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Lina20 [59]
3 years ago
12

What are the possible values of x if (4x - 5)^2= 49? Check all that apply. →

Mathematics
2 answers:
Sonja [21]3 years ago
8 0

Answer:

the answers are -1/2 and 3

Step-by-step explanation:

allsm [11]3 years ago
7 0

Answer:-1/2 and 3

Step-by-step explanation:

i took the quiz

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The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 6 inches. If the length must
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H = x, L = 1.5 x;  
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Dimensions of the camera in terms of x:
x,  1.5 x,  6 - 2.5 x.
V = L x W x H
V = x * 1.5 x * ( 6 - 2.5 x ) = 9 x² - 3.75 x³
V ` = 18 x - 11.25 x² ( V max is when V` = 0 )
18 x - 11.25 x² = 0
x ( 18 - 11.25 x ) = 0
11.25 x = 18
x = 18 : 11.25
x = 1.6
The dimensions are:
L = 2.4
W = 2.0
H = 1.6
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