(x^2)+8x+12=0

i need help with this one

Answer:

Yes. f(x) and g(x) are inverses of one another

Step-by-step explanation:

[tex]f(x) = - \frac{1}{2} x - 2 \\ y = - \frac{1}{2} x - 2 \\ x = - \frac{1}{2} y - 2 \\ x + 2 = - \frac{1}{2} y \\ - 2(x + 2) = - \frac{1}{2} y \times - 2 \\ - 2x - 4 = y \\ {f }^{ - 1} (x) = - 2x - 4[/tex]

In step 1 we just copied the original function.

In step 2 we substituted y for f(x).

in step 3 we switched the variables.

in step 4 we added 2 to both sides.

in step 5 we multiply both sides by -2

In step 6 we solved for y.

In step 7 is just a fancy way of saying the inverse function f(x) = -2x - 4

Answer:

10 tragic and histories, and 1y comedies

Step-by-step explanation:

let X = the number of tragedies

let X = the number of histories

2x - 3 = the number of comedies

x + x + 2x - 3 = 37

4x = 40

x = 10

2x - 3 = 2(10) - 3 = 17 comedies.

Answer:

c a b

Step-by-step explanation:

brailiest pls

Answer:

5 1/2 x 1/3 = 11x/6

Answer:

the two words that means addition are

plus, sum and calculation..............

Answer:

482.05

Step-by-step explanation:

31/100 x 1555 = 482.05

This should be the answer, good luck!

Using inequalities, the number of tiles he could buy is equals to 4 or less than 4.

He is buying tiles and he wants to spend $200 or less on his purchase.

The ties he likes the best cost $50.

Therefore, the situation will form an inequalities as follows;

let

t = number of tiles

50t ≤ 200

t ≤ 200 / 50

t ≤ 4

The the number of tiles he could buy is equals to 4 or less than 4.

learn more inequalities here: https://brainly.com/question/14875221

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Answer:

Marta can arrange a maximum of 3 plates.

Solution:

Given, Marta has just moved to a new town and wants to share plates of baked goods with her neighbors.

She has 18 cookies and 15 brownies to share, and wants to split them equally among the plates with no food left over.  

We have to find what is the greatest number of plates she can make to share?

Now, let the number of brownies per each plate be n.

Then, number of plates used =  

Here, n is number of brownies per plate and  is number of cookies per plate.

So, both n and  should be whole numbers. Then, for  to be whole number 6n must be an multiple of 5.

And to be particular, n should be a multiple of 5 as 6 is not multiple of 5.

So, possible n values are, 5, 10, 15. We need not take above 15 as number of brownies available are 15

In order to arrange in more plates we have to take less count in single plate. Then, n = 5.

Now, number of plates  

Hence, Marta can arrange a maximum of 3 plates.

Answer:

D

Step-by-step explanation:

Recall that a⟌b means b/a. So, we want to find the expression: 20⟌4 and 4 ÷ 20. By examining, we see that D has those two expressions.

So, the answer is [tex]\boxed{D}[/tex] and we're done!

Answer:

Answer:

D

Step-by-step explanation:

Recall that a⟌b means b/a. So, we want to find the expression: 20⟌4 and 4 ÷ 20. By examining, we see that D has those two expressions.

So, the answer is  and we're done!

Answer:

k = 7

Step-by-step explanation:

-40+25k +5k = -250

30k = -250 + 40

k = -210/30

k = 7

Answer:

t = 108

Step-by-step explanation:

[tex]\frac{5}{9}[/tex] t - 27 = [tex]\frac{1}{9}[/tex] t + 21 ( subtract [tex]\frac{1}{9}[/tex] t from both sides )

[tex]\frac{4}{9}[/tex] t - 27 = 21 ( add 27 to both sides )

[tex]\frac{4}{9}[/tex] t = 48 ( multiply both sides by 9 )

4t = 432 ( divide both sides by 4 )

t = 108

Answer:

Slope intercept form (y = mx + b) = [tex]y = \frac{2}{3} x + \frac{7}{3}[/tex]

X intercept (slope): [tex](-\frac{7}{2} , 0)[/tex]

Y Intercept: [tex](0, \frac{7}{3} )[/tex]

Step-by-step explanation:

To find the x-intercept, substitute in  0  for  y and solve for  x.

To find the y-intercept, substitute in  0  for  x and solve for  y.

Hope this helps! :D

Step-by-step explanation:

solve for y

[tex]3y - 7 = 2x[/tex]

isolate the y variable to one side

let's first add 7 to both sides of the equation

[tex]3y - 7 + 7 = 2x + 7[/tex]

sevens on the left side of the equation cancel so we get

[tex]3y = 2x + 7[/tex]

Now let's divide everything in the equation by 3 to further isolate the y variable

[tex] \frac{3y}{3} = \frac{2x}{3} + \frac{7}{3} [/tex]

The threes on the left hand side of the equation cancel

[tex] y = \frac{2}{3}x + \frac{7}{3} [/tex]

Answer:

3

Step-by-step explanation:

_42÷ (-8+-6

-42÷-14

3

this is the answer

Answer:

Step-by-step explanation:

Use  the points (0, 5) and (6, 0).

