Mathematics High School

Write the equation of the directrix of the parabola shown below.
y2 + 16y+ 4x + 4 = 0

Answers

Answer 1

Answer:

x = 16 is the answer

Step-by-step explanation:

Related Questions

help what is the value of b?​

Answers

Answer:

44 °

Step-by-step explanation:

180- (84+52) = 44

Answer:

44 degrees

Step-by-step explanation:

A triangle has a total of 180 degrees.

First, add the 2 sides that are given to you:

84 + 52 = 136 degrees

Subtract 136 from 180 to find the remaining angle:

180 - 136 = 44 degrees

b = 44 degrees

Ramon walks at a constant rate of 6mi/hr. Write an equation using the variables m and h to represent how many miles he would walk in any given hour.​

Answers

Answer:

Key for H and M. ( H-Hour)(M-Mile)

6m= h divided by 10=6

Step-by-step explanation:

6 times 10= 60 minutes. So 1 mile every 10 minutes. This was hard, but it clicked at the end. Good luck, and remember to sub out the divided and multiply by with the signs!

A drawing has a scale of 1:40
On the drawing, a kitchen is a rectangle measuring 14 cm by 22 cm
A bedroom has an actual area of 500 000 cm?
How much smaller, in cm2, is the kitchen than the bedroom?

Answers

Area of kitchen = (14*40)(22*40) = 448,000 sq cm

500,000 - 448,000 = 52,000
The kitchen is 52,000 square centimeters smaller than the bedroom.

3(2x + 1) = 6(5x - 4)

Answers

Answer:

X= 9 over 8 or 9/8

Step-by-step explanation:

hopefully this helps

Answer:

9/8 or 1.125 or 1 1/8

Step-by-step explanation:

10.) Combine the like terms in the following expression: 8 + 3x + x + 5 + 2x *

Answers

Answer:

6x+13

Step-by-step explanation:

I hope this is right.

I’m pretty sure it’s 6x+13

Elizabeth changed her time for the mile walk from 30 minutes to 24 minutes. What was the percent of change?​

Answers

-20%

Basically, we are trying to find the change from 30 to 24 in terms of percent. We do this in three steps:

1) Find the difference between 30 and 24 as a number.

2) Divide the result from Step 1 by the starting number 30.

3) Multiply the result from Step 2 by 100 to get it in terms of percent.

The three steps above can be made into a formula. Thus, to find the percent change from 30 to 24, we use this formula:

((Y-X)/X)*100 = Percent Change

X is the starting number 30, and Y is the ending number 24 that it changed to. When we enter these numbers into the formula, we get:

((24-30)/30)*100 = -20.00%

Thus, the answer to the question "What is the Percent Change from 30 to 24?" is:

-20.00%

standard form

-3 time 2 time A +5(-7b)+(12 time c time 4)

Answers

Answer:

-6A - 35b + 48c

hope it's helpful ❤❤❤❤❤❤❤

:)

THANK YOU.

what is the slope of the line passes through the points (-3, -3) and (-5, -2) in simplest form help me

Answers

Answer:

Slope, [tex]m=\dfrac{-1}{2}[/tex]

Step-by-step explanation:

We need to find the slope of the line passes through the points (-3, -3) and (-5, -2).

The formula for the slope of a line is given by :

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

Put x₁ = -3, y₁ = -3, x₂ =-5 and y₂ = -2

So,

[tex]m=\dfrac{-2-(-3)}{-5-(-3)}\\\\m=\dfrac{-1}{2}[/tex]

So, the slope of the line is [tex]\dfrac{-1}{2}[/tex].

Question 2
How many solutions is x=0?
Zero
Infinitely many
One

Answers

Answer:

x= 0 has one solution

Step-by-step explanation:

Here, we want to get the number of solution

Looking at the relation, we can see that what we have is a linear relation

mathematically, a linear relation has a single solution

Thus, x = 0 has one solution

- 10x -12 = -12x + 4
Solve for x pls

Answers

Answer:

x=8

Step-by-step explanation:

- 10x -12 = -12x + 4

-10x+12x=4+12

2x=16

x=8

Answer:

x = 8

Explanation:- 10x -12 = -12x + 4Add 12x to both sides

−10x − 12 + 12x = −12x + 4 + 12x

2x − 12 = 4

Add 12 to both sides

2x − 12 + 12 = 4 + 12

2x = 16

Divide both sides by 2

2x / 2 = 16 / 2

x = 8

- PNW

IF YOU DECIDE TO HELP ILY!!

Answers

Answer:

n equals 4

Step-by-step explanation:

−9.3=d−3.4

Help

Please
Mr

Answers

Answer:

d = -5.9

Step-by-step explanation:

7. Which of the following is a true statement
about the angles in the figure below?

Answers

Answer:

d

Step-by-step explanation:

Answer:D

Step-by-step explanation:

Anne can swim 4 laps in 3 minutes. How many laps can she swim in 27 minutes.

Answers

Answer:

( 27 x 4 ) /3 = 36  laps

Step-by-step explanation:

Anne can swim 36 laps in 27 minutes. You would set up a proportion 4/3 = ?/27 and figure out what multiplied b

Set up a proportion to solve: 24 is 25% of what number?

Answers

Answer:

96

Step-by-step explanation:

25% can be written as 0.25

so:

24= .25*x

Divide both sides by 0.25

24 - .25x

.25 - .25

x=96

Evaluate mn when m=8 and n= 1/2

Answers

Answer:

4

Step-by-step explanation:

you just multiply 8(m) by 1/2(n)

Answer would be 4. Multiply 8 by 1/2 and you get 4.


Which equation is nonlinear?
o 2x - y = 9
Oy = x2 + 3
Oy = 2x - 3
OX= y

Answers

X=y is not a linear equation

Select the fraction that is equivalent to one half.

