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Vsevolod [243]
3 years ago
14

How do you find the vertex and the axis of symmetry of the equation? y = 2x^2 + 28x - 10

Mathematics
2 answers:
Maurinko [17]3 years ago
8 0

Answer:

-7±3√6

Step-by-step explanation:

Digiron [165]3 years ago
5 0

Answer:

By completing the square and rewrite equation in the form of

y = a{(x   -  p)}^{2}  + q

Where the vertex is (p, q)

axis of symmetry is x=p

Step-by-step explanation:

The solution is in the picture

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uysha [10]
The answer is the 3x divided by 3 = -12 divided by 3
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Please help. 50 points + brainliest
Korvikt [17]

Answer:

1. (a-c)\sqrt{x} + b\sqrt{y}

2. 9m + 2\sqrt{n}

3. 6a

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Step-by-step explanation:

1. since a and c share the same squareroot x, you can combine these together.

2. First add like terms together. 4m - m + 6m = 9m. Then 5\sqrt{n} and -3\sqrt{n} combined equals 2\sqrt{n}

3. First simplify the square roots. squareroot of 16 is 4. square root of 49 is 7. square root of 81 is 9. They are all multiplied by a in the expression. Thus 4a - 7a + 9a = 6a

4. First simplify the radicals, they are not perfect. square root of 125 is equivalent to sqrt(25 * 5), which sqrt of 25 is 5, but we keep the sqrt of 5. For sqrt of 45, it is the same as sqrt9 * sqrt5. sqrt of 9 is the same as 3 and we keep sqrt 5. Thus we get the below:

5a\sqrt{5y} - 3b\sqrt{5y}

We can combine the two like terms and get the final answer above.

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3 0
3 years ago
Lisa's age is 4 yrs. older than three times Sammy's age. Lisa is 28 yrs. old. Let's represent Sammy's age.
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Answer:

D

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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