. Their routes take 10 minutes, 25 minutes and 15 minutes, respectively. When will be the first time that the three cyclists meet again at the starting point?
Answer:
The 3 cyclists will meet at the starting point again after 150 minutes.
Step-by-step explanation:
Since they start at the same point but then take different times to each route, then to find the first time they will each meet at the starting point, we have to find the lowest common multiple (LCM).
Let's use prime factorization to get it.
Prime factorization of 10 = 2 × 5
Prime factorization of 15 = 3 × 5
Prime factorization of 25 = 5 × 5
Thus,super set = 2, 3, 5, 5
Thus,LCM = 2 × 3 × 5 × 5 = 150
Thus,the 3 cyclists will meet at the starting point again after 150 minutes.
The product of¾ xy and 3/4is ____________.
Answer:
9/16xy
Step-by-step explanation:
Multiply through by 3/4
(3/4xy) × (3/4)
numerator =(3×3) = 9
denominator = (4×4) = 16
Simplifying = 9/16xy
What is the solution to the system of equations? y=3x+1 y=-2x-4
Answer:
(-1,-2)
Step-by-step explanation:
The solution is where the two lines intersect
The graphs intersect at x=-1, y=-2
(-1,-2)
Answer:
D
Step-by-step explanation:
The solution to a system of equations given graphically is at the point of intersection of the 2 lines.
The lines intersect at (- 1, - 2 ) ← solution
Let R be a relation on the set of all lines in a plane defined by (l 1 , l 2 ) R line l 1 is parallel to l 2 . Show that R is an equivalence relation.
Answer: hello your question is poorly written below is the complete question
Let L be the set of all lines in XY plane and R be the relation in L defined as R = {(L1, L2): L1 is parallel to L2}. Show that R is an equivalence relation. Find the set of all lines related to the line y = 2x + 4.
answer:
a ) R is equivalence
b) y = 2x + C
Step-by-step explanation:
a) Prove that R is an equivalence relation
Every line is seen to be parallel to itself ( i.e. reflexive ) also
L1 is parallel to L2 and L2 is as well parallel to L1 ( i.e. symmetric ) also
If we presume L1 is parallel to L2 and L2 is also parallel to L3 hence we can also conclude that L1 is parallel to L3 as well ( i.e. transitive )
with these conditions we can conclude that ; R is equivalence
b) show the set of all lines related to y = 2x + 4
The set of all line that is related to y = 2x + 4
y = 2x + C
because parallel lines have the same slopes.
Graph the functions on the same coordinates axis.
What are the solutions to the systems of equation?
Step-by-step explanation:
the answer is in the graph above
use DESMOS app it helps
helpppppppppppppppppppppppppppppp
Answer:
D
Step-by-step explanation:
because the new number is changing to a new and all old is ready.
Solve for x
Need help asap
Answer:
x = 46
Step-by-step explanation:
The angles are corresponding angles and corresponding angles are equal.
2x+4 = 4x-88
Subtract 2x from each side
2x+4 -2x= 4x-2x-88
4 = 2x-88
Add 88 to each side
4+88 = 2x
92 = 2x
Divide by 2
92/2 = 2x/2
46=x
[tex]\huge\textsf{Hey there!}[/tex]
[tex]\mathsf{2x + 4 = 4x - 88}[/tex]
[tex]\huge\textsf{SUBTRACT 4x to BOTH SIDES}[/tex]
[tex]\mathsf{2x - 4 - 4x = 4x - 88 - 4x}[/tex]
[tex]\textsf{CANCEL out: 4x - 4x}[/tex]
[tex]\huge\textsf{NEW EQUATION: -2x + 4 = -88}[/tex]
[tex]\huge\textsf{SUBTRACT 4 to BOTH SIDES}[/tex]
[tex]\mathsf{-2x + 4 - 4 = -88 - 4}[/tex]
[tex]\textsf{CANCEL out: 4 - 4}[/tex]
[tex]\textsf{KEEP: -88 - 4 because it gives you the value of -92 (which helps you solve for}\\\textsf{the x-value)}[/tex]
[tex]\mathsf{-2x = -92}[/tex]
[tex]\huge\textsf{DIVIDE -2 to BOTH SIDES}[/tex]
[tex]\mathsf{\dfrac{-2x}{-2}=\dfrac{-92}{-2}}[/tex]
[tex]\textsf{CANCEL out:} \mathsf{\dfrac{ -2}{-2}}[/tex]
[tex]\textsf{KEEP: }\mathsf{\dfrac{-92}{-2}}\textsf{ because it gives you the answer of x }[/tex]
[tex]\mathsf{\bf x = 46}[/tex]
[tex]\boxed{\boxed{\huge\textsf{Answer: x = \bf 46}^\circ}}\huge\checkmark[/tex]
[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
What is the volume of the pyramid below?
