Find the vertex for the following functions.
f(x) = -2x2 + 8x + 3
A. (11,2)
B.(2,11)
C.(0,0)

Answers

Answer 1

Answer:

Vertex is (2, 11)

Step-by-step explanation:

Call the vertex (h, k)

A quick way to find h is use the formula h = -b/2a

In your case, h = -8/-4 = 2

Now, to find k.

k = f(2) = -2(2)^2 +8(2) + 3

            = -8 + 16 + 3

             = 11

Vertex is (2, 11)


Related Questions

factor out the gcf from each polynomial 30x^2-18x^3+6x^4

Answers

Answer:

43

Step-by-step explanation:

The measure of angle 1 is 39º. What is the measure of the angle
adjacent to angle 1? Explain.

Answers

Answer:

[tex]180 - 39 = 141[/tex]

141° is the answer

plz help me I only have 5 minutes left winner gets brainliest

Answers

Answer is number three

h+37=1

Whats the answer of H?

Answers

Answer:

h = -36

Step-by-step explanation:

-36 + 37 = 1 can be rewritten as 37 - 36 = 1. Since both equations are true, we have found the answer and checked it.

-36 is your answer.

Hope this helps. Have a nice day.

h= -36 is the answer

Represent each of these temperatures in degrees Fahrenheit with a positive or negative number.

5 degrees above zero

3 degrees below zero

6 degrees above zero

2 3/4 degrees below zero

Answers

5 degrees above is 5°F
3 degrees below is -3°F
6 degrees above is 6°F
2 3/4 below is -2.74°F

This equation shows how the cost of a photography session is related to its duration in hours.

c = 20d

The variable d represents the duration of the session in hours, and the variable c represents the cost. What is the duration, in hours, of a photography session that costs $20?

Answers

Answer:

1 hour

Step-by-step explanation:

c= 20d

here, c=$20

$20=20d

or, d= 1 hr

If PR = 5x – 3 and QS = 3x – 5 and QS == PR, what are the length of the
diagonals?

Answers

Answer:

Step-by-step explanation:

5x - 3 = 2(3x - 5)

5x - 3 = 6x - 10

6x - 5x = 10 - 3

x = 7

QS = 3(7) - 5 = 16 units

PR = 5 × 7 - 3 = 32 units

Help plz so I don't get phone taken

Answers

1) d/r = t

2) P/3 = s

3) 8.2cm

4) C/2pi = r

5) P/3r = q

Melanie's bedroom floor has length equal to 6x + 5 and width equal to 9x - 4. What equation represents the area of the floor?

Answers

Answer:

54x ²+21x-20

Step-by-step explanation:

2x^2+6x+4

Show work please!!

Answers

Answer:

You don't have to do anything

Step-by-step explanation:

It's simplified already unless you want a graph.

I am agreeing with luffy

How can I tell if a system of equations has one, no, or infinitely many solutions?

Answers

Answer:

There are many ways to interpret if whether or not a system of equations has solutions or not. Here is one way that is most ideal for most, if not, all equations: using graphs.

If the graphs of the set of equations do NOT intersect, then there are no solutions (because no x or y value will ever make both equations true)If the graphs of the set of equations DO intersect at one point, then ONLY that one point will make both equations true. (One solution)If the graphs of the set of equations are identical on the graph, then there are infinite solutions that make both equations true.

find the solutions to x^2=27

Answers

Answer:

≈5.20

Step-by-step explanation:

[tex]x^{2} =27[/tex]

you are going to use the square root on both sides to cancel out the x^2

[tex]\sqrt x^{2}=\sqrt 27[/tex]

find the square root of 27

x= about 5.20

you will have to round up when you see the actual result when you follow these steps

Answer:

x = +3 square root of 3

Step-by-step explanation:

yea

Help me out :) 15 points! Show work, and only answer if you know how to do it correctly.

Answers

Answer:

28

Step-by-step explanation:

First u have to find the bisector,then u have to descrese 18

6(3c - 5d + 6) =6(3c−5d+6)=6, left parenthesis, 3, c, minus, 5, d, plus, 6, right parenthesis, equals

Answers

Answer:

[tex]18c - 30d + 36[/tex]

Step-by-step explanation:

Given

[tex]6(3c - 5d + 6)[/tex]

Required

Expand

[tex]6(3c - 5d + 6)[/tex]

Open bracket

[tex]6(3c - 5d + 6) = 6*3c - 6*5d + 6*6[/tex]

[tex]6(3c - 5d + 6) = 18c - 30d + 36[/tex]

So, the result of the expression is:

[tex]18c - 30d + 36[/tex]

Ashley owns 40 shares of a certain stock. Yesterday the value of each share went up by 10 dollars. What was the total change in value of her shares?

Answers

Answer:

$400 change

Step-by-step explanation:

If Ashley owns 40 shares, and each share went up by $10, you can do

40x10=400 to find the change in value

Your parents are buying a new car for $15,000. They pay 6.25% sales tax . How much do they pay for the car including tax

Answers

Answer:

$15,937.50

Step-by-step explanation:

15000 × 1.0625 = 15937.5

Mateo has 60 wooden tiles in the shape of diamonds as shown below. He plans to glue these tiles side by side onto a tabletop. What will the area of the tabletop be?

