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zubka84 [21]
2 years ago
10

I don't understand this quadratic functions question please help.

Mathematics
1 answer:
djyliett [7]2 years ago
6 0
I think it would be b
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Devaughn's age is three times Sydney's age. The sum of their ages is 80. What is Sydney's age?
Gekata [30.6K]
U times any number by 3 and see witch ones the closest
27x3=81 that's what I think and that's the closest
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3 years ago
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Dangers drinking alcohol in young people today and causes of it​
Minchanka [31]

Answer:

School problems, such as higher rates of absences or lower grades.

Social problems, such as fighting or lack of participation in youth activities.

Legal problems, such as arrest for driving or physically hurting someone while drunk.

Physical problems, such as hangovers or illnesses.

hope this helps

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Step-by-step explanation:

4 0
3 years ago
Pls pls pls pls I will mark you Brainest.
GalinKa [24]

Answer:

1) 2

2) 3

3) 4

4) 5

Step-by-step explanation:

Plug in the c variables in the table into the equation to find w.

4 0
3 years ago
What are the coordinates of the vertex of the parabola represent by the equation y=-5x^2+30x-25
Jobisdone [24]

Answer:

The coordinate of the  vertex of the parabola is (h,k) =  (3,20)

Step-by-step explanation:

The given equation of the parabola is y=-5x^2+30x-25

Now, the General Parabolic Equation is of the form:

y = a (x-h)^2 + k, then the vertex is the point (h, k).

Now, to covert the given equation in the standard form:

y=-5x^2+30x-25   = -5(x^2  -6x   + 5)

Using the COMPLETE THE SQUARE METHOD,

-5(x^2  -6x   + 5)  = -5(x^2  -6x  +  (3)^2 +  5  - (3)^2)\\\implies -5(((x^2  -6x +(3)^2)  + 5 - 9)\\= -5((x-3)^3 -4)\\= -5(x-3)^2 + 20

ory = -5(x-3)^2 + 20

⇒The general formed equation of the given parabola is

y  = -5(x-3)^2 + 20

Comparing this with general form, we get

h = 3, k = 20

Hence, the coordinate of the  vertex of the parabola is (h,k) =  (3,20)

5 0
3 years ago
When P = 2l + 2w is solved for w, the result is:?
Aleks04 [339]

Answer:

\frac{p-2l}{2}

Step-by-step explanation:

move the 2l to the other side by subtracting 2l on both sides. you get P - 2l = 2w. now divide both sides by 2 to get the answer.

6 0
2 years ago
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