3 − 3k + 7k = 5b find the equation for k

Answer:

(x - 4)² = 24y

Step-by-step explanation:

In a parabola with focus at (x, y) and directrix at y = k - p, we can write;

Focus: (h, (k + p))

Directrix: y = k - p

We are given focus at (4, 6)

Thus;

h = 4 &

k + p = 6 - - - (1)

Also, directrix at y = -6

Thus;

k - p = -6 - - - (2)

Adding eq(1) and eq(2) together gives us;

2k = 0

k = 0

Thus, p = 6

The equation takes the formula;

(x - h)² = 4p(y - k)

Plugging in the relevant values;

(x - 4)² = 4(6)(y - 0)

(x - 4)² = 24y

Answer:

(x-4)^2=24y

Step-by-step explanation:

I took the test and got it right.

Answer:

True

Step-by-step explanation:

Answer:

Step-by-step explanation:

9(x+1)=25+x

9x+9=25+x  subtract x both sides

8x+9=25    subtract 9 both sides

8x=16  divide by 8

x=2

4(2x-5)+7(x+2)

bracket means multiplying

do 4(2x+5) first

4*2x=8x

4*-5=-20

7*x=7x

7*2=14

8x-20+7x+14

do the x first

8x+7x=15x

-20+14=-6

answers: 15x-6 or -6+15x

Answer:

There are 2 terms in the given expression.

Step-by-step explanation:

A term is a simple math expression.

In the expression given, there are two terms: '7h' and '3'.

'7h' - '3​'

Hope this helps.

Step-by-step explanation:

HEY PLS DON'T JOIN THE ZOOM CALL OF A PERSON WHO'S ID IS 825 338 1513 (I'M NOT SAYING THE PASSWORD) HE IS A CHILD PREDATOR AND A PERV. HE HAS LOTS OF ACCOUNTS ON BRAINLY BUT HIS ZOOM NAME IS MYSTERIOUS MEN.. HE ASKS FOR GIRLS TO SHOW THEIR BODIES AND -------- PLEASE REPORT HIM IF YOU SEE A QUESTION LIKE THAT. WE NEED TO TAKE HIM DOWN!!! PLS COPY AND PASTE THIS TO OTHER COMMENT SECTIONS!!

Answer:

55%

Step-by-step explanation:

$598.99–$385.99

=$213

$213/$385.99 × 100%

=55%

The  profit percent is 55.1%.

The profit formula aids in determining the gain in any financial transaction as well as the profit made by selling a specific product, which is typically done in a business. When the selling price exceeds the cost price, a profit can be determined. So, the equation to calculate the profit is:

Profit = Selling Price (S.P.) - Cost Price (C.P.)

and, profit percent =  (Profit/Cost Price) × 100.

Given:

Playground Center purchases swing sets for $385.99.

Selling price of swing sets = $598.99.

Profit =  $598.99–$385.99

Profit = $213

and, profit percent

=profit / CP x 100

= $213/$385.99 × 100%

=0.551 x 100

= 55.1%

hence, the profit percent is 55.1%.

Learn more about profit percent here:

https://brainly.com/question/14411361

#SPJ2

Answer:

ANSWER IS ........... C

Step-by-step explanation:

Answer:

R-{-5}

Step-by-step explanation:

you get the vertex by making the denominator =0

ex.z+5=0 ,z=-5

then we see if the rational function has a constant beside it ex. 3÷z+5-3 ,but in this you Don't have one so its 0

so the vertex would be (-5,0)

the domain =R-{-5} , range=R-{0}

Step-by-step explanation:

-3+5=-10

−3x+5−5=−10−5

−3x=−15

−3x÷−3=−15÷-3

x=5

(-2 4/5)(1 4/5)

=-14/5×19/5

=-14×9/5×5

=-126/25

=-5 1/25

Answer:

3. x = 5

4. -5  1/25

Step-by-step explanation:

Question 3 Solving:

your equation is -3x + 5 = -10

subtract 5 from both sides to get the term with x alone: -3x = -15

divide both sides by -3 to isolate x (remember that a minus divided by minus is plus): x = 5

