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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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What is the length of the altitude of the equilateral triangle below
ale4655 [162]
Using Sine.

Sine = Opposite / Hypotenuse

sin 60° = a / (6√3)                        But sin60° = √3/2

√3/2 = a/(6√3)

Cross multiply

2*a = 6√3 * √3

2a = 6 * √(3*3)

2a = 6*3

a = 6*3/2

a = 3*3 = 9

Option E.

Hope this helps.
4 0
3 years ago
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Tems11 [23]

Answer: (1.) 1/3

(2.)2/3

(3.) 2:1

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Step-by-step explanation:

(1.) 12 mult. problems and 12+24=36 total so 12/36 =1/3

(2.) 24 div. problems and 36 totals so 24/36 =2/3

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6 0
3 years ago
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three different accounts are described below. order the accounts to their values after 10 years, from greatest to least.
Sedbober [7]

Answer

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Step-by-step explanation:

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6 0
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Hi!

Put in the values for x and y.

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4 0
3 years ago
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<h3>1/4</h3>

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3 years ago
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