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Ray Of Light [21]
3 years ago
13

Is the following expression true or false? Show your work.

Mathematics
1 answer:
SOVA2 [1]3 years ago
7 0

Answer:

The expression is true.

Explanation:

 (x^2+8x+16)(x^2-8x+16)=(x+4)^2(x-4)^2=((x+4)(x-4))^2

 We know that (a +b)(a-b) = a²-b²

 So we have ,

      ((x+4)(x-4))^2=(x^2-4^2)^2=(x^2-16)^2

 Which is Right Hand Side  given.

So, the expression is true.

 

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Someone pls help with this!! i'll give brainliest
xxTIMURxx [149]

Answer:

103°

Step-by-step explanation:

Let's take the 3rd angle as θ:

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57 + 20 + θ = 180

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= 103°

Hence, the third angle is 103°

<em>Hope this helps and be sure to have a wonderful time ahead at Brainly! :D</em>

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3 years ago
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Oksanka [162]
Dang...H0: μ = 115 HA: μ ≠ 115 Sample mean = 120 Standard deviation = 25 Standard error of mean = σ / √ n Standard error of mean = 25 / √ 100 SE = 25/10 Standard error of mean 2.5 z = (xbar- μ ) / SE z = (120-115) / 2.5 z = 2 p-value = 2 P( z > 2) = 2(0.0228) = 0.0456 the data are statistically significant at level = .05, but not at level = .01. 2) H0: μ = 115 HA: μ ≠ 115 Sample mean = 119 Standard deviation = 25 Standard error of mean = σ / √ n Standard error of mean = 25 / √ 100 SE = 25/10 Standard error of mean 2.5 z = (xbar- μ ) / SE z = (119-115) / 2.5 z = 1.6 p-value = 2P( z > 1.6) = 2(0.0548) =0.1096 3) a statement about the population the researcher suspects is true, and is trying to find evidence for. 4) Sample mean = 80 Standard deviation = 20 Standard error of mean = σ / √ n Standard error of mean = 20 / √ 100 SE = 20/10 The Standard error of mean 2 Confidence interval 80-(2)(1.645) and 80+(2)(1.645) (76.7, 83.3)
4 0
4 years ago
What is the solution to the system of equations?
Ann [662]
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y = 2/3x + 3

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7 0
4 years ago
How many more shares in A&amp;D than shares in peer comms ltd. Would you be able to buy with $500 in year 2?
ycow [4]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The first option is the correct option

Step-by-step explanation:

 From the question w are told that

     The value of  shares for  A&D in 2 years is  z = $150

     The value of share for  peer comms Ltd is  a =$275

     

The number of  more share that you can buy fro A&D compared to peers  comms Ltd is

      L = 275 - 150

     L = $125

     

       

5 0
3 years ago
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Vladimir79 [104]
Group like terms then
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add d to both sides
-3=-2+2d
add 2 to both sides
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divide both sides by 2
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5 0
4 years ago
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