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Contact [7]
3 years ago
7

2) Check to see if x = 2 is the solution to this equation Explain your

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
3 0
X=2 is not the answer because when substituting 2 for x in both problems the answers are different.
-4(2)-12=-20
2(2)-8=-4
-20 does nothing equal to -4 which means x=2 is invalid
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4 years ago
47. Which of the following represents 0.2% of 1/5?
erica [24]

First think of what 0.2% is as a fraction,

0.2\%=\frac{0.2}{100}=\frac{2\cdot10^{-1}}{10^2}=\frac{2}{10^3}=\frac{2}{1000}

Now multiply the fraction by a fifth,

\frac{2}{1000}\cdot\frac{1}{5}=\frac{2}{5000}

Which then simplifies to,

\frac{2}{5000}=\boxed{\frac{1}{2500}}

Hope this helps :)

8 0
3 years ago
Determine which number is a solution of the inequality. 0.2 < b
Lerok [7]
Answer: A) 4

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3 0
4 years ago
Read 2 more answers
2.) A zoo is raising a young elephant. They put him on a special high-protein diet to gain weight rapidly. He gains 6 kilograms
Elena L [17]

<u>Answer:</u>

  • The weight after 20 months is 210 kilos.

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

  • 1 month = 6 kilos
  • => 8 months = 6 x 8 = 48 kilos
  • => x + 48 = 138
  • => x = 90

<u>This means that the starting point is 90 kilos.</u>

  • => 1 month = 6 kilos
  • => 20 months = 6 x 20 kilos
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  • => 90 + 120 = weight in 20 months
  • => <u>210 kilos = weight in 20 months</u>

Hence,<u> the weight after 20 months is 210 kilos.</u>

Hoped this helped.

BrainiacUser1357

5 0
3 years ago
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What is the product3(x)^5(2x^2+4x+1)
ryzh [129]

Answer: 6x^7+ 12x^6+ 3x^5

Hope that helped

4 0
4 years ago
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