Answer:
Straight lines and Curves with tangents
Step-by-step explanation:
Simultaneous equations system
What is the domain of the relation {(8, 4), (10, –3), (12, 0), (18, –1)}? {–3, –1, 0, 4} {4, 8, 10, 12, 18} {8, 10, 12, 18} {–3, –1}
Answer:
{8, 10, 12, 18}
Step-by-step explanation:
The domain of a given relation are all the x-values or inputs.
Locate the inputs:
{(8, 4), (10, –3), (12, 0), (18, –1)}
The domain in this given relation is {8, 10, 12, 18}.
Hope this helps.
6) Andy is going kyacking. He has $341 to spend on parking and paddles. Parking costs $30 and paddles cost $45. 20 per person. Determine how many people can go kyacking
What is the domain of the given relation (1, 2), (8, 15), (-3, 11),
(-15, 85)?
Answer:
1,8,-3,-15
Step-by-step explanation:
A two digits number is seven times the sum of its digits . The number formed by reversing the digits is 18 less than the original number. Find the number .
Hey there!
10x+y=7(x+y)=7x+7y
or 10x−7x=7y−y
or 3x=6y
or x=2y ........(1)
Number formed by reversing the digits is yx, i.e.,
10y+x=10x+y−18
Substituting x=2y, we get
10y+2y=10×2y+y18
or 2y=21y−18
or 21y−12y=18
or 9y=18
or y=2
∴x=2y=2×2=4
Therefore, the number is 42.
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
Let the two digit number be ' xy '
where, x is the ten's place digit, and y is one's place digit, now let's proceed further ~
The origin number can be written as :
[tex]\qquad \sf \dashrightarrow \: 10x + y[/tex]
[ because x is at ten's place ]
of the digits are swapped, the new number will be :
[tex]\qquad \sf \dashrightarrow \: 10y + x[/tex]
According to conditions provided in the question : -
[tex]\qquad \sf \dashrightarrow \: 10x + y = 7 \times (x + y)[/tex]
[tex]\qquad \sf \dashrightarrow \: 10x + y = 7x + 7y[/tex]
[tex]\qquad \sf \dashrightarrow \: 10x - 7x + y - 7y= 0[/tex]
[tex]\qquad \sf \dashrightarrow \: 3x - 6y = 0 \: \: \: \: \: \: [/tex]
[tex]\qquad \sf \dashrightarrow \: x - 2y = 0 \: \: \: \: \: \: - (1)[/tex]
here we got our first equation, let's find the other one ~
[tex]\qquad \sf \dashrightarrow \: (10x + y) - 18= 10y + x[/tex]
[tex]\qquad \sf \dashrightarrow \: 10x - x + y - 10y = 18[/tex]
[tex]\qquad \sf \dashrightarrow \: 9x - 9y = 18[/tex]
[tex]\qquad \sf \dashrightarrow \: x - y = 2 \: \: \: \: \: \: - (2)[/tex]
we got our second equation ~
Now it's time to subtract equation (1) from equation (2) :
[tex]\qquad \sf \dashrightarrow \:( x - y ) - (x - 2y)= 2 - 0[/tex]
[tex]\qquad \sf \dashrightarrow \: \cancel{x }- y - \cancel{x} + 2y= 2 - 0[/tex]
[tex]\qquad \sf \dashrightarrow \: y= 2 [/tex]
hence, value of y is 2, use this value in equation (2) to find x ~
[tex]\qquad \sf \dashrightarrow \: x - y= 2 [/tex]
[tex]\qquad \sf \dashrightarrow \: x - 2= 2 [/tex]
[tex]\qquad \sf \dashrightarrow \: x = 4 [/tex]
Therefore, the required number is xy = 42
a*b= 2ab find 2*4
please i need your help.
Answer:
16Step-by-step explanation:
solna*b=2ab2*4=2ab =2×2×4 =4×4 =16 answerA 12,000 seat arena is divided into 60 equal sections of 200 seats. In order to
estimate the attendance at an event, management takes a sample from one of these
sections. At a recent event, 174 people were counted in this sample section. What
was the estimated attendance at this recent event?
Answer:
10,440
Step-by-step explanation:
There is 12k seats in total. 60 sections containing 200 seats. In 1 section of 200 they counted 174 people. Therefore you multiply 174 by 60. 174 being the people in 1 section and 60 being the total number of sections.
Label the place value of 74.92.
Answer: 7 tens, 4 ones, 9 tenths, and 2 hundredths.
Mike made four of his truck payments late and was fined four late fees. If each late fee was $10, how much did he pay in late fees?
Answer:
$40, how I got this is I took $10 * 4 late fees and there is your $40
Eight times a number is the same as 30 less than 5
times the number. Find the number?
Answer:
2.30
Step-by-step explanation:
Triangle TRW is shown on the coordinate grid. x, y, t, r, w Triangle TRW will be dilated by a scale factor of n with the origin as the center of dilation to create triangle T′R′W′. Which ordered pair best represents the location of point R′?
Dilating the triangle TRW would change the size of the triangle
The ordered pair that best represents the location of point R′ is (nRx,nRy)
How to determine the ordered pair?The coordinates of the point R would be represented as:
R = (Rx,Ry)
The scale of dilation (k) is given as:
k = n
Given that the center of dilation is the origin, the location of point R' would be:
R' =R * k
So, we have:
R' = (Rx,Ry) * n
Evaluate the product
R' = (nRx,nRy)
Hence, the ordered pair that best represents the location of point R′ is (nRx,nRy)
Read more about dilation at:
https://brainly.com/question/3457976
Answer: (−3n, −5n)
I did the test
I need help !!!!
Gene says that -2 1/8 is less than -2.25 is he correct explain your answer !
Your friend has a recipe book with 1,000 recipes. She wants to try two new recipes each week. What fraction of the recipes in the book will she have tried after 1 year?
Answer:
104/1000
Step-by-step explanation:
If she tries two each week you will need to know how many weeks are in a year.Now about 52 weeks are in a year so you would multiply 52 by 2 and get 104.
Here, we need to find the fraction of recipes she would have tried in the book after 1 year
The fraction of recipes she would have tried in the book after 1 year is 13/125
Total recipes in the book
[tex] = \frac{Total recipe she tried in a year}{Total recipes in the book } [/tex]
= 1,000
Recipe tried each week = 2
Find the fraction of recipe she would have tried after 1 year
There are 52 weeks in 1 year
she tried 2 recipes each week
Total recipe she tried in a year
=
[tex] = total \: number \: of \: weeks \: in \: a \: year \: \times number \: of \: recipe \: tried \: per \: week[/tex]
[tex] = 52 \times 2[/tex]
[tex] = 104[/tex]
fraction of recipe she would have tried after 1 year
[tex] = \frac{Total recipe she tried in a year}{Total recipes in the book } [/tex]
= [tex] \frac{104}{1000} [/tex]
Divide by 8
= 13/125
Read more:
https://brainly.in/question/39091669
Find the area of the triangle:
Height :5a + 7
base :18
Answer:
A = 45a + 63 square units
Step-by-step explanation:
Formula of the area of a triangle: [tex]\frac{1}{2}bh[/tex]
Plug in givens:
[tex]\frac{1}{2}(18)(5a+7)\\ \frac{1}{2}(18)(5a+7)\\9(5a+7)\\45a + 63[/tex]
Mathhhhhh helpieeeeee please.
Answer:
vertical angles - angle 2 and 4, angle 1 and 3
adjacent angles- angle 2 and 3, angle 1 and 4
HELP 100 POINTS What is the measure of ∠A in the image below?
Answer:
A. m∠A = 45°
Step-by-step explanation:
Vertical angle theorem: opposite angles are congruent
⇒ 3x = x + 30
⇒ 2x = 30
⇒ x = 15
As m∠A = 3x
⇒ m∠A = 3 × 15 = 45°
Opposite angles are equal
[tex]\\ \rm{:}\dashrightarrow 3x=x+30[/tex]
[tex]\\ \rm{:}\dashrightarrow 2x=30[/tex]
[tex]\\ \rm{:}\dashrightarrow x=15[/tex]
So
<A=3(15)=45help? i will give brainliest
Answer: line is never ending in both directions
ray is never ending in one direction
Step-by-step explanation:
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
The answer is
→ [tex]A.)[/tex] [tex]2\frac{1}{4}[/tex]
Step-by-step explanation:
Option A is the answer because the line after letter B should be 2.5, and were talking about the one between 2 and 2.5. Which means that, Option A should be your correct answer.
(HELP)
Line L has the equation y = -2x - 3.
Line M is perpendicular to Line L and intersects the y-axis at (0,9)
Write Down the equation of Line M in the form y=mx+c
Answer:
[tex]y=\dfrac12x+9[/tex]
Step-by-step explanation:
The product of the slopes of perpendicular lines is -1
Given the slope of Line L is -2, this means that the slope of Line M will be:
[tex]\dfrac{-1}{-2}=\dfrac12[/tex]
[tex]\sf as \ \dfrac12 \cdot -2 = -1[/tex]
If Line M intersects the y-axis at (0, 9) then its y-intercept is 9.
Slope-intercept of a linear equation: [tex]y = mx + c[/tex]
(where m is the slope and c is the y-intercept)
Therefore, the equation for Line M is:
[tex]y=\dfrac12x+9[/tex]
Find the curved surface area of a cone with base diameter 30 cm and height 40cm.
Answer:
the diameter of the base is 15cm. Find the curved surface area of cone. Solution: Given that, Slant height: l = 20cm
Slant = root of 30^2 + 40^2 = 50
Curved surface area = pi *r*l
pi*15*50
= 750*pi = 750*3.14
= 2355 cm ^2
Evaluate.