Answer:
12
Step-by-step explanation:
Base area = 3×4/2 = 6 ft²
height = 6 ft
volume = 6×6/3 = 12 ft³
Answered by GAUTHMATH
What is the answer hellllp
Rewrite 13/5 as 26/10
Add the two pieces together:
26/10 + 33/10 = 59/10
Rewrite 7 meters as 70/10
Subtract the two pieces:
70/10 - 59/10 = 11/10 meter left
Place groups of potential participants in order from largest group size to smallest: population, sampling frame, sample, individual being surveyed
Answer:
Population - - > Sampling Frame - - > Sample - - > Individual being surveyed
Step-by-step explanation:
Population is the largest as they include all units or subject of interest in a particular study or experiment. Next is the sampling frame which is the a list or compilation of all subjects which can form part of a sample. It is a compilation of all elements in the population from which the sample can be drawn.
The sample is a subset of the population of population, usually selected at random and it is representative of the population.
The individual surveyed represents a single subject or observation from the chosen sample.
How will the solution of the system y > 2x + 2/3 and y <
2x + 1/3 change if the inequality sign on both inequalities
is reversed to y < 2x + 2/3 and
y> 2x + 1/3?
Answer:
The solution will go from NO common solutions to infinite solutions between the 2 parallel lines.
Step-by-step explanation:
In the original case all solutions for equation 1 are above line 1 (y >) and all solutions for equation 2 are below line 2 (y <), so there is no overlap and therefore no common solutions. When reversed, all solutions for line 1 are below line 1 and all solutions for line 2 are above line 2. So the overlap is everything between the two lines.
Answer:
The shaded area would reverse on both inequalities.
The graphs do not overlap until the signs are reversed.
There are an infinite number of solutions in the system once the signs are reversed.
There are no solutions before they are reversed.
Step-by-step explanation:
edge 2021
x= -5 -4 -3 -2 -1 0
f(x)= 0 -2 6 7 -5 3
What is f(f(-1)?
Answer:
f(f(-1)) = 0
Step-by-step explanation:
Ok I'm assuming that's supposed to be a chart of some kind. So first, you have to find what f(-1) is according to the chart.
According to the chart, if x = -1, then f(-1) is -5
Now comes the next part of the equation. So you need to find f(-5)
-5 was already founded by f(-1) bc it's first in the parantheses.
f(-1) is -5
so we need to find f(-5)
According to the chart f(-5) is 0
So ur final answer is gonna be 0
Trey took 5/4
hours to clean the bedroom. He took1/2
hours to clean the den. How much longer did it take Trey to clean the bedroom?
Write your answer as a mixed number in simplest form.
Answer:
3/4 more hours
Step-by-step explanation:
Hours taken to clean bedroom = 5/4
Hours taken to clean den = 1/2
How much more = 5/4 - 1/2
5-2/4 (common denominator)
3/4 more hours (It's a propper fraction, so we can't write it as a mixed number)
Answer from Gauthmath
HELP BRAINIST AND POINT
Answer:
90 degrees
Step-by-step explanation:
general Pythagoras
c² = a² + b² - 2ab×cos(ABC)
with c being the side opposite of the angle ABC.
c = AC
a = AB
b = BC
(0-15)² + (0-0)² = (0-9.6)² + (0-7.2)² + (9.6-15)² + (7.2-0)² - 2×sqrt((0-9.6)²+(0-7.2)²)×sqrt((9.6-15)²+(7.2-0)²)×cos(ABC)
225 = 92.16 + 51.84 + 29.16 + 51.84 - 2×12×9×cos(ABC)
225 = 144 + 81 - 216×cos(ABC)
225 = 225 - 216×cos(ABC)
0 = cos(ABC)
ABC = 90 degrees
Can someone explain how you got the answer!!
