A quadratic of the form -2x^2 + bx + c has roots of x = 3 + sqrt5 and x = 3 - sqrt5. The graph of y = -2x^2 + bx + c is a parabola. Find the vertex of this parabola.
Answer:
Just saying that there are links people post that scam you and this is requird by Brainly
Step-by-step explanation:
Please help meee thanks y’all
Answer:C
Step-by-step explanation:
Hope this helps!!
Answer:
Multiplication Property of equality
Step-by-step explanation:
AX BX
---- = ---
CY DY
Multiply each side by CY *DY
AX BX
CY * DY---- = --- CY *DY
CY DY
Canceling
DY *AX = BX DY
Then multiply by 1/ AX on each side
DY = BX * DY * 1/ AX
Then Multiply by 1/ CY on each side
DY BX
---- = ---
CY AX
The equation of line CD is y = −2x − 2. What is the equation of a line parallel to line CD in slope-intercept form that contains point (4, 5)?
y = −2x + 13
y = negative one halfx + 7
y = negative one halfx + 3
y = −2x − 3
Answer:
y = −2x + 13
Step-by-step explanation:
equation of line slope intercept form is y = mx +c
where m is slope and c is y intercept
when two lines are parallel then their slope are equal.
_______________________________________
Given line
CD
y = −2x − 2
it is in form of y = mx +c
thus, m = -2
Given that other line parallel to CD y = −2x − 2
Thus, its slope will be -2.
Let the equation of required line be
y = mx +c (as slope will be -2)
Then equation of line will be
y = -2x +c
Given that this line contains (4,5) it will satisfy the equation y = -2x+c
using x = 4 and y = 5
we have
y = -2x +c
5 = -2*4 + c
=> 5 = -8 + c
=> c = 5+8 = 13
Thus, equation of line parallel to y = −2x − 2 and containing point(4,5) is
y = −2x + 13
Answer:
A. y = −2x + 13
Step-by-step explanation:
Add. 7/4+9/-5 wrote your answer as a fraction in simplest form
Answer:
7/4 + 9/-5 =
Since the denominator of the second fraction is negative the sign will change from negative to positive
We will get
7/4 - 9/5
First find the LCM
LCM of 4 and 5 is 20
7/4 - 9/5 = 5(7) - 4(9)/ 20
Simplify
We get
35 - 36/20
= -1/20
Hope this helps
Answer:
-1/20
Step-by-step explanation:
7/4 + -9/5
We need a common denominator, which is 20
7/4 *5/5 + -9/5 *4/4
35/20 + -36/20
Add the numerators together
-1/20
Solve for x. ANSWERS: A) 12 B) 13 C) 11 D) 10
Answer:
A) 12
Step-by-step explanation:
Since triangles YRZ and QRS are similar by AA, the ratio of their sides should be constant. Since RY=QY, let's call that side length y.
[tex]\dfrac{x+2}{y}=\dfrac{3x-8}{2y}[/tex]
Multiply both sides by 2y:
[tex]2(x+2)=3x-8 \\\\2x+4=3x-8 \\\\4=x-8 \\\\x=12[/tex]
Hope this helps!
A professional singer charges $1000 an hour. Her rate increases by 50% after midnight. If she performs one night from 8:30pm to 1:00am, how much will she be paid? .
Answer:
$5000
Step-by-step explanation:
Hours until midnight = 3 1/2
Hours until 1am = 1
3 1/2 x 1000 = 3500 = $3500
1 = ( 1000 x 0.50 = 500 (+1000) ) = 1500= $1500
3500+1500 = $5000
05.06)Use a net to find the surface area of the right triangular prism shown below
Answer:
504
Step-by-step explanation:
Answer:
to find the surface are of a prism you would do ph+2b
Step-by-step explanation:
ph +2b
B= area of base
P= perimeter of base
H= how long from base to base
Hope that helps!
y
Uh
4
3
1 2 3 4
5 4 3 2 11
-27
37
-4
-5
O y2-3x+2
O y>-3x+2
oys - 1/2x + 2
Solve. Draw to show your answer. Picture above
Answer:
Barry ate the most cheese.
