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Darya [45]
3 years ago
7

What is the answer?! Please help!

Mathematics
1 answer:
Step2247 [10]3 years ago
8 0
The notation "sqrt" is shorthand for "square root"

sqrt(-x+10)-x = 2
sqrt(-x+10) = x+2 ... add x to both sides
-x+10 = (x+2)^2 ... square both sides
-x+10 = x^2+4x+4 ... use FOIL
x^2+5x-6 = 0 ... get everything to one side; combine like terms
(x-1)(x+6) = 0 ... factor
x-1=0 or x+6 = 0 ... zero product property
x = 1 or x = -6  .... solve each sub-equation for x

The possible solutions are x = 1 or x = -6. We need to check each of those solutions

Let's check x = 1
sqrt(-x+10)-x = 2
sqrt(-1+10)-1 = 2
sqrt(9)-1 = 2
3-1 = 2
2 = 2
So x = 1 has been confirmed

Let's check x = -6
sqrt(-x+10)-x = 2
sqrt(-(-6)+10)-(-6) = 2
sqrt(6+10)+6 = 2
sqrt(16)+6 = 2
4+6 = 2
10 = 2
The last equation is false, so x = -6 is extraneous. It's not a true solution

----------------------------------

In summary, the value x = 1 is the only solution

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Answer

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The population of interest to the research is the set of all gun ownership status (yes/no) values for all adults in the country. Or all total adults in a country including those that own a gym or not. This is the population of interest. The sample is the 2550 individuals adults surveyed in the household telephone survey.

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I need to pass so can somebody answer this plz​
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B. x = y

Hope this helps! :)

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3 years ago
Can someone help me find the answer?
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Answer:

AC=9 cm

ABC is not a right angled triangle

Step-by-step explanation:

AB=8cm

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22=AB+BC+AC

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since AC is the longest,

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SGA is doing a fundraiser to sell candles for project graduation. Small candles cost $4.00 and large candles cost $6.00. They ha
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Given:

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Cost of large candles = $6.00

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