9514 1404 393
Answer:
20 square units
Step-by-step explanation:
The area is given by the formula ...
A = bh
where b is the base of the parallelogram, and h is the perpendicular distance between the parallel bases. Using the numbers from the figure, we have ...
A = 5·4 = 20 . . . . square units
_____
Additional comment
You will notice this is the same formula as is used for a rectangle. You can consider the parallelogram to have the same area as a rectangle of these dimensions if you look at what happens when you cut the right triangle from the right end and add it to the left end. The result is a rectangle 5 units wide and 4 units high.
The same formula applies even if the skew is so great that the bases do not overlap. (That much skew would not result in a triangle of the kind shown in this diagram.)
i need help i can't get the right answer
Answer:
x = 50
Step-by-step explanation:
I guess, this diagram tells us that the lines are parallel.
that means that they cut the third line at the exact same angles.
and that means
3x - 26 = 2x + 24
x - 26 = 24
x = 50
3x-26=2x+24
3x-2x=24+26
x=50
please mark this answer as brainlist
3) Solve the System of Equations using Elimination/Combinations. (5 points)
-2x-y=-4
x+2y=5
Please explain how u did it… thanks! <3
Answer:
(1, 2 )
Step-by-step explanation:
Given the 2 equations
- 2x - y = - 4 → (1)
x + 2y = 5 → (2)
Multiplying (2) by 2 and adding result to (1) will eliminate x- term
2x + 4y = 10 → (3)
Add (1) and (3) term by term to eliminate x
0 + 3y = 6
3y = 6 ( divide both sides by 3 )
y = 2
Substitute y = 2 into either of the 2 equations and solve for x
Substituting into (2)
x + 2(2) = 5
x + 4 = 5 ( subtract 4 from both sides )
x = 1
solution is (1, 2 )
consider the lines and the transversal drawn in coordinate plane below.
Answer:
i dont know man
Step-by-step explanation:
i dont know
What additional information is needed to prove that the triangles are congruent using the AAS congruence theorem?
Answer:
You need to know that pairs of two angles are congruent and the pair of sides adjacent to one of the given angles are congruent
find the area to this question
Answer:
170.54m²
Step-by-step explanation:
there are three shapes
triangle: is 1/2*3*5=7.5
square is 6*5=30
circle=3.14*6²=133.04
7.5+30+133.04=170.54
answer is 170.54
URGENT, please help? i need itt
Answer:
Step-by-step explanation:
The fraction 6 3/4 is closer to 7 than it is to 6; the fraction 1 2/3 is closer to 2 than it is to 1. So the best estimation is the first choice, 7 / 2.
Answer:
7 ÷ 2
Step-by-step explanation:
4.05 -3.5 =0.55
4.05 - 6 =-1.94
4.05 -2.66 =1.38
4.05 -1.5 =2.55
Help please I don’t understand this
Answer:
x=-2
sorry i messed up coord val :/
Step-by-step explanation:
Answer:
x = -2
Step-by-step explanation:
a parabola is symmetric (has a mirror image)
a parabola has ONE vertex (a highest or lowest point).
thus a line that goes through the vertex is it's axis of symmetry.
x = 5 , x=99, x=102 are vertical lines that intersect the x axis no matter what the y value is....
your axis of symmetry is a line that looks like X= SOMETHING
the "something" is the X value of the vertex, which is (-2,3)
this the equation x = -2 is the answer ... see the image
The function g(x) = \frac{1}{2}\left| {x} \right|g(x)= 21 ∣x∣ is a transformation of the absolute value parent function. Which graph shows g(x)?
Answer:
A
Step-by-step explanation:
From what we have , it is expected that the parent function is a v-shaped graph that starts from the origin
The expected equation parent function should be;
y = |x|
Now, moving on, the transformed function is 1/2 of the parent function
This shows a direct compression of the initial partner function
So, it is expected that the transformed function is more compressed compared to the initial parent function
so, the correct choice of answer here is first option
The Answer is Graph D
You can see the graph number on the top left corner of each multiple-choice graph.
please answer will give brainliest
Answer: 29152332 ≡ 0 (mod 3)
Step-by-step explanation:
In modular arithmetic, there is the form a ≡ b (mod m) where b is the remainder.
