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Leno4ka [110]
2 years ago
10

Simplify this expression: 5(2x² + 2x + 4) - 3x(x + 2) *ill give brainliest :)​

Mathematics
1 answer:
inysia [295]2 years ago
5 0

Answer:
7x2 + 4 x + 20

Step-by-step explanation:

Subtract 3x2 from 10x2.7x2+10x+20−6xSubtract 6x from 10x.7x2+4x+20

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Identify the solution to the following inequality: -1/2 (x+3) > x - 3
mrs_skeptik [129]

Answer:

A

Step-by-step explanation:

- \frac{1}{2} (x + 3) > x - 3 ( multiply both sides by 2 to clear the fraction )

- (x + 3) > 2x - 6 ← distribute parenthesis on left side by - 1

- x - 3 > 2x - 6 ( subtract 2x from both sides )

- 3x - 3 > - 6 ( add 3 to both sides )

- 3x > - 3

divide both sides by - 3, reversing the symbol as a result of dividing by a negative quantity

x < 1

8 0
2 years ago
Read 2 more answers
DOES ANYONE KNOW HOW TO DO THESE???
MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

7. The horizontal translation is 3 units to the right, this is determined by the value that is being added or subtracted to x directly. In this case, x is being subtracted by 3 meaning that it is translated 3 units to the right.

8. It is being translated 2 units up. This is determined by the number that is added to the quadratic equation. In this case, it is increased by 2 which means an upward translation. If it was being subtracted it would be a downward translation.

9. Yes, when a quadratic equation has a negative sign outside of it which changes its values it means that it is being reflected.

6 0
3 years ago
You need to put your reindeer, Balthazar, Rudy, Jebediah, and Ezekiel, in a single-file line to pull your sleigh. However, Ezeki
Strike441 [17]

Answer:12

Step-by-step explanation:

Given

Balthazar,Rudy,Jebediah and Ezekiel in a single-File line to pull sleigh

Jebediah and Ezekiel Stay together

i.e. we need to arrange three person considering Ezekiel and jebediah as Single person

therefore 3 person can  be arrange in 3! ways =6

and also Ezekiel and Jebediah can be arranged in 2 ways

Therefore a total of 2\times 6 ways are possible

7 0
3 years ago
Ase the points (-1,1) and (1, -1) on the graph of y = 2x -3
kondaur [170]

Step-by-step explanation:

y = 2x - 3 \\ plug \: x =  - 1 \\ y = 2( - 1) - 3 =  - 2 - 3 =  - 5 \neq1 \\ hence \: ( - 1, \: 1) \: does \: not \: lie \: on \: the \:  \\ graph \: of \: y = 2x - 3. \\  \\ y = 2x - 3 \\ plug \: x =  1 \\ y = 2 \times 1- 3 =  2 - 3 =  - 1 \\ hence \: ( - 1, \: 1) \:  lie \: on \: the \:   graph \: of \:  \\ y = 2x - 3. \\  \\

6 0
3 years ago
What is the domain and range of f(x) = -6x^2 - 10x 13?
Naddika [18.5K]
The domain of f(x) = -6x^2 - 10x + 13 is all real values.

For the range f(x) = -6x^2 - 10x + 13 written in vertex form is -6(x^2 + 5/3x - 13/6) = -6(x^2 + 5/3x + 25/36 - 13/6 - 25/36) = -6(x + 5/6)^2 - 6(-103/36) = -6(x + 5/6)^2 + 103/6
Range is all real values less than or equal to 103/6
8 0
3 years ago
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