Answer:
f(2) = -6
General Formulas and Concepts:
Order of Operations: BPEMDAS
Substitution and Evaluation
Step-by-step explanation:
Step 1: Define
f(x) = -2x² + 4x - 6
f(2) is x = 2
Step 2: Solve
Substitute: f(2) = -2(2)² + 4(2) - 6Exponents: f(2) = -2(4) + 4(2) - 6Multiply: f(2) = -8 + 8 - 6Add: f(2) = -66 = 2(y + 2)
Solve for Y.
Answer:
6=2(y+2)
distributive property
6=2(y)+2(2)
6=2y+4
-4 -4
2=2y
-- --
2 2
divide two in both sides to get y by itself
y=1
Answer:
y = 1
Step-by-step explanation:
6 = 2 (y + 2)
Distribuite:
2 * y = 2y
2 * 2 = 4
2y + 4 = 6
Use additive inverses. The additive inverse of addition is subtraction.
Subtract 4 from both sides:
2y + 4 - 4 = 6 - 4
6 - 4 = 2
2y ÷ 2 = 2 ÷ 2
2y ÷ 2 = y
2 ÷ 2 = 1
To check our answer we multiply how much y is (which is 1) by 2.
2(1) + 4 = 6
2 * 1 = 2
2 + 4 = 6.
Helpp!
Shamir is trying to decide between two cities to travel to for a weekend trip. The prices for a hotel room for two nights and the hotel tax rate are listed in the table
| city | cost ($) | Tax rate |
| A | 250 | 12.5% |
| B | 215 | 14.75% |
What is the difference in cost between the two cities for a weekend trip? Round to nearest cent
Answer:
$34.54Step-by-step explanation:
city A
$250 x 1.125 $281.25city B
$215 x 1.1475 $246.713difference between the two cities = $281.25 - $246.713
= $34.54
The difference in cost between the two cities for a weekend trip will be $34.54.
What is the percentage?The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol ‘%’ is used to symbolize it.
Shamir is trying to decide between two cities to travel to for a weekend trip. The prices for a hotel room for two nights and the hotel tax rate are listed in the table.
City Cost ($) Tax rate
A $250 12.50%
B $215 14.75%
Then the difference in cost between the two cities for a weekend trip will be given as,
⇒ $250 × 1.1250 - $215 × 1.1475
⇒ $281.25 - $246.71
⇒ $34.54
The difference in cost between the two cities for a weekend trip will be $34.54.
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ5
The art club, music club, and drama club at Glendale High School raised money last summer by washing cars.• The art club raised about $3,200 and charged $6 per car.• The music club earned approximately $3,800, charging $8 for each car.• The drama club took in nearly $2,900, at a cost per car of $7. About how many cars did each of the clubs wash?
Answer:
The number of car washed per club is:
The art club = 533 cars
The music club = 633 cars
The drama club = 414 cars
Step-by-step explanation:
The art club, music club, and drama club at Glendale High School raised money last summer by washing cars.•
For the art club
The art club raised about $3,200 and charged $6 per car.•
$6 = 1 car
$3200 = x
6x = 3200
x = 3200/6
x = 533.33333333 cars
Approximately = 533 cars
The music club earned approximately $3,800, charging $8 for each car
$8 = 1 car
$3800 = x
8x = 3800
x = 3800/8
x = 633.33333333 cars
Approximately = 633 cars
The drama club took in nearly $2,900, at a cost per car of $7.
$7= 1 car
$2900 = x
7x = 2900
x = 2900/7
x = 414.28571429 cars
Approximately = 414 cars
The number of car washed per club is:
The art club = 533 cars
The music club = 633 cars
The drama club = 414 cars
Can y'all please help me with this !!!/!/!???......itz all in the pic
Complete all to get brainliest
~thanks~✌
Graph for 4x + 3y = -3
Answer:
Your answer is: Slope = [tex]-\frac{4}{3}[/tex] Y-intercept = [tex](0,-1)[/tex]
Graph the line using the slope and y-intercept, or two points.