To solve this problem, we want to divide 29152332 by 3 and find the remainder.
29152332 ÷ 3 = 9717444
Since we get an integer with no remainder, we know the answer is 29152332 ≡ 0 (mod 3).
The profitability, P, of a popular restaurant franchise can be modeled by the function P (t) = t4 – 10t3 + 28t2 – 24t, where t is the number of months since the restaurant opened. How many months after the franchise opens will it begin to show a profit?
A. 0 months
B. 2 months
C. 4 months
D. 6 months
In this question, the profit of the restaurant after t months is given by a polynomial function. To find when it begins to show a profit, we find the numerical values of the function for t, and it shows a profit when [tex]t > 0[/tex]
Profit after t months:
[tex]P(t) = t^4 - 10t^3 + 28t^2 - 24t[/tex]
0 months:
This is P(0). So
[tex]P(0) = 0^4 - 10*0^3 + 28*0^2 - 24*0 = 0[/tex]
1 month:
This is P(1). So
[tex]P(1) = 1^4 - 10*1^3 + 28*1^2 - 24*1 = -5[/tex]
2 months:
This is P(2). So
[tex]P(2) = 2^4 - 10*2^3 + 28*2^2 - 24*2 = 0[/tex]
3 months:
This is P(3). So
[tex]P(3) = 3^4 - 10*3^3 + 28*3^2 - 24*3 = -9[/tex]
4 months:
This is P(4). So
[tex]P(4) = 4^4 - 10*4^3 + 28*4^2 - 24*4 = -32[/tex]
5 months:
This is P(5). So
[tex]P(5) = 5^4 - 10*5^3 + 28*5^2 - 24*5 = -45[/tex]
6 months:
This is P(6). So
[tex]P(6) = 6^4 - 10*6^3 + 28*6^2 - 24*6 = 0[/tex]
7 months:
This is `P(7). So
[tex]P(7) = 7^4 - 10*7^3 + 28*7^2 - 24*7 = 175[/tex]
After 7 months it shows profit, so it starts showing profit on the 6th month, and thus, the correct answer is given by option D.
For another example of a function involving numeric value, you can check https://brainly.com/question/24231879
What is the circumference of a circle with a diameter of 6 feet? Use 3.14 for pie.
Answer:
18.84
Step-by-step explanation:
Answer:
18.84
Step-by-step explanation:
5. Which question is a statistical question?
Select Yes or No.
A. How long is lunch period at your school?
O Yes
Ο O No
B. How old is the oldest student in your
class? be
O Yes Ο Νο
C. How many classrooms are there in the
buildings of your school?
O Yes
D. What are the ages of all the people in
Ο O No
your class?
O Yes
Ο O No
What is the image of (1, -6) for a 90° counterclockwise rotation about the origin?
(-6, -1)
(-1, -6)
(-1, 6)
(6, 1)
Answer:
D
Step-by-step explanation:
As the counter clockwise rule is A(x,y) becomes A'(-y,x).
So (1, -6) becomes (6, 1)
Hope it helps you
helpppp plzzz i have till 2 plzzz
Answer:
Yes, because 1 & 2 have to be the same
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
Supplementary means 180 degree.
∠1 + ∠3 = 180 ----> eq. 1
∠2 and ∠3 are linear pair angles which are also supplementary.
∠2 + ∠3 = 180 ----> eq. 2
∠3 = 180 - ∠1 ----> eq. 3
( from eq. 1 )
∠3 = 180 - ∠2 ----> eq. 4
( from eq. 2 )
From, eq. 3 and eq. 4,
180 - ∠1 = 180 - ∠2
Subtract 180 on both sides.
180 - 180 - ∠1 = 180 - 180 - ∠2
- ∠1 = - ∠2
Multiply - 1 on both sides,
∠1 = ∠2
Since,
∠1 = ∠2
Sides opposite to them also equal
So, AC = BC
If any two sides in a triangle is equal, then the triangle is an isosceles triangle.
Therefore,
Δ ABC is isosceles.