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inn [45]
3 years ago
14

How do I solve this equation and check the solutions?

Mathematics
1 answer:
Law Incorporation [45]3 years ago
7 0

x =  - 10 \\

x = 2

Step-by-step explanation:

\sqrt{20 - 8x}  =  \times

20 - 8x = {x}^{2}

{x}^{2}  + 8x - 20 = 0

x =  - 10

x = 2

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Pls answer will mark Brainy m
Tpy6a [65]

Answer:

d(4) = 64

Step-by-step explanation:

Using the recursive formula

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d(4) = d(3) + 17 = 47 + 17 = 64

8 0
3 years ago
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For the following relation the domain would be all of the x coordinates.
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What is the answer to this problem?
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3 years ago
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3 years ago
The olympic record for the marathon is 2 h, 9 min, 21 s. the marathon distance is 26 mi, 385 yd. determine the average speed (in
Vika [28.1K]
The average speed of an object moving is its rate of change per time interval. It is equal to the total distance traveled divided by the total time it takes to travel that distance. We calculate the average speed of the olympic record as follows:

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distance 1= <span>26 mi
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total distance = 26 + 0.21875 = 26.21875 mi

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total time = 2 + 0.15 + 0.0058 = 2.1558 h

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3 years ago
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