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Komok [63]
2 years ago
5

I don't know what I did wrong. I tried it twice but it said it was wrong

Mathematics
1 answer:
Dafna1 [17]2 years ago
5 0

Answer:

I used Desmos. Heres a picture of what its supposed to look like.

Step-by-step explanation:

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Miguel has a points card for a movie theater. He receives 50 rewards points just for signing up. He earns 11.5 points for each v
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50 + 11.5x = 188

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4 0
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PLS NEED HELP!A club had 5 members in 2019, this year they now have 14 members. Calculate and interpret the percent change in th
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Answer: The percent changed because it increased by 180%.

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4 0
3 years ago
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What you s the distance between (13,-6) and (13,12) on the coordinate plane?
nignag [31]
Since both x values are the same and since the y values are 18 digits apart, the distance between both points is 18 units.
8 0
3 years ago
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The price of a stock rose from a yearly low of $9.68 to $18.61. what was the stock percent increase from its low price that year
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4 0
3 years ago
The sides of a triangle are x,x+1,2x-1 and its area is x root 10. Find the value of x
Marianna [84]
<span>You can use Heron's formula to solve this problem.

</span>A= \sqrt{s(s-a)(s-b)(s-c)} , where A is the area; a,b,с are the sides;  s<span> is the </span>semiperimeter<span> of the triangle
</span>s= \frac{a+b+c}{2}

<span>According to conditions:
</span>a = x
b = x+1
с = 2x-1

<span>Calculate the semiperimeter:
</span>s= \frac{x+x+1+2x-1}{2} = \frac{4x}{2}=2x

<span>Now we can compose and solve the equation according to Heron's formula:
</span>\sqrt{2x(2x-x)(2x-(x+1))(2x-(2x-1))}=x \sqrt{10}   \\  \sqrt{2x(x)(2x-x-1)(2x-2x+1)}=x \sqrt{10} \\  \sqrt{2x^2(x-1)(1)}=x \sqrt{10} \\  \sqrt{2x^3-2x^2}=x \sqrt{10}  \  \  \ |()^2 \\ 2x^3-2x^2=10x^2 \\ 2x^3-2x^2-10x^2=0 \\ 2x^3-12x^2=0 \ \ |:2 \\ x^3-6x^2=0 \\ x^2(x-6)=0 \\  \\ x^2=0 \\ x=0 \ \ \ \O \\ or \\ x-6=0 \\ x=6

<span>As a result, x = 6 is your answer.
 
I hope this helped.</span>
7 0
3 years ago
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