Answers:
y=2x2−20x+51
Step-by-step explanation:
Vertex:
(5,1)
Focus:
(5,98)
Axis of Symmetry:
x=5
Directrix:
y=78
1) A(1;2) and slope=3.
slope-interception form is y=s*x+i, where s - slope, i - interception.
if to substitute the given coordinates and slope into the equation, then 2=3*1+i, ⇒ i=-1. It means, the required equation is:
y=3x-1.
2) A(1;2) and B(3;-2).
the common form is:
[tex]\frac{x-X_B}{X_A-X_B} =\frac{y-Y_B}{Y_A-Y_B}.[/tex]
If to substitute the given coordinates into the common form, then:
[tex]\frac{x-3}{1-3} =\frac{y+2}{2+2} ; \ => \ \frac{x-3}{-2} =\frac{y+2}{4}; \ => \ y=-2x+4.[/tex]
What is the slope of this line?
Answer:
1, -6
Step-by-step explanation:
Subtract the units on the grid from one point to the other to get the slope. You go over 1 and down 6 to get to the other point.
PLx Help will mark brainlests IF CAN NO FILES OR LINKS OR DOWLOADS OR BIT WEBSITES
Maya’s school held an aluminum collection program in which they collected aluminum and brought it to be recycled. In the first week, Maya collected four over twenty lb of aluminum and her friend Abigail collected seven over eight lb.
a. Which girl collected more aluminum?
b. How much aluminum did the two girls collect?
Answer:
B
Step-by-step explanation:
Because if you add it together you get certain answer.It would not be A beacuse you cannot solve it in any way so it would be B
Really hope This helped!!:)
A line has a slope of 1/9 and a y intercept of 2. What is its equation in slope intercept form?
In a survey of 1,900 people who owned a certain type of car, 1,045 said that they would buy that type of car again. What precent of the people surveyed were satisfied with the car?
Step-by-step explanation:
1045/1900 = .55 so 55 % of peoplr were satisfied
solve the system y=6x=5 y=3x-23
Answer:
False θ·θ.................
Answer:
x = -28/3
y = -51
Step-by-step explanation:
Let's solve for X first
6x + 5 = 3x - 23
-3x -5 (like terms)
3x = -28
/3 /3 (divide by 3)
x = -28/3
y = 6(-28/3) + 5
y = -51
(I'm having doubts with my answers, so can you check my work? Comment incorrections and I can edit)
Hope this helps! Please comment :)
Benny the Barber (see Question 1) is considering the addition of a second chair. Customers would be selected for a haircut on a FCFS basis from those waiting. Benny has assumed that both barbers would take an average of 20 minutes to give a haircut, and that business would remain unchanged with customers arriving at a rate of two per hour. Find the following information to help Benny decide if a second chair should be added: Part (a): The average number of customers waiting. Part (b): The average time a customer waits. Part (c): The average time a customer is in the shop.
According to the information presented, Benny should decide not to add a second chair because the average number of clients waiting is 1 (very low), the average waiting time for a client is 10 minutes (very low), and the average time a customer is in the store is 20 minutes (very low).
According to the information, an average of 2 clients arrive at the hairdresser for every hour (60 min) and each cut takes a maximum of 20 minutes. Therefore, the hairdresser would have an average of 40 minutes busy and 20 minutes free for each hour.
Additionally, customers who must wait do not have to spend a long time waiting in the store because the maximum waiting time is 10 minutes (in the case that both customers arrive at the same time).
Below is a graph where the information of both cases is compared (with an additional chair and without an additional chair) and it is inferred that an additional chair is not necessary because the number of clients waiting and the waiting time is not high.
Learn more in: https://brainly.com/question/25400126
I need help please!!!!!!!!!