Step-by-step explanation:
Graph Below : ↓
Hope this helped : )
if you are good at math please help me answer all 4 please
Which expression is equivalent to 6(8−n)−8 ?
Answer:
48-6n-8
40-6n
Step-by-step explanation:
Answer:
40-6n
Step-by-step explanation:
if on imagine math it is 40-6n
What is the precision of the measurement 10 feet?
Answer:
You measure the length of the paper three times and obtain the following measurements: 11.1 in., 11.2 in., and 10.9 in.
Make a table of ordered pairs for the equation.
y= -1/3x+1
Then plot two points to graph the equation.
It’s a 10 by 10 graph and it has 4 areas
Answer:
Graph the line using the slope and y-intercept, or two points.
Slope: -1/3
Y-Intercept: (0,1)
Is this graph
a function
A. Yes
B. No
PLEASE HELP
14 POINTS OR BRAINLIST
Answer: A
Step-by-step explanation:
Someone plz help me Idk what to do idk which answer It is I’ll give brainlist and points
Answer:
b (-3/5)
Step-by-step explanation:
First, distribute the -2 on the left side
-2x-2=3x+1
now, add 2 to both sides
-2x=3x+3
subtract 3x from both sides
-5x=3
divide both sides by -5
x=-3/5
HTH :)
Answer:
It's b)
Step-by-step explanation:
-2 (x + 1) = 3x + 1
-2x -2 = 3x + 1
-3x +2
-5x = 3
-5x/-5 = x
3/-5 = -0.6
x = - 0.6 (-3/5 as a fraction)
:)
26 - (2c + 4) = 2(C+6) +C
what is c
Answer:
c = 2
Step-by-step explanation:
26 - (2c + 4) = 2(c+6) + c
26 - 2c + 4 = 2c + 12 + c
26 - 4 - 12 = 2c + 2c + c
10 = 5c
2 = c
Solve for x,
-4/5x -3/20
x + 1/4x = -70
Answer:
x=100
Step-by-step explanation:
Simplify -4/5x-3/20x+1/4x
-7x/10=-70
Multiply both sides of the equation by -10/7.
-10/7*(-7x/10)=-10/7*-70
Simplify both of the equation.
x=100
Point Q'Q
′
Q, prime is the image of Q(0,6)Q(0,6)Q, left parenthesis, 0, comma, 6, right parenthesis under the translation (x,y)\to(x+7,y-5)(x,y)→(x+7,y−5)left parenthesis, x, comma, y, right parenthesis, \to, left parenthesis, x, plus, 7, comma, y, minus, 5, right parenthesis
\
Answer:
9,2
Step-by-step explanation:
i got it on khan
Answer:
7,1
Step-by-step explanation:
let's add 7 to x
0+7=7
let's subtract 5 from y
6-5=1
Q' is (7,1)
does anyone know how to factor this?
need an answer asap please
Answer:
Rotated shape in the image
Step-by-step explanation:
Counterclockwise Rotation About the Origin
Given the point (x,y), the counterclockwise rotation about the origin is the point (-y,x), i.e. the coordinates are switched and the y-coordinate is opposed.
The points of the quadrilateral are T(1,-2), S(5,-3), R(5,-4), U(2,-4). The rotated points are:
T'(2,1), S'(3,5), R'(4,5), U'(4,2).
The rotated shape is shown in the image below.
Which domain would be most appropriate to the number of download songs?
Answer:
Step-by-step explanation:
B. Because your domain is the number of songs someone will purchase
Luis does not know how old your grandfather Fernando is, but he does know the age of his father john is 20 years younger than him. Luis was 15 years old and was born when his father was 35 years old. Luis uncle is 3 years younger than his dad. Analyze the two equations bellow that represents the ages of the person describe. X+20=y Y-20-3=z what do each variable represents
Answer: X= John's age , Y= Fernando's age, Z = Age of Luis uncle
Step-by-step explanation:
Given: John is 20 years younger than fernando.
i.e. John' age + 20 = Fernando's age
So in the given equation "X+20=Y " , X= John's age and Y= Fernando's age.
