1) What are the domain and range of f(x)=-*+7?

Answer:

16

Step-by-step explanation:

f ( x ) = 3x² - 2x

To find : f ( - 2 )

f ( - 2 ) = f ( x )

Here,

x = - 2

f ( - 2 ) = 3 ( - 2 )² - 2 ( - 2 )

           = 3 ( 4 ) - 2*( - 2 )

           = 3*4 + 4

           = 12 + 4

f ( - 2 ) = 16

Answer:

5

ALL SIDES MUST BE THE SAME

Answer:

5 cm

Step-by-step explanation:

An equation is formed of two equal expressions. The solution of the equation √(x+12)=x is x=4.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The solution of the equation √(x+12)=x can be done as,

[tex]\sqrt{x+12} = x\\\\\text{Square both the sides of the equation}\\\\x+12=x^2\\\\x^2-x-12=0\\\\x^2-4x+3x-12=0\\\\x(x-4)+3(x-4)=0\\\\(x-4)(x+3)=0[/tex]

Equate each of the factors with 0,

[tex](x-4)=0\\x=4\\\\(x+3)=0\\x=-3[/tex]

Now, if we substitute the value of x in the equation given, only the value of x as 4 will satisfy the equation.

Thus, the solution of the equation √(x+12)=x is x=4.

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Answer:

Answer. so -7/8, -6/8, -5/8, -4/8, -3/8, -2/8 are the six no.

Step-by-step explanation:

Answer:

I beleive that the systems of transformation are that

Figure JKLM to Figure J' K' L' M' is a Rotation

Figure J' K' L' M' to Figure J" K" L" M" is a Dilation

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

you have to isolate your variable. To do this, you add 24 to each side. On the left side its 12+24 and on the right, its 24+(-24) which then equals zero. In simple terms, x=12+24

Answer:

x = 36

Step-by-step explanation:

Add 24 to 12 because 24 is minus, so when it is moved to the other side of the equation it is plus.

Answer:

Step-by-step explanation:

There are 4 different colors of pants.

There are 2 sweaters.

The total number of ways of making a particular pair of pants and a sweater = 4 * 2 = 8

Answer: there are 8 combinations of clothing

Answer:

B which is 2/4.

Step-by-step explanation:

Elin: worked for 2/4 + 1/4 = 3/4 of an hour on an assignment

Jocyln worked for 5/4 of an hour the same   assignment

The difference in time is 5/4 - 3/4 = 2/4 or 1/2 hour.

Note: when you subtract fractions, the denominators must be the same. What you subtract is the numerators (top part of the fraction).

Answer:

L= 15

Step-by-step explanation:

L= 9m + 2n        Given Equation

L = 9 (3) + 2 (-6) Substitute values for their variables

L= 27 + 2 (-6)     Simplify multiplication

L= 27 -12            Simplify multiplication (remember a positive times a

                          negative is a negative)

L= 15 (Simplify)

Answer:

109 - -37 = 146

Step-by-step explanation:

Answer:

146

Step-by-step explanation:

Answer:

76 feet^3

Step-by-step explanation:

Well, since s is showed three times on the large box, we can say they are all the same lengths. So, if one side is 4 feet long, then all side length, are 4. So, 4*4*4. This gets us 64.

So the large box's volume is 64, and the small one, is 12. The total volume is them added. 64+12. This gets us 76.

The answer is 76 feet^3

Answer:18

Step-by-step explanation: pretty much 6 plus 6 plus 6 you add six 3 times.

Answer:

do you hvae more imformation

Step-by-step explanation:

Answer:

180-20 = 160 = sum of the other two angles

3/(3+5) = 3/8 x 160 = 60 degrees

5/(3+5) = 5/8 x 160 = 100 degrees

or in radians the other two angles are pi/3 and 5pi/9

Step-by-step explanation:

THIS ANSWER IS CORRECT

BRAIN LESS ANSWER

Answer:

$15

Step-by-step explanation:

Sonia will take $57, and his grandparents will give another $78. 57 + 78 = 135. Sonia will have 135 dollars, but it is a 9 day vacation, so 135/9 = 15

Sonia will spend 15 dollars a day.

Answer:

- 10a² + a + 4

Step-by-step explanation:

( 12a² + 6a - 8 ) + ( - 22a² + 12 - 5a )

= 12a² + 6a - 8 - 22a² + 12 - 5a

= 12a² - 22a² + 6a - 5a + 12 - 8

= - 10a² + a + 4

Answer:

Step-by-step explanation:

Remark

There is an isolated plus sign in the middle so removing the brackets is going to allow you to collect like terms quickly and immediately.

Solution

12a^2 + 6a - 8 - 22a^2+ 12 - 15a     Group like terms together in pairs.

12a^2- 22a^2 + 6a - 15a - 8 + 12     Combine like terms.