He ate
[tex]1/2[/tex]
While Marcy ate
[tex]1/4[/tex]
[tex]1/2 >1/4[/tex]
This shows that 1/2 is greater than 1/4
So, Barry ate the most cheese
Formulate the recursive formula for the following geometric sequence. {-16, 4, -1,...}
Answer:
Step-by-step explanation:
Common ratio = 2nd term/1st term = 4/-16 = -1/4
[tex]a_{n}=a_{n-1}*r\\a_{n}=a_{n-1}*\frac{-1}{4}\\\\a_{n}=\frac{-1}{4}a_{n-1}[/tex]
Answer:
Common ratio = 2nd term/1st term = 4/-16 = -1/4
Step-by-step explanation:
Write each repeating decimal using bar notation.
•2.034034...
•0.9222....
•0.7777....
Answer:
___
2.034
over .034
_
0.92
over 2
_
0.7
over 7
Step-by-step explanation:
Bar notation of 2.034034.... is [tex]2.\overline{034}[/tex], 0.9222... is [tex]0.9\overline{2}[/tex], 0.7777... is [tex]0.\overline{7}[/tex]
What is bar notation for non terminating and recurring decimals?Non terminating and recurring decimal expansion are those in which the decimal expansion does not terminates and a certain number of group of numbers keep repeating in the expansion.
For example 10/3 = 3.33333..... here the decimal expansion is non terminating and 3 is recurring in the expansion.
Instead of writing this repeating part again and again we put a bar on the numbers that keep repeating.
Bar notation of 3.33333... is written as [tex]3.\overline{3}[/tex]
Given decimal expansions are
a. 2.034034....
We can see that this decimal expansion is non terminating, recurring and 034 is recurring part of decimal expansion so bar will come on 034 after decimal.
Bar notation of 2.034034.... = [tex]2.\overline{034}[/tex]
b. 0.9222....
We can see that this decimal expansion is non terminating, recurring and 2 is recurring part of decimal expansion so bar will come on 2 after decimal.
Bar notation of 0.9222... = [tex]0.9\overline{2}[/tex]
c. 0.7777....
We can see that this decimal expansion is non terminating, recurring and 7 is recurring part of decimal expansion so bar will come on 7 after decimal.
Bar notation of 0.7777... = [tex]0.\overline{7}[/tex]
Also, learn more about decimal expansions from the link below:
https://brainly.com/question/17316823
#SPJ5
1. Jason travelled from Florida to Mississauga He travelled 3/10 of the journey by lorry, 2/5 of the journey by taxi and the rest by train. What fraction of the journey did he travel by train 2. Which of the fractions 13/20, 3/5, 3/4 and 7/10 is the greatest?
Answer:
1. He traveled 3/ 10 by train
2. 3/4 is the greatest
Step-by-step explanation:
3/ 10 = Iorry
2/5 = taxi
? = train
2=4
5=10
4+ 3 = 7
10 + 10= 10
13/20
12/20
15/20
17/20
Factor 81x^2-49y^2 please show work.
Answer:
(9 x - 7 y) (9 x + 7 y)
Step-by-step explanation:
Factor the following:
81 x^2 - 49 y^2
Hint: | Express 81 x^2 - 49 y^2 as a difference of squares.
81 x^2 - 49 y^2 = (9 x)^2 - (7 y)^2:
(9 x)^2 - (7 y)^2
Hint: | Factor the difference of two squares.
Factor the difference of two squares. (9 x)^2 - (7 y)^2 = (9 x - 7 y) (9 x + 7 y):
Answer: (9 x - 7 y) (9 x + 7 y)
78. If 8x + 5x + 2x + 4x = 114, then 5x + 3 =
Answer:
33
Step-by-step explanation:
8x + 5x + 2x + 4x = 114
19x = 114
x = 6
5(6) + 3
30 + 3
= 33
A 17 lb dog is ordered to receive 105 mg of Clavamox BID for 14 days. IF Clavamox's concentration is 250mg/5ml, how many oz's of Clavamox will be sent home with the client?
