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Helen [10]
2 years ago
6

Whats 2x (3x-9x) if you answer this you get 10 points​

Mathematics
2 answers:
Masteriza [31]2 years ago
7 0

Answer:

2x(3x-9x)

=2x(-6x)

=-12x^2

frutty [35]2 years ago
3 0

Answer:

- 12x²

Step-by-step explanation:

Given

2x(3x - 9x)

= 2x(- 6x)

= - 12x²

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Please help I will give thank 5 stars 50 points and make brainliest
Alexandra [31]
Part A= the starting point is in quadrant 2 and the finishing point is in quadrant 4
is say this because the starting points X and Y value is Neg,Pos there is only one quadrant that has Neg X and Pos Y and that is quadrant 2 and for the finishing point its X and Y value is Pos,Neg and there is only one quadrant that has Pos X and Neg Y and that is quadrant 4 

Part A=starting point at quadrant 2 and finishing point at quadrant 4 explanation is above.

Part B= the starting point and the are checkpoint have the same Y and opposite but same X they are equally far form 0 but relative to the finishing point the checkpoint is closer by 2 units on the X axis and the starting point is farther by 2 units on the X axis 
 
7 0
3 years ago
After heating up in a teapot, a cup of hot water is poured at a temperature of
xxTIMURxx [149]

Answer:

  • k ≈ 0.060
  • T(4) ≈ 178 °F

Step-by-step explanation:

The desired formula parameters for Newton's Law of Cooling can be found from the given data. Then the completed formula can be used to find the temperature at the specified time.

__

<h3>Given:</h3>

  T(t)=T_a+(T_0-T_a)e^{-kt}\\\\T_a=68,\ T_0=208,\ (t,T)=(3,185)

<h3>Find:</h3>

  k

  T(4)

<h3>Solution:</h3>

Filling in the given numbers, we have ...

  185 = 68 +(208 -68)e^(-k·3)

  117/140 = e^(-3k) . . . . . subtract 68, divide by 140

  ln(117/140) = -3k . . . . . . take natural logarithms

  k = ln(117/140)/-3 ≈ 0.060

__

The temperature after 4 minutes is about ...

  T(4) = 68 +140e^(-0.060·4) ≈ 68 +140·0.787186

  T(4) ≈ 178.205

After 4 minutes, the final temperature is about 178 °F.

3 0
2 years ago
Find the value of 8/15×2/13 Although these numbers aren't quite as nice as the ones from the example, the procedure is the same,
xz_007 [3.2K]

Answer:

\frac{16}{195}

Step-by-step explanation:

To obtain the result of a fractions multiplication we need to multiply both numerators and the divide by the multiplication of the denomitators. In general, given a,b,c,d real numbers with b and d not zero, we have that

\frac{a}{b}*\frac{c}{d}=\frac{a*c}{b*d}

Substituting a,b,c and d for 8,15,2 and 13 we obtain that

\frac{8}{15}* \frac{2}{13} =\frac{16}{195}

3 0
3 years ago
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DerKrebs [107]

the answer is D because explosives dont know were to how to 11 D 7 but 2 do 57 people dont know were to do your welcome

6 0
3 years ago
1. Which of the following is equal to
andreyandreev [35.5K]

Answer:

D

Step-by-step explanation:

These I's are being used as sticks

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IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII + IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII If i were to reverse the sequence and use the 55 sticks and add 44 sticks to them it would be the same as me having 44 sticks and adding 55 more.

5 0
3 years ago
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