1. If A = 2x – 7x2 + 3 and B = 4x2 – 12x, what is A + B?

Answer:

2 1/3 / (-3 2/3) = -0.636363636  AKA 0.636

Step-by-step explanation:

Step-by-step explanation:

[tex]2 \frac{1}{3} \div ( - 3 \frac{2}{3} )[/tex]

[tex] \frac{7}{3} \div ( - \frac{11}{3} )[/tex]

[tex] \frac{7}{3} \times ( - \frac{3}{11} )[/tex]

=

[tex] - \frac{7}{11} [/tex]

Answer:

11 miles

Step-by-step explanation:

if she can jog 5.5 miles in 1 hour, than in 2, she can jog 11 miles, because 5.5(miles) x 2 (hours) = 11

hope this helps :)

a brainliest would be appreciated

9514 1404 393

Answer:

  25.5 years

Step-by-step explanation:

The multiplier for continuous compounding at annual rate r for t years is ...

  e^(rt)

You want the value of t when that is 3 and r=0.043.

  3 = e^(0.043t)

  ln(3) = 0.043t

  t = ln(3)/0.043 ≈ 25.549 . . . . years

Answer:

-2/5

Step-by-step explanation:

Answer:

3 square root 2.

Step-by-step explanation:

I think the answer is b (3 square root 2). the Pythagorean therom states that B^2+ B^2= C^2. we know that c squared is 36. 3 square root 2 is approximately 4.24. ( this squared is 17.98). 17.98 + 17.98 = 35.96.  If i round this up, it is 36.

Answer:

1. $200

2. $65

3. $70

Step-by-step explanation:

1. 4x50=200

2. 200-135= 65

3. 135-65= 70

Answer:

measure of both angles is 52°

x = 16

Step-by-step explanation:

5x - 28 = 3x + 4

2x - 28 = 4

2x = 32

x = 16

Plug in 16 for 'x': 3(16) + 4 = 48 + 4 = 52°

Answer:

Both are 56°

Step-by-step explanation:

5x-28=3x+4

x=16

5(16)-28= 56°

Answer:

x<24

Step-by-step explanation:

[tex]w + 6 \geqslant 24[/tex]

Answer:   (x, y, z) = (-3, 2, 4)

In other words, x = -3, y = 2 and z = 4.

You'll enter the number only into each box.

===============================================================

Explanation:

There are a few routes we can take to solve this. I'll use substitution.

First let's isolate y in the second equation.

2x - y + 3z = 4

2x + 3z = 4+y

4+y = 2x+3z

y = 2x+3z-4

This is then plugged into the first equation

3x+2y+4z = 11

3x+2( y )+4z = 11

3x+2( 2x+3z-4)+4z = 11 .... replace y with 2x+3z-4; since y = 2x+3z-4

3x+4x+6z-8+4z =11

7x+10z-8 = 11

7x+10z = 11+8

7x+10z = 19 .... we'll call this equation (4) and come back to this later

--------------------------------------

Move onto the third equation (of the original equations given)

Plug in y = 2x+3z-4

5x - 3y + 5z = -1

5x - 3( y ) + 5z = -1

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

5x - 6x - 9z + 12 + 5z = -1

-x - 4z + 12 = -1

-x - 4z = -1-12

-x - 4z = -13 ..... let's call this equation (5)

--------------------------------------

To recap, we found equation (4) and equation (5) to be

We can then solve for x in equation (5) like so

-x - 4z = -13

-x = -13 + 4z

-x = 4z - 13

x = -(4z - 13)

x = -4z + 13

This is then plugged into equation (4)

7x+10z = 19

7(-4z+13)+10z = 19 .... note how we now have one variable

-28z+91+10z = 19

-18z+91 = 19

-18z = 19-91

-18z = -72

z = -72/(-18)

z = 4

We can use this value of z to find x

x = -4z+13

x = -4(4)+13

x = -16+13

x = -3

Use the values of x and z to find y. We'll revisit the first equation in which we isolated y

y = 2x+3z-4

y = 2(-3)+3(4)-4

y = -6+12-4

y = 6-4

y = 2

So overall, the solution to this system is (x, y, z) = (-3, 2, 4)

-------------------------------

Checking the answer:

We'll replace x,y,z with the values we found.

Since all three equations are true when (x, y, z) = (-3, 2, 4), this verifies the answer completely. This is the only solution to the system. The system is independent and consistent.

Answer:

$42 [$7/person*6 people]+$6[$3 launch fee/raft*2 rafts]

Step-by-step explanation:

$48 total

PLEASE MARK BRAINLIEST

NEED IT FOR A NEW RANK

ty in advance:D

Answer:

The first step is to distribute.