Answer:
2 x -4 = -8
Step-by-step explanation:
1.2x4=8
2.If there is one negative and one positive when multiplying the answer will be negative
Write an equation in slope-intercept form for the line with slope -1/2 and y-intercept -7
Answer:
well slope intercept form is
y=mx+b
now m is slope and b is y intercept.
so just plug it in
y= -1/2x - 7
Answer:
the slope intercept form is
y=mx+b
y= -1/2x - 7
Step-by-step explanation:
Which expression is equivalent to (4√a^2b)(3√b)?
A) 2ab√3
B) 3a^2b^2
C) 12ab
D) 12ab^2
Answer:
C) 12ab
Step-by-step explanation:
HELP ME DUE IN 30mins !!!!
Find the measure of each angle indicated.
Answer:
1.50° 2.65°
Step-by-step explanation:
let x be the unknown angle
1. 32+98+x=180(sum of angles in a ∆ equal to 180°)
130+x=180
x=180-130
x=50°
2. 25+90+x=180
115+x=180
x=180-115
x=65°
Add and simplify 7/30 + 9/20
Answer:
41/60
could i have brainliest pls
Step-by-step explanation:
Answer:
41/60
Step-by-step explanation:
7/30 +9/20 = 14/60 + 27/60
14 + 27 = 41
41/60
Bruno cambió S/200 en tres billetes y ocho monedas. ¿De qué denominación fueron los billetes y monedas?
Answer:
Un billete de 50
Un billete de 100
Un billete de 10
8 de monedas de 5
Explicación paso a paso:
100 +50+10+8(5)=200
Step-by-step explanation:
A marathon is 26.2 miles long. Jarrod is running a marathon and has completed 17.75 miles. How
many more miles to the finish line?
Answer:
Jarron has 8.45 more miles to get to the finish line.
Step-by-step explanation:
All we have to do is subtract the total number of miles by the number of miles Jarron has completed.
So: 26.20 - 17.75 = 8.45
26.2 - 17.75 = 8.45
All you need is subtraction because you are finding what is left.
You can find 8.45 by using a calculator or solving in your head, it would just take longer.
An arts academy requires there to be 5 teachers for every 100 students and 6 tutors for every 48 students. How many students does the academy have per teacher? Per tutor? How many tutors does the academy need if it has 72 students?The academy has enter your response here students per teacher.
20 students per teacher.
8 students per tutor.
9 tutors needed for 72 students.
What digit of 5,401,723 is in the ten thousands place?
Answer:
0
Step-by-step explanation:
5.
Which equation is represented by the graph?
y = 2x2 + 1
y = 2x2 − 1
y = 1/2x^2 + 1
y = x2 − 1
Answer:
y = x^2 − 1
Step-by-step explanation:
By the look of each graph, it looks like y = x2 − 1 is the answer.
can somebody please help me with my language arts please?
Answer: alright
Step-by-step explanation:
i need help solving these problems!
Can someone please explain this to me please?
Will give brainly if you actually answer the question.
Answer:
11. C 12. D
Step-by-step explanation:
Answer: 11 is C and 12 is D.
Step-by-step explanation: On number 11, go on the calculator or just do on paper because you could put 175 over 100 then 60 over a 100 and cross multiply then divide. Once you have the answer, you have to take out the 6%. Now on number 12, an easy way to check. Is to go on Desmos. I used Desmos in 8th grade and it helped me cheat easily. :)
I'm struggling with this question, help a brother out
Answer:
[tex]y = \frac{5}{2} x + 16[/tex]
Step-by-step explanation:
Substitute the slope and the point into y = mx + b and solve for "b"
[tex]y = mx + b[/tex]
[tex]1 = \frac{5}{2} (-6) + b[/tex]
[tex]1 = -15 + b[/tex]
[tex]16 = b[/tex]
The slope-intercept equation is [tex]y = \frac{5}{2} x+ 16[/tex]
PLEASE HELP
(delta math)
Triangle TUV is formed by connecting the midpoints of the side of triangle QRS.
The lengths of the sides of triangle TUV are shown. What is the length of RS?
Figures not necessarily drawn to scale.