To check:

plug in 5 to x and see if you get -10 on both sides

-3(5) + 5 = -10

first multiply -3 and 5:

-15 + 5 = -10

then add 5 to -15:

-10 = -10

if the number are equal then you solved the equation correctly

Question 4:

multiply the whole number by the denominator, then add the numerator to the product, and that number will be your new numerator ( make sure to leave the negative sign out of this computation)

so multiply 2 and 5 to get 10, then add 4 to get 14

your new fraction is -14/5

practice doing the same thing to the other mixed fraction

you should get a new fraction of 9/5

multiply the numerators and denominators

so multiply -14 and 9, and multiply 5 and 5

you now have -126/25

divide 126 by 25 to get your whole number of the mixed fraction

you should have -5  ?/25

to find the numerator, multiply your whole number by your denominator (25 x 5 = 125), then subtract this from your numerator of the improper fraction

126-125 = 1

now you have an answer of -5  1/25

Answer:

the equations are off

Step-by-step explanation:

x represents adults cost 10 not 20

y childen at g

x+y  less than 25 people

10(x) + 6(y) greater than 200 dollars

Answer:

19,6

Step-by-step explanation:

Answer:

x=(c/d)-1

Step-by-step explanation:

the answer to your question is x=c/d - 1

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

9514 1404 393

Answer:

  110°

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles:

  x° = 50° + 60°

  x° = 110°

Answer:

x = 90

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles, then

x = ∠ A + ∠ B = 30 + 60 = 90

Answer:

first one is 1

Second is -2/3

Answer:

5x-3(x-2)=4

5x-3x+6=4

2x+6=4

2x= 4-6

2x= -2

x = -1

Answer: the answer is 35. Are you in k12?

Answer:

The "paradox" is flawed because if there exists an unstoppable force, it follows logically that there cannot be any such thing as an immovable object and vice versa.

Step-by-step explanation:

:>

Answer:

nothing happens

Step-by-step explanation:

probably incorrect :0

Answer:

x = 8 :)

Step-by-step explanation:

5x + 5(3) = 55

5x + 15 = 55

5x = 40

40/5 = 8x = 8

Answer:

8

Step-by-step explanation:

Step 1:

5x + 5 ( 3 ) = 55         Equation

Step 2:

5x + 15 = 55     Multiply

Step 3:

5x = 40        Subtract 15 on both sides

Step 4:

x = 40 ÷ 5          Divide

Answer:

x = 8

Hope This Helps :)

Answer:

x=2

Step-by-step explanation:

Add 4 to both sides:

-2=-4+x​

-2+4=-4+4+x​

2=x

Answer:

[tex]x = 2[/tex]

Step-by-step explanation:

First we must add 4 to both sides.

[tex]-2 = -4 + x[/tex]

+4      +4

-4 + 4 = 0

-2 +4 = 2

Isolating a variable means that it is alone on its side of the eqation.

[tex]2 = x[/tex]

x is now isolated and we also have the solution for it.

[tex]x = 2[/tex]

Answer:

15

Step-by-step explanation:

15 is half of 30, the output values are the input values divided by 2 :)

Answer:

Step-by-step explanation:

11/334 pounds= roughly 0.329 a pound or 0.33

Answer:

200

Step-by-step explanation:

x-15% of x= Rs.170

x - 0.15x = 170

0.85x = 170

x = 170/0.85

x = 17000/85

x = 200

Answer:

Do you need the result of the end?

Step-by-step explanation:

5*3=15

15-3=12

Answer:

D. 50

Step-by-step explanation:

Answer:

50°

Step-by-step explanation:

180-130=50

Answer: 2(9a + 8)

Step-by-step explanation:

2 is the only common factor of both 18 and 16. You put the common factor outside of the parenthesis. You divide 2 by both numbers and put the equation in the parenthesis.

Answer

3944

explaination:

multiply 4640 by 85%, you get 394400. next add n with one hundred. now divide 394400 by 100 and you get 3944. enjoy :)