Step-by-step explanation:

2(4x + 2)= 12

8x + 4 = 12

You distribute the 2 to 4x and 2.

Answer:

It would be 91 days

Step-by-step explanation:

Hope this helps :)

Answer:

0.4

Step-by-step explanation:

Answer:

A and B

Step-by-step explanation: Khan

Answer:

4

Step-by-step explanation:

The value of the hypotenuse x will be equal to √6.

Equations involving trigonometric functions that hold true for all possible values of the variables are known as trigonometric identities. The Pythagorean Theorem serves as the basis for some of the most popular trigonometric identities, including.

The study of correlations between triangles' side lengths and angles is known as trigonometry.

Given that the angles are 45 and the base is √3 the hypotenuse will be calculated as,

cosθ = Base / Hypotenuse

cos45 = √3 / x

x = √3 / ( 1 / √2)

x = √6

Therefore, the value of the hypotenuse x will be equal to √6.

To know more about trigonometry follow

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Answer:

A

Step-by-step explanation:

A function is a relationship between inputs where each input is related to exactly one output.

A function can be one-to-one and many-to-one but can not be one-to-many.

The relation that is a function is

(1, 1), (2, 2), (3, 3), (4, 4). (5, 8). C. ( 2, 7),

Option B is the correct answer.

A function is a relationship between inputs where each input is related to exactly one output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

A function can be one-to-one and many-to-one but can not be one-to-many.

A. (1, 0), (3.0), (1.1), (3, 1) (1.3)

This is not a function because we have one-to-many.

(1, 0) and (1, 1) are one-to-many.

B. (1, 1), (2, 2), (3, 3), (4, 4). (5, 8).

This is a function because it satisfies the function.

The given relation are one-to-one.

C. ( 2, 7), (6,5), (4.4), (3, 3), (2, 1)

This is not a function because we have one-to-many.

(2, 7) and (2, 1) are one-to-many relations.

D. (9. -3), (19, 3) (4, -2), (4, 2), (0, 0)

This is not a function because we have one-to-many relations.

(4, -2) and (4, 2) are one-to-many relations.

Thus,

The relation that is a function is

(1, 1), (2, 2), (3, 3), (4, 4). (5, 8). C. ( 2, 7),

Option B is the correct answer.

Learn more about functions here:

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Answer:

117 - 120 < -3

-3 < -3

False no

because it is not above -3

Step-by-step explanation:

Answer: No

Step-by-step explanation:

x = 9

y = 6

13x - 20y < -3?

Substitute the values of x and y

13(9) - 20(6) < - 3?

117 - 120 < -3?

-3 </ -3

-3 = -3

(9, 6) is not a solution

a = 45   b = 35.8   c = 57.503

Answer:

Step-by-step explanation:

Let's rewrite the given as:

Let the value is m and the expressions under 3rd roots are a and b, then we have

Cube the both sides:

Simplify in bits:

So the expression becomes:

Solve for m:

The answer is 1

Answer:

A' ( 2,3)

B' ( 5,5)

C ( 7,3)

D'(5,2)

Answer: 14.66 in

Step-by-step explanation:

Answer:

The slope is -6

Step-by-step explanation:

In the slope intercept form, it is y=mx+b, where m is the slope and b is the y-intercept

Therefore, -6 is slope and -4 is y-intercept

Answer:

MONDAY: 2 hours

Tuesday: $34.65

Thursday: -54

Friday: 5 complete bags

Sorry that I did not do the question below wednesday but I still hope this helps.

Pls mark me brainliest.

Answer:

Put

[tex]x < - 2 - 2y[/tex]

Then put some of value to y and get x then we can graph it

Answer:

14

Step-by-step explanation:

i think it's 14. i hope i helped :)

Step-by-step explanation:

Y = 20 , X = 2

put in the equation

Y = KX ( given )

20 = K × 2

20/2 = K

10 = K

Answer:

90 miles

Step-by-step explanation:

15 miles/10 minutes = x miles/60 minutes

10*6=60 so 15*6=90  

Answer:

5 meters to the left

Step-by-step explanation:

Given that :

First travel : 14 meters to the right

Second travel : 19 m to the left

Final position :

First travel - Second travel.

(14 m - 19m)

Final position = - 5 m

-5m = 5 meters to the left.

Answer:

Answer of first one is. = angle 3

answer of second one is = angle 4

answer of third one is = angle 2

angle of fourth one is = 5

and last.one is angle 1