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worty [1.4K]
3 years ago
13

Expand the following - (-3x + y + z) square​

Mathematics
1 answer:
lbvjy [14]3 years ago
3 0

Answer:

9x square + y squared + z squared

Step-by-step explanation:

Multiply all the numbers by '-'. Then square them all

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The point C(2,3) is translated along a vector that is parallel to the line y=3x-2. The translation vector has magnitude square r
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Step-by-step explanation:

The translation vector v can be resolved into its x and y components, where x² + y² = 10 (Pythagoras' Theorem) and y = 3x

(parallel to y = 3x - 2, slope = 3).

We have x² + (3x)² = 10,

=> x² + 9x² = 10, 10x² = 10, x = 1 or x = -1.

When x = 1, y = 3. When x = -1, y = -3.

Therefore 2 possible translation vectors

are (1, 3) or (-1, -3).

First new C' = (2 + (1), 3 + (3)) = (3, 6).

Second new C'= (2 + (-1), 3 + (-3)) = (1, 0).

The possible images are (3, 6) and (1, 0).

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3 years ago
What is the difference between -120 and 400?
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Answer:

-120 is a negative and 400 is a positive

Step-by-step explanation:

also there is a 520 difference

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3 years ago
The population of a town is increasing by 606 people per year. State whether this growth is linear or exponential. If the popula
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6 0
4 years ago
How do i solve this? (by factoring)<br> x(x+3)=x+8
AfilCa [17]

\sf x\left(x+3\right)=x+8\\\\\\\\x^2+3x=x+8\\\\\\\\\sf \boxed{\sf\mathrm{Subtract\:}8\mathrm{\:from\:both\:sides}}\\\\\\\\\sf x^2+3x-8=x+8-8\\\\\\\\\sf \boxed{\sf \mathrm{Simplify}}\\\\\\\\\sf x^2+3x-8=x\\\\\\\\\boxed{\sf \mathrm{Subtract\:}x\mathrm{\:from\:both\:sides}}\\\\\\\\\sf x^2+3x-8-x=x-x\\\\\\\\\boxed{\sf \mathrm{Simplify}}\\\\\\\\\sf x^2+2x-8=0\\\\\\\\\boxed{\sf factor~ x^2+2x-8=0}\\\\\\\\\sf \left(x-2\right)\left(x+4\right)=0

\sf \boxed{\sf \mathrm{Using\:the\:Zero\:Factor\:Principle:\quad \:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0}\\\\\\\\\sf x-2=0\quad \mathrm{or}\quad \:x+4=0\\\\\\\\\boxed{\sf \{x=2\}}\\\\\boxed{\sf \{x=-4 \} }

3 0
3 years ago
Write an explicit rule for the nth term of the sequence<br><br> 64,48,36,27
melisa1 [442]

Answer:

  • aₙ = 64(3/4)ⁿ⁻¹

Step-by-step explanation:

<u>Given sequence:</u>

  • 64, 48, 36, 27

<u>We can observe that:</u>

  • 27/36 = 3/4
  • 36/48 = 3/4
  • 48/64 = 3/4

This is a GP with the first term of 64 and common ratio of 3/4.

<u>The equation for the nth term is:</u>

  • aₙ = 64(3/4)ⁿ⁻¹
6 0
3 years ago
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