From this , John's age: X= Y-20 (i)
Also, Luis uncle is 3 years younger than his dad( John).
Age of Luis uncle = John's age -3
=X-3
= Y-20-3 [From i]
So in the given equation Y-20-3=Z , Z = Age of Luis uncle
You are going on a road trip!
You drive to your best friend's house and then get on the highway.
After 2.5 hours, you had traveled a total of 135 miles.
You can average 50 miles per hour after you leave your friend's house.
Which of these equations best shows the distance you have gone since you left your house?
Answer: total distance - 135 = 50 (hours - 2.5)
Are these shapes similar? If so please explain
Answer:
yes
Step-by-step explanation:
because it is the same shape.
A shadow 16 meters long is cast by a utility pole that is 12 meters tall. What is the length of
the shadow cast by a nearby apple tree that that is 6 meters tall?
Write your answer as a whole number or a decimal. Do not round.
Answer:
10
Step-by-step explanation:
Write an equation of the line below.
HELP PLEASE!!
What is the y-intercept for -1,3
Answer:
No solution
Step-by-step explanation:
v A square garden has an area of 110 square feet. a. What is the approximate length of one side of the garden? Round to the nearest tenth.
what is 7.0 divided by the power of 3
Answer:
7/3
Step-by-step explanation:
(√3+5)(√3-1) How do u solve it?
Answer:
4.93
Step-by-step explanation:
Use calculator
Mark me as brainliest
Answer:
[tex]4\sqrt3-2[/tex]
Step-by-step explanation:
[tex](\sqrt3+5)(\sqrt3-1)\\\\3+5\sqrt3-\sqrt3-5\\\\4\sqrt3-2[/tex]
Hope this helps, please award brainliest! Have a nice night.
Answer my math question I asked so many times I lost most of points by
Answer:
Step-by-step explanation:
Tbh I am not sure but you can use this app called Microsoft math which helps so much can you please answer my question
The next model of a sports car will cost 14.1% less than the current model. The current model costs $55,000 . How much will the price decrease in dollars? What will be the price of the next model?
Answer:
$3900.71 is the amount of money subtracted from the next model
51099.29 is the cost of the second model
Step-by-step explanation:
Simplify this equation. 20 points i think?
3/5x + 19 - 3/20x - 7
(Please show and explain what you did to simplify this problem because it doesnt make sense to me at all)
Answer:
Hey buddy, here is your answer. Hope it helps you.
Step-by-step explanation:
3/5x+19-3/20x-7
First convert the fractions so they have a common denominator and rearrange
12/20x-3/20x+19-7
9/20x+12
The carnival fundraiser at Westville Elementary School raised $300 on Friday. On Saturday, the carnival will raise 480 percent of that amount. Which statements are true about the amount of money that the carnival will raise on Saturday? Check all that apply.
The missing options in the question are:
a.) The answer will be less than $300 because 100 is less than 480.
b.) The answer will be greater than $300 because 480 is greater than 100.
c.) (100)(3) = 300, so 480(3) is the amount of money that the carnival will raise on Saturday.
d.) 480 + 300 is the amount of money that the carnival raised on Saturday.
e.) The carnival raised $780 on Saturday.
f.) The carnival raised $1,440 on Saturday.
Answer:
The correct options are: (b), (c), (f)
Step-by-step explanation:
Given that:
The carnival fundraiser raised $300 on Friday
On Saturday, It was stated that the carnival fundraiser will raise 480 percent of the amount raised on Friday;
i.e.
= (480% × 300)
[tex]= \dfrac{480}{100} \times 300[/tex]
= 480 (3)
= $1440
So; we are to check the given option and choose the statements that are true about the amount of money that will be raised at the carnival on Saturday.
From the above explanation;
The true statements are:
The answer will be greater than $300 because 480 is greater than 100.
(100)(3) = 300, so 480(3) is the amount of money that the carnival will raise on Saturday.
The carnival raised $1,440 on Saturday.