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den301095 [7]
2 years ago
12

The vertex of -5(x+2)^2-6

Mathematics
1 answer:
4vir4ik [10]2 years ago
7 0

Answer:

(0,6).  

Step-by-step explanation:

Consider the standardised form of y=ax2+bx+c. Written as y=a(x2+bax)+c. xvertex=(−12)×ba → (−12)×0−1=0.

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Dr. Potter provides vaccinations against polio and measles. Each polio vaccination consists of 444 doses, and each measles vacci
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Answer:

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Step-by-step explanation:

Let the number of polio vaccination given=x

Let the number of measles vaccination given=y

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Since each polio vaccination consists of 4 doses, and each measles vaccination consists of 2 doses. A total of 184 doses was given out.

4x+2y=184

To find the values of x and y, we solve the two equations simultaneously.

x+y=60             (1)

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From (1), x=60-y

Substitute x=60-y into equation 2.

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240-184=4y-2y

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Divode both sides by 2

y=23

Recall earlier that x=60-y

x=60-23=37

Dr Potter gave 37 polio vaccinations and 23 measles vaccination.

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