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3 years ago

Question 1:

Mathematics

2 answers:

Rudiy273 years ago

8 0

Answer:

Answer 1.)

⇒ 4x - 15 + 2x = x +20

⇒ 6x -15 = x +20

⇒ 5x = 35

⇒ x = 7

Answer 2.)

⇒ 2(2x−5)=20−x

⇒ 4x - 10 = 20 - x

⇒ 5x = 30

⇒ x = 6

Answer 3.)

⇒ 3−4x=10x+10

⇒ 14x = -7

⇒ x = -1/2

Answer 4.)

⇒ 4(2x−1)=−10(x−5)

⇒ 8x - 4 = -10x + 50

⇒ 18x = 54

⇒ x = 3

Answer 5.)

⇒ 5/3 = 6/x + 2

⇒ x = -18

Answer 6.)

⇒ x - 7/5 = -3

⇒ x = -8/5

Answer 7.)

⇒ 4/5x - 3 = 2/3x + 5

⇒ 12x - 10x = 120

⇒ x = 60

Answer 8.)

⇒ 6x − 3 = 2 + 4x − 11

⇒ 2x = -6

⇒ x = -3

Answer 9.)

⇒ 3 − (4−x) = 5 + 3(x−4)

⇒ 3 - 4 + x = 5 + 3x - 4

⇒ -1 + x = 1 +3x

⇒ x = -1

Answer 10.)

⇒ 10 + 5x − 2 = 2 − 3x + 6

⇒ 8 + 5x = 8 - 3x

⇒ x = 0

Roman55 [17]3 years ago

3 0

Answer:

1. x=7

2.x=6

3.x= -1/2

4.x=3

5.x=-18

6.x= -8/5

7. x=60

8. x=-3

9. x=3

10. x=0

Step-by-step explanation:

did them as fast i could

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maksim [4K]

Answer: Option 'C' is correct.

Step-by-step explanation:

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Answer:

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RSB [31]

Answer:

$\Large \boxed{-\dfrac{5}{4}(x+3)(x+1)(x-2)}$

Step-by-step explanation:

Hello,

Based on the indication, we can write this polynomial as below, k being a real number that we will have to identify (degree = 3 and we have three zeroes -3, -1, and 2).

$\Large \boxed{k(x+3)(x+1)(x-2)}$

We know that the point (1,10) is on the graph of this function, so we can say.

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Then the solution is:

$\large \boxed{-\dfrac{5}{4}(x+3)(x+1)(x-2)}$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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