10.
Write the equation of a line that is perpendicular to the given line and that passes through the given point.
–x + 5y = 14; (–5, –2)
A. y = 5^x – 27
B. y = -1/5x – 27
C. y = -1/5x – 15
D. y = -5^x – 27
Answer:
D. y = -5^x – 27
Step-by-step explanation:
Find the negative reciprocal of the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line perpendicular to − x + 5 y = 14 .
y = − 5 x − 27 PERPENDICULAAR
...................................................................................................................................................
Find the slope of the original line and use the point-slope formula y − y 1 = m ( x − x 1 ) to find the line parallel to − x + 5 y = 14 .
y = 1 /5 x − 1 PARALLEL
B=5 b+(bx2x3)-5 plz help
Answer:
Step-by-step explanation:
12
Can someone please walk me through this?
3x-1=4x+8-x
3x-1=4x+8-x
3x -4x +x = 8+1
4x -4x = 9
0x =9
x= 9/0 which is undefined .
Please please help please please help me please
Answer:
C
Step-by-step explanation:
The red graph is shifted right by 1 from the black graph, so its function would be f(x -1) before it is reflected across the x-axis. Normally, such a reflection will be done by multiplying f(x) by a negative number. Here, that negative number is used to divide y, instead.
The transformation would normally be expected to be ...
y = -1·f(x -1)
By dividing by -1, this becomes ...
y/(-1) = f(x -1) . . . . . . equation of the red graph
Whats 8*8 I'm in first grade and they give me this
Write a function in any form that would match the graph shown below
f(x)=
Answer:
I think it would be
f(x) = -x² - x + 4
Hope this helps!
Quarry needs to ship a marble block weighing 10,000 pounds if the cost of shipping cost 110 per ton how much will it cost
Step-by-step explanation:
1 ton = 2,000 Pounds
110 x 5 = 550
You multiply by 5 because 2,000 x 5 = 10,000.
----------------------------------------------------
Hope that helped.
Write two equivalent ratios. 9/12
Answer:
3/4 18/24 27/36
Step-by-step explanation:
Need help solving this
Answer:
Part A: h(t) = ⅔t + 64
Part B: The toddler's height increases by 0.67 cm for every increase in age of 1 month.
Step-by-step explanation:
Given the graph of a linear function that models the relationship between the height, h, and age in months, t.
Part A:In order to establish the linear function, we must first identify the slope or the rate of change to further gain an understanding how the height varies with age over time. To solve for the slope, choose two points from the graph:
Let (x₁, y₁) = (18, 76)
(x₂, y₂) = (21, 78)
Substitute these values into the following slope formula:
[tex]\mathsf{\textbf\:m = \frac {(y_2\: -\: y_1)}{(x_2\: -\: x_1)}}[/tex]
[tex]\mathsf{\textbf\:m = \frac {78\: -\:76}{21\: -\: 18}\: =\:\textbf\:\frac{2}{3}}[/tex]
Therefore, the slope of the line is ⅔.
To find the y-intercept, or the initial value for the height, use the slope, m = ⅔, and another point from the graph, (18, 76), to solve for the y-intercept, b.
h(t) = ⅔t + b
76 = ⅔(18) + b
76 = 12 + b
Subtract 12 from both sides:
76 - 12 = 12 - 12 + b
64 = b
Hence, the linear function that expresses the height as a function of age is:
h(t) = ⅔t + 64.Part B:Based on the graph, the toddler's height increases by 0.67 cm for every increase in age of 1 month. Between the ages of 15 and 18 months, a toddler grows by 2 cm. Solving algebraically, we can determine how much the toddler grew by the 16th month by substituting t = 16 into the function:
h(16) = ⅔(16) + 64
h(16) = 10.67 + 64
h(16) = 74.67
It shows on the graph that the toddler's height at 15 months is 74 cm. Our solution here in Part B shows that the toddler grew 0.67 cm by the 16th month.
