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Romashka-Z-Leto [24]
3 years ago
7

( 6x ^2 - x + 3 ) +( - 2x + x^2 - 7 )​

Mathematics
1 answer:
alexandr1967 [171]3 years ago
8 0

Answer:

7x² - 3x - 4

Step-by-step explanation:

<u>Step 1: Write expression</u>

(6x² - x + 3) + (-2x + x² - 7)

<u>Step 2: Combine like terms (x²)</u>

7x² - x + 3 - 2x - 7

<u>Step 3: Combine like terms (x)</u>

7x² - 3x + 3 - 7

<u>Step 4: Combine like terms (constants)</u>

7x² - 3x - 4

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Pls help pls helppp i will giving breanlist
GaryK [48]

Answer:

[-5, 4) ∪ (4, ∞)

Step-by-step explanation:

Given functions:

f(x)=\dfrac{1}{x-3}

g(x)=\sqrt{x+5}

Composite function:

\begin{aligned}(f\:o\:g)(x)&=f[g(x)]\\ & =\dfrac{1}{\sqrt{x+5}-3} \end{aligned}

Domain: input values (x-values)

For (f\:o\:g)(x) to be defined:

x+5\geq 0 \implies x\geq -5

\sqrt{x+5}\neq 3 \implies x\neq 4

Therefore, -5\leq x < 4  and  x > 4

⇒  [-5, 4) ∪ (4, ∞)

3 0
2 years ago
May someone solve and give explanation
torisob [31]

Answer:

x = 15.7945

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

Angle θ = 33°

Opposite Leg = <em>x</em>

Hypotenuse = 29

<u>Step 2: Find Angle</u>

  1. Substitute in variables [sine]:                                                                           sin33° = x/29
  2. [Multiplication Property of Equality] Multiply 29 on both sides:                    29sin33° = x
  3. Rewrite:                                                                                                             x = 29sin33°
  4. Evaluate:                                                                                                           x = 15.7945
7 0
3 years ago
Joe is at the ice cream shop, and his house is 10 blocks north of the shop. The park is 10 blocks south of the ice cream shop. W
Furkat [3]

Answer:

The distance between the ice cream shop and Joe's house is the same as the distance between the ice cream shop and the park. So Joe is not closer to the park or his house, he is in the middle.

Step-by-step explanation:

We consider that the ice cream shop is the zero value in the number line. We assume that going north is positive (right side of the number line) and going south is negative (left side of the number line).

The house position is 10 block north of the ice cream shop, so it is represented by the integer 10.

The park is 10 blocks south of the ice cream shop, so it is represented by the integer -10.

The lower absolute value of the integer, the closer position from the ice cream shop.

If we calculate the absollute value of the House position:

|10|=10

Then, we calculate the the absollute value of the Parkposition

|-10|=10

In conclusion, the distance between the ice cream shop and Joe's house is the same as the distance between the ice cream shop and the park. Joe is in the middle.

5 0
3 years ago
Joshua is trying to decide if there is a relationship between a driver's age and the number of traffic tickets they get he surve
Rashid [163]

Hello!


The number of tickets is dependent on age, so age is the independent variable.


Think of it as a y = mx equation. In this equation, x is the input, and y changes depending on the value of x inputted.


In this situation, y is the number of tickets, as y changes depending on the age x inputted. x is age, the independent variable.




4 0
3 years ago
The lovin lemon company sells a 4 gallon jug of lemonade for $24. the sweet and sour company sells an eight pack of 1quart bottl
bulgar [2K]
The one with gallons because that one is $6 and the other one is $2 so gallon has a higher unit price 
5 0
4 years ago
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