What is the vertex of the graph of the function f(x) = x2 + 8x − 2 ? (−4, 18) (0, -2) (-8, -2) (−4, −18)

Answers

Answer 1

Answer:

(−4, −18)

Step-by-step explanation:

f(x) = x^2 + 8x - 2

⇒  CONVERT TO VERTEX FORM

≥ f(x) = (x + 4)^2 - 16 - 2

≥ f(x) = (x + 4)^2 - 18

⇒ VERTEX IS AT:

≅ ((−4, −18))

Answer 2

Answer:

The answer is D......

Step-by-step explanation:


Related Questions

(Please show work and No links) If you bought 28 shares of stock at $30/sh and sold them at $25/sh. And How much did you net after selling the shares? Was it a profit or a loss?

Answers

Let C be the total cost;

[tex]c = 28 \times 30 = 840[/tex]

Let R be the total revenue;

[tex]r = 28 \times 25 = 700[/tex]

Let P be the net profit;

[tex]p = r - c[/tex]

[tex]p = 700 - 840 = - 140[/tex]

There was a 140$ net loss.

can you please help me​

Answers

Answer:

168

Step-by-step explanation:

yea..

Guys please help! i will mark brainliest to the right answers

Note: in order for me to mark a brainliest 2 people need to answer

Answers

Answer:

(A) :

[tex]y = - \frac{5}{2} x + 40[/tex]

(B) : it is a decreasing linear graph. this means that the amount Shikita owes is lesser by $2.50 amount each week

Step-by-step explanation:

shown in the attatchment

A home builder needs to cover the rectangular floor of a closet with a carpet the closet is 2 yards long and 2/3 of a yard wide how much carpet will the home builder need to cover the closet?

Answers

Your Answer is 4 Yards

Step-by-step explanation:

2/3 yards is 2 feet

2 yards is 6 feet

2 times 6 feet is 12 foot e.g. (2 x 6 =  12)

12 feet is 4 yards.

Formula (L x W = A)

L = length

W = Width

A = Area

Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!

A cube has an edge of 2 feet. The edge is increasing at the rate of 4 feet per minute. Express the volume of the cube as a function of m, the number of minutes elapsed.
Hint: Remember that the volume of a cube is the cube(third power) of the length of a side.

v(m)=???? feet^3

Answers

Answer:

V(m) = [tex](4m+2)^3[/tex]

Step-by-step explanation:

The edge of the cube is increasing by 4 feet every minute

V(m) = [tex](4m + 2)^3[/tex]

Two is the starting sidelength of the cube, and 4m is how many feet the side of the cube has grown, depending on the number of minutes that have passed


Please answer question in screen shot

Answers

Answer:

1 (the answer will always be 1)

Step-by-step explanation:

Let's forget about the absolute value signs for a second and just look at what's inside

[tex]\frac{x+y}{-x-y}[/tex]

This can be rewritten as

[tex]-\frac{x+y}{x+y}[/tex]

When you have the same numerator and denominator, it will always come out to 1, so we can just say that this is saying

[tex]-\frac{x+y}{x+y} = -1[/tex]

Now, back to the absolute value signs

This comes out to negative 1, but the absolute value signs means to always change the negative to a positive (but if it's a positive, it stays positive!)

So that means:

[tex]|-1| = 1[/tex]

and 1 is your answer

What is the distance from the origin to point A graphed on the complex plane below?

Answers

Can u please put the rest of the answer

Susan reads a book at a rate of 1 page every 3 minutes. If her reading rate remal
the same, which method could be used to determine the number of minutes for t
to read 18 pages?

Answers

18x3 = 54 1 page every 3 minutes 18 pages x3 = 54

hello help me with this question thanks in advance​

Answers

Question #38 Answer

D. 40 ft.

Explanation:

Based on the given conditions, formulate:

[tex]30\times20\div15[/tex]

Calculate

[tex]\frac{30\times20}{15}[/tex]

Cross out the common factor

[tex]2\times20[/tex]

Calculate the product or quotient

[tex]40[/tex]

___________________________________________________

Question #39 Answer

C. Yes, Right Triangle Similarity Theorem

Explanation:

[tex]-\ If\ an\ altitude\ is\ drawn\ to\ the\ hypotenuse\ of\ a\\ right\ triangle,\ then\ the\ two\ triangles\ formed\ are\\ similar\ to\ the\ original\ triangle\ and\ to\ each\ other.[/tex]