Answer

-10a^2 - 9a + 4

Answer:

1 pound = .73 dollars rounded.

Step-by-step explanation:

This is like a rate question. Speed is in miles / hour only the units for this question is pound / dollar.

pounds = 33

dollars = 45

1 pound is 33/45

1 pound = 0.73

Answer:

24

Step-by-step explanation:

Area = 216

The area of triangle = 1/2 b * h

Since height = 18 --> 1/2 b * 18

so,

216 = 1/2 b * 18

Divide both sides by 18

12 = 1/2 b

Divide both sides by 1/2, (which is the same as multiplying both sides by 2)

24 = b

Answer:

24 inches

Step-by-step explanation:

Given:

[tex]\bullet \ \ \text{Height of sign: 18 inches} \\ \bullet \ \text{Area of Yield sign: 216 inches}^{2}[/tex]

The yield sign shown here is a triangle. Therefore, the question is asking to find the base of the triangle. Keep in mind that the area of a circle is 1/2 multiplied by the base multiplied by the height.  

[tex]\implies \text{Area of yield sign} = \dfrac{1}{2} \times \text{Base} \times \text{Height}[/tex]

Substitute the height and the area in the equation and simplify.

[tex]\implies \text{216 inches}^{2} = \dfrac{1}{2} \times \text{Base} \times 18[/tex]

[tex]\implies \text{216 inches}^{2} =\text{Base} \times 9[/tex]

Divide both sides by 9.

[tex]\implies \dfrac{\text{216}}{9} =\dfrac{\text{Base} \times 9}{9}[/tex]

[tex]\implies24 \ \text{inches} =\text{Base}[/tex]

Answer:

The value of x = 110°

Step-by-step explanation:

=> x° + 90° + 90° + 70° = 360 ° { sum of angles of a quadrilateral is 360 }

=> x + 250° = 360°

=> x = 360 - 250

=> x = 110°

Answer:

a) 186

b) 6

c) 42

Step-by-step explanation:

[tex]f(x) = m {x}^{2} - 6x - 3[/tex]

f'(1) = 12

f'(x) = 2mx - 6

12 = 2(1)m - 6

12 - 6 = 2m

[tex] \frac{2m}{2} = \frac{6}{2} [/tex]

[tex]m = 3[/tex]

[tex]f(x) = 2 {x}^{2} - 6x - 3[/tex]

a)

f(9) = 3( 9)^2 - 6(9) - 3

f(9) = 186

b)

f( 3) = 3( 3)^2 - 6( 3) - 3

f(3) = 6

c)

f( - 3) = 3( - 3)^2 - 6( - 3) - 3

f(-3) = 42

Answer:

false, because cos(x) has no definite answer, and equations aren't identities

Step-by-step explanation:

Answer:

−x^3+5x^2-2x−12

Step-by-step explanation:

Answer:

[tex]\sf Slope =\dfrac{1}{8}[/tex]

Step-by-step explanation:

(0,2) ;  (8 ,3)

Slope:

[tex]\sf \boxed{Slope = \dfrac{y_2-y_1}{x_2-x_1}}[/tex]

         [tex]\sf = \dfrac{3-2}{8-0}\\\\=\dfrac{1}{8}[/tex]

Answer:

[tex]\text Slope = \frac{1}{4}[/tex]

Step-by-step explanation:

the slope of the line that passes through the points

[tex]\large A\left( x_{1},y_{1}\right) \text{and} \ B\left( x_{2},y_{2}\right)[/tex]  

[tex]\large \text{slope} =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

the slope of the line that contains the points (-1, 2) and (3, 3) is :

[tex]\Longrightarrow \text{slope} =\frac{3-2}{3-\left( -1\right) }= \frac{1}{4}[/tex]

Answer:

0

Step-by-step explanation:

(2.2-2.2):2.2*100 =

(2.2:2.2-1)*100 =

100-100 = 0

Answer:

135ft^2

Step-by-step explanation:

area of trapzoid= (a+b)/(2)×h

area of traingle= 1/2(b)(h)

area of the shaded region equals (a+b)/(2)×h-1/2(b)(h)

so

(8+18)/(2)×15-(1/2)(8)(15)

=135ft^2

Answer:

$1.71

Step-by-step explanation:

Just took the test.

The cost of each juice bottle is $1.71.

Let, the cost of each juice bottle as "x".

Given:

Cost of chips = $2.94

Total cost before tax = $16.62

Isaac bought an 8-pack of juice bottles, so the total cost of the juice bottles is 8x.

The total cost of chips and juice bottles should be equal to the total cost before tax:

Cost of chips + Cost of juice bottles = Total cost before tax

$2.94 + 8x = $16.62

Now, solve for "x" the equation:

8x = $16.62 - $2.94

8x = $13.68

Divide both sides by 8:

x = $13.68 / 8

x = $1.71.

So, the cost of each juice bottle is $1.71.

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