Answers

Answer:

the base is 6 inches, the height is 4.5 inches. Multiply that by usinhg the formula A = bh your answer will be 27 then multiply that by 60 and your answer is 1,620.

Step-by-step explanation:

solve the proportion

Answers

Answer :
D) x =18/5


Solution :

sketch graphs of these three quadratic relations on the same set of axes.
a) y=x^2 + 8
b) y= x^2 - 5
c) y= x^2 - 10

Answers

Answer: B
I hope this helps you

Which equation has a slope of 3?

y=3y is equal to 3

y=3−xy is equal to 3 minus x

y=3x−1y is equal to 3 x minus 1

y=x+3

Answers

Answer:

the third one

Step-by-step explanation:

slope intercept form is y = mx + b

where m = slope

for the third one m = 3

therefore the third one is the correct answer


I need help with this question can someone help me please?

Answers

Answer:

The correct answer is option D

Hope this helped you! If it did help please consider giving brainliest!

Please do not forget to give a thanks and leave a rating!

Answer:

the answer is D Have a great day

from the well stuffed 52 cards 2 cards are drawn randomly.find the probability of the first card is ace and the second card is Jack of heart( without replacement) by showing tree diagram​

Answers

4/52
1/52
Hope this helps out

Answer:

1/13 or 4/32

Step-by-step explanation:

PLEASE!! All the answers are wrong! An aquarium has 14 angel fish, 12 clownfish and
18 seahorses. What is the ratio of seahorses to
total number of fish?

Answers

Answer:

26:18

Step-by-step explanation:

Answer:

Ok if it is wrong i will do this

If seahorses are considered as fish, 18:44 or 9:22

If seahorses are not considered as fish, 18:26 or 9:13

Step-by-step explanation:

What is L'L?
O 5 units
07.5 units
O 10 units
O 12.5 units

Answers

Answer:

12.5

Step-by-step explanation:

The value of LL' is 5 units.

Option A is the correct answer.

What is translation?

It is the movement of the shape in the left, right, up, and down direction.

The translated shape will have the same shape and shape.

There is a positive value when translated to the right and up.

There is a negative value when translated to the left and down.

We have,

ML' = 2.5

Triangle JKL dilated to Triangle J'K'L' with a scale factor of 1/3.

This means,

LL' = (2.5 x 3) - 2.5

LL' = 7.5 - 2.5

LL' = 5

Thus,

LL' is 5 units.

Learn more about translation here:

https://brainly.com/question/12463306

#SPJ2

Write 16 exponentially two different ways

Answers

Answer:

2^4 or 4^2

Step-by-step explanation:

2^4= 2x2x2x2=16

4^2= 4x4=16

Help ASAP please.due in a few minutes.

Answers

Answer:

Rumble charters

Step-by-step explanation:

OK bus line:

55 +3.50(25)

55+87.5

=142.50

Rumble charters:

75+2.25(25)

75+56.25

=131.25

From looking at the steps we could tell that Rumble charters bus line would be cheaper.

its the second one

Step-by-step explanation:

1. 3.50×25+55=142.5

2. 2.25×25+75=131.25

7(3+5) = 8 + ___

What number or expression could fill in the blank that would make this true

Answers

Answer:

_ = 48

Step-by-step explanation:

7 (3 + 5) = 8 + _

7 x 3 + 7 x 5 = 8 + _

21 + 35 = 8 + _

56 = 8 + _

_ = 56 - 8

_ = 48

Hope that helps!

Answer: x = 48

PEMDAS

7  (3 + 5) = 8 + x

7  (8) = 8 + x

56 = 8 + x

isolate x by subtracting 8

48 = x

What is the slope of this graph?

Answers

Answer:

m = 4

Step-by-step explanation:

Points on the graph: ( -3, -3) and ( -2, 1)

Slope:

m=(y2-y1)/(x2-x1)

m=(1+3)/(-2+3)

m=4/1

m = 4

A cell phone plan costs $200 to start. Then there is a $50 charge each month. Is there a proportional relationship between time and the cost of the cell prone plan? Explain how you know?​

Answers

Answer:

.

Step-by-step explanation:

The equation is

y = 200+50x

This is not a proportional relationship because it does not go through the origin

If x=0, y does not equal 0

Ok so my mom is verbally abusive towards me and makes me cry almost everyday. I really want to run away but I have cameras all sides and some inside and a tracker on my phone that can read texts and show my precise location. I can’t go out of the window because my room has a sensor and I don’t have a roof slope like most of y’all do. I could go out of the kitchen window but one of the backyard cameras will see me jump the fence and leave. what do you think i should do? And what to pack because if I run away today I need to know what to pack and advice.

Answers

Answer:

turn on air plane mode then connect to the wifi or use vpn

Step-by-step explanation:

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