____________________________________________________

Question #40 Answer (Picture attached)

D. 23.40 ft.

Explanation:

[tex]height\ of\ tree:x[/tex]

[tex]\frac{x}{s_0-d_0}=\frac{39}{50}[/tex]

[tex]x=\frac{30.39}{50}[/tex]

[tex]=23.40ft[/tex]

[tex]\left \{ {{calculate\}[/tex]

I hope this helps you

:)

answer this question ​

Answers

The answer is zero

Hopes this helps :)

9. The rational number that is equal to its negative is zero (0)

10. [tex]\sf \dfrac{1}{3} ( 6 \ * \ \dfrac{4}{3} )[/tex] can be written as [tex]\sf ( \dfrac{1}{3} *6)*\dfrac{4}{3}[/tex]   using associate property.

associative property is when numbers are changed within the parenthesis with out the change in result.

formula of associative property : a(bc) = (ab)c

How can you tell that (496 + 77 + 189) x 10 is twice as large as (496 + 77 +189) x 5 without doing complicated calculations?​

Answers

Answer:

Because 10 is twice as large as 5.

Step-by-step explanation:

27 is 0.5% of what number

Answers

Answer:

54

Step-by-step explanation:

27 is half of what number?

27 x 2 = 54

:)

Answer:

135

Step-by-step explanation:

27 x 0.5 = 135

Hope it helps!!!!!

Which of the following polynomials has solutions that are not real numbers?
A
x2 - 6x +3
B
x2 + 4x +3
-*? - 9x - 10
x? + 2x +3

Answers

Answer:

Option 4 is correct.

Step-by-step explanation:

To find: Polynomial whose solution are not real numbers.

Given Polynomials are Quadratic Polynomial.

So, we can check if solution of quadratic polynomial by find & checking value of discriminant.

Standard form of Quadratic polynomial is given by

ax² + bx + c

then Discriminant, D = b² - 4ac

If, D > 0 ⇒ Solutions are distinct real numbers

if, D = 0 ⇒ Solutions are equal real numbers

if, D < 0 ⇒ Solutions are not real numbers (They are complex conjugates)

Option A:

By comparing with standard form

a = 1 , b = -6 , c = 3

D = (-6)² - 4 × 1 × 3 = 36 - 12 = 24 > 0

Thus, Solutions are Real numbers.

Option B:

By comparing with standard form

a = 1 , b = 4 , c = 3

D = (4)² - 4 × 1 × 3 = 16 - 12 = 4 > 0

Thus, Solutions are Real numbers.

Option C:

By comparing with standard form

a = -1 , b = -9 , c =-10

D = (-9)² - 4 × (-1) × (-10) = 81 - 40 = 41 > 0

Thus, Solutions are Real numbers.

Option D:

By comparing with standard form

a = 1 , b = 2 , c = 3

D = (2)² - 4 × 1 × 3 = 4 - 12 = -8 < 0

Thus, Solutions are not Real numbers.

Therefore, Option 4 is correct.

Step-by-step explanation:

Help to get the answer

Answers

What answer all you put was help to get the answer I don’t see anything but that I can’t help without anything to work with Sorry

Hope this helps!

9x9/16+12 whats the answer

Answers

Answer:

17.0625

Step-by-step explanation:

Due to order of operations the division and multiplication get done first and the we add the 12

Answer:

2.89285714

Step-by-step explanation:

9x9/16+12

81/16+12

5.0625 + 12 = 17.0625

Hope this helps :)

The width of a rectangle with an area of 55 in depends on its length. Write the formula that describes the width of the rectangle as a function of its length.
If the length of the rectangle is m, then the width w = ?

Answers

Answer:

Step-by-step explanation:

[tex]\bf \text{width = $\dfrac{Area}{length}$}[/tex]

[tex]\bf w =\dfrac{55}{m}[/tex]

Joy's class voted on whether or not to do science fair projects in groups. Out of 24 votes, 18
were in favor of working in groups. What percentage of the votes were in favor of working in
groups
Write your answer using a percent sign (%).
Submit

Answers

Answer:

75%.

