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const2013 [10]
2 years ago
10

Solve the system of equations with substitution or elimination method. please help 2x+y=4 and 6x+7y=12

Mathematics
2 answers:
GuDViN [60]2 years ago
8 0

Answer:

x=2-y/2

y=12/7-6x/7

Step-by-step explanation:

klemol [59]2 years ago
4 0
I solved using elimination, multiplying the first equation by -3. My work is shown in the attached image.
x=2
y=0

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Data:

P (Final population) = ?
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r (rate) = 4,1% = 0,041
t (time in years) = 17

P = Po - (Po*r*t)
P = 81712 -(81712*0,014*17)
P = 81712 - 56953.264
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\boxed{P \approx 24759}

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Write the number with the same value as 32 tens
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The number with the same value as 32 tens is 320.
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4 years ago
Find the Antilog of 547.840​
bija089 [108]

Answer:

It's impossible because the figure is greater than 10

Step-by-step explanation:

{ \boxed{ \bf{antilog \: of \: x =  \frac{x}{ log} =  {10}^{x}  }}}

Therefore:

{ \sf{anti(547.840) =  {10}^{547.840} }} \\ { \tt{ \red{math \: error \: !}}}

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3 years ago
20 POINTS + BRAINLIEST AND THANKS
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Rewrite the function f(x)=-2(x+2)^2+6 in the form f(x)=ax^2+bx+c
Romashka [77]

Answer:

f(x) = -2x² - 8x - 2

General Formulas and Concepts:

  • Order of Operations: BPEMDAS
  • Expand by FOIL (First Outside Inside Last)
  • Standard Form: f(x) = ax² + bx + c
  • Vertex Form: f(x) = a(bx + c)² + d

Step-by-step explanation:

<u>Step 1: Define function</u>

Vertex Form: f(x) = -2(x + 2)² + 6

<u>Step 2: Find Standard Form</u>

  1. Expand by FOILing:                         f(x) = -2(x² + 4x + 4) + 6
  2. Distribute -2:                                     f(x) = -2x² - 8x - 8 + 6
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8 0
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