What is the equation of the line of symmetry for the parabola represented by the equation y = −2x^2 − 16x − 27?

Enter your answer as the correct equation, like this: x = 42

Answer:

1. -3/1

2.negative

3.$18

Step-by-step explanation:

since the graph is going down, it is negative, and look at the ending points on the x and y-axis. 18/6 is 3. so the slop is -3 :)

Answer:

1. -3

2. negative

3. $18

Step-by-step explanation:

1. slope is rise/run so...

-3/1=-3

2. because run was a change of 3 DOWN the y axis we and run is a change of 1 to the right on x axis we have a negative slope. -3

3. she borrowed $18. Vertical intercept means the point where our line crosses the vertical axis. (Vertical axis is Y axis.)

Answer:

8/9

Step-by-step explanation:

3/6 + 7/ 18

Make the denominator common by finding the LCM = 18

Multiply 3 by 3

Therefore sum = 3*3 + 7/ 18

sum = 9+7/18

sum = 16/18

=> 8/9

Please mark my answer as the brainliest for further answers :)

Answer:

The answer is The Commutative property

This means the Commutative property states that you can add or multiply regardless of how the numbers are grouped.

Answer:

39.52

Step-by-step explanation:

just multiply 3.8 by 104 and thats how many liters

Answer:

Difference in scores between his 7th and 8th quizzes = 22

Step-by-step explanation:

Given: Mean score for first 6 quizzes is 33 points. After his 7th quiz his mean score was 32 points. After the 8th quiz the mean was 34.

To find: difference in scores between his 7th and 8th quizzes

Solution:

Mean scores = Total points scored in quizzes ÷ Number of quizzes

So,

Total points scored in quizzes = Mean scores × Number of quizzes

As mean score for first 6 quizzes is 33 points,

Total points scored in 6 quizzes = 6 × 33 = 198

As mean score for first 7 quizzes is 32 points,

Total points scored in 7 quizzes = 7 × 32 = 224

So,

7th score = Total points scored in 7 quizzes - Total points scored in 6 quizzes

               = 224 - 198

               = 26

As mean score for first 8 quizzes is 34 points,

Total points scored in 8 quizzes = 8 × 34 = 272

So,

8th score = Total points scored in 8 quizzes - Total points scored in 7 quizzes

               = 272 - 224

               = 48

Therefore,

Difference in scores between his 7th and 8th quizzes = 48 - 26

                                                                                          = 22

Answer:

y = 2x - 5

Step-by-step explanation:

Hi,

y = 2x + b

1 = 2 (3) + b

1 = 6 + b

-5 = b

y = 2x - 5

I hope this helps :)

Answer:

(s - 1)(s² + s + 1)

Step-by-step explanation:

s³ - 1 ← is a difference of cubes and factors in general as

a³ - b³ = (a - b)(a² + ab + b²) , then

s³ - 1

= s³ - 1³

= (s - 1)(s² + s + 1)

The required factorized form of the given expression is (s - 1)(s² + s + 1).

Factorization, also known as factoring, is the breakdown of one element into a product of other objects, or factors, which when multiplied together generate the original. For example, the number 21 factors into primes as 3 × 7, and the polynomial x² − 9 factors as (x+3)(x-3).

We have been given that the expression below as

s³ - 1

We have to determine the factor of the given expression

As per the question, we have

s³ - 1

This is a difference between cubes and factors in general as

a³ - b³ = (a - b)(a² + ab + b²) , then

⇒ s³ - 1 = s³ - 1³

⇒ (s - 1)(s² + s + 1)

Thus, the required factorized form is (s - 1)(s² + s + 1).

Learn more about the Factorization here:

brainly.com/question/4184435

#SPJ2

Answer: discount was 186

Step-by-step explanation: original price is x.

