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NeTakaya
2 years ago
14

Which of the following are solutions to the equation below (5x+1)^2=7? Check all that apply.

Mathematics
2 answers:
Dahasolnce [82]2 years ago
8 0

Answer:C E (apex) !!


Step-by-step explanation:


stiv31 [10]2 years ago
4 0
(5x+1)² = 7; expand: 25x² + 10x +1 = 7 or 25x² + 10x -6 = 0

Solve this quadratic for x:

x = [-b + √(b² - 4ac)]/2a and x = [-b - √(b² - 4ac)]/2a
Plug the values and you'll find :
x = (- √7 - 1)/5 (answer C)
x = (+√7 -1)/5  (answer E)

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Step-by-step explanation:

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3 0
2 years ago
The graph below shows the height of a tunnel f(x), in feet, depending on the distance from one side of the tunnel x, in feet:
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Part A) x-intercepts simply show that when the value of the function is zero. Vertex coordinates show that when the function obtains its maximum value. When x=50, function obtains its maximum value and it's 75. The function is increasing in the interval (0, 50) and decreasing in the interval (50, 100). In regard to the height and distance of the tunnel, these numbers show that decreasing and increasing intervals are symmetric. Each number from the intervals has its own pair in the corresponding interval and they are located in the same distance from the midpoint (50,75)

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4 0
3 years ago
Read 2 more answers
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olga_2 [115]

Answer:

2.28%

Step-by-step explanation:

mean = 5 years = 60 months

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Answer:

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Step-by-step explanation:

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