3 years ago

HELP PLS

Mathematics

1 answer:

shtirl [24]3 years ago

6 0

Answer:

Step-by-step explanation:

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128,955 round to the nearest ten thousand

Studentka2010 [4]

Answer:

128,955 rounds to 130000 i believe

Step-by-step explanation:

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3 years ago

Joey opened a bank account 5 years ago with $100.

Gelneren [198K]

$200 a year, for the last 5 years, equal $1,000. That is a 20% increase.

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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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4 years ago

Drag each description to the correct location on the table.

77julia77 [94]

Is there supposed to be a table somewhere here?

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3 years ago

Read 2 more answers

5 of 12

prisoha [69]

Percent change = (New-Old)/Old x 100%
(12-10)/10 x 100% = 20%
ANSWER: 20% change (increase)

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3 years ago