The slope is:

Compare the absolute value of slopes:

The slope of the line A is shallower (or less steep, use the corresponding word from the drop down list) of slope of line B.

9514 1404 393

Answer:

  (b) 156 miles

Step-by-step explanation:

In 2 hours, Marian will have driven 2×40 = 80 miles, and Ming will have driven 2×38 = 76 miles. The distance between them is ...

  80 mi + 76 mi = 156 mi

The drivers will be 156 miles apart in 2 hours.

Answer:

1/8

Step-by-step explanation:

(1-0)/(3+5)

1/8

The value of the numerical expression {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7) will be 2.

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

The expression is given below.

⇒ {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7)

Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction are all part of the PEMDAS formula. To answer the problem properly and accurately, this rule must be followed.

⇒ {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7)

⇒ {[(−30) ÷ (−30)]² − 15} ÷ (−7)

⇒ {[1]² − 15} ÷ (−7)

⇒ {1 − 15} ÷ (−7)

⇒ (−14) ÷ (−7)

⇒ 2

The value of the numerical expression {[(30 − 60) ÷ (−30)]² − 15} ÷ (−7) will be 2.

More about the value of the expression link is given below.

brainly.com/question/23671908

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"keep-change-flip" is a strategy used to dividing fractions.

always change the mix fraction to a improper fraction and you slove.

I'll do the first one and the rest is basically done the same way.

for the last fraction equation I cross multiply the 4 divided into 4 gives you 1 and the 3 divided into 21 gives you 7.

AB = 10

Step-by-step explanation:

AB² = (6 - 0)² + (10 - 2)²

AB² = 6² + 8²

AB² = 36 + 64

AB² = 100

AB² = 10²

AB = 10

9514 1404 393

Answer:

  x = 11

Step-by-step explanation:

The two marked angles are corresponding angles, so are congruent.

  7x+14 = 9x-8

  22 = 2x

  11 = x

__

Check

The angle measures are ...

  7(11) +14 = 77 +14 = 91 . . . degrees

  9(11) -8 = 99 -8 = 91 . . . degrees

Answer:

5$ for a stamp

Step-by-step explanation: First calculate the TOTAL amount of money spent on the food tickets. 4 friends, 3$ each for a ticket = 12$. Total cost is 32$ so do 32$-12$ to find how much else you paid after the 12$ on food ticket which is 20$. Divide the reamaining money (20$) by 4 because of the four friends. Than there is the price for the unlimited ride stamp 5$. Think of it like this. x+12=32.    x=20,         x/4=20/4     x=5$. Let me know if im wrong

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The value of the numerical expression −3[−15 − 2(−9)]² will be negative 27.

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

The expression is given below.

⇒ −3[−15 − 2(−9)]²

Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction are all part of the PEMDAS formula. To answer the problem properly and accurately, this rule must be followed.

⇒ −3[−15 − 2(−9)]²

⇒ −3[−15 + 18]²

⇒ −3[3]²

⇒ −3 × 9

⇒ −27

The value of the numerical expression −3[−15 − 2(−9)]² will be negative 27.

More about the value of the expression link is given below.

brainly.com/question/23671908

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Answer:

Step-by-step explanation:

Not sure what "given l m n " means...

If you want the value of x in (9x+18) = (2x+19)

then

    (9x + 18) = (2x + 19)

9x + 18 - 18 = 2x + 19 - 18

             9x = 2x + 1

      9x - 2x = 2x - 2x + 1

              7x = 1

           7x/7 = 1/7

               x = 1/7

question:

where is the question mam?

Answer:

As follows,

Step-by-step explanation:

The picture isn't clear but i will try,

ax+b>d

a<0

Then,

1.x>(d-b)/a

xa>d-b

ax+b>d

Which is true, thus x>(d-b)/a is true.

2.x<(d-b)/a

ax<d-b

ax+b<d

Which is false, thus x<(d-b)/a is false.

3.x<d/a-b

x<(d-ab)/a

ax<d-ab

ax+ab<d

Which is not given, thus x<d/a-b is false.

4.x>d/a-b

x>(d-ab)/a

ax>d-ab

ax+ab>d

Which is not given, thus x>d/a-b is false.

If seven radical 2 means [tex]7\sqrt{2}[/tex], then the number is irrational.

It means that it goes on and on after the decimal place.

√2 is a surd, so it's irrational.

Answer:

B

Step-by-step explanation:

3/7 I think it's that And I count it