Step-by-step explanation:

That would be (18/24) * 100

= 3/4 * 100

= 75%

The correct answer would be 75 percent

a manufacturer wishes to recieve $4800 for a batch of items. when 1200 items were found to be defective, the selling cost per item increased by $0.20. how many items were manufactured.

Answers

Answer:

Abput 12000 items were produced yes and i think it is nice that yk like yes

Step-by-step explanation:

What is the value of x?

Answers

Answer:

lj= lk din 30 give lj= 4✓2

and ml=x= lj cos 45

on solving x= 4✓2 cos45=4

Find a solution to the linear equation 13x+y=26 by filling in the boxes with a valid value of x and y.

Answers

Answer:

y = -13x+26

Step-by-step explanation:

13x+y=26

y= -13x+26

Question 17 of 30 Will the answer to the subtraction problem below be odd or even? 743 - 353 = ? O A. Odd B.Even

Answers

The answer would be 390 and it is Even

Answer:

answer is 390 which is even number

any number you see has 0,2,4,6,8 at the end of a number is considered as an even number.

any number you see has 1,3,5,7,9 at the end of a number is considered as an odd number.

3 more than 1/2 of a number is 10. What is the number (n)?​

Answers

Answer:15

Step-by-step explanation:

3+1/2=3/2

3/2*10=3*5=15

15

What is the value of x?

Answers

Answer:

Step-by-step explanation:

All the three sides are equal. So, it is an equilateral triangle.

Each angle in an equilateral triangle = 60°

7x + 4 = 60

    7x  = 60 -4

    7x   = 56

      x = 56/7

x = 8

An Eiffel Tower mural is 2 meters high and 0.77 meters wide. If the actual tower is 125 meters wide, how tall is it to the nearest meter?

Answers

If the actual tower is 125 meters wide, then the height will be approximately 325m

Similarity ratio of shapes

The ratio of the similar sides of the shape is equal to a constant.

If an Eiffel Tower mural is 2 meters high and 0.77 meters wide the  actual tower is 125 meters wide, then the new height will be expressed as;
2/0.77 = H/125

Cross multiply

0.77H = 2 * 125
0.77H = 250
H = 250/0.77
H = 325m

This means that if the actual tower is 125 meters wide, then the height will be approximately 325m

Learn more on similar shapes here: https://brainly.com/question/2644832

Darren's rectangle measures 3 1/4 units by 4 1/3 units. what is its area

area = ? ?/?

Answers

Answer:

14 1/13

Step-by-step explanation:

13/4*13/3=169/12=14 1/13

6. Roughly what percent of the US
flag is red?

Answers

Answer:

about 14 percent but the exact is 14 3

the red part takes up exactly 41.5% of the US flag. so roughly 41 percent?

extra info: the white is 40.9% and the blue is 17.6%

i hope this helps you!:)

Use E to decode the coded message matrix

Answers

Answer:

D because I was doing it for a while and I know it

Find the midpoint of BF B(0,-14) F(4,6)

Answers

Answer:

Step-by-step explanation:

B(0, -14) ⇒ x₁ = 0 & y₁ = -14

F(4,6) ⇒  x₂ = 4 & y₂ = 6

[tex]Midpoint = \left(\dfrac{x_{1}+x_{2}}{2}, \dfrac{y_{1}+y_{2}}{2} \right)[/tex]

                [tex]=\left(\dfrac{0+4}{2},\dfrac{-14 + 6}{2}\right)\\\\\\= \left(\dfrac{4}{2}, \dfrac{-8}{2} \right)\\\\\\=\left(2, -4 \right)[/tex]

What is the mean of the set of data below?

Answers

Answer:

Mean = 8

Step-by-step explanation:

add all the numbers

2+3+5+6+8+11+11+12+14 = 72

then divide by how many number there are which is 9

72 / 9 = 8

Trigonometric Equations

Solve the equation over the interval [0°, 360°)

2sin^2theta-5sintheta+3=0

Answers

Step-by-step explanation:

The solutions are

S

=

{

30

º

,

150

º

,

270

º

}

Explanation:

The equation is

2

sin

2

θ

+

sin

θ

1

=

0

We can factorise the LHS

(

2

sin

θ

1

)

(

sin

θ

+

1

)

=

0

Therefore,

sin

θ

=

1

,

,

θ

=

270

º

sin

θ

=

1

2

,

,

θ

=

30

º

,

150

º

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