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3 years ago

9

Kelly had $25 in her purse and Dante has d dollars in his wallet which algebraic expression represents the total amount that jel

ly and Dante have

1 answer:

olga_2 [115]3 years ago

7 0

25+D=total amount hope this helps :)

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challenge- you have 500- foot roll of chain link and a large field. you want to fence in a rectangular playground area. What are

Lynna [10]

the largest you can have without going over 500 feet is 22.71 in length and 22 in width.

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3 years ago

What are the coordinates of the vertex of the function f(x)=x^2+10x−3? (–5, –28) (–5, 28) (5, –28) (5, 28)

polet [3.4K]

Answer:

(-5,-28)

Step-by-step explanation:

Given

$f(x)=x^2+10x - 3$

Required

Find the coordinates of the vertex

Given that the function is a quadratic function;

The general form of a quadratic function is

$f(x)= ax^2+bx +c$

By comparison;

$a = 1\ b = 10\ and\ c = -10$

To calculate the coordinates of the vertex;

we start by calculating the x-coordinate;

$x = \frac{-b}{2a}$

Substitute 10 for b and 1 for a

$x = \frac{-10}{2*1}$

$x = \frac{-10}{2}$

$x = -5$

Substitute $x = -5$ in the given function;

$y=x^2+10x - 3$

$y=(-5)^2+10*-5 - 3$

$y=25-50 - 3$

$y=-28$

<em>Hence, the coordinates of the vertex is (-5,-28)</em>

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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