Help please............​
Help please............​ - 1

Answers

Answer 1
Answer:

Answer:

  (9x -2)(9x +2)

Step-by-step explanation:

Each of the terms in the difference is a perfect square, so the "perfect square trick" applies. The factors are the sum and difference of the square roots of the given terms.

  • √(81x²) = 9x
  • √4 = 2

  81x² - 4 = (9x +2)(9x -2)


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What is the value of the expression? 8 + 2 x 3--------------5 x 2 - 8

What appears to be the domain of the part of the exponential function graphed?A) 1 ≤ x ≤ 6
B) 1 ≤ ƒ(x) ≤ 6
C) –2 ≤ x ≤ 2
D) –2 ≤ ƒ(x) ≤ 2

Answers

Answer:

Option (C)

Step-by-step explanation:

Domain of a function is represented by the 'x' values on the graph.

Similarly, y-values of a function represents the range.

Therefore, options (B) and (D) will not be the answer as they are representing the function values or y-values.

Given segments starts form x = -2 and ends at x = 2 (Including these points).

Therefore, Domain of the segment will be [-2, 2] Or -2 ≤ x ≤2

Option (C) will be the correct option.

Answer:

B)  1 ≤ ƒ(x) ≤ 6

Step-by-step explanation:

this is the right answer I got it right on usa test prep

What's the answer for p2 when p=25 ​

Answers

Answer is 625
Hope it helps :)

Answer: p^2 = 25 ^2 = 625

The amount of carbon 14 still present is a sample after t yearsis given by the function C(t)=
Coe-.00012t
where co is the initial anong . estimate the age of a sample of
wood discoverd by a arecheologist if the carbon level in the sample
is only 20% of it orginal carbon 14 level.

Answers

Answer:

The age of this sample is 13,417 years.

Step-by-step explanation:

The amount of carbon 14 present in a sample after t years is given by the following equation:

C(t) = C_(0)e^(-0.00012t)

Estimate the age of a sample of wood discoverd by a arecheologist if the carbon level in the sampleis only 20% of it orginal carbon 14 level.

The problem asks us to find the value of t when

C(t) = 0.2C_(0)

So:

C(t) = C_(0)e^(-0.00012t)

0.2C_(0) = C_(0)e^(-0.00012t)

e^(-0.00012t) = (0.2C_(0))/(C_(0))

e^(-0.00012t) = 0.2

ln e^(-0.00012t) = ln 0.2

-0.00012t = -1.61

0.00012t = 1.61

t = (1.61)/(0.00012)

t = 13,416.7

The age of this sample is 13,417 years.

. Solve for x.
10xy=W

Answers

Answer:

x=W/10y

Step-by-step explanation:

Please help me find the correct answers ​

Answers

Answer:

P = 20 ft

h = 2 ft

B = 10.56 ft²

Step-by-step explanation:

P = 8.8 + 8.8 + 1.2 + 1.2 = 20 ft

h = 2 ft

B = 1.2 x 8.8 = 10.56 ft²

If 1 gallon of paint covers 300 square feet, how many gallonsare needed for a room 30' long x 20' wide x 12' high?

Answers

Answer:

can we be friends

Step-by-step explanation: