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Natalka [10]
3 years ago
8

Can someone please find the vertex?

Mathematics
1 answer:
crimeas [40]3 years ago
8 0
You have the correct axis of symmetry value. Nice work.

Plug that x value into the equation to get...
y = -2x^2 - 12x - 10
y = -2*(-3)^2 - 12*(-3) - 10 <<-- replace every x with -3; then use PEMDAS
y = -2*(9) - 12*(-3) - 10
y = -18 + 36 - 10
y = 18 - 10
y = 8

The vertex is the ordered pair (-3, 8)

Note: the axis of symmetry is the vertical line through the vertex

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4 years ago
In the freshman class, 62% of the students take math, 49% take science, and 38% take both science and math. what percentage take
antoniya [11.8K]

we are given

62% of the students take math

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n(M)=62

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n(M∪S)=n(M)+n(S) -n(M∩S)

now, we can plug values

and we get

n(M∪S)=62+49 -38

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the percentage takes at least one science or math course is 73%..........Answer

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