Answer: 1 oz of Clavamox will be sent home with the client.
Step-by-step explanation:
Given, 17lb Dog is ordered to receive 105 mg of Clavamox BID for 14 days.
That means, the dog required 105 mg of Clavamox per day.
So for 14 days, the dog will need [tex]105\ mg \times 14\ days = 1470\ mg[/tex] of Clavamox
Also, the Clavamox concentration is 250 mg/5 ml
Thus, the required amount of Clavamox fotr 14 days =[tex]5 ml \div 250 mg \times 1470 mg = 29.4 \ ml[/tex]
Since, 1 oz is 29.5 ml (approximately 29.4 ml.)
So, 1 oz of Clavamox will be sent home with the client.
Please help ASAP With this extremely easy question.
Answer:
10 units
Step-by-step explanation:
The reflection of point E is (5,2)
The distance between (-5,2) and (5,2) is 10 units
Answer: it would be 10 units
Step-by-step explanation:
The distance between (-5,2) and (5,2) is 10 becuase it a reflection showing it would only be ten away by multiplying -5 and 2 together
If a 4x 16 rectangle has the same area as a square, what is the length of a side of the square?
OA. 6
OB. 12
O c.
8
OD
10
Answer: 8 is the length of all sides of the square, So c
Step-by-step explanation:
L * W = Area
4 x 16 = 64
64 is the area of the regtangle, and so is the square.
Squares have even sides, so find the square root of 64:
8 is the square root of 64
so 8 is the answer
Find the area of the square rug if it is side is (7X +4) feet.
Answer:
49[tex]x^{2}[/tex]+56x+16 ft squared.
Step-by-step explanation:
Alright, so we are given that we have a rug that has a side of 7x+4 feet. With this information, we are able to determine the area of the square rug. Considering that it is a square rug, all the sides are equal to each other because a square has four equal sides and angles.
To solve this, you can do it in two ways.
One, write it as (7x+4)2. That 2 is supposed to represent squared.
If you know the rule, this is a perfect square trinomial.
The formula is a squared plus 2ab plus b squared. 7 and 4 are your a and b values. 7x squared is 49x squared and 4 squared is 16.
2ab, multiply 2 times 7x times 4. That is 56x.
Therefore, the area is 49xsquared plus 56x+16.
Another way is to write it like this (7x+4) (7x+4).
Since it is an exponent, we are multiplying the same thing two times. Apply the Distributive Property.
E.G. 2(x+5)= 2x+10.
With this, you are distributing two numbers into another two numbers. 7x times 7x is 49x squared and 7x times 4 is 28x. Then, go to 4. 4 times 7x is also 28 x and 4 times 4 is 16. Now, combine the like terms. 49x squared plus 28x plus 28x or 56x plus 16.
This represents your area.
I hope this helps, and I hope you have a good day!
4.(06.02 MC)
Write an equation of a line that passes through the point (3, 2) and is parallel to the line y = 3x - 4. (5 po
y = 3x + 7
y = 3x - 7
y =
x + 2
O y = fx-2
Answer:
y = 3x-7
Step-by-step explanation:
Lines that are parallel have the same slopes.
y = 3x-4 ---> y=mx+b (slope = m=3)
point-slope formula for a line: y - y1 = m(x-x1)
slope=m=3
(3,2)----> (x1,y1)
y - 2 = 3(x-3)
y - 2 = 3x-9
y = 3x-7
The slope of the line below is -2. Which of the following Is the point-slope form of a line? (4,-8)
Answer: A. y+8=-2(x-4)
Step-by-step explanation: Point-slope form is y-y₁=m(x-x₁), in which you only substitute three values: the slope, and the x and y coordinate. So, since the slope is -2, you replace it with m. And, if the point is (4, -8), you would substitute the 4 in for x₁, but the -8 is a little more complicated because it is negative. Basically, the negative and the minus sign cancel out and it becomes a plus sign.
