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Marina CMI [18]
2 years ago
12

Please I need help!!

Mathematics
2 answers:
zzz [600]2 years ago
8 0
The axis of symmetry is 5 because the formula for axis of symmetry is -b/2a so -(-10)/2(1) = 5
7nadin3 [17]2 years ago
7 0

Answer:

x=5

Step-by-step explanation:

If you graph the equation you can see that the axis of symmetry is x=5

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While attending a school carnival, you estimate the ratio of children to adults as If there are 180 people at the carnival, abou
Karolina [17]

Answer:

180-n_c

Step-by-step explanation:

Given that the ratio of children to adults is 2:1.

Let n_c and n_a be the number of children and adults in the school carnival.

So, \frac {n_c}{n_a} = \frac 2 1

\Rightarrow n_c = 2 n_a \cdots(i)

Given that the total number of peoples in the carnival =180

So, n_c + n_a = 180

\Rightarrow n_a = 180-n_c \cdots(ii)

Now, from equations (i) and (ii), we have

n_c = 2(180-n_c) \\\\\Rightarrow n_c = 360 -2 n_c \\\\\Rightarrow n_c +2n_c = 360 \\\\\Rightarrow 3 n_c = 360 \\\\\Rightarrow n_c = 360/3 = 120.

Hence, the number of children in attendance is 120.

5 0
3 years ago
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