HOW DO I DO THIS PLZ HELP

Answers

Answer:

1/2 one half

Step-by-step explanation:

Answer:

Multiply both the numerator and the denominator by the same whole number.

For example;

If you multiply 1/2 by 2/2, this will equal 2/4. You can simplify 2/4 to 1/2.

So to find 1/2 to be equivalent to another fraction, multiply both the numerator and the denominator by the same number to find a fraction that equals 1/2.

Ben wants to buy a guitar. The regular price of the guitar is $329.99. The sale price of the guitar is 25% off of the regular price. What is the sale price of the guitar?

Answers

$247.49 because 329.99 minus 25 percent gives that amount

Kara is the manager of a video game store. She is in charge of buying the video games for the store to sell. She buys video games from a wholesaler that sells them for $10

each. The wholesaler also charges a fee of $160 for each bulk purchase. Kara then sells the video games for $14 each.

Write an equation to represent the cost to buy videos from the wholesaler. Let x represent the number of videos bought. Let y represent the total cost in dollars.

Answers

Answer: y = 10x + 160

Step-by-step explanation:

The cost follows the linear equation format of:

y = mx + c

Where:

y = dependent variable or the total cost

m is the cost per each additional unit of x

x is the number of video games

c is the constant cost or rather the fee per bulk purchase

Formula is therefore:

y = 10x + 160

Using the formula. Assuming Kara buys 100 video games, the cost would be:

y = 10 * 100 + 160

y = $1,160

HELP ASAP
The number of minutes played and the number of field goal attempts for
certain players of the Indiana Pacers for the 1999–2000 season is shown below.
Player
Player
Best
Rose
Miller
Smits
Croshere
Davis
Minutes Field Goal
Played Attempts
2978 1196
2987 1041
1852
890
1885
653
Jackson
Perkins
Minutes Field Goal
Played Attempts
1691 561
2190 570
1620-- 441
582 187
634
108
Mullin
Mckey
2127
602
17. Make a scatter plot of the data.
18. Does the scatter plot show any relationship? If so, is it positive or
negative? Explain your reasoning.
19. Suppose a player played 2500 minutes. Predict the number of field goal
attempts for that player.

Answers

Answer:

See below and the attachment

Step-by-step explanation:

Refer to attached graph.

It includes the points and a best fit line produced by a graphing calculator.

17. The scatter plot is attached18. There is a positive slope. Number of field goal attempts increase as minutes played increase.19. The point is plotted: 2500 minutes gives about 880 field goal attempts.

Answer:

It includes the points and a best fit line produced by a graphing calculator.

17. The scatter plot is attached

18. There is a positive slope. Number of field goal attempts increase as minutes played increase.

19. The point is plotted: 2500 minutes gives about 880 field goal attempts.

Step-by-step explanation:

What is the value of
2021
−
2223
+
2425
?
?

Answers

Answer:

2223

Step-by-step explanation:

We need to find the value of 2021-2223+2425.

Firstly subtract 2223 from 2021.

2021-2223 = -202

Now add -202 and 2425. So,

2425 +(-202) = 2223

So, the value of 2021-2223+2425 is 2223. Hence, this is the required solution.


Jordyn made some bracelets and sold them at a craft fair for $8 each. She paid $50 in
materials and fees. Jordyn's profit after the fair was $310. She wants to know how
many bracelets she sold.

Answers

Answer:

38

Step-by-step explanation:

because when u divide it

38 is the right answer

Can y’all help me plz

Answers

B is 360 and c is 72

Solve by completing the square x^2-10x-24=0

Answers

Answer:

 x = -2  and x =12

Step-by-step explanation:

Explanation:-

Given equation  x² - 10 x - 24=0

                          x² - 12 x +2x - 24 =0

                ⇒   x (x-12) +2( x -12) =0

              ⇒  x+2 =0 and x-12 =0

             x = -2  and x =12

Please help I have 30 minutes or I fail this assignment no joke please answer all the questions there's only four.

Answers

Answer:

Sorry if I am wrong don´t count on me tho I would wait until someone else answers cause I might be wrong.

1). 9

2). -2

3). i don´t know

4). i don´t know

Step-by-step explanation:

Sorry plz don´t be mad I´m only in 4th grade

..Kyle purchased a plant that was 2 inches tall. The function h(t) = 2 + 0.75t models the height of the plant t months after Kyle purchased the plant. What is the meaning of h(11)?
a. The plant is 12 inches tall after 11 months.

b. The plants is 11 inches tall after 12 months.

c. The plant is 11 inches tall after 10.25 months

d. The plant is 10.25 inches tall after 11 months.​

Answers

Answer:

a

Step-by-step explanation:

I NEED HELP! I've failed this test twice and need to get it right. HELP PLEASE!

Answers

Answer:

180

Step-by-step explanation:

C + D = 180 degrees since they are a linear pair

D = 127 degrees, so

C + 127 = 180

to get the C, you need to subtract 180 degrees bt 127 degrees

180 - 127 = C

73000.008 = 7.3 10° + 8 x 10
Work out the powers of c and d

Answers

Answer:

x=2.488966,−2.488966

Step-by-step explanation:

The Bridal Shop bought a dress from a supplier for $105 wholesale and applied a 65% markup to the price.
If a 7.5% sales tax were added after a 20% discount was used, what would be the total cost to purchase the dress?
A
$146.20

B
$149.00

C
$158.48

D
$160.17

Answers

Answer:

B $149.00

Step-by-step explanation:

105 * 1.65 =   173.25      (100%+ 65%)    Price with the markup            

173.25 *0.80  138.60  (Price after 20% discount .The price will be the 80%)    

138.60 * 1.075 =   148.995  (price with 7.5  sales tax.)  

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