4⋅(4+(2^6⋅2^−3) )
A. 48
B. 24
C. 12
D. 2
Answer:
4+(64x1/8)=4+8=12
[tex]4 \times (4 + ( {2}^{6} \times {2}^{ - 3})) = [/tex]
[tex]4 \times (4 + ( {2}^{6 - 3})) = [/tex]
[tex]4 \times (4 + ( {2}^{3} )) = [/tex]
[tex]4 \times (4 + (8)) = [/tex]
[tex]4 \times (4 + 8) = [/tex]
[tex]4 \times (12) = 48[/tex]
_________________________________
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The correct answer is (( A )) .
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
y=x+1 x-y=1 solve by substitution
Answer:
No Solution
Step-by-step explanation:
You can use the expression for y provided by the first equation to substitute for y in the second equation.
y = x +1
x -(x +1) = 1
-1 = 1
There are no values of the variables x and y that will make this equation true. The system has No Solution.
__
Additional comment
Solving the second equation for y gives ...
y = x -1
This graphs as a line parallel to the line representing the first equation. A system describing parallel lines has no solution, because the lines never meet, and the solution is the point where they meet.
Answer:
no possible answer.
Step-by-step explanation:
1. y = x+1
2. x-y = 1
3. x = 1+y
Substitute equation 3 into the x in equation 1:
y = (1+y)+1
y = 2+y
y-y = 2
0=2
"0 = 2" isn't valid, thus there is no possible answer to this question.
When a LINE SEGMENT is reflected over a line of symmetry, what is changing?
A. The LENGTH of the line segment
B. The DISTANCE of the line segment from the line of symmetry
C. The coordinates of the ENDPOINTS of the segment
Answer:
The correct answer would be C. The coordinates of the ENDPOINTS of the segment
Step-by-step explanation:
It cannot be A, because the segment only moves. It does not change size.
It cannot be B, because the line of symmetry goes down the middle of the segment- the distance remains the same.
Therefore it is C. The coordinates of the ENDPOINTS of the segment
A toy store had 27,436 customers last week. Which digit is in the thousands place in 27,436?
A.2
B.3
C.4
D.7
Answer:
Your answer is 7 so it's D
Step-by-step explanation:
For the equation, 9x = 3y. Write an EQUATION describing y as a function of x
Answer: 9x + 3y = 12
Alternative forms: y = 0.4 OR y = [tex]2/3^{2}[/tex]
2x + y = 2
-3x + y = 4
Transfer these into y=mx+b
Step-by-step explanation:
2x + y = 2 subtract 2x from both sides
2x - 2x + y = 2 - 2x
y = -2x + 2
(m = -2, b = 2)
-3x + y = 4 add 3x to both sides
-3x + 3x + y = 4 + 3x
y = 3x + 4
(m = 3, b = 4)
8.
Two identical number cubes are shown in the picture. The edge length of these number cubes is 3 centimeters.
What is the combined volume of the two number cubes in cubic centimeters?
Answer:
I love it when you think I will answer with 0oop
What is the line of reflection for the trapezoids?
Answer:A1/d1 And A/B
Sorry i dont really know how to do that just a guess
Mark Bought a concert ticket for $88 then sold it for $121. By what percent did the price go up.
Answer:
33.5%
Step-by-step explanation:
First you need to subtract the amount he bought the ticket from the amount he sold it.
$121 ₋ $88
=$33
After that you need to divide the answer you got by the original amount of the ticket multiply it by 100.
33 ÷ 88 × 100
=37.5%
I hope this helps.
pls mark me as brainliest
A una persona le ofrecieron dos trabajos de vendedor. En la empresa A, le ofrecieron al mes un sueldo base de $6 000 más una comisión de $20 por cada pieza vendida. En la empresa B, le ofrecieron el mismo sueldo base más una comisión igual al cuadrado de la cantidad de piezas vendidas. ¿A partir de qué cantidad de piezas vendidas en un mes le pagan más en la empresa B que en la A?A.
15
B.
19
C.
20
D.
21
Concluimos que a partir de 21 piezas se gana más en la empresa B.
¿Cuanto debe vender para que le paguen más en la empresa B?
Si definimos el número de piezas vendidas como x, la cantidad que le pagan en la empresa A es:
A(x) = $6000 + $20*x
Y lo que le pagan en la empresa B es:
B(x) = $6000 + x^2
Queremos ver para que valor de x, se da que B(x) > A(x).
Entoces resolvamos esa inequación.
6000 + 20*x < 6000 + x^2
20x < x^2
20 < x
x debe ser más grande que 20, entonces concluimos que a partir de 21 piezas se gana más en la empresa B.
Sí quieres aprender más sobre inecuaciones, puedes leer:
https://brainly.com/question/23023694
Which equation can be used to find the measure of angle FGE?
sin(x) = StartFraction 15.2 Over 9 EndFraction
sin(x) = StartFraction 9 Over 15.2 EndFraction
cos(x) = StartFraction 15.2 Over 9 EndFraction
cos(x) = StartFraction 9 Over 15.2 EndFraction
Answer:
cos(x) = StartFraction 9 Over 15.2 EndFraction
Step-by-step explanation:
That's it
Answer:
B. sin(x) = [tex]\frac{9}{15.2}[/tex]
Step-by-step explanation:
I trusted the other guy and got it wrong.
I hope this helps!