15 % = 0.15x , and x -0.15x= 1054 and 0.85x = 1054

Then x = 1054/0.85 = 1240. Discount was 1240-1054 = 186

Answer:

169

Step-by-step explanation:

Answer:

360 tons

Step-by-step explanation:

Coke burned : cast iron = 15 : 16

The smelter produces 384 tons of cast iron a day

Let x = tons of coke burned

Coke burned : cast iron = x : 384

Equate both ratios

15 : 16 = x : 384

15/16 = x/384

Cross product

15 * 384 = 16 * x

5,760 = 16x

x = 5,760/16

x = 360

x = tons of coke burned = 360 tons

Answer:

50m cubic

Step-by-step explanation:

Answer:

21n

Step-by-step explanation:

7(3n)

7×3

21n

I hope this helps

Answer:

go through the other door and get your dog... and then just wait for a parent to fix the door so you dont rip it of the rims

Step-by-step explanation:

Answer:

Just go out through the backdoor and save your dog and wait for your parents duh

Step-by-step explanation:

X = 10 (use pyth)

Y = 11.18(use pyth)

Answer:

2 or 4 because it's in the middle I think 2

Step-by-step explanation:

hope this helps have a good rest of your night/day :) ❤

can I please get brainliest if correct only got like 4 pls

Answer:

1.732

Step-by-step explanation:

cube root of 81 is

=1.732

Answer: 3(cos(90degrees)+isin(90degrees))

Answer:

1) Given the equation y = 35(0.57)^x

a) Does this equation represent growth or decay? ______Decay_________

b) What is the rate of growth or decay? _______43%________

1-0.57=0.43 100x0.43=43%

c) What is the initial value? _____35________

d) Evaluate for x = 3

y=(35)(0.57)^(3)

=(35)(0.185193)

=6.481755

Answer:

Actual length of ship is  150  meters.

Step-by-step explanation:

As model ship is built to a scale of  

1 centimeter  : 5  meters and

length of model ship is  30  centimeters

Actual length of ship is  30 × 5 = 150  meters.

Decimal 3rd row: 0.75

Fraction 3rd row: 75%

Decimal last row: 0.15

Fraction last row: 15%

Answer:

75%, 0.75

Step-by-step explanation:

The answer is 75% because if you do the math it takes 6 15's to reach the requirement of the Fraction that is on the right. So that would make the decimal form be 0.75. If you find any fault in my answer let me know. Thanks. Have a good day!

Step-by-step explanation:

(x-2) is not a factor

x = -3 is not a zero

Answer:

NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!

Step-by-step explanation:

Answer: B

Step-by-step explanation:

if I'm wrong sry lol

Answer:

D

Step-by-step explanation:

- 117° is positioned in the 3rd quadrant where sine < 0

The related acute angle is 180° - 117° = 63°

Then

sin(- 117)°

= - sin63° → D

Answer:

Probability

b-bald Hisoka

Answer:

PROBABILITY

Step-by-step explanation:

Probability of an event is a number that tells how likely it is to happen

Answer:

1. 40% 2. 1/10

Step-by-step explanation:

1. 8/20 * 100

800/20=40

2. 1/(3+1+4+2)

1/10

Answer:

e=g(h-f) or e=gh - gf

Step-by-step explanation:

Answer:

e = hg - fg

Step-by-step explanation:

Given

[tex]\frac{e}{g}[/tex] + f = h ( multiply through by g to clear the fraction )

e + fg = hg ( subtract fg from both sides )

e = hg - fg

Answer:

John has a sheet of paper that is 8 feet long. He cuts the length of paper into eighths, and then cuts the length of each of these [tex]\frac{1}{8}[/tex] pieces into fourths. How many pieces does he have? How many inches long is each piece?

Step-by-step explanation:

Answer:

Decreased I think because they bumped into the other person

Step-by-step explanation:

Answer:

increased

 i just heard my brother say it because he's in highschool. TwT

Answer:

y=5/3 is the only real solution

Step-by-step explanation:

Solve for y over the real numbers:

11 y^2 - 19 y - 10 = -4 y^2

Add 4 y^2 to both sides:

15 y^2 - 19 y - 10 = 0

The left hand side factors into a product with two terms:

(3 y - 5) (5 y + 2) = 0

Split into two equations:

3 y - 5 = 0 or 5 y + 2 = 0

Add 5 to both sides:

3 y = 5 or 5 y + 2 = 0

Divide both sides by 3:

y = 5/3 or 5 y + 2 = 0

Subtract 2 from both sides:

y = 5/3 or 5 y = -2

Divide both sides by 5:

Answer: |

| y = 5/3 or y = -2/5

Answer:

20 metes

Step-by-step explanation:

:)