Hope this helped! Good luck!
Which statement best explains if the graph correctly represents the proportional relationship you’re
Answer:
The slope is -3/2.
Step-by-step explanation:
The manager of a company planed to distribute a 50 dollar bonus to each employee from the company fund. But the fund contained 5 dollars less than what was needed. Instead the manager gave each employee a 45 dollar bonus and kept the remaining 95 dollars in the company fund. How much money was in the company fund before any bonuses were paid?
Answer:
$995
Step-by-step explanation:
Let x be the number of people in the company, and y be the amount of money in the fund.
The first sentence states that 50x = y + 5
The second sentence states that 45x = y - 95
Subtracing the second equation from the first, we get 5x = 100, leading to x=20
Plugging that number into the first equation gives (50)(20) = y + 5, leading to y=995
3
What is the rate of change and initial value for the linear relation that includes the points si
60%
ху
110
28
36
4 4
Initial value: 12, rate of change: -2
Initial value: 8, rate of change: 2
Initial value: 12, rate of change: 2
Initial value 8, rate of change: -2
The value of (-7) 2 is negative. True or false? Please help me!!!! :'(
Answer:false
Step-by-step explanation:
(-7)^2
(-7)*(-7)
49
49 is a positive number
Answer:
It is false
Step-by-step explanation:
It is false because if you have two groups of negatives, it is positive. (-7)^2 is the same as -7x-7. Two negatives equal a positive, so the answer should be 49. 49 is positive so it is false.
What is the slope of the line described by the equation below y= 3x-6 A. (0,-6) B. (0,-3) C. (0,6) D. (0,3)
Answer:
A.)
Step-by-step explanation:
If you plug in the x and y values into the equation, you will see that -6=-6
y=3x-6
-6=3(0)-6
-6=-6
Therefore, A.) is the correct answer
The point A(x, y) is reflected across the x-axis to point B. Point B is reflected across the y-axis. What are the coordinates of point B'? A. (x, y) B. (–x, y) C. (x, –y) D. (–x, –y)
Answer:
The transformed point B' is: (-x, -y)
which agrees with option "D" from your list of possible solutions.
Step-by-step explanation:
In a reflection across the x-axis, the x coordinate stays the same, while the y-coordinate adopts its opposite. That is, from y it becomes "-y". Therefore, now the point (x, y) got transformed into (x, -y).
In the second step, this new point is reflected across the y-axis. Then , in such reflection, the y-coordinate stays the same, while the x-coordinate gets transformed into its opposite (x becomes "-x". So for our case, the point (x, -y) now gets transformed into (-x, -y).
Answer:
(-x-y)
Step-by-step explanation:
please help meeeeee:)))))
Answer:
B
Step-by-step explanation:
the reason this because vertically opposite angles the equal so it's also 72
Answer:
72 degrees
Step-by-step explanation:
Since its opposite from the other angle and the curvature is equal then it is 72
Which line represents the direct variation equation y = 2x?
Answer:
line b
Step-by-step explanation:
y = 2x
This is in the form y = mx+b where m is the slope and b is the y intercept
The slope is 2 and the y intercept is 0
It has to go through the point (0,0) and has a positive slope
line b
Find the product and enter it in the box below. Enter your answer as a
polynomial in descending order and use the caret (1) for exponents. For
example, you would write 4x2 as 4x^2.
(8x+4)(x+8)
Answer:
here to help!
Step-by-step explanation:
Ok to find the volume, you have to multiply the length•width•height. So, you would multiply 9.6•5•7 to get 11,760.
Answer asap will mark as brainliest if correct
Answer:
D. x = +/-sqrt(y - 11)
Step-by-step explanation:
y = x^2 + 11
x^2 + 11 = y
x^2 = y - 11
x = +/-sqrt(y - 11)
