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zzz [600]
3 years ago
10

-3x + 6 = 18 show full work please

Mathematics
2 answers:
prisoha [69]3 years ago
6 0

Answer:

-4

Step-by-step explanation:

-3x + 6 = 18

subtract 6 from both sides

-3x + 6 - 6 = 18 - 6

-3x = 12

divide -3 to both sides

-3x/-3 = 12/-3

x = -4

liberstina [14]3 years ago
5 0

Answer:

Step-by-step explanation:

-3x + 6 = 18

-3x - 6 = 18 - 6

-3x = 12

x = -4

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Help me with these math questions....
Nady [450]

Answer: cotθ

<u>Step-by-step explanation:</u>

 tanθ * cos²θ * csc²θ

=  \dfrac{sin\theta}{cos\theta} * \dfrac{cos\theta*cos\theta}{} *\dfrac{1}{sin\theta*sin\theta}

= \dfrac{cos\theta}{sin\theta}

= cotθ

Answer: B

<u>Step-by-step explanation:</u>

The parent graph is y = x²

The new graph y = -x² + 3 should have the following:

  • reflection over the x-axis
  • vertical shift up 3 units

Answers:

  • a. Quadrant II
  • b. negative
  • c. \dfrac{\pi}{6}
  • d. C
  • e.-\dfrac{\sqrt{3}}{3}

<u>Explanation:</u>

\dfrac{17\pi}{6} - \dfrac{12\pi}{6} = \dfrac{5\pi}{6}

a) Quadrant 2 is: \dfrac{\pi}{2} < \theta < \pi

b) In Quadrant 2, cos is negative and sin is positive, so tan is negative

c) \pi-\dfrac{5\pi}{6} = \dfrac{\pi}{6}

d) the reference line is above the x-axis so it is negative -->  -tan\dfrac{\pi}{6}

e) tan(\dfrac{5\pi}{6})=\dfrac{1}{-\sqrt{3}}=-\dfrac{\sqrt{3}}{3}


4 0
3 years ago
Please helpp meeee!!!!
nata0808 [166]

Answer: The answer is                                       because                                                 , hope this helps :)

Step-by-step explanation:

6 0
2 years ago
Explain why please and make sure it is in full detail
Marysya12 [62]

Step-by-step explanation:

well,

(y - 7)² = (y - 7)(y - 7)

remember how to multiply 2 expressions ?

you have to multiply every term of one expression with every term of the other expression and sum the results all up (incl. considering their individual signs, of course).

so, when we do the multiplication, we get

(y - 7)(y - 7) = y×y - 7×y - 7×y + (-7)×(-7) =

= y² - 14y + 49

and that is clearly different to y² - 49

FYI

y² - 49 is the result of

(y - 7)(y + 7)

because

y×y + 7×y - 7×y + (-7)(7) = y² - 49

8 0
2 years ago
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AleksAgata [21]
A) condensation
B) the air around the glass of ice water is cooled. Moisture in the air condenses out once the temperature of the air reaches below the dew point.
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D) as the water is left out the warm temperatures allows the water to evaporate over time.
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chubhunter [2.5K]

Answer:

brainly.com

Step-by-step explanation:

